Infiniti G35 Workshop Manual

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Page 1

Edition: August 2004 Revision: July 2005

Publication No. SM5E-1V35U4

QUICK REFERENCE INDEX

GENERAL INFORMATION

B ENGINE

C TRANSMISSION/

TRANSAXLE

D DRIVELINE/AXLE

E SUSPENSION

F BRAKES

G STEERING H RESTRAINTS

I BODY

J AIR CONDITIONER

K ELECTRICAL

L MAINTENANCE M INDEX

General Information

Engine Mechanical

Engine Lubrication System

Engine Cooling System

Engine Control System

Fuel System

Exhaust System

ACC

Accelerator Control System

Clutch

Manual Transmission

Automatic Transmission

Transfer

Propeller Shaft

FFD

Front Final Drive

RFD

Rear Final Drive

FAX

Front Axle

RAX

Rear Axle

FSU

Front Suspension

RSU

Rear Suspension

Road Wheels & Tires

Brake System

Parking Brake System

BRC

Brake Control System

Power Steering System

Seat Belts

SRS

Supplemental Restraint System (SRS)

Body, Lock & Security System

Glasses, Window System & Mirrors

Roof

Exterior & Interior

Instrument Panel

Seat

ATC

Automatic Air Conditioner

Starting & Charging System

Lighting System

Driver Information System

Wiper, Washer & Horn

BCS

Body Control System

LAN

LAN System

Audio Visual, Navigation & Telephone System

ACS

Auto Cruise Control System

Power Supply, Ground & Circuit Elements

Maintenance

IDX

Alphabetical Index

A B C D

All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any form, or by any me ans, ele ctronic , me cha nic al, rec ordin g or oth erwise, wit hout th e prior written permission of Nissan Motor Company Ltd., Tokyo, Japan.

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This manual contains maintenance and repair procedure for the 2005 INFINITI G35.

In order to assure your safety and the efficient functioning of the vehicle, this manual should be read thoroughly. It is especially important that the PRECAUTIONS in the GI section be completely understood before starting any repair task.

All information in this manual is based on the latest product information at the time of publication. The right is reserved to make changes in specifications and methods at any time without notice.

IMPORTANT SAFETY NOTICE

The proper performance of service is essential for both the safety of the technician and the efficient functioning of the vehicle. The service methods in this Service Manual are described in such a manner that the service may be performed safely and accurately. Service varies with the procedures used, the skills of the technician and the tools and parts available. Accordingly, anyone using service procedures, tools or parts which are not specifically recommended by NISSAN must first be completely satisfied that neither personal safety nor the vehicle’s safety will be jeopardized by the service

method selected.

Page 3

PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!

INFINITI

Your comments are important to INFINITI and will help us to improve our Service Manuals.

Use this form to report any issues or comments you may have regarding our Service Manuals.

Please print this form and type or write your comments below. Mail or fax to:

SERVICE MANUAL: Model: Year:

PUBLICATION NO. (Refer to Quick Reference Index ):

Please describe any Service Manual issues or problems in detail:

Page number(s)

Nissan North America, Inc. Technical Service Information 39001 Sunrise Drive, P.O. Box 9200 Farmington Hills, MI USA 48331 FAX: (248) 488-3910

Note: Please include a copy of each page, marked with your comments.

Are the trouble diagnosis procedures logical and easy to use? (circle your answer) YES NO

If no, what page number(s)?

Please describe the issue or problem in detail:

Is the organization of the manual clear and easy to follow? (circle your answer) YES NO

Please comment:

What information should be included in INFINITI Service Manuals to better support you in servicing or repairing customer vehicles?

Note: Please include a copy of each page, marked with your comments.

DATE: YOUR NAME: POSITION:

DEALER: DEALER NO.: ADDRESS:

CITY: STATE/PROV./COUNTRY: ZIP/POSTAL CODE:

Page 4

INCH TO METRIC CONVERSION TABLE

(Rounded-off for automotive use)

inches mm inches mm

.100 2.54 .610 15.49 .110 2.79 .620 15.75 .120 3.05 .630 16.00 .130 3.30 .640 16.26 .140 3.56 .650 16.51 .150 3.81 .660 16.76 .160 4.06 .670 17.02 .170 4.32 .680 17.27 .180 4.57 .690 17.53 .190 4.83 .700 17.78 .200 5.08 .710 18.03 .210 5.33 .720 18.29 .220 5.59 .730 18.54 .230 5.84 .740 18.80 .240 6.10 .750 19.05 .250 6.35 .760 19.30 .260 6.60 .770 19.56 .270 6.86 .780 19.81 .280 7.11 .790 20.07 .290 7.37 .800 20.32 .300 7.62 .810 20.57 .310 7.87 .820 20.83 .320 8.13 .830 21.08 .330 8.38 .840 21.34 .340 8.64 .850 21.59 .350 8.89 .860 21.84 .360 9.14 .870 22.10 .370 9.40 .880 22.35 .380 9.65 .890 22.61 .390 9.91 .900 22.86 .400 10.16 .910 23.11 .410 10.41 .920 23.37 .420 10.67 .930 23.62 .430 10.92 .940 23.88 .440 11.18 .950 24.13 .450 11.43 .960 24.38 .460 11.68 .970 24.64 .470 11.94 .980 24.89 .480 12.19 .990 25.15 .490 12.45 1.000 25.40 .500 12.70 2.000 50.80 .510 12.95 3.000 76.20 .520 13.21 4.000 101.60 .530 13.46 5.000 127.00 .540 13.72 6.000 152.40 .550 13.97 7.000 177.80 .560 14.22 8.000 203.20 .570 14.48 9.000 228.60 .580 14.73 10.000 254.00 .590 14.99 20.000 508.00 .600 15.24

METRIC TO INCH CONVERSION TABLE

(Rounded-off for automotive use)

mm inches mm inches

1 .0394 51 2.008 2 .079 52 2.047 3 .118 53 2.087 4 .157 54 2.126 5 .197 55 2.165 6 .236 56 2.205 7 .276 57 2.244 8 .315 58 2.283

9 .354 59 2.323 10 .394 60 2.362 11 .433 61 2.402 12 .472 62 2.441 13 .512 63 2.480 14 .551 64 2.520 15 .591 65 2.559 16 .630 66 2.598 17 .669 67 2.638 18 .709 68 2.677 19 .748 69 2.717 20 .787 70 2.756 21 .827 71 2.795 22 .866 72 2.835 23 .906 73 2.874 24 .945 74 2.913 25 .984 75 2.953 26 1.024 76 2.992 27 1.063 77 3.031 28 1.102 78 3.071 29 1.142 79 3.110 30 1.181 80 3.150 31 1.220 81 3.189 32 1.260 82 3.228 33 1.299 83 3.268 34 1.339 84 3.307 35 1.378 85 3.346 36 1.417 86 3.386 37 1.457 87 3.425 38 1.496 88 3.465 39 1.535 89 3.504 40 1.575 90 3.543 41 1.614 91 3.583 42 1.654 92 3.622 43 1.693 93 3.661 44 1.732 94 3.701 45 1.772 95 3.740 46 1.811 96 3.780 47 1.850 97 3.819 48 1.890 98 3.858 49 1.929 99 3.898 50 1.969 100 3.937

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QUICK REFERENCE CHART G35

2005

QUICK REFERENCE CHART G35 PFP:00000

ENGINE TUNE-UP DATA (VQ35DE) ELS0003W

Engine model VQ35DE Firing order 1-2-3-4-5-6 Idle speed

A/T (In “N” position) M/T

Ignition timing (BTDC at idle speed)

CO% at idle 0.7 - 9.9 % and engine runs smoothly

Deflection adjustment Unit: mm (in) Tension adjustment

Drive Belt

Limit After adjustment Limit After adjustment

Alternator and power steeri ng oil pump belt

A/C compressor belt 12 (0.47)

Applied pushing force 98 N (10 kg, 22 lb) — Radiater cap relief pressure

Cooling system leakage testing pressure

7 (0.28)

Standard Limit 59 (0.6, 9)

Used belt

4 - 5

(0.16 - 0.20)

9 - 10

(0.35 - 0.39)

kPa (kg/cm

, psi)

rpm

New belt

3.5 - 4.5

(0.138 - 0.177)

8 - 9

(0.31 - 0.35)

650 ± 50

15° ± 5°

Used belt

730 - 818

294 (30, 66)

196 (20, 44)

78 - 98 (0.8 - 1.0, 11 - 14)

157 (1.6, 23)

(74.5 - 83.5,

164 - 184)

348 - 436

(35.5 - 44.5,

78 - 98)

Unit: N (kg, Ib)

New belt

838 - 926

(85.5 - 94.5,

188 - 208)

470 - 559

(48 - 57,

106 - 126)

Compression pressure

Spark plug (Platinum-tipped type)

kPa (kg/ cm Standard Minimum 980 (10.0, 142)/300 Differential limit between cylinders 100 (1.0, 15)/300 Make NGK Standard type PLFR5A-11 Hot type PLFR4A-11 Cold type PLFR6A-1 1 Gap (Nominal) mm(in) 1.1 (0.043)

, psi)/rpm

1,270 (13.0, 184)/300

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QUICK REFERENCE CHART G35

2005

FRONT WHEEL ALIGNMENT (Unl aden* )

AXLE 2WD Tire 18 inch Except 18 inch Camber Degree minute (Decimal degree) Minimum – 0° 50′ (– 0.83°)–1° 00′ (–1.00°)

Nominal – 0° 05′ (– 0.08°)– 0° 15′ (– 0.25°) Maximum 0° 40′ (0.67°)0° 30′ (0.50°) Left and right

difference

Caster Degree minute (Decimal degree) Minimum 7° 00′ (7.00°)5° 55′ (5.92°)

Nominal 7° 45′ (7.75°)6° 40′ (6.67°) Maximum 8° 30′ (8.50°)7° 25′ (7.42°) Left and right

difference

Kingpin inclination

Total toe-in mm (in) Minimum 0 (0) Distance (A – B) Nominal 1 (0.04)

Wheel turning angle (Full turn)

* : Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

Degree minute (Decimal degree) Minimum 3° 45′ (3.75°)5° 15′ (5.25°)

Nominal 4° 30′ (4.50°)6° 00′ (6.00°) Maximum 5° 15′ (5.25°)6° 45′ (6.75°)

Maximum 2 (0.08) Inside MInimum 35° 35′ (35.58°)37° 30′ (37.5°)38° 00′ (38.0°) Degree minute (Decimal degree) Nominal 38° 35′ (38.58°)40° 30′ (40.5 °)41° 00′ (41.0°)

Maximum 39° 35′ (39.58°)41° 30′ (41.5°)42° 00′ (42.0°) Outside Degree minute (Decimal degree)

Nominal 31° 00′ (31.0°)32° 30′ (32.5°)31° 40′ (31.7°)

45′ ( 0.75° )

AWD

ELS0003X

REAR WHEEL ALIGNMENT (Unladen*) ELS0003Y

TRANSMISSION Except 18 inch 18 inch Camber Degree minute (Decimal degree) Minimum – 1° 05′ (– 1.08°)– 1° 10′ (– 1.17°)

Nominal – 0° 35′ (– 0.58°)– 0° 40′ ( – 0.67°) Maximum – 0° 05′ (– 0.08°)– 0° 10′ ( – 0.17°)

Left and right difference 45′ (0.75°) Total-in mm (in) Minimum 0.1 (0.004) Distance ( A – B ) Nominal 2.8 (0.110)

Maximum 5.5 (0.217)

* : Fuel, engine coolant and oil full. Spare tire, jack, hand tools and mats in designa ted posi tion s.

BRAKE ELS0003Z

Unit : mm ( in ) AXLE 2WD AWD Front brake Pad wear limit 2.0 (0.079)

Rotor repair limit 26.0 (1.024) 22.0 (0.866)

Rear brake Pad wear limit 2.0 (0.079)

Rotor repair limit 14.0 (0.551)

Pedal free height

M/T model 154 - 164 (6.06 - 6.46) A/T model 162 - 172 (6.38 - 6.77)

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QUICK REFERENCE CHART G35

2005

Pedal depressed height*

* : Under force of 490 N( 50 kg, 110 lb ) with engine running.

M/T model More than 90 (3.54) A/T model More than 95 (3.74)

REFILL CAPACITIES ELS00040

UNIT Liter US measure Fuel tank 76 20 gal Engine Coolant ( With reservoir tank ) at MAX level

Drain and refill

Engine oil

Dry engine (Overhaul) 5.4 5-3/4 qt

Transmission

Transfer 1.25 2-5/8 pt

Differential carrier

Power steering system 1.0 1-1/8 qt

Air conditioning system

A/T 10.3 10-7/8 qt M/T 2. 9 3 -1/8 qt

Front 0.65 1-3/8 pt Rear 1.4 3 pt

Compressor oil 0.18 6.0 fl oz Refrigerant 0.55 kg 1.21 lb

With oil filter change 4.7 5 qt Without oil filter change 4.4 4-5/8 qt

8.7 9-1/4 qt

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ACCELERATOR CONTROL SYSTEM

B ENGINE

ACC

SECTION ACC

ACCELERATOR CONTROL SYSTEM

CONTENTS

PRECAUTIONS .......................................................... 2

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 2

ACCELERATOR CONTROL SYSTEM ...................... 3

Components .............................................................3

Removal and Installation ..........................................3

REMOVAL .............................................................3

INSTALLATION .....................................................3

INSPECTION AFTER INSTALLATION ..................3

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ACC-1

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PRECAUTIONS

PRECAUTIONS PFP:00001 Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT

BELT PRE-TENSIONER”

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front sea t belt , helps t o redu ce th e r isk or s everi ty of injury to th e driv er an d front passenge r for c ertain types of collisi on . Thi s s ys te m in cludes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information ne ce ss ary t o se rvi ce th e sy stem saf e ly is i nclu de d in th e SR S and SB se ct i on of th is Ser vic e Manual.

WARNING:

● To avoid rendering the SRS inoperative, which could inc rease the ris k of personal inju ry or death

in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.

● Improper maintenance, including incorrec t removal and installation of the SRS , can lead to per-

sonal injury caused by unintentional activation of th e sy ste m. For removal of Spiral Cable and Air Bag Module, see the SRS section.

● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors .

ABS009RB

Revision: 2005 July 2005 G35 Sedan

ACC-2

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ACCELERATOR CONTROL SYSTEM

ACCELERATOR CONTROL SYSTEM PFP:18005

Components ABS00FNP

ACC

PBIC2080E

1. Accelerator pedal assembly

Removal and Installation ABS000JI

REMOVAL

1. Disconnect accelerator pedal position sensor harness connector.

2. Loosen nuts, and remove accelerator pedal assembly.

CAUTION:

● Do not disassemble a cc ele rator pedal assembly. Do not remove accele r ator pedal position sen-

sor from accelerator pedal assembly.

● Avoid impact from dropping etc. during handling.

● Be careful to keep accelerator pedal assembly away from water.

INSTALLATION

Install in the reverse order of removal.

INSPECTION AFTER INSTALLATION

● Make sure that accelerator pedal mo ves smoothly within the whole operation range.

● Make sure that accelerator pedal securely returns to the original position.

● For the electrical inspection of acc elerator pedal position sensor, refer to EC-635, "DTC P212 2, P2123

APP SENSOR" , EC-642, "DTC P212 7, P2128 APP SENSOR" and EC-656, "DTC P2138 APP SENSOR" .

CAUTION:

When harness connecto r of ac celera tor pedal pos ition sen sor is dis conne cted, perform “Accelerator Pedal Released Position Learning”. Refer to EC-91, "

Learning" .

Accelerator Pedal Released Position

Revision: 2005 July 2005 G35 Sedan

ACC-3

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ACCELERATOR CONTROL SYSTEM

Revision: 2005 July 2005 G35 Sedan

ACC-4

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AUTO CRUISE CONTROL SYSTEM

K ELECTRICAL

SECTION ACS

AUTO CRUISE CONTROL SYSTEM

CONTENTS

AUTOMA TIC SPEED CONTROL DEVICE (ASCD) ..... 2

Description ............................................................... 2

ACS

Revision: 2005 July 2005 G35 Sedan

ACS-1

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AUTOMATIC SPEED CONTROL DEVICE (ASCD)

AUTOMATIC SPEED CONTROL DEVICE (ASCD) PFP:18930 Description AKS000CL

Regarding the information for ASCD system, refer to EC-29, "AUTOMATIC SPEED CONTROL DEVICE

(ASCD)" .

Revision: 2005 July 2005 G35 Sedan

ACS-2

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AUTOMATIC TRANSMISSION

C TRANSMISSION/TRANSAXLE

SECTION AT

AUTOMATIC TRANSMISSION

CONTENTS

INDEX FOR DTC ........................................................ 5

Alphabetical Index .................................................... 5

DTC No. Index ......................................................... 6

PRECAUTIONS .......................................................... 7

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 7

Precautions for On Board Diagnostic (OBD) System

of A/T and Engine .................................................... 7

Precautions .............................................................. 8

Service Notice or Precautions .................................. 9

PREPARATION ................. .................... .................... 10

Special Service Tools ............................................. 10

Commercial Service Tools .......................................11

A/T FLUID ................................................................. 12

Changing A/T Fluid .. ...... ....... ...... ....... .................... 12

Checking A/T Fluid ................................................. 12

A/T Fluid Cooler Cleaning ...................................... 14

A/T CONTROL SYSTEM .......................................... 17

Cross-Sectional View (2WD Models) ..................... 17

Cross-Sectional View (AWD Models) ..................... 18

Shift Mechanism ..................................................... 19

TCM Function ........... ...... ....... ...... ....... ...... ....... ....... 30

CAN Communication .............................................. 31

Input/Output Signal of TCM .................................... 31

Line Pressure Control ..................................... ....... 32

Shift Control ........................................................... 33

Lock-Up Control ..................................................... 35

Engine Brake Control ............................................. 36

Control Valve ............ ...... ....... ...... ........................... 37

ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 38

Introduction ............................................................ 38

OBD-II Function for A/T System ............................. 38

One or Two Trip Detection Logic of OBD-II ............ 38

OBD-II Diagnostic Trouble Code (DTC) ................. 38

Malfunction Indicator Lamp (MIL) ........................... 41

TROUBLE DIAGNOSIS ............................................ 42

DTC Inspection Priority Chart ................................ 42

Fail-safe ................................................................. 42

How to Perform Trouble Diagnosis for Quick and

Accurate Repair ......................................................44

A/T Electrical Parts Location .................................. 49

Circuit Diagram .......................................................50

Inspections before Trouble Diagnosis ....................51

Check before Engine Is Started ..............................56

Check at Idle ...........................................................56

Cruise Test - Part 1 ................................................. 60

Cruise Test - Part 2 ................................................. 63

Cruise Test - Part 3 ................................................. 64

Vehicle Speed at Which Gear Shifting Occurs .......65

Vehicle Speed at Which Lock-Up Occurs/Releases ...65

Symptom Chart .......................................................66

TCM Input/Output Signal Reference Values ........... 91

CONSULT-II Function (A/ T) ...... ...... ....... ...... ....... ....92

Diagnostic Procedure without CONSULT-II ..........105

DTC U1000 CAN COMMUNICATION LINE ............110

Description ................... ...... ....... ...... ......................110

On Board Diagnosis Logic ....................................110

Possible Cause .....................................................110

DTC Confirmation Procedure ...............................110

Wiring Diagram — AT — CAN ...............................111

Diagnostic Procedure ...........................................112

DTC P0615 START SIGNAL CIRCUIT ................. ..113

Description ................... ...... ....... ...... ......................113

CONSULT-II Reference Value ..............................113

On Board Diagnosis Logic ....................................113

Possible Cause .....................................................113

DTC Confirmation Procedure ...............................113

Wiring Diagram — AT — STSIG ..........................114

Diagnostic Procedure ...........................................115

DTC P0700 TCM .....................................................117

Description ................... ...... ....... ...... ......................117

On Board Diagnosis Logic ....................................117

Possible Cause .....................................................117

DTC Confirmation Procedure ...............................117

Diagnostic Procedure ...........................................117

DTC P0705 P ARK/NEUTRAL POSITION SWITCH .118

Description ................... ...... ....... ...... ......................118

CONSULT-II Reference Value ..............................118

On Board Diagnosis Logic ....................................118

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Possible Cause .....................................................118

DTC Confirmation Procedure ...............................118

Wiring Diagram — AT — PNP/SW .......................119

Diagnostic Procedure ...........................................120

DTC P0720 VEHICLE SPEED SENSOR A/T (REV-

OLUTION SENSOR) ...............................................122

Description ................ .......................... ..................122

CONSULT-II Reference Value ..............................122

On Board Diagnosis Logic ....................................122

Possible Cause .....................................................122

DTC Confirmation Procedure ...............................122

Wiring Diagram — AT — VSSA/T .........................124

Diagnostic Procedure ...........................................125

DTC P0725 ENGINE SPEED SIGNAL ...................127

Description ................ .......................... ..................127

CONSULT-II Reference Value ..............................127

On Board Diagnosis Logic ....................................127

Possible Cause .....................................................127

DTC Confirmation Procedure ...............................127

Diagnostic Procedure ...........................................128

DTC P0740 TORQUE CONVERTER CLUTCH

SOLENOID VALVE .................................................129

Description ................ .......................... ..................129

CONSULT-II Reference Value ..............................129

On Board Diagnosis Logic ....................................129

Possible Cause .....................................................129

DTC Confirmation Procedure ...............................129

Diagnostic Procedure ...........................................130

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .131

Description ................ .......................... ..................131

CONSULT-II Reference Value ..............................131

On Board Diagnosis Logic ....................................131

Possible Cause .....................................................131

DTC Confirmation Procedure ...............................131

Diagnostic Procedure ...........................................132

DTC P0745 LINE PRE SSU RE SO LEN OID VALVE .133

Description ................ .......................... ..................133

CONSULT-II Reference Value ..............................133

On Board Diagnosis Logic ....................................133

Possible Cause .....................................................133

DTC Confirmation Procedure ...............................133

Diagnostic Procedure ...........................................134

DTC P1702 TRANSMISSION CONTROL MODULE

(RAM) ......................................................................135

Description ................ .......................... ..................135

On Board Diagnosis Logic ....................................135

Possible Cause .....................................................135

DTC Confirmation Procedure ...............................135

Diagnostic Procedure ...........................................135

DTC P1703 TRANSMISSION CONTROL MODULE

(ROM) ....................................... ...............................136

Description ................ .......................... ..................136

On Board Diagnosis Logic ....................................136

Possible Cause .....................................................136

DTC Confirmation Procedure ...............................136

Diagnostic Procedure ...........................................136

DTC P1705 THROTTLE POSITION SENSOR .......137

Description ................ .......................... ..................137

CONSULT-II Reference Value ..............................137

On Board Diagnosis Logic ....................................137

Possible Cause .....................................................137

DTC Confirmation Procedure ................................137

Diagnostic Procedure ............................................138

DTC P1710 A/T FLUID TEMPERATURE SENSOR

CIRCUIT ..................................................................140

Description ............................................................140

CONSULT-II Reference Value ...............................140

On Board Diagnosis Logic ....................................140

Possible Cause .....................................................140

DTC Confirmation Procedure ................................140

Wiring Diagram — AT — FTS ...............................141

Diagnostic Procedure ............................................142

Component Inspection ..........................................144

DTC P1716 TURBINE REVOLUTION SENSOR ....145

Description ............................................................145

CONSULT-II Reference Value ...............................145

On Board Diagnosis Logic ....................................145

Possible Cause .....................................................145

DTC Confirmation Procedure ................................145

Diagnostic Procedure ............................................146

DTC P1721 VEHICLE SPEED SENSOR MTR .......147

Description ............................................................147

CONSULT-II Reference Value ...............................147

On Board Diagnosis Logic ....................................147

Possible Cause .....................................................147

DTC Confirmation Procedure ................................147

Diagnostic Procedure ............................................148

DTC P1730 A/T INTERLOCK .................................149

Description ............................................................149

On Board Diagnosis Logic ....................................149

Possible Cause .....................................................149

DTC Confirmation Procedure ................................149

Judgement of A/T Interlock ...................................150

Diagnostic Procedure ............................................150

DTC P1731 A/T 1ST ENGINE BRAKING ...............152

Description ............................................................152

CONSULT-II Reference Value ...............................152

On Board Diagnosis Logic ....................................152

Possible Cause .....................................................152

DTC Confirmation Procedure ................................152

Diagnostic Procedure ............................................153

DTC P1752 INPUT CLUTCH SOLENOID VALVE ..154

Description ............................................................154

CONSULT-II Reference Value ...............................154

On Board Diagnosis Logic ....................................154

Possible Cause .....................................................154

DTC Confirmation Procedure ................................154

Diagnostic Procedure ............................................155

DTC P1754 INPUT CLUTCH SOLENOID VALVE

FUNCTION ..............................................................156

Description ............................................................156

CONSULT-II Reference Value ...............................156

On Board Diagnosis Logic ....................................156

Possible Cause .....................................................156

DTC Confirmation Procedure ................................156

Diagnostic Procedure ............................................157

DTC P1757 FRONT BRAKE SOLENOID VALVE ...158

Description ............................................................158

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CONSULT-II Reference Value .............................. 158

On Board Diagnosis Logic ................................... 158

Possible Cause .................................................... 158

DTC Confirmation Procedure ............................... 158

Diagnostic Procedure ........................................... 159

DTC P1759 FRONT BRAKE SOLENOID VALVE

FUNCTION ........................ .......................... ............ 160

Description ........................................................... 160

CONSULT-II Reference Value .............................. 160

On Board Diagnosis Logic ................................... 160

Possible Cause .................................................... 160

DTC Confirmation Procedure ............................... 160

Diagnostic Procedure ........................................... 161

DTC P1762 DIRECT CLUTCH SOLENOID VALVE . 162

Description ........................................................... 162

CONSULT-II Reference Value .............................. 162

On Board Diagnosis Logic ................................... 162

Possible Cause .................................................... 162

DTC Confirmation Procedure ............................... 162

Diagnostic Procedure ........................................... 163

DTC P1764 DIRECT CLUTCH SOLENOID VALVE

FUNCTION ........................ .......................... ............ 164

Description ........................................................... 164

CONSULT-II Reference Value .............................. 164

On Board Diagnosis Logic ................................... 164

Possible Cause .................................................... 164

DTC Confirmation Procedure ............................... 164

Diagnostic Procedure ........................................... 165

DTC P1767 HIGH AND LOW REVERSE CLUTCH

SOLENOID VALVE ................................................. 166

Description ........................................................... 166

CONSULT-II Reference Value .............................. 166

On Board Diagnosis Logic ................................... 166

Possible Cause .................................................... 166

DTC Confirmation Procedure ............................... 166

Diagnostic Procedure ........................................... 167

DTC P1769 HIGH AND LOW REVERSE CLUTCH

SOLENOID VALVE FUNCTION ............................. 168

Description ........................................................... 168

CONSULT-II Reference Value .............................. 168

On Board Diagnosis Logic ................................... 168

Possible Cause .................................................... 168

DTC Confirmation Procedure ............................... 168

Diagnostic Procedure ........................................... 169

DTC P1772 LOW COAST BRAKE SOLENOID

VALVE ......................... ....................................... ..... 170

Description ........................................................... 170

CONSULT-II Reference Value .............................. 170

On Board Diagnosis Logic ................................... 170

Possible Cause .................................................... 170

DTC Confirmation Procedure ............................... 170

Diagnostic Procedure ........................................... 171

DTC P1774 LOW COAST BRAKE SOLENOID

VALVE FUNCTION ................................................. 172

Description ........................................................... 172

CONSULT-II Reference Value .............................. 172

On Board Diagnosis Logic ................................... 172

Possible Cause .................................................... 172

DTC Confirmation Procedure ...............................172

Diagnostic Procedure ...........................................173

DTC P1815 MANUAL MODE SWITCH ..................174

Description ................... ...... ....... ...... ......................174

CONSULT-II Reference Value ..............................174

On Board Diagnosis Logic ....................................174

Possible Cause .....................................................174

DTC Confirmation Procedure ...............................174

Wiring Diagram — AT — MMSW .........................175

Diagnostic Procedure ...........................................176

Component Inspection ..........................................177

DTC P1841 ATF PRESSURE SWITCH 1 ...............178

Description ................... ...... ....... ...... ......................178

CONSULT-II Reference Value ..............................178

On Board Diagnosis Logic ....................................178

Possible Cause .....................................................178

DTC Confirmation Procedure ...............................178

Diagnostic Procedure ...........................................179

DTC P1843 ATF PRESSURE SWITCH 3 ...............180

Description ................... ...... ....... ...... ......................180

CONSULT-II Reference Value ..............................180

On Board Diagnosis Logic ....................................180

Possible Cause .....................................................180

DTC Confirmation Procedure ...............................180

Diagnostic Procedure ...........................................181

DTC P1845 ATF PRESSURE SWITCH 5 ...............182

Description ................... ...... ....... ...... ......................182

CONSULT-II Reference Value ..............................182

On Board Diagnosis Logic ....................................182

Possible Cause .....................................................182

DTC Confirmation Procedure ...............................182

Diagnostic Procedure ...........................................183

DTC P1846 ATF PRESSURE SWITCH 6 ...............184

Description ................... ...... ....... ...... ......................184

CONSULT-II Reference Value ..............................184

On Board Diagnosis Logic ....................................184

Possible Cause .....................................................184

DTC Confirmation Procedure ...............................184

Diagnostic Procedure ...........................................185

MAIN POWER SUPPLY AND GROUND CIRCUIT .186

Wiring Diagram — AT — MAIN ............................186

Diagnostic Procedure ...........................................187

CLOSED THROTTLE POSITION AND WIDE OPEN

THROTTLE POSITION CIRCUIT .......................... ..190

CONSULT-II Reference Value ..............................190

Diagnostic Procedure ...........................................190

BRAKE SIGNAL CIRCUIT ................ ....... ...... .........191

CONSULT-II Reference Value ..............................191

Diagnostic Procedure ...........................................191

A/T INDICATOR CIRCUIT ..................................... ..192

Description ................... ...... ....... ...... ......................192

CONSULT-II Reference Value ..............................192

Diagnostic Procedure ...........................................192

TROUBLE DIAGNOSIS FOR SYMPTOMS .......... ..193

Wiring Diagram — AT — NONDTC ......................193

A/T CHECK Indicator Lamp Does Not Come On .195 Engine Cannot Be Started in “P” or “N” Position ..196

In “P” Position, Vehicle Moves When Pushed ......196

In “N” Position, Vehicle Moves ..............................197

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Large Shock (“N” to “D” Position) .........................198

Vehicle Does Not Creep Backward in “R” Position .201 Vehicle Does Not Creep Forward in “D” Position ..204 Vehicle Cannot Be Started from D A/T Does Not Shift: D A/T Does Not Shift: D A/T Does Not Shift: D A/T Does Not Shift: D

1 → D2 ........................... .....209

2 → D3 ........................... .....211

3 → D4 ........................... .....213

4 → D5 ........................... .....216

1 ......................206

A/T Does Not Perform Lock-Up ............................218

A/T Does Not Hold Lock-Up Condition .................220

Lock-Up Is Not Released ......................................222

Engine Speed Does Not Return to Idle ................222

Cannot Be Changed to Manual Mode ..................224

A/T Does Not Shift: 5th Gear → 4th Gear ............224

A/T Does Not Shift: 4th Gear → 3rd Gear ............226

A/T Does Not Shift: 3rd Gear → 2nd Ge ar ...........228

A/T Does Not Shift: 2nd Gear → 1st Gear ............230

Vehicle Does Not Decelerate by Engine Brake ....232

SHIFT CONTROL SYSTEM ....................................234

Control Device Removal and Installation ..............234

Control Rod Removal and Installation ..................237

Adjustment of A/T Position ...................................238

Checking of A/T Position ......................................239

A/T SHIFT LOCK SYSTEM ................................ .....240

Description ................ .......................... ..................240

Shift Lock System Electrical Parts Location .........240

Wiring Diagram — AT — SHIFT ...........................241

A/T Device Inspection Table .................................242

Diagnostic Procedure ...........................................242

KEY INTERLOCK CABLE ......................................245

Components .........................................................245

Removal and Installation ......................................246

ON-VEHICLE SERVICE ..........................................248

Control Valve with TCM and A/T Fluid Temperature

Sensor 2 ...............................................................248

Parking Components (2WD Models Only) ............260

Rear Oil Seal .........................................................268

Revolution Sensor (2WD Models Only) ................269

AIR BREATHER HOSE ...........................................274

Removal and Installation .......................................274

TRANSMISSION ASSEMBLY .................................275

Removal and Installation .......................................275

OVERHAUL ................................. ............................280

Components ....................... .................... ...............280

Oil Channel ...........................................................288

Locations of Adjusting Shims, Needle Bearings,

Thrust Washers and Snap Rings ..........................290

DISASSEMBLY .......................................................292

Disassembly ....................... ....... ............. ............. ..292

REPAIR FOR COMPONENT PARTS ......................310

Oil Pump ...............................................................310

Front Sun Gear, 3rd One-Way Clutch ...................313

Front Carrier, Input Clutch, Rear Internal Gear .....315

Mid Sun Gear, Rear Sun Gear, High and Low

Reverse Clutch Hub ..............................................320

High and Low Reverse Clutch ..............................325

Direct Clutch .........................................................327

ASSEMBLY .............................................................329

Assembly (1) .........................................................329

Adjustment ............................................................342

Assembly (2) .........................................................345

SERVICE DATA AND SPECIFICATIONS (SDS) ....352

General Specifications ..........................................352

Vehicle Speed at Which Gear Shifting Occurs ......352

Vehicle Speed at Which Lock-Up Occurs/Releases .353

Stall Speed ............................................................353

Line Pressure ........................................................353

A/T Fluid Temperature Sensor ..............................353

Turbine Revolution Sensor ....................................353

Vehicle Speed Sensor A/T (Revolution Sensor) ...353

Reverse Brake ......................................................354

Total End Play .......................................................354

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Page 18

INDEX FOR DTC

INDEX FOR DTC PFP:00024

Alphabetical Index ACS005W7

NOTE: If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, firs t perfor m the tro uble di agn osis for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT-110

Items

(CONSULT-II screen terms)

CONSULT-II or GST (*1) CONSULT-II only “A/T” A/T 1ST E/BRAKING — P1731 AT-152 ATF PRES SW 1/CIRC — P1841 AT-178 ATF PRES SW 3/CIRC — P1843 AT-180 ATF PRES SW 5/CIRC — P1845 AT-182 ATF PRES SW 6/CIRC — P1846 AT-184 A/T INTERLOCK P1730 P1730 AT-149 A/T TCC S/V FNCTN P0744 P0744 AT- 131 ATF TEMP SEN/CIRC P0710 P1710 AT-140 CAN COMM CIRCUIT U1000 U1000 AT-110 D/C SOLENOID/CIRC P1762 P176 2 AT-162 D/C SOLENOID FNCTN P1764 P1764 AT-164 ENGINE SPEED SIG P0725 P0725 AT-127 FR/B SOLENOID/CIRC P1757 P1757 AT-158 FR/B SOLENOID FNCT P1759 P1759 AT-160 HLR/C SOL/CIRC P1767 P176 7 AT-166 HLR/C SOL FNCTN P1769 P176 9 AT-168 I/C SOLENOID/CIRC P1752 P1752 AT-154 I/C SOLENOID FNCTN P1754 P1754 AT-156 L/PRESS SOL/CIRC P0745 P0745 AT-133 LC/B SOLENOID/CIRC P1772 P1772 AT-170 LC/B SOLENOID FNCT P1774 P1774 AT-172 MANU MODE SW/CIRC — P1815 AT-174 PNP SW/CIRC P0705 P0705 AT-118 STARTER RELAY/CIRC — P0615 AT-113 TCC SOLENOID/CIRC P0740 P0740 AT-129 TCM P0700 P0700 AT-117 TCM·RAM — P1702 AT-135 TCM·ROM — P1703 AT-136 TP SEN/CIRC A/T P1705 P1705 AT-137 TURBINE REV S/CIRC P1716 P1716 AT-145 VEH SPD SE/CIR·MTR — P1721 AT-147 VEH SPD SEN/CIR AT P0720 P0720 AT-122

*1: These numbers are prescribed by SAE J2012.

DTC

Reference pageOBD-II Except OBD-II

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Page 19

INDEX FOR DTC

DTC No. Index ACS005W8

NOTE: If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the troub le diag nosis for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT-110

DTC

(CONSULT-II screen terms)

CONSULT-II or GST (*1) CONSULT-II only “A/T”

— P0615 STARTER RELAY/CIRC AT-113 P0700 P0700 TCM AT-117 P0705 P0705 PNP SW/CIRC AT-118 P0710 P1710 ATF TEMP SEN/CIRC AT-140 P0720 P0720 VEH SPD SEN/CIR AT AT-122 P0725 P0725 ENGINE SPEED SIG AT-127 P0740 P0740 TCC SOLENOID/C IR C AT-129 P0744 P0744 A/T TCC S/V FNCTN AT-131 P0745 P0745 L/PRESS SOL/CIRC AT-133

— P1702 TCM·RAM AT-135

— P1703 TCM·ROM AT-136 P1705 P1705 TP SEN/CIRC A/T AT-137 P1716 P1716 TURBINE REV S/CIRC AT-145

— P1721 VEH SPD SE/CIR·MTR AT-147 P1730 P1730 A/T INTERLOCK AT-149

— P1731 A/T 1ST E/BRAKING AT-152 P1752 P1752 I/C SOLENOID/CIRC AT-154 P1754 P1754 I/C SOLENOID FNCTN AT-156 P1757 P1757 FR/B SOLENO ID/CIRC AT-158 P1759 P1759 FR/B SOLENOID FNCT AT-160 P1762 P1762 D/C SOLENOID/CIRC AT-162 P1764 P1764 D/C SOLENOID FNCTN AT-164 P1767 P1767 HLR/C SOL/CIRC AT-166 P1769 P1769 HLR/C SOL FNCTN AT-168 P1772 P1 772 LC/B SOLENOID/C IRC AT-170 P1774 P1774 LC/ B SOLEN O ID FNCT AT-172

— P1815 MANU MODE SW/CIRC AT-174

— P1841 ATF PRES SW 1/CIRC AT-178

— P1843 ATF PRES SW 3/CIRC AT-180

— P1845 ATF PRES SW 5/CIRC AT-182

— P1846 ATF PRES SW 6/CIRC AT-184 U1000 U1000 CAN COMM CIRCUIT AT-110

*1: These numbers are prescribed by SAE J2012.

Items

Reference pageOBD-II Except OBD-II

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Page 20

PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

ACS005W9

The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, us ed along with a front seat belt, helps to redu ce th e risk or se verit y of i njury to the driv er and front passenge r for ce rtain types of collision. This sys tem includes seat belt switch inputs and dual s tage front air bag modules. T he SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS and SB section of this Service Manual.

WARNING:

● To avoid ren dering the SRS ino perative, whi ch could inc rease the ris k of personal injury or death

in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.

● Improper maintenance, including incorrect rem oval and installation of the SRS, can lead to per-

sonal injury ca use d by unintentional activ atio n of the system. For re mo val of Spiral Cable and Air Bag Module, see the SRS section.

● Do not use electrical test equipm ent on a ny circuit re lated to the SRS un less in structed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

Precautions for On Board Diagnostic (OBD) System of A/T and Engine ACS005WA

The ECM has an on boa rd diagnos tic system. It wil l light up the m alfunction indicator la mp (MIL) to warn th e driver of a malfunction causing emission deterioration.

CAUTION:

● Be sure to turn the ignition switch OF F and disc onnect the ba ttery cable from the nega tive termi-

nal before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will cause the MIL to light up.

● Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will

cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease, dirt, bent terminals, etc.)

● Be sure to route and secure the harnesses properly after work. Interference of the harness with a

bracket, etc. may cause the MIL to light up due to a short circuit.

● Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube

may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.

● Be sure to erase the u nnecessar y malfunc tion i nformation (repairs complete d) from th e TCM and

ECM before returning the vehicle to the custom er.

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Page 21

PRECAUTIONS

Precautions A CS005WB

● Before connecting or disconnecting A/T assembly harnes s

connector, turn ignition switch OFF and disconnect negative battery cable. Because battery voltage is applied to TCM even if ignition switch is turned OFF.

SEF289H

● After performing each TROUBLE DIAGNOSIS, perform

“DTC Confirmation Procedure”. If the repair is completed the DTC should n ot be displayed in the “DTC Confirmation Procedure”.

SEF217U

● Always use the specified brand of ATF. Refer to MA-11, "Fluids and Lubricants" .

● Use lint-free paper not cloth rags during work.

● After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.

● Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to

prevent the internal parts from becoming contaminated by dirt or other foreign matter.

● Disassembly should be done in a clean work area.

● Us e l int - fre e p a per f or wi pi n g parts clea n. Co mmo n sho p rag s ca n le av e fi be rs tha t co uld i n te rf er e w ith th e

operation of the transm is sion.

● Place disassemb led parts in order for easier and proper assembly.

● All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or

reassembly.

● Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.

● It is very important to perform functional tests whenever they are indicated.

● The va l ve body co ntains prec is io n p a r t s a nd req ui res ex tr e me car e wh en parts are r em oved an d s er v iced .

Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs and small parts from becoming scattered or lost.

● Properly installed valves, sleeves, plugs, etc. will slide along bore s in va lv e bo dy unde r thei r ow n weig ht.

● Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings

and seals, or hold bearings and washers in place during assembly. Do not use grease.

● Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

● Cl ea n o r re plac e A /T flu id coo le r if exc es si ve fo re i gn mater i al is foun d in oi l pan or cloggi ng stra i ne r. Refer

to AT-9, "

● After overhaul, refill the transmission with new ATF.

● When the drain plug is re m ov ed , on ly s om e of th e fluid is drained . O ld A/ T f luid will remain in to rqu e con-

A/T FLUID COOLER SERVICE" .

verter and A/T fluid coolin g sy st em . Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to AT-12, "

Changing A/T Fluid" , AT-12, "Checking A/T Fluid" .

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AT-8

Page 22

PRECAUTIONS

Service Notice or Precautions ACS005WC

A/T FLUID COOLER SERVICE

If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced, inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using cleaning solven t and co mpress ed air a fter repair. For A/T fluid cooler cl eani ng proc edu re, refer to AT -14, "

Fluid Cooler Cleaning" . For radiator replacement, refer to CO-13, "RADIATOR" , CO-17, "RADIATOR (ALUMINUM TYPE)" .

A/T

OBD-II SELF-DIAGNOSIS

● A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through

the blinking pattern of the A/T CHECK indicator lamp or the malfunction indicator lamp (MIL). Refer to the table on AT-9 5 , " nostic result.

● The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-

ories.

Always perform the procedure on AT-39, " unnecessary blinking of the MIL.

For details of OBD-II, refer to EC-47, "

● Certain systems and components, espec ially those related to OBD, may use the new style s lide-

locking type harness connector. For description and how to disconnect, refer to PG-69, "

NESS CONNECTOR" .

SELF-DIAGNOSTIC RESULT MODE" for the indicator used to display each self-diag-

HOW TO ERASE DTC" to complete the repair and avoid

ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

HAR-

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AT-9

Page 23

PREPARATION

PREPARATION PFP:00002 Special Service Tools ACS005WE

The actual shapes of Kent-Moore tools may differ from those of spe ci al se rvice tools illustrated here.

Tool num ber (Kent-Moore No.) Tool nam e

Description

ST2505S001 (J-34301-C) Oil pressure gauge set

1. ST25051001 (—) Oil pressure gauge

2. ST25052000 (—) Hose

3. ST25053000 (—) Joint pi pe

4. ST25054000 (—) Adapter

5. ST25055000 (—) Adapter

KV31103600 (J-45674) Joint pipe adapter (With ST25054000)

ST33400001 (J-26082) Drift a: 60 mm (2.36 in) dia. b: 47 mm (1.85 in) dia.

Measuring line pressure

SCIA3695J

Measuring line pressure

ZZA1227D

● Installing rear oil seal (2WD models)

● Installing oil pump housing oil seal

NT086

KV31102400

Installing reverse brake return spring retainer (J-34285 and J-34285-87) Clutch spring compressor a: 320 mm (12.60 in) b: 174 mm (6.85 in)

NT423

ST25850000

Remove oil pump assembly (J-25721-A) Sliding hammer a: 179 mm (7.05 in) b: 70 mm (2.76 in) c: 40 mm (1.57 in) d: M12X1.75P

NT422

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AT-10

Page 24

PREPARATION

Commercial Service Tools ACS005WF

Tool name Description Power tool Loosening bolts and nuts

PBIC0190E

Drift a: 22 mm (0.87 in) dia.

NT083

Drift a: 64 mm (2.52 in) dia.

Installing manual shaft oil seals

Installing rear oil seal (AWD models)

SCIA5338E

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AT-11

Page 25

A/T FLUID

A/T FLUID PFP:KLE40 Changing A/T Fluid ACS005WG

1. Warm up ATF.

2. Stop engine.

3. Loosen the level gauge bolt.

4. Drain ATF from drain plug and refill with new ATF. Always refill same volume with drained ATF.

● To replace the ATF, pour in new ATF at the A/T fluid charging

pipe with the engine idling and at the same time drain the old ATF from the radiator cooler hose retu rn side.

● When the colo r of the ATF coming out is about the same as

the color of th e new ATF, the repl acement is complete. Th e amount of new ATF to use should be 30 to 50% increase of the stipulated amount.

ATF: Genuine NISSAN Matic J ATF Fluid capacity: 10.3 (10-7/8 US qt, 9-1/8 lmp qt)

CAUTION:

● Use only Genuine NISSAN Matic J ATF. Do not mix with other ATF.

● Using ATF other than Genuine NISSAN Matic J ATF will cause deterioration in driveability and

automatic transmissio n durability, and may damage the automatic transmission, which is no t covered by the warranty.

● When filling ATF, take care not to scatter heat generating parts such as exhaust.

● Do not reuse drain plug gasket.

SCIA4738E

Drain plug:

: 34 N·m (3.5 kg-m, 25 ft-lb)

5. Run engine at idle speed for 5 minutes.

6. Check A/T fluid level and condi ti on. Re fer t o AT-12, "

Checking A/T Fluid" . If A T F is st ill dirt y, repeat step 2.

through 5.

7. Install the removed A/T fluid level gauge in the A/T fluid charging pipe.

8. Tighten the level gauge bolt.

Level gauge bolt:

: 5.1 N·m (0.52 kg-m, 45 in-lb)

Checking A/T Fluid ACS005WH

1. Warm up engine.

2. Check for A/T fluid leakage.

3. Loosen the level gauge bolt.

4. Before driving, A/T f luid level can be checked at A/T fluid temperatures of 30 to 50°C (86 to 122°F) using “COLD” range on A/ T fluid level gauge as follows.

a. Park vehicle on level surface and set parking brake. b. Start engine and move sele ctor lever through each gear posi-

tion. Leave selector lever in “P” position.

c. Check A/T fluid level with engine idling. d. Remove A/T fluid level gauge and wipe clean with lint-free

paper.

CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not a cloth one.

e. Reinsert A/T fluid level gauge into A/T fluid charging pipe as far as it will go .

SCIA7120E

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AT-12

Page 26

A/T FLUID

CAUTION:

To check A/T fluid level, ins ert the A/T fluid level gauge until the cap contacts the end of the A/T fluid charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions.

f. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add ATF to the A/T fluid

charging pipe.

CAUTION:

Do not overfill.

5. Drive vehicle f or approximat ely 5 minutes in ur ban areas.

6. Make the A/T fluid temperature approximately 65°C (149°F).

NOTE: A/T fluid level will be greatly affected by tem perature as shown in figure. Therefore , be certain to perform operation while checking data with CONSULT-II.

a. Connect CONSULT-II to data link connector. Refer to AT-94, "

CONSULT-II SETTING PROCEDURE" .

b. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II. c. Read out the value of “ATF TEMP 1”.

7. Recheck A/T fluid level at A/T fluid temperatures of approxi-

mately 65°C (149°F) using “HOT” range on A/T fluid level gauge.

CAUTION:

● When wiping away the A/T fluid level gauge, alw ays use

lint-free paper, not a cloth one.

● To check A/T fluid level, insert the A/T fluid level gauge

until the cap contacts the end of the A/T fluid charging pipe, with the A/T fluid level gauge reversed from the normal attachment conditions as shown.

8. Check ATF condition.

● If A TF is very dark or smells burned, check operation of A/T. Flush cooling system after repair of A/T.

● If ATF contains frictional m aterial (clutches, bands, etc.), replace radiator and flush coole r line using

cleaning solvent and comp res se d ai r after repair of A/T. Refer to CO-13, "

RADIATOR" and AT-14, "A/T

Fluid Cooler Cleaning" .

SLIA0016E

SCIA1684E

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AT-13

Page 27

A/T FLUID

9. Install the removed A/T fluid level gauge in the A/T fluid charging pipe.

10. Tighten the level gauge bolt.

Level gauge bolt:

: 5.1 N·m (0.52 kg-m, 45 in-lb)

SCIA4738E

A/T Fluid Cooler Cleaning ACS005WI

Whenever an automatic transmission is replaced, the A/T fluid cooler mounted in the radiator must be inspected and cleaned. Metal debris and f ric tion mate rial, i f pr ese nt, c an be com e trap ped in the A /T f luid cool er. This debris c an c ontaminate the newly servi ced A/T or, in severe cases, can blo ck or restrict the flow of A/T fluid. In either case, malfunction of the newly serv iced A/T may result. Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler through the cooler outlet in order to flush out any built up debris.

A/T FLUID COOLER CLEANING PROCEDURE

1. Position an oil pan under the automati c transmission's inlet and outlet cooler hoses.

2. Identify the inlet and outlet fluid cooler hoses.

3. Disconnect the fluid co oler i nlet and outl et ru bber h oses fro m the steel cooler tubes or bypass valve.

NOTE:

Replace the cooler hoses if rubber material from the hose remains on the tube fitting.

4. Allow any A/T fl uid that remains i n t he cooler hoses t o d r ai n into the oil pan.

5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (N i ssa n P/N 999MP-AM006 ) i nto the co oler outlet hose.

CAUTION:

● Wear safety glasses and rubber gloves when spraying

the Transmission Cooler Cleaner.

● Spray cooler cleaner only with adequate ventilation.

● Avoid contact with eyes and skin.

● Do not breath vapors or spray mist.

6. Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler inlet hose for 5 seconds.

SCIA3830E

SCIA3831E

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AT-14

Page 28

A/T FLUID

7. Insert the tip of an air gun into the end of the cooler outlet hose.

8. Wrap a shop rag around th e air gun tip and of the cooler outle t hose.

9. Blow compressed air regulated to 5 to 9 kg/cm through the cooler outlet hose for 10 seconds to forc e out any remaining fluid.

10. Repeat steps 5 through 9 three additional times.

11. Pos ition an oil pan under the banjo bolts that conne ct the fluid cooler steel lines to the transmission.

12. Remove the banjo bolts.

13. Flush each steel line from the cooler side back toward the transmission by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.

14. Blow compressed air regulated to 5 to 9 kg/cm side back toward the transmission for 10 seconds to force out any remaining fluid.

15. Ensure all debris is removed from the steel cooler lines.

16. Ens ure all debri s is removed from t he banjo bolts and fittings .

17. Perform AT-15, "

A/T FLUID COOLER DIAGNOSIS PROCEDURE" .

A/T FLUID COOLER DIAGNOSIS PROCEDURE

NOTE:

Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.

1. Position an oi l pan under the automatic tr ansmission's inlet and outlet cooler hose s.

2. Clean the ext erior and tip of the cooler inlet hose.

3. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 99 9MP-AM00 6) into the coole r outlet hose.

CAUTION:

● Wear safety glasses and rubber gloves when spraying

the Transmission Cooler Cleaner.

● Spray cooler cleaner only with ad equ ate venti lation.

● Avoid contact with eyes and skin.

● Do not breat h vapors or spray mist.

4. Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler inlet hose for 5 seconds.

5. Tie a common white, bask et-type coffee filter to the end of the cooler inlet hose.

(70 to 130 psi)

(70 to 130 psi) through each ste el line from the cool er

SCIA3832E

SCIA3831E

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A/T FLUID

6. Insert the tip of an air gun into the end of the cooler outlet hose.

7. Wrap a shop rag around the ai r gun tip and end of co oler outlet hose.

8. Blow compressed air regulated to 5 to 9 kg/cm through the cooler outlet hose to force any remaining A/T fluid into the coffee filter.

9. Remove the coffee filter from the end of the cooler inlet hose.

10. Perform AT-16, "

A/T FLUID COOLER INSPECTION PROCE-

DURE" .

A/T FLUID COOLER INSPECTION PROCEDURE

1. Inspect the coffee filter for debris.

a. If small metal deb ris less than 1 m m (0.040 in) in siz e or metal

powder is found in the coffee filter, this is normal. If normal debris is found, the A/T f luid co oler/radi ator can be re-u sed an d the procedu re is ended.

(70 to 130 psi)

SCIA3834E

b. If one or more pieces of debris are found that are over 1 mm

(0.040 in) size and /or peeled clutch facing material is found in the coffee filter, the fluid coo ler is no t service able. The A/T fluid cooler/radiator must be replaced and the inspection procedure is ended.Refer to CO-13, "

RADIATOR" , CO-17, "RADIATOR

(ALUMINUM TYPE)" .

A/T FLUID COOLER FINAL INSPECTION

After performing all procedures, ensure that all remaining oil is cleaned from all components.

SCIA2967E

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A/T CONTROL SYSTEM

A/T CONTROL SYSTEM PFP:31036

Cross-Sectional View (2WD Models) ACS005WJ

1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear

4. Direct clutch 5. High and low reverse clutch 6. Reverse brake

7. Drum support 8. Forward brake 9. Low coast brake

10. Input shaft 11. Torque converter 12. Oil pump

13. Front brake 14. 3rd one-way clutch 15. Input clutch

16. 1st one-way clutch 17. Control valve with TCM 18. Forwar d one-way clutch

19. Rear extension 20. Output shaft

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A/T CONTROL SYSTEM

Cross-Sectional View (AWD Models) ACS005WK

1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear

4. Direct clutch 5. High and low rev ers e clu tch 6. Reverse brake

7. Drum support 8. Forward brake 9. Low coast brake

10. Input shaft 11. Torque converter 12. Oil pump

13. Front brake 14 . 3rd one-way clutch 15. Input clutch

16. 1st one-way clutch 17. Control valve with TCM 18. Forward one- w ay cl ut ch

19. Adapter case 20. Output shaft

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A/T CONTROL SYSTEM

Shift Mechanism ACS005WL

The automatic transmissio n uses compact tri ple planetary ge ar systems to improve power-t ransmission e fficiency, simplify construction and reduce weight. It also employs an optimum shift control and super wide gear ratios. They improve starting performance and acceleration during medium and high-speed operation.

CONSTRUCTION

1. Front brake 2. Input clutch 3. Direct clutch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. Input shaf t

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mi d sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

FUNCTION OF CLUTCH AND BRAKE

Name of the Part Abbreviation Function

Front brake (1) FR/B Fastens the front sun gear (11).

Input clutch (2) I/C

Direct clutch (3) D/C Connects the rear carrier (15) and the rear sun gear (16). High and low reverse clutch (4) HLR/C Connects the mid sun gear (17) and the rear sun gear (16). Reverse brake (5) R/B Fastens the rear carrier (15). Forward brake (6) Fwd/B Fastens the mid sun gear (17). Low coast brake (7) LC/B Fastens the mid sun gear (17).

1st one-way clutch (8) 1st OWC

Forward one-way clutch (9) Fwd OWC

3rd one-way clutch (10) 3rd OWC

Connects the input shaft (12), the front internal gear (14) and the mi d inter nal gear (13).

Allows the rear sun gear (16) to turn freely forward relative to the mid sun gear (17) but fastens it for reverse rotation.

Allows the mid sun gear (17) to turn freely in the forward direction but fastens it for reverse rotation.

Allows the front sun gear (11) to turn freely in the forward direction but fastens it for reverse ro tati o n.

PCIA0002J

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CLUTCH AND BAND CHART

A/T CONTROL SYSTEM

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A/T CONTROL SYSTEM

POWER TRANSMISSION “N” Position

Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not transmitted to the output shaft.

“P” Position

● The same as for the “N” position, both the forward brake and the reverse brake are released, so torque

from the input shaft drive is not transmitted to the output shaft.

● The parking pawl linked with the selec tor lever meshes with the park in g ge ar a nd fas te ns the ou tp ut s ha ft

mechanically.

1. Front brake 2. Input clutch 3. Dir ect clu tch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. I nput shaft

13. Mid interna l gea r 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Fron t carrier

19. Mid carrier 20. Rear internal gear 21. Ou tpu t sh aft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D1 ” Position

● The forward bra ke and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● The 1st one-way clutch regulates reverse rotation of the rear sun gear.

● The 3rd one-way clutch regulates reverse rotation of the fr on t sun gear.

● During deceleration, the mid sun gear tu rns forward , so the forwar d one-way clu tch idles an d the engine

brake is not activated.

1. Front brake 2. Input clutch 3 . Direct clutch

4. High and low reverse clutch 5. Re ver se bra ke 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way cl ut ch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mi d sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“M1” Position

● The front brake fast ens the front sun gear.

● The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● High an d low reverse clutch connects the rear sun gear and the mid sun gear.

● The low coast brake fastens the mid sun gear.

● During deceleration, the low coast brake regulates forward ro tation of the mid sun gear and the eng ine

brake functions.

1. Front brake 2. Input clutch 3. Dir ect clu tch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. I nput shaft

13. Mid interna l gea r 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Fron t carrier

19. Mid carrier 20. Rear internal gear 21. Ou tpu t sh aft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D2 ” Position

● The forward bra ke and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● The 3rd one-way clutch regulates reverse rotation of the fr on t sun gear.

● The direct clutc h is coupled, and the rear carrier and rear sun gear are connected.

● During deceleration, the mid sun gear turns forward, so the forward one-way clutch idles and engine

brake is not activated.

1. Front brake 2. Input clutch 3 . Direct clutch

4. High and low reverse clutch 5. Re ver se bra ke 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way cl ut ch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mi d sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“M2” Position

● The front brake fast ens the front sun gear.

● The forward brake and the forward one-way clutch regulate reverse rotation of the mid sun gear.

● The direct clutch is coupled, and the rear carrier and rear sun gear are connected.

● The low coast brake fastens the mid sun gear.

● During deceleration, the low coast brake regulates forward ro tation of the mid sun gear and the eng ine

brake functions.

1. Front brake 2. Input clutch 3. Dir ect clu tch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. I nput shaft

13. Mid interna l gea r 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Fron t carrier

19. Mid carrier 20. Rear internal gear 21. Ou tpu t sh aft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D3 ” and “M3” Positions

● The front brake fastens the front sun gear.

● The direct clutc h is coupled, and the rear carrier and rear sun gear are connected.

● The high and low reverse clutch is coupled, and the mid sun gear and rear sun gear are connected.

1. Front brake 2. Input clutch 3 . Direct clutch

4. High and low reverse clutch 5. Re ver se bra ke 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way cl ut ch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mi d sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“D4 ” and “M4” Positions

● The direct clutch is coupled, and the rear carrier and rear sun gear are connected.

● The high and low reverse clutch is cou pled, and the mid sun gear and rear sun gear are connected.

● The input clutch is coupled, and the front internal gear and mid internal gear are connected.

● The drive power is conveyed to the front internal gear, mid internal gear, and rear carrier and the t hree

planetary gears rotate forward as one unit.

1. Front brake 2. Input clutch 3. Dir ect clu tch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. I nput shaft

13. Mid interna l gea r 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Fron t carrier

19. Mid carrier 20. Rear internal gear 21. Ou tpu t sh aft

22. Parking gear 23. Parking pawl

SCIA1517E

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A/T CONTROL SYSTEM

“D5 ” and “M5” Positions

● The front brake fastens the front sun gear.

● The input clutch is coupled, and the front internal gear and mid internal gear are connected.

● The high and low reverse clutch is coupled, and the mid sun gear and rear sun gear are connected.

1. Front brake 2. Input clutch 3 . Direct clutch

4. High and low reverse clutch 5. Re ver se bra ke 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way cl ut ch 11. Front sun gear 12. Input shaft

13. Mid internal gear 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mi d sun gear 18. Front carrier

19. Mid carrier 20. Rear internal gear 21. Output shaft

22. Parking gear 23. Parking pawl

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A/T CONTROL SYSTEM

“R” Position

● The front brake fast ens the front sun gear.

● The high and low reverse clutch is cou pled, and the mid sun gear and rear sun gear are connected.

● The reverse brake fastens the rear c arrier.

1. Front brake 2. Input clutch 3. Dir ect clu tch

4. High and low reverse clutch 5. Reverse brake 6. Forward brake

7. Low coast brake 8. 1st one-way clutch 9. Forward one-way clutch

10. 3rd one-way clutch 11. Front sun gear 12. I nput shaft

13. Mid interna l gea r 14. Front internal gear 15. Rear carrier

16. Rear sun gear 17. Mid sun gear 18. Fron t carrier

19. Mid carrier 20. Rear internal gear 21. Ou tpu t sh aft

22. Parking gear 23. Parking pawl

SCIA1519E

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A/T CONTROL SYSTEM

TCM Function ACS005WM

The function of the TCM is to:

● Receive input si gnals sent from various switche s and sensors.

● Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

● Send required output signals to the respective solenoids.

CONTROL SYSTEM OUTLINE

The automatic transmission senses vehicle operating conditions through various sensors or signals. It always controls the optimum shift position and reduces shifting and lock-up shocks.

SENSORS (or SIGNALS)

PNP switch Accelerator pedal position signal Closed throttle position signal Wide open throttle position signal Engine speed signal A/T fluid temperature sensor Revolution sensor Vehicle speed signal Manual mode switch signal Stop lamp switch signal Turbine revolution sensor A TF pressure switch

Shift control Line pressure control Lock-up control Engine brake control Timing control Fail-safe control Self-diagnosis CONSULT-II communication line Duet-EA control CAN system

TCM

ACTUATORS

Input clutch solenoid valve Direct clutch solenoid valve Front brake solenoid valve High and low reverse clutch solenoid valve Low coast brake solenoid valve T orque converter clutch solenoid valve Line pressure solenoid valve A/T CHECK indicator lamp Back-up lamp relay Star te r re la y

CONTROL SYSTEM DIAGRAM

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A/T CONTROL SYSTEM

CAN Communication ACS005WN

SYSTEM DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability . Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during opera tion (not independent). In CA N communication, cont rol units are connected with 2 communicatio n lines ( CAN H lin e, CAN L li ne) all owi ng a high ra te of in forma tion tr ans missi on wit h less wir ing. Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-21,

"CAN Communication Unit" .

Input/Output Signal of TC M ACS005WO

Line

Control item

Accelerator pedal position signal Vehicle speed sensor A/T

(revolution sensor) Vehicle speed sensor MTR Closed throttle position signal Wide open throttle position signal

Turbine revolution sensor 1 X X X X X

Input

Output

*1: Spare for vehicle speed sensor·A/T (revo lu tion sen sor ) *2: Spare for accelerator pedal position signal *3: If these input and output signals are different, the TCM triggers th e fail -s afe function. *4: Used as a condition for starting self-diagnostic s; if self-diagnostics are not started, it is judged that there is some kind of err or. *5: Input by CAN communications *6: Output by CAN communications

Turbine revolution sensor 2 (for 4th speed only)

Engine speed signals Stop lamp switch signal

A/T fluid temperature sensors 1, 2XXXX XX

Operation signal

ASCD

Direct clutch solenoid (ATF pressure switch 5)

Input clutch solenoid (ATF pressure switch 3)

High and low reverse clutch solenoid (ATF pressure switch 6)

Front brake solenoid (ATF pressure switch 1)

Low coast brake solenoid (ATF pressure switch 2)

Line pressure solenoid XXXXXXX TCC solenoid X X X

Self-diagnostics table Starter relay XX

Overdrive cancel signal

(*1) (*5)

(*5)

(*6)

(*5)

pressure

control

XXXXXXX

Vehicle

speed

control

X (*2) X X X X (*4)

X XXXX

XXX X (*4)

XXX

XX XX

XX XXX

Shift

control

Lock-up

control

Engine

brake

control

Fail-safe

function

(*3)

XX (*4)

Self-diag-

nostics

function

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A/T CONTROL SYSTEM

Line Pressure Control ACS005WP

● When an input torque signal equivalent to the engine drive force is sent from the ECM to the TCM, the

TCM controls the line press ure solenoid.

● This line pressure solenoid controls the press ure regulator va lve as the signa l pressure and ad justs the

pressure of the o perating oil dischar ged from the oil pump to the line pressur e most appropriate to t he driving state.

PCIA0007E

LINE PRESSURE CONTROL IS BASED ON THE TCM LINE PRESSURE CHARACTERISTIC PATTERN

● The TCM has stored in memory a n umb er of patterns for t he o ptimu m li ne p ressu re ch arac terist ic fo r the

driving state.

● In order to obtain the most appropriate l ine pressure chara cteristic to meet th e current driving state, t he

TCM controls the line pressure solenoid cur rent value and thus controls the line pressure.

Normal Control

Each clutch is adjusted to the necessary pressure to match the engine drive force.

Back-up Control (Engine Brake)

When the select operation is performed during dr iving and the t ransmission is shifted down, the line pressure is set according to the vehicle speed.

PCIA0008E

PCIA0009E

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A/T CONTROL SYSTEM

During Shift Change

The necessary a nd adequate line pressure for sh ift change is set. For this reason, line pressure pattern setting corresponds to input torque and gearshift selection. Also, line pressure characteristic is set according to engine speed, during engin e brake operati on.

PCIA0010E

At Low Fluid Temperature

When the A/T fluid temperature drops below the prescribed temperature, in order to speed up the action of each friction element, the line pressure is set higher than the no rma l lin e pre ss ure char ac te ris tic .

PCIA0011E

Shift Control ACS005WQ

The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change characteristic is attained.

PCIA0012E

NORMAL SHIFT CONTROL

The clutch is contro lle d w it h th e op tim um tim in g a nd oil pres su re by th e en gi ne spe ed , en gine torque information, etc.

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A/T CONTROL SYSTEM

Shift Change System Diagram

PCIA0013E

● *1: Full phase real-time feedback control monitors movement of gear ratio at gear change, and controls oil

pressure at r eal-time to achieve the best ge ar ratio.

BLIPPING CONTROL

This system makes transmission clutch engage readily by controlling (synchronizing) engine revolution according to the (calculation of) engine revolution after shifting down.

● “BLIPPING CONTROL” functions.

– When downshifting by accelerator pedal depression at “D” position. – When downshifting under the manual mode.

● TCM selects “BLIPPING CONTROL” or “NORMAL SHIFT CONTROL” according to the gear position, the

select lever position, the engine torque and the speed when accelerating by pedal depression.

● Revolution control demand signal is transmitte d from TC M to ECM un de r “BLIPPI N G CONT R OL”.

● TC M synchronizes engine revolution according to the revolution control demand signal.

Shift Change System Diagram

SCIA6483E

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A/T CONTROL SYSTEM

Lock-Up Control ACS005WR

The torque convert er clutch piston in the torque conve rter is engaged to eliminate torque c onverter slip to increase power tr ansmission efficiency. The torque converter clutch control valve operation is controlled by the t orque converter clutch solenoid valve, which is controlled by a signal from TCM , and the torque co nverter clutch control valve eng ages or releases the torque converter clutch piston.

Lock-up Operation Condition Table

Selector lever “D” position “M” position Gear position 545432 Lock-up × – ×××× Slip lock-up ××––––

TORQUE CONVERTER CLUTCH CONTROL VALVE CONTROL Lock-up Control System Diagram

PCIA0014E

Lock-up Released

● In the l oc k- u p rel e as ed st at e, the t orqu e c on ve rte r cl utch co nt rol va lv e is set in to the unl o cke d s t at e b y t he

torque converter clutch solenoid and the lock-up apply pressure is drained. In this way, the torque converter clutch piston is not coupled.

Lock-up Applied

● In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the

torque converter clutch solenoid and lock -up apply pressure is genera ted. In this way, the torque converter clutch piston is pressed and coupled.

SMOOTH LOCK-UP CONTROL

When shifting f rom the lock -up releas ed st at e to the lock- up ap plied st ate, the cur rent outp ut to the tor que converter clutch sole noid is controlled with the TCM. In this w ay, when shifting to the lock-up applied s tate, the torque converter clutch is temporarily set to the half-clutched state to reduce the shock.

Half-clutched State

● The current output from the TCM to the torque converter clutch solenoid is varied to gradually increase

the torque con v erter clutch solenoid pressure. In this way, the lock-up apply pressure gradually rises and while the torque convert er clutch pisto n is put into half-clutc hed status, the to rque conv erter clutch piston ope rating pres sure is incr eased and the coupling is completed smoothly.

Slip Lock-up Control

● In the slip region, the to rque conv erter cl utch s oleno id c urrent is con troll ed w ith t he TCM to p ut it into the

half-clutched state. This absorbs the engine torque fluctuation and lock-up operates from low speed. This raises the fuel efficiency for 4th and 5th gears at both low speed and when the accel erator has a low degree of opening.

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A/T CONTROL SYSTEM

Engine Brake Control ACS005WS

● The forward one-way clutch transmits the driv e force from th e engine to the rear whe els. But the rev erse

drive from the rear wheels is not transmitted to the engine because the one-way clutch is idling. Therefore, the low coast brake solenoi d is operated to prevent the forward one-w ay clutch from idling and the engine brake is operated in the same manner as conventi onally.

SCIA1520E

● The operation of the low coast brake solenoid switches the low coast brake switching valve and controls

the coupling and releasing of the low coast brake. The low coast brake reducing valve controls the low coast brake coupling force.

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A/T CONTROL SYSTEM

Control Valve ACS005WT

FUNCTION OF CONTROL VALVE

Name Function

Tor que converter regulator valve Pressure regulator valve

Pressure regul a tor plug Pressure regulator sleev e

Front brake control valve

Accumulator control valve

Pilot valve A

Pilot valve B

Low coast brake switching valve During engi ne bra ki ng, suppli es th e line pr ess ure to the low coast brake reducing valve. Low coast brake reducing valve

N-R accumulator Produces the stabilizing pressure for when N-R is sel ect ed. Direct clutch piston switching valve Operates in 4th gear and switches the direct clutch coupl in g capaci ty.

High and low reverse clutch control valve

Input clutch control valve

Direct clutch control valve

TCC control valve TCC control plug TCC control sleeve

Tor que converter lubrication valve

Cool bypass valve Allows excess oil to bypass cooler circuit without being fed into it. Line pressure relief valve Discharges excess oil from line pressure circuit. N-D accumulator Produces the stabilizing pressure for when N-D is sel ect ed.

Manual valve

In order to prevent the pressure supplied to the torque converter from being excessive, the line pressure is adjusted to the optimum pressur e (tor que converter operating pressure).

Adjusts the oil discharged from the oil pump to the optimum pre ssure (line pressure) for the driving state.

When the front brake is coupled, adjusts the line pressure to the optimum pressure (front brake pressure) and supplies it to the front brake. (In 1st, 2nd, 3rd, and 5th gears, adjusts the clutch pressure. )

Adjusts the pressure (accumulator control pressure) acting on the accumulator piston and low coast reducing valve to the pressure appr opr ia te to the driving state.

Adjusts the line pressure and produces the constant pressure (pilot pressure) required for line pressure control, shift change control, and lock-up control.

Adjusts the line pressure and produces the constant pressure (pilot pressure) required for shift change control.

When the low coast brake is coupled, adjusts the line pre ssur e to the opti m um pressure (low coast brake pressure) and supplies it to the low coast brak e.

When the high and low reverse clutch is coupled, adjusts the line pressure to the optimum pressure (high and low reverse clutch pressure) and supplies it to the high and low reverse clutch. (In 1st, 3rd, 4th and 5th gears, adjusts the clutch pres sur e.)

When the input clutch is coupled, adjusts the line pressure to the optimum pressure (input clutch pressure) and supplies it to the input clutch. (In 4th and 5th gears, adjusts the clutch pressure.)

When the direct clutch is coupled, adjusts the line pressure to the optimum pressure (direct clutch pressure) and supplies it to the direct clutch. (In 2nd, 3rd , and 4th gea rs, adjusts the clutch pressure.)

Switches the lock-up to operating or released. Also, by per form ing th e loc k-u p oper at ion transiently, lock-up smoothly.

Operates during lock-up to switch the torque converter, cooling, and lubrication system oil passage.

Sends line pressure to each circuit according to the sel ec t pos itio n. The circui ts to which the line pressure is not sent drain.

FUNCTION OF A T F PRESS URE SWITCH

Name Function

ATF pressure switch 1 (FR/B)

ATF pressure switch 2 (LC/B)

ATF pressure switch 3 (I/C)

ATF pressure switch 5 (D/C)

ATF pressure switch 6 (HLR/C)

Revision: 2005 July 2005 G35 Sedan

Detects any malfunction in the front brake hydra ul ic pressure. When it detects any malfunction, it puts the system into fail-safe mode.

Detects any malfunction in the low coast brake hy dra ulic pr essure. When it detects any malfunction, it puts the system into fail-safe mode.

Detects any malfunction in the input clutch hydr auli c pre ssure. When it detects any malfunction, it puts the system into fail-safe mode.

Detects any malfunction in the direct clutch hydraulic pressure. When it detects any malfunction, it puts the system into fail-safe mode.

Detects any malfunction in the high and low rever se cl ut ch hyd raulic pressure. When it detects any malfunction, it puts the system into fail-safe mo de.

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

ON BOARD DIAGNOSTIC (OBD) SYSTEM PFP:00028 Introduction ACS005WU

The A/T system has two self-diagnostic systems. The first is the emission-related on board diagnostic system (OBD-II) performed by the TCM in combination with the ECM. The malfunction is indicated by the MIL (malfunction indicator lamp) and is stored as a DTC in the ECM memory but not the TCM memory. The second is the TCM original self-diagn os is indic ated by the A/T CHECK indic at or la mp . The malfunction is stored in the TCM memory. The detected items are overlapped with OBD-II self-diagnostic items. For detail, refer to AT-95, "

SELF-DIAGNOSTIC RESULT MODE" .

OBD-II Function for A/T System ACS005WV

The ECM provides emission-related on board diagnostic (OBD-II) functions for the A/T system. One function is to receive a signal from the TCM used with OBD-related parts of the A/T system. The signal is sent to the ECM when a mal function occurs in the corre sponding OBD-related part. The other function is to ind icate a diagnostic result by means of the MIL (malfunction indicator lamp) on the instrument panel. Sensors, switches and solenoid valves are used as sensing eleme nts. The MIL automatically illuminates in One or Two Trip Detection Logic when a malfunction is sensed in relation to A/T system parts.

One or Two Trip Detection Logic of OBD-II ACS005WW

ONE TRIP DETECTION LOGIC

If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored in the ECM memory as a DTC. The TCM is not provided wit h such a memory function.

TWO TRIP DETECTION LOGIC

When a malfuncti on is sensed during the fi rst test drive, it is stored in the ECM memory as a 1st trip DT C (diagnostic trouble code) or 1st trip freeze frame data. At this point, the MIL will not illuminate. — 1st trip If the same malf unction as that experien ced during the first test drive is sense d during the second te st drive, the MIL will illuminate. — 2nd trip The “trip” in the “One or Two Trip Detection Logic” means a driving mode in which self-diagnosis is performed during vehicle operation.

OBD-II Diagnostic Trouble Code (DTC) ACS005WX

HOW TO READ DTC AND 1ST TRIP DTC

DTC and 1st trip DTC can be read by the following methods. ( with CONSULT-II or GST) CONSULT-II or GST (Generic Scan Tool) Examples: P0705, P0720 etc.

These DTC are prescribed by SAE J2012. (CONSULT-II also di splays the mal functioning component or system.)

● 1st trip DTC No. is the same as DTC No.

● Output of the diagnostic trouble code indicates that the indic ated circuit has a malfu nction. How-

ever, in case of the Mode II and GST , they do not indicate whether the malfunction is still occurring or occurred in the past and returned to normal. CONSULT-II can identify them as shown below, therefore, CONSULT-II (if available) is recommended.

A sample of CONSULT-II display for DTC and 1st trip DTC is shown on the next page. DTC or 1st trip D TC of a malf unction is displaye d in SELF-DIAGNOSTIC RESULTS mode for “ENGINE” with CONSULT-II. Time data indicates how many times the vehicl e w a s dri ve n after the last detection of a DTC.

BCIA0030E

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

If the DTC is being detected currently, the time data will be “0”.

If a 1st trip DTC is stored in the ECM, the time data will be “1t”.

SAT015K

SAT016K

Freeze Frame Data and 1st Trip Freeze Frame Data

The ECM has a me mory function, whic h stores the driving c ondition such as fuel s ystem status, calcul ated load value, engin e coolant temperature, short te rm fuel trim, long term fuel trim, engin e speed and vehicle speed at the moment the ECM detects a malfunction. Data which are stored in the ECM memory, along with the 1st trip DTC, are called 1st trip freeze frame data, and the data, s tored to gether with t he DTC data, a re call ed freez e fram e data an d disp layed on CO NSULT-II or GST. The 1st trip freeze frame data can only be displayed on the CONSULT-II screen, not on the GST. For detail, refer to EC-137, "

CONSULT-II Function (ENGINE)" .

Only one set of freeze frame data (either 1st trip freeze frame data of freeze frame data) can be stored in the ECM. 1st trip freeze frame data is stored in the ECM memory along with the 1st trip DTC. There is no priority for 1st trip freeze fr ame data and it is update d each time a different 1st trip DTC is det ected. However, once freeze frame data (2nd trip detection/MIL on) is stored in the ECM memory, 1st trip freeze frame data is no longer stored. R eme mber, only one set of free ze fra me da ta can be stored in the ECM . The ECM has th e following pri orities to update the data.

Priority Items

1 2 Except the above items (Includes A/T related items)

3 1st trip freeze f rame dat a

Freeze frame data

Misfire — DTC: P0300 - P0306 Fuel Injection System Function — DTC: P0171, P0172, P0174, P0175

Both 1st trip freeze frame data and freeze fr ame data (along w ith the DTC) are cleared when the ECM memory is erased.

HOW TO ERASE DTC

The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as described followi ng .

● If the battery cable is disconnected, the diagnostic trouble code will be lost within 24 hours.

● When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode

selector on t he ECM.

The following emi ssion-related diagnostic inf ormation is cleared from the ECM m emory when erasing DTC related to OBD-II. For details, refer to EC-48, "

● Diagnostic trouble codes (DTC)

● 1st trip diagnostic trouble codes (1st trip DTC)

● Freeze frame data

Emission-Relate d Diag no s tic Info rma tion" .

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

● 1st trip freeze frame data

● System readines s test (SRT) cod es

● Test values

HOW TO ERASE DTC (WITH CONSULT-II)

● If a DTC is displayed for both ECM and TCM, it is necessary to be erased for both ECM and TCM.

1. If the ignition switc h stays “ON ” after repair work, be sure to tur n ignit ion sw itc h “OFF” onc e. Wait at least 10 seconds and t hen turn it “ON” (engine stopped) again.

2. Turn CONSULT-II “ON” and touch “A/T”.

3. Touch “SELF-DIAG RESULTS”.

4. Touch “ERASE”. (The DTC in the TCM will be erased.) Then touch “BACK” twice.

5. Touch “ENGINE” .

6. Touch “SELF-DIAG RESULTS”.

7. Touch “ERASE”. (The DTC in the E CM will be erased.)

SCIA5671E

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

HOW TO ERASE DTC (WITH GST)

1. If the ignition switch stays “ON” after repair work, be su re to turn ign ition switch “OF F” once. Wait at least 10 seconds and then turn it “ON” (engine stopped) again.

2. Perform AT- 1 05 , " can be skipped when performing the diagnosis only to erase the DTC.)

3. Select Mode 4 with Generic Scan Tool (GST). For d etails, refer to EC-150, "

Function" .

HOW TO ERASE DTC (NO TOOLS)

The A/T CHECK indicator lamp is located on th e instrument panel.

1. If the ignition switch stays “ON” after repair work, be su re to turn ign ition switch “OF F” once. Wait at least 10 seconds and then turn it “ON” (engine stopped) again.

2. Perform AT- 1 05 , " can be skipped when performing the diagnosis only to erase the DTC.)

3. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No tools)”. Refer to EC-61, "

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step

Generic Scan Tool (GST)

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" . (The engine warm-up step

How to Erase DTC" .

Malfunction Indicator Lamp (MIL) ACS005WY

DESCRIPTION

The MIL is located on the combination meters.

1. The MIL will li ght up w hen th e ign iti on swi tch i s tu rned “ON ” wit hout the engine running. This is a bulb check.

● If the MIL does not light up, refer to DI-28, "WARNING LAMPS" ,

or see EC-720, "

2. When the engine is started, the MIL should go off.

● If the MIL remains on, the on board diagnostic system has

detected an engine system malfunction.

MIL AND DA TA LINK CONNECTOR" .

SEF217U

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TROUBLE DIAGNOSIS

TROUBLE DIAGNOSIS PFP:00004 DTC Inspection Priority Chart ACS005WZ

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority chart.

NOTE: If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the troub le diag nosis for “DTC U1000 CAN COMMUNICATION LINE”. Refer to AT-110

Priority Detected items (DTC)

1 U1000 CAN communication line 2 Except above

Fail-safe ACS005X0

The TCM has an ele ct ric al fa il -s af e mo de . This mod e ma ke s it poss ib l e t o op era t e ev en if th er e is a an er ro r i n a main electro nic control input/output signal circuit. In fail-safe mode, even if the selector lever is “D” or “M” mode, the transmission is fixed in 2nd, 4th or 5th (depending on the br eakdown position ), so the customer should feel “slipping” or “poor acce leration”. When fail-safe mode is tri ggered, when the ignition switch is sw itched “ON”, the A/T CHECK indi cator lamp fl ashes for about 8 seconds. Refer to AT-105, " Even when the electronic circuits are normal, under special conditions (for example, when slamming on the brake with the wheels spinni ng drastically and stopping the tire rotation), the transmission can go into fail-safe mode. If this h appens, swi tch “OFF” the i gnition s witch for 10 seconds, then switc h it “ON” ag ain to retu rn to the normal shift pattern. Also, the A/T CHECK indicator lamp flashes for about 8 seconds once, then is cleared. Theref ore, th e cus tome r's ve hicl e has returne d to no rmal, so han dle a ccordin g to th e AT-45, "

FLOW" .

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" .

WORK

FAIL- SAFE FUNCTION

If any malfunction occurs in a sensor or solenoid, this function controls the A/T to mark driving possible.

Vehicle Speed Sensor A/T (Revolution Sensor)

● Signals are input from two systems - from vehicle speed sensor A/T (revolution sensor) installed on the

transmission and from combination meter so normal driving is possible even if there is a malfunction in one of the systems. And if vehicle speed sensor A/T (revolution sensor) has unusual cases, 5th gear and manual mode ar e prohibited.

Accelerator Pedal Position Sensor

● If there i s a malf uncti on in on e of th e system s, th e accel erat or open ing an gle is contr oll ed by ECM accor d-

ing to a pre-determi ned accelerator ang le to make driving po ssible. And if the re are malfunction s in tow systems, the engine speed is fixed by ECM to a pre-determined engine speed to make driving possible.

Throttle Position Sensor

● If there i s a malf uncti on in on e of th e system s, th e accel erat or open ing an gle is contr oll ed by ECM accor d-

ing to a pre-determi ned accelerator ang le to make driving po ssible. And if the re are malfunction s in tow systems, the acce lerat or open ing a ngle i s con trolle d by th e idle signa l sent from th e ECM whic h is ba sed on input indicating either idle condition or off-idle condition (pre-determined accelerator opening) in order to make driving possible.

PNP Switch

● In t he un like ly eve nt that a malf unc tion si gnal ente rs the T CM, th e posi tion in dic ator is swi tche d “OFF” , the

starter relay is switched “OFF” (starter starting is disabled), the back-up lamp relay switched “OFF” (backup lamp is OFF) and the position is fixed to the “D” range to make driving possible.

Starter Relay

● The starter relay is switched “OFF”. (Sta rter starting is disabled.)

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A/T Interlock

● If there is an A/T interlock judgment malfunction, the transmission is fixed in 2nd gear to make driving pos-

sible.

NOTE: When the vehicle is drive n fixe d in 2nd ge ar, a turbine revolution sen sor malfu nc t ion is dis pla ye d, but this is not a turbine revolution sensor malfunction.

● When the coupling pattern below is detected, the fail-safe action corresponding to the pattern is per-

formed.

A/T INTERLOCK COUPLING PATTERN TABLE

●: NG X: OK

Clutch pressure output pattern after fail-safe func-

tion

I/C HLR/C D/C FR/B LC/B L/U

OFF OFF ON OFF OFF OFF

Gear position

A/T interlock coupling pattern

ATF pressure switch output

SW3

(I/C)

3rd – X X – ●

4th – X X – ●

5th X X – X ●

SW6

(HLR/

SW5

(D/C)

SW1

(FR/B)

SW2

(LC/B)

Fail-safe

function

Held in

2nd gear

Held in

2nd gear

Held in

2nd gear

A/T 1st Engine Braking

● When there is an A/T first gear engine brake judgment malfunction, the low coast brake solenoid is

switched “OFF” to avoid the engine brake operation.

Line Pressure Solenoid

● The solenoid is switched “OFF” and the line pressure is set to the maximum hydraulic pressure to make

driving possib le .

Torque Converter Clutch Sole noi d

● The solenoid is switched “OFF” to release the lo ck-up.

Low Coast Brake Solenoid

● When a malfunction (electrical or functional) occurs, in order to make driving possible, if the solenoid is

“ON”, the transmiss ion is held in 2nd gear; if the solenoid is “OFF”, the transm ission is held in 4th gea r. (engine brake is not applied in 1st and 2nd gear.)

Input Clutch Solenoid

● If a malfunction (electrical or functional) occurs with the solenoi d either “ON” or “OFF”, the transmission is

held in 4th gear to make drivin g po ss ib le .

Direct Clutch Solenoid

● If a malfunction (electrical or functional) occurs with the solenoi d either “ON” or “OFF”, the transmission is

held in 4th gear to make drivin g po ss ib le .

Front Brake Solenoid

● If a malfunction (electrica l or functi onal) oc curs with th e solen oid “ON”, in orde r to make driving p ossible,

the A/T is held in 5th gear; i f the solenoid is OFF, 4th gear.

High and Low Reverse Clutch Solenoid

● If a malfunction (electrical or functional) occurs with the solenoi d either “ON” or “OFF”, the transmission is

held in 4th gear to make drivin g po ss ib le .

Turbine Revolution Sensor 1 or 2

● The cont ro l is th e same as if the re we re no tu rbi ne revo lut ion se nsors , 5th gear an d manu al mod e are pr o-

hibited.

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How to Perform Trouble Diagnosis for Quick and Accurate Repair ACS005X1

INTRODUCTION

The TCM receives a sign al fro m the vehi cle s peed sens or, accelerator pedal posi tion s ens or (thro ttle po siti on sensor) or PNP switch and provides shift control or lock-up con trol via A/T solenoid valves. The TCM also communicates with the ECM by means of a signal sent from sensing elements used with the OBD-related parts of the A/T system for malfu nction-diagnostic purpo ses. The TCM is capable of diagno si ng malfunctioning parts while the ECM ca n s t o re malfunctions in its memory. Input and output signals must always be correct and stable in the operation of the A/T system. The A/T system must be in good operating condition and be free of valve seizure, solenoid valve malfunction, etc.

SAT631IB

It is much more difficult t o diag nos e a error that oc curs intermit tent ly rather than continuously. Most intermittent errors are caused by poor electric connections or improper wiring. In this case, careful checking of suspected circuits may help prevent the replacement of good parts. A visual chec k on ly m ay not fi nd th e cau se o f the e rror s. A roa d tes t with CONSULT-II (or GST) or a circuit tester connected should be performed. Follow the AT-45, "

WORK FLOW" .

Before undertaking a ctual checks, take a fe w minutes to talk with a customer who approaches with a driveability complaint. The customer can supply good information about such errors, especially intermittent ones. Find out what symptoms are present and under what condit ions they occur. A “Diagnostic Workshe et” as shown on the example (R efer to AT-46

) should be used. St art your di agno sis by l ooki ng fo r “con vent ional ” erro rs firs t. T his wi ll help troubleshoot driveability errors on an electronically controlled engine vehicle. Also check related Service bulletins .

SAT632I

SEF234G

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WORK FLOW

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each cus tomer feels differently ab out a malfunction. It is important to fully understand th e symptoms or conditions for a customer complaint. Make good use of the two sheets provided, AT-46, "

sheet Chart" , to perform the best troubles hooting possi ble.

Work Flow Chart

Information from Customer" and AT-46, "Diagnostic Work-

SCIA6878E

*1. AT-46 *2. AT-46 *3. AT-42 *4. AT-51 *5. AT-51, AT-53 *6. AT-55 *7. AT-92 *8. AT-38 *9. AT-42 *10. AT-110 *11. AT-184 *12. AT-193 *13. AT-66 *14. AT-39 *15. AT-110 *16. AT-184 *17. EC-48

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TROUBLE DIAGNOSIS

DIAGNOSTIC WORKSHEET Information from Customer

KEY POINTS

● WHAT..... Vehicle and A/T model

● WHEN..... Date, Frequencies

● WHERE..... Road conditions

● HOW..... Operating conditions, Symptoms

Customer name MR/MS Model & Y ear VIN Trans. Model Engine Mileage Malfunction Date Manuf. Date In Service Date Frequency ❏ Continuous ❏ Intermittent ( times a day) Symptoms ❏ Vehicle does not move. (❏ Any position ❏ Particular position)

❏ No up-shift (❏ 1st → 2nd ❏ 2nd → 3rd ❏ 3rd → 4th ❏ 4th → 5th ) ❏ No down-shift (❏ 5th → 4th ❏ 4th → 3rd ❏ 3rd → 2nd ❏ 2nd → 1st) ❏ Lock-up malfunction ❏ Shift poin t too high or too low. ❏ Shift shock or slip (❏ N → D ❏ N → R ❏ Lock-up ❏ Any drive position) ❏ Noise or vib ration ❏ No kick down ❏ No pattern select ❏ Others

()

A/T CHECK indicator lamp Blinks for about 8 seconds.

❏ Continuously lit ❏ Not lit

Malfunction indicator lamp (MIL) ❏ Continuously lit ❏ Not lit

Diagnostic Worksheet Chart

1 ❏ Read the item on cautions concerning fail-safe and under stand the cust om er 's com pla in t. AT-42

❏ ATF inspection AT-51

❏ Stall test and line pressure test AT-51

❏ Leak (Repair leak location.) ❏ State ❏ Amount

❏ Stall test

❏ Torque converter one-way clutch ❏ Front brake ❏ High and low reverse clutch ❏ Low coast brake ❏ Forward brake ❏ Reverse brake ❏ Forward one-way clutch

❏ Line pressure inspection - Suspected part:

❏ 1st one-way clutch ❏ 3rd one-way clutch ❏ Engine ❏ Line pressure low ❏ Except for input clutch and direct

clutch, clutches and brakes OK

, AT-

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TROUBLE DIAGNOSIS

❏ Perform all road tests and enter checks in required inspection i tems . AT-55

Check Before Engine Is Started AT-56

❏ AT-195, "A/T CHECK Indicator Lam p D oes Not Co me On" . ❏ Perform self-diagnostics. Enter checks for detected items. AT-95

4-1.

Check at Idle AT-56 ❏ AT-196, "Engine Cannot Be Started in “P” or “N” Position" .

4-2.

4-3.

❏ AT-196, " ❏ AT-197, " ❏ AT-198, " ❏ AT-201, " ❏ AT-204, "

Cruise Test AT-60 Part 1

❏ AT-206, " ❏ AT-209, " ❏ AT-211, " ❏ AT-213, " ❏ AT-216, " ❏ AT-218, " ❏ AT-220, " ❏ AT-222, " ❏ AT-222, "

❏ AT-147 , " ❏ AT-149 , " ❏ AT-152 , " ❏ AT-154 , " ❏ AT-156 , " ❏ AT-158 , " ❏ AT-160 , " ❏ AT-162 , " ❏ AT-164 , " ❏ AT-166 , " ❏ AT-168 , "

FUNCTION" .

❏ AT-170 , " ❏ AT-172 , " ❏ AT-174 , " ❏ AT-178 , " ❏ AT-180 , " ❏ AT-182 , " ❏ AT-184 , "

In “P” Position, Vehicle Moves When Pushed" . In “N” Position, Vehicle Moves" . Large Shock (“N” to “D” Position)" . Vehicle Does Not Creep Backward in “R” Position" . Vehicle Does Not Creep Forward in “D” Position" .

Vehicle Cannot Be Started from D1" . A/T Does Not Shift: D1 → D2" . A/T Does Not Shift: D2 → D3" . A/T Does Not Shift: D3 → D4" . A/T Does Not Shift: D4 → D5" . A/T Does Not Perform Lock-Up" . A/T Does Not Hold Lock-Up Condition" . Lock-Up Is Not Released" . Engine Speed Does Not Return to Idle" .

DTC P0615 START SIGNAL CIRCUIT" . DTC P0700 TCM" . DTC P0705 PARK/NEUTRAL POSITION SWITCH" . DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)" . DTC P0725 ENGINE SPEED SIGNAL" . DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" . DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" . DTC P0745 LINE PRESSURE SOLENOID VALVE" . DTC P1702 TRANSMISSION CONTROL MODULE (RAM)" . DTC P1703 TRANSMISSION CONTROL MODULE (ROM)" . DTC P1705 THROTTLE POSITION SENSOR" . DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" . DTC P1716 TURBINE REVOLUTION SENSOR" . DTC P1721 VEHICLE SPEED SENSOR MTR" . DTC P1730 A/T INTERLOCK" . DTC P1731 A/T 1ST ENGINE BRAKING" . DTC P1752 INPUT CLUTCH SOLENOID VALVE" . DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION" . DTC P1757 FRONT BRAKE SOLENOID VALVE" . DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION" . DTC P1762 DIRECT CLUTCH SOLENOID VAL VE" . DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION" . DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE" . DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE

DTC P1772 LOW COAST BRAKE SOLENOID VALVE" . DTC P1774 LOW COAST BRAKE SOLENOID VAL VE FUNCTION" . DTC P1815 MANUAL MODE SWITCH" . DTC P1841 ATF PRESSURE SWITCH 1" . DTC P1843 ATF PRESSURE SWITCH 3" . DTC P1845 ATF PRESSURE SWITCH 5" . DTC P1846 ATF PRESSURE SWITCH 6" .

, AT-105

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TROUBLE DIAGNOSIS

Part 2 AT-63

❏ AT-206 , "Vehicle Cannot Be Started from D1" . ❏ AT-209 , " ❏ AT-211, " ❏ AT-213 , "

Part 3 AT-64

❏ AT-224 , "Cannot Be Changed to Manual Mode" . ❏ AT-224 , " ❏ AT-226 , " ❏ AT-228 , " ❏ AT-230 , " ❏ AT-232 , " ❏ Perform self-diagnostics. Enter checks f or detec ted item s. AT-95

44-3

5 ❏ Inspect each system for items found to be NG in the self- di agno st ic s and repai r or replace the malfunctioning parts. 6 ❏ Perform all road tests and enter the checks again for the required items. AT-55

❏ For any remaining NG items, perform the “d ia gnos tics pr ocedure” and repair or replace the malfunctioning

parts. See the chart for diagnostics by symptoms. (This chart also contains other symptoms and inspection procedures.)

8 ❏ Erase the results of the self-diagnostics from the TCM.

A/T Does Not Shift: D1 → D2" . A/T Does Not Shift: D2 → D3" . A/T Does Not Shift: D3 → D4" .

A/T Does Not Shift: 5th Gear → 4th Gear" . A/T Does Not Shift: 4th Gear → 3rd Gear" . A/T Does Not Shift: 3rd Gear → 2nd Gear" . A/T Does Not Shift: 2nd Gear → 1st Gear" . Vehicle Does Not Decelerate by Engine Brake" .

❏ AT-110, "DTC U1000 CAN COMMUNICATION LINE" . ❏ AT-113, " ❏ AT-117, " ❏ AT-118, " ❏ AT-122, " ❏ AT-127, " ❏ AT-129, " ❏ AT-131, " ❏ AT-133, " ❏ AT-135, " ❏ AT-136, " ❏ AT-137, " ❏ AT-140, " ❏ AT-145, " ❏ AT-147, " ❏ AT-149, " ❏ AT-152, " ❏ AT-154, " ❏ AT-156, " ❏ AT-158, " ❏ AT-160, " ❏ AT-162, " ❏ AT-164, " ❏ AT-166, " ❏ AT-168, "

FUNCTION" .

❏ AT-170, " ❏ AT-172, " ❏ AT-174, " ❏ AT-178, " ❏ AT-180, " ❏ AT-182, " ❏ AT-184, "

DTC P0615 START SIGNAL CIRCUIT" . DTC P0700 TCM" . DTC P0705 PARK/NEUTRAL POSITION SWITCH" . DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)" . DTC P0725 ENGINE SPEED SIGNAL" . DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" . DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" . DTC P0745 LINE PRESSURE SOLENOID VALVE" . DTC P1702 TRANSMISSION CONTROL MODULE (RAM)" . DTC P1703 TRANSMISSION CONTROL MODULE (ROM)" . DTC P1705 THROTTLE POSITION SENSOR" . DTC P1710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" . DTC P1716 TURBINE REVOLUTION SENSOR" . DTC P1721 VEHICLE SPEED SENSOR MTR" . DTC P1730 A/T INTERLOCK" . DTC P1731 A/T 1ST ENGINE BRAKING" . DTC P1752 INPUT CLUTCH SOLENOID VALVE" . DTC P1754 INPUT CLUTCH SOLENOID VALVE FUNCTION" . DTC P1757 FRONT BRAKE SOLENOID VAL VE" . DTC P1759 FRONT BRAKE SOLENOID VALVE FUNCTION" . DTC P1762 DIRECT CLUTCH SOLENOID VALVE" . DTC P1764 DIRECT CLUTCH SOLENOID VALVE FUNCTION" . DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE" . DTC P1769 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE

DTC P1772 LOW COAST BRAKE SOLENOID VALVE" . DTC P1774 LOW COAST BRAKE SOLENOID VALVE FUNCTION" . DTC P1815 MANUAL MODE SWITCH" . DTC P1841 ATF PRESSURE SWITCH 1" . DTC P1843 ATF PRESSURE SWITCH 3" . DTC P1845 ATF PRESSURE SWITCH 5" . DTC P1846 ATF PRESSURE SWITCH 6" .

, AT-105

AT-66

AT-39 109

, AT-

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TROUBLE DIAGNOSIS

A/T Electrical Parts Location ACS005X2

SCIA6213E

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TROUBLE DIAGNOSIS

Circuit Diagram ACS005X3

TCWM0390E

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TROUBLE DIAGNOSIS

Inspections before Trouble Diagnosis ACS005X5

A/T FLUID CHECK A/T Fluid Leakage and A/T Fluid Level Check

● Inspect for A/T fluid leakage and check the A/T fluid level. Refer to AT-12, "Checking A/T Fluid" .

A/T Fluid Con dition Check

Inspect the A/T fluid condition.

Fluid condition Conceivable Cause Required Operation

Replace the ATF and check the Varnished (viscous varnish state)

Milky white or cloudy Water in the fluid

Large amount of metal powder mixed in

STALL TEST Stall Test Procedure

1. Inspect the amount of engine oil. Replenish the engine oil if necessary.

2. Drive for about 10 minutes to warm up the vehicle so that the A/ T fluid temperature is 50 to 80°C (122 to 176°F). Inspect the amount of ATF. Replenish if necessary.

Clutch, brake scorched

Unusual wear of sliding parts within A/T

A/T main unit and the vehicle for malfunctions (wire harnesses, cooler pipes, etc.)

Replace the ATF and check for places where water is getting in.

Replace the ATF and check for improper operation of the A/T.

SAT638A

3. Securely engage the parking brake so that the tires do not turn.

4. Engine start, apply foot brake, and place selector lever in “D” position.

SAT647B

SCIA7463E

SCIA6229E

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TROUBLE DIAGNOSIS

5. While holding down the foot brake, gradually press down the accelerator pedal.

6. Quickly read o ff the stall speed, then qui ckly remove your foot from the accelerator pedal.

CAUTION:

Do not hold down the accelerator pedal for more than 5 seconds during this test.

Stall speed: 2,300 - 2,600 rp m

7. Move the selector lever to the “N” position.

8. Cool down the ATF.

CAUTION:

Run the engine at idle for at least 1 minute.

9. Repeat steps 5 through 8 with sele ct or lev er in “R” pos iti on .

SAT514G

Judgement of Stall Test

Selector lever position

“D”, “M” “R”

Stall speed

O: Stall speed within standard value position H: Stall speed higher than standard value L: Stall speed lower than standard value

SCIA6230E

Possible location of malfunction

● Forward brake

● Forward one-way clutch

● 1st one-way clutch

● 3rd one-way clutch

● Reverse brake

● Engine and torque converter one- wa y clutc h

● Line pressure low

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TROUBLE DIAGNOSIS

Stall test standard value position

Does not shift-up “D”, “M” position 1 → 2 Slipping in 2nd, 3rd, 4th gears Direct clutch slippage Does not shift-up “D”, “M” position 2 → 3 Slipping in 3rd, 4th, 5th gears High and low reverse clutch slippage Does not shift-up “D”, “M” position 3 → 4 Slipping in 4th, 5th gears Input clutch slippage Does not shift-up “D”, “M” position 4 → 5 Slipping in 5th gear Front brake slippage

LINE PRESSURE TEST Line Pressure Test Port

SCIA2187E

Line Pressure Test Procedure

1. Inspect the amount of engine oil and replenish if necessary.

2. Drive the car for about 10 minutes to warm it up so that the ATF reaches in range of 50 to 80°C (122 to 176°F), then inspect the amount of ATF and replenish if necessary.

NOTE: The A/T fluid temperature rises in range of 50 to 80°C (122 to 176°F) during 10 minutes of driving.

3. Remove the fro nt propeller shaft from veh icle (with AWD models). Refer to PR-14, "

tion" .

4. After warming up remove the oil pressure detection plug and install th e oil pressure gauge.

CAUTION:

When using the oil pressure gaug e, be sure to use the Oring attached to the oil pressure detection plug.

Removal and Installa-

SCIA5309E

5. Securely engage the parking brake so that the tires do not turn.

SCIA7463E

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TROUBLE DIAGNOSIS

6. Start the en gi n e, t hen me as ure th e l in e pr es su re at b ot h i dl e a nd the stall speed.

CAUTION:

● Keep the brake pedal pressed all the way down during

measurement.

● When measuring the line pressure at the stall speed,

refer to AT-51, "

7. After the measurements are complete, install the oil pressure detection plug and tighten to the specified torque below.

: 7.3 N·m (0.74 kg-m, 65 in-lb)

CAUTION:

● Do not reuse O-ring.

● Apply ATF to O-ring.

Line Pressure

Engine speed

At idle speed 425 - 465 (4.3 - 4.7, 62 - 67) 379 - 428 (3.9 - 4.4, 55 - 62) At stall speed 1,605 - 1,950 (16.4 - 19.9, 233 - 283) 1,310 - 1,500 (13.4 - 15.3, 190 - 218)

STALL TEST" .

Line pressure [kPa (kg/cm

“R” position “D” and “M” positions

, psi)]

SAT493G

Judgement of Line Pressure Test

Judgement Possible cause

Possible causes include malfunctions in the pressure supply system and low oil pump output. For example

● Oil pump wear

● Pressure regulator valve or plug sticking or sprin g fatigue

● Oil strainer Þ oil pump Þ pressure regulator valve passage oil leak

● Engine idle speed too low

Possible causes include an oil pressure leak i n a passage or de vic e relat ed t o the position after the pressure is distributed by the manual valve.

Possible causes include a sensor malfunction or malfunction in the line pressure adjustment function. For example

● Accelerator pedal position signal malfunction

● A/T fluid temperature sensor malfunc tion

● Line pressure solenoid malfu ncti on (sti cki ng in “OFF” state, filter clog, cut lin e)

● Pressure regulator valve or plug sticking

Idle speed

Low for all positions (“P”, “R”, “N”, “D”, “M”)

Only low for a specific position

High

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TROUBLE DIAGNOSIS

Judgement Possible cause

Possible causes include a sensor malfunction or malfunction in the pressure adjustment function. For example

Oil pressure does not rise higher than the oil pressure for idle.

Stall speed

The pressure rises, but does not enter the standard position.

Only low fo r a specific position

● Accelerator pedal position signal malfunction

● TCM breakdown

● Line pressure solenoid ma lfunc tion (s hor ting, sticking in “ON” state)

● Pressure regulator valve or plug st icki ng

● Pilot valve sticking or pilot filter clogged

Possible causes include malfunctions in the pressure supply system and malfu nct ion in the pressure adjustment function. For example

● Accelerator pedal position signal malfunction

● Line pressure solenoid ma lfunc tion (s ticking, filter clog)

● Pressure regulator valve or plug st icki ng

● Pilot valve sticking or pilot filter clogged

Possible causes include an oil pressure leak in a passage or devi ce re la te d to the posi tio n after the pressure is distributed by the manual valve.

ROAD TEST Description

● The road test inspects overall performance of the A/T and ana-

lyzes possible malfunction causes.

● The road test is performed in the following three stages.

1. Check before engine is st arted. Refer to AT-56

2. Check at idle. Refer to AT-56

3. Cruise test

● Inspect all the items from Part 1 to Part 3. Refer to AT-60 , AT-

63 , AT-64 .

● Before beginning the road test, check the test procedure and

inspection items.

● Test all inspectio n items until the symptom is unc overed. Diag-

nose NG items when all road tests are complete.

SAT786A

SAT496G

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TROUBLE DIAGNOSIS

Check before Engine Is Started ACS00989

1. CHECK A/T CHECK INDICATOR LAMP

1. Park vehicle on level surface.

2. Move selector lever to “P” position.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Turn ignition switch ON. (Do not start engine.)

Does A/T CHECK indicator lamp light up for about 2 seconds?

YES >> GO TO 2. NO >> Stop the road test and go to AT- 1 9 5 , "

cator Lamp Does Not Come On" .

A/T CHECK Indi-

SCIA6231E

2. CHECK A/T CHECK INDICATOR LAMP

Does A/T CHECK indicator lamp flash for about 8 seconds?

YES >> For TCM fail-safe mode, carry out self-diagnostics and

record all NG items on AT- 46, "

SHEET" . Refer to AT-95, "SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 5 , " Diagnostic Procedure without CONSULT-II" .

NO >> 1. Turn ignition switch OFF.

2. Carry out the self-diagnostics and record all NG items on AT-46, "

AT-95, " 105, "Diagnostic Procedure without CONSULT-II" .

3. Go to AT-56, "

DIAGNOSTIC WORKSHEET" . Refer to

SELF-DIAGNOSTIC RESULT MODE" , AT-

Check at Idle" .

DIAGNOSTIC WORK-

SCIA6373E

Check at Idle ACS0098A

1. CHECK STARTING THE ENGINE

1. Park vehicle on level surface.

2. Move selector lever to “P” or “N” position.

3. Turn ignition sw itch OFF.

4. Turn ignition switch START. Does the engine start?

YES >> GO TO 2. NO >> Stop the road test and go to AT-19 6, "

Started in “P” or “N” Position" .

Engine Cannot Be

SCIA6232E

2. CHECK STARTING THE ENGINE

1. Turn ignition switch ON. (Do not start engine.)

2. Move selector lever in “D”, “M” or “R” position.

3. Turn ignition switch START. Does the engine start in either position?

YES >> Stop the road test and go to AT-196, "Engine Cannot Be

Started in “P” or “N” Position" .

NO >> GO TO 3.

SCIA6233E

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TROUBLE DIAGNOSIS

3. CHECK “P” POSITION FUNCTIONS

1. Move selector lever to “P” position.

2. Turn ignition switch OFF.

3. Release the parking brake.

4. Push the vehicle forward or backward.

5. Engage the parking bra k e. When you push the vehicle with releasing the parking brake, does it

move?

YES >> Enter a check mark at “In “P” Position Vehicle Moves

When Pushed” on AT-46, "

SHEET" , then continue the road test.

NO >> GO TO 4.

DIAGNOSTIC WORK-

SCIA6234E

SAT796A

4. CHECK “N” POSITION FUNCTIONS

1. Start the engine.

2. Move selector lever to “N” position.

3. Release the parking brake. Does vehicle move forward or backward?

YES >> Enter a chec k mark at “In “N” Position Vehicle Moves”

on AT-46, " tinue the road test.

NO >> GO TO 5.

DIAGNOSTIC WORKSHEET" , then con-

SCIA6235E

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TROUBLE DIAGNOSIS

5. CHECK SHIFT SHOCK

1. Engage the brake.

2. Move selector lever to “D” position. When the tran smission is sh ifted from

sive shock?

YES >> Enter a check mark at “Large Shock (“N” to “D” Posi-

tion)” on AT-46, " continue the road test.

NO >> GO TO 6.

DIAGNOSTIC WORKSHEET" , then

“N” to “D”, is there an exces-

SAT797A

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TROUBLE DIAGNOSIS

6. CHECK “R” POSITION FUNCTIONS

1. Engage the brake.

2. Move selector lever to “R” position.

SAT797A

SCIA6236E

3. Release the brake for 4 to 5 seconds. Does the vehicle creep backward?

YES >> GO TO 7. NO >> Enter a check mark at “Vehicle Does Not Creep Back-

ward in “R” Position” on AT- 4 6 , "

DIAGNOSTIC WORK-

SHEET" , then continue the road test.

7. CHECK “D” POSITION FUNCTIONS

Inspect whether the vehicle creep forward when the transmission is put into the “D” position.

Does the vehicle creep forward in the

YES >> Go to AT-60, "Cruise Test - Part 1" , AT- 63, "Cruise Test

- Part 2" and AT-64, "Cruise Test - Part 3" .

NO >> Enter a check mark at “Vehicle Does Not Creep Forward

in “D” Position” on AT-46, "

SHEET" , then continue the road test. Go to AT-60, "Cruise Test - Part 1" , AT-63, "Cruise Test - Part 2" and AT-64, "

Cruise Test - Part 3" .

“D” positions?

DIAGNOSTIC WORK-

SAT799A

SCIA6229E

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AT-59

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TROUBLE DIAGNOSIS

Cruise Test - Part 1 ACS0098B

1. CHECK STARTING OUT FROM D1

1. Drive the vehicle for about 10 minute s to warm up th e e ng in e oi l and ATF. Appropriat e temperature for the ATF: 50 to 80°C (122 to 176°F)

2. Park the vehicle on a level surface.

3. Move selector lever to “P” position.

4. Start the engine.

SCIA6234E

5. Move selector lever to “D” position.

6. Press the accelerat or pedal about half way down to acce lerate the vehicle.

With CONSULT-II

Read the gear positions. Refer to AT -99, "

DATA MONITOR MODE" .

Starts from D1?

YES >> GO TO 2. NO >> Enter a ch eck ma rk at “Vehicle Cannot Be Started From

D1” on AT-46, "

DIAGNOSTIC WORKSHEET" , then

continue the road test.

2. CHECK SHIFT-UP D1 → D2

Press down the acc elerator pedal about ha lf way and inspect if the vehicle shifts up (D1 → D2) at the appropriate speed.

● Refer to AT-65, "Vehicle Spee d at Whi ch Gear Sh i ft ing Occur s" .

With CONSULT-II Read the gear position, throttle degree of opening, and vehicle speed. Refer to AT-99, "

Does the A/T shift-up D1

YES >> GO TO 3. NO >> Enter a check mark at “A/T Does Not Shift: D1 → D2” on

AT-46, "

the road test.

DATA MONITOR MODE" .

→ D2 at the correct speed?

DIAGNOSTIC WORKSHEET" , then continue

SCIA6229E

SAT495G

SAT954I

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TROUBLE DIAGNOSIS

3. CHECK SHIFT-UP D2 → D3

Press down the accele rator pedal about half way and inspect if the vehicle shifts up (D2 → D3) at the appropriate speed.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II Read the gear position, throttle degree of opening, and vehicle speed. Refer to AT-99, "

Does the A/T shift-up D2

DATA MONITOR MODE" .

→ D3 at the correct speed?

YES >> GO TO 4. NO >> Enter a check mark at “A/T Does Not Shift: D2 → D3” on

AT-46, "

DIAGNOSTIC WORKSHEET" , then continue

the road test.

4. CHECK SHIFT-UP D3 → D4

Press down the accele rator pedal about half way and inspect if the vehicle shifts up (D3 → D4) at the appropriate speed.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II Read the gear position, throttle degree of opening, and vehicle speed. Refer to AT-99, "

Does the A/T shift-up D3

YES >> GO TO 5. NO >> Enter a check mark at “A/T Does Not Shift: D3 → D4” on

AT-46, "

the road test.

DATA MONITOR MODE" .

→ D4 at the correct speed?

DIAGNOSTIC WORKSHEET" , then continue

SAT955I

SAT956I

5. CHECK SHIFT-UP D4 → D5

Press down the accele rator pedal about half way and inspect if the vehicle shifts up (D4 → D5) at the appropriate speed.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II Read the gear position, throttle degree of opening, and vehicle speed. Refer to AT-99, "

Does the A/T shift-up D4

DATA MONITOR MODE" .

→ D5 at the correct speed?

YES >> GO TO 6. NO >> Enter a check mark at “A/T Does Not Shift: D4 → D5” on

AT-46, "

DIAGNOSTIC WORKSHEET" , then continue

the road test.

6. CHECK LOCK-UP

When releasing accelerator pedal (closed throttle position signal: OFF) from D5, check lock-up from D5 to L/U.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT-92, "

Does it lock-up?

YES >> GO TO 7. NO >> Enter a chec k mark at “A/T Does Not Perform Lock-up”

CONSULT-II REFERENCE VALUE" .

on AT-46, "

DIAGNOSTIC WORKSHEET" , then con-

tinue the road test.

SCIA5750E

SCIA6324E

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TROUBLE DIAGNOSIS

7. CHECK LOCK-UP HOLD

Check hold lock-up.

With CONSULT-II Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT- 92 , "

ENCE VAL UE" .

Does it maintain lock-up status?

YES >> GO TO 8. NO >> Enter a check mark a t “A/T Do es Not Ho ld Loc k-up Con dition” on AT-46, "

SHEET" , then continue the road test .

8. CHECK LOCK-UP RELEASE

Check lock-up cancellation by depressing brake pedal lightly to decelerate.

With CONSULT-II Select “TCC SOLENOID” with the “MAIN SIGNAL” mode for “A/T”. Refer to AT-92, "

Does lock-up cancel?

YES >> GO TO 9. NO >> Enter a check mark at “Lock-up Is Not Released” on AT-

CONSULT-II REFERENCE VALUE" .

46, "DIAGNOSTIC WORKSHEET" , then continue the

road test.

CONSULT-II REFER-

DIAGNOSTIC WORK-

SCIA5752E

9. CHECK SHIFT-DOWN D5 → D4

Decelerate by pressing lightly on the brake pedal.

With CONSULT-II Read the gear position and engine speed.Refer to AT-99, "

MONITOR MODE" .

When the A/T shift-down D5 smoothly back to idle?

YES >> 1. Stop the vehicle.

2. Go to AT-63, "

NO >> Enter a check mark at “Engine Speed Does Not Return

to Idle” on AT- 4 6 , " continue the roa d test. Go to AT - 6 3 , "

2" .

→ D4, does the engine speed drop

Cruise Test - Part 2" .

DIAGNOSTIC WORKSHEET" , then

Cruise Test - Part

DATA

SCIA5753E

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AT-62

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TROUBLE DIAGNOSIS

Cruise Test - Part 2 ACS0098C

1. CHECK STARTING FROM D1

1. Move selector lever the “D” position.

SCIA6229E

2. Accelerate at half throttle. With CONSULT - II

Read the gear position. Refer to AT-99, " Does it start from D1?

YES >> GO TO 2. NO >> Enter a ch eck m ark at “Vehicle Cannot Be Started From

D1” on AT-46, "

DIAGNOSTIC WORKSHEET" , then

continue the road test.

DATA MONITOR MODE" .

SAT495G

2. CHECK SHIFT-UP D1 → D2

Press the accelerator pedal down all the way and inspect whether or not the transmission shifts up (D1 → D2) at the correct speed.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II

Read the gear p ositio n, throttle positio n and v ehicle speed. R efer to

AT-99, "

Does the A/T shift-up D1

DATA MONITOR MODE" .

→ D2 at the correct speed?

YES >> GO TO 3. NO >> Enter a check mark at “A/T Does Not Shift: D1 → D2” on

AT-46, "

DIAGNOSTIC WORKSHEET" , then continue

the road test.

3. CHECK SHIFT-UP D2 → D3

Press the accelerator pedal down all the way and inspect whether or not the transmission shifts up (D2 → D3) at the correct speed.

● Refer to AT-65, "Vehicle Speed at Which Gear Shifting Occurs" .

With CONSULT - II

Read the gear p ositio n, throttle positio n and v ehicle speed. R efer to

AT-99, "

Does the A/T shift-up D2

YES >> GO TO 4. NO >> Enter a check mark at “A/T Does Not Shift: D2 → D3” on

DATA MONITOR MODE" .

→ D3 at the correct speed?

AT-46, "

DIAGNOSTIC WORKSHEET" , then continue

the road test.

SCIA5754E

SCIA5755E

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TROUBLE DIAGNOSIS

4. CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE

When the transmission changes speed D3 → D4, return the accelerator pedal.

With CONSULT-II

Read the gear position. Refer to AT-99, " Does the A/T shift-up D3

YES >> 1. Stop the vehicle.

Go to AT-64, "

NO >> Enter a check mark at “A/T Does Not Shift: D3 → D4” on

AT-46, "

the road test. Go to AT-64, "

→ D4 and apply the engine brake?

Cruise Test - Part 3" .

DIAGNOSTIC WORKSHEET" , then continue

DATA MONITOR MODE" .

Cruise Test - Part 3" .

SCIA5756E

Cruise Test - Part 3 ACS0098D

1. CHECK MANUAL MODE FUNCTION

Move to manual mode from “D” position. Does it switch to manual mode?

YES >> GO TO 2. NO >> Continue road test and add chicanery to “Cannot Be

Changed to Ma nu al Mode ” on the AT-46, "

WORKSHEET" .

DIAGNOSTIC

2. CHECK SHIFT-DOWN

During manual mode driving , is downshift f rom M5 → M4 → M3 → M2 → M1 performed?

With CONSULT-II

Read the gear position. Refer to AT-99, " Is downshifting correctly performed?

YES >> GO TO 2. NO >> Enter a check mark at “A/T Does Not Shift” at the corre-

sponding position (5th → 4th, 4th → 3rd, 3rd → 2nd, 2nd → 1st) on AT- 4 6 , " continue the road test.

DIAGNOSTIC WORKSHEET" , then

DATA MONITOR MODE" .

3. CHECK ENGINE BRAKE

Check engine brake. Does engine braking effectively reduc e speed in M1 position?

YES >> 1. Stop the vehicle.

2. Perform the self-diagnostics. Refer to AT- 9 5 , "

DIAGNOSTIC RESULT MODE" , AT- 105, " Diagnostic Procedure without CONSULT-II" .

NO >> Enter a check mark at “Vehicle Does Not Decelerate by

Engine Brake” on the AT-46, "

SHEET" , then continue trouble diagnosis.

DIAGNOSTIC WORK-

SELF-

SCIA6237E

SCIA6238E

SCIA6239E

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TROUBLE DIAGNOSIS

Vehicle Speed at Which Gear Shifting Occurs ACS0098E

2WD MODELS

Throttle position

Full throttle

Half throttle

● At half throttle, the accelerator opening is 4/8 of the full opening.

1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1

56 - 64

(35 - 40)

44 - 52

(27 - 32)

90 - 98

(56 - 61)

71 - 79

(44 - 49)

141 - 149

(88 - 93)

108 - 116

(67 - 72)

Vehicle speed km/h (MPH)

202 - 210

(126 - 130)

136 - 144

(85 - 89)

198 - 206

(123 - 128)

89 - 97

(55 - 60)

123 - 131

(76 - 81)

64 - 72

(40 - 45)

74 - 82

(46 - 51)

29 - 37

(18 - 23)

32 - 40

(20 - 25)

9 - 17

(6 - 11)

AWD MODE LS

Throttle position

Full throttle

Half throttle

● At half throttle, the accelerator opening is 4/8 of the full opening.

1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1

54 - 62

(34 - 39)

42 - 50

(26 - 31)

86 - 94

(53 - 58)

68 - 76

(42 - 47)

135 - 143

(84 - 89)

104 - 112

(65 - 70)

Vehicle speed km/h (MPH)

194 - 202

(121 - 126)

130 - 138

(81 - 86)

190 - 198

(118 - 123)

85 - 93

(53 - 58)

117 - 125

(73 - 78)

62 - 70

(39 - 43)

70 - 78

(43 - 48)

28 - 36

(17 - 22)

30 - 38

(19 - 24)

9 - 17

(6 - 11)

Vehicle Speed at Which Lock-Up Occurs/Releases ACS0098F

2WD MODELS

Throttle position

Closed throttle 56 - 64 (35 - 40) 53 - 61 (33 - 38) Half throttle 168 - 176 (104 - 110) 131 - 139 (81 - 86)

● At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)

● At half throttle, the accelerator opening is 4/8 of the full opening.

Lock-up “ON” Lock-up “OFF”

AWD MODE LS

Throttle position

Closed throttle 54 - 62 (34 - 39) 51 - 59 (32 - 37) Half throttle 161 - 169 (100 - 105) 126 - 134 (78 - 83)

● At closed throttle, the accelerator opening is less than 1/8 condition. (Closed throttle position signal: OFF)

● At half throttle, the accelerator opening is 4/8 of the full opening.

Lock-up “ON” Lock-up “OFF”

Vehicle speed km/h (MPH)

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AT-65

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TROUBLE DIAGNOSIS

Symptom Chart ACS0098H

● The diagnostics item numbers sho w the sequence for inspection. Inspect in order from Item 1.

● Overhaul and inspection ins ide the A/T only if A/T fluid con ditio n is NG. Refer to AT-51, "A/T Fluid Condi-

tion Check" .

No. Items Symptom Condition Diagnostic Item

1. Engine idle speed EC-77

2. Engine speed signal AT-127

3. Accelerator pedal position sensor AT-137

4. Control linkage adjustment AT-238

5. A/T fluid temperature sensor AT-140

Large shock. (“N” → “D” position)

Shift Shock

Refer to AT-198,

"Large Shock (“N” to “D” Position)" .

Shock is too large when changing D1 →

2 or M1 → M2 .

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 10. Direct clutch AT-327

6. ATF pressure switch 1 and front brake solenoid valve

7. CAN communication line AT-110

8. A/T fluid level and state AT-51

9. Line pressure test AT-53

10. Control valve with TCM AT-248

11. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. ATF pressure switch 5 and direct clutch solenoid valve

4. CAN communication line AT-110

5. Engine speed signal AT-127

6. Turbine revolution sensor AT-145

7. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

8. A/T fluid level and state AT-51

9. Control valve with TCM AT-248

Reference

page

AT-178

AT-158

AT-275

AT-182

AT-162

AT-122

AT-147

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AT-66

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TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. ATF pressure switch 6, high and low reverse clutch solenoid valve

4. CAN communication line AT-110

Shock is too large

Shift Shock

when changing D D

3 or M2 → M3 .

Shock is too large when changing D3 → D

4 or M3 → M4 .

Shock is too large when changing D4 → D

5 or M4 → M5 .

2 →

ON vehicle

OFF vehicle 10. High and low reverse clutch AT-325

ON vehicle

OFF vehicle 10. Input clutch AT-315

ON vehicle

OFF vehicle

5. Engine speed signal AT-127

6. Turbine revolution sensor AT-145

7. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

8. A/T fluid level and state AT-51

9. Control valve with TCM AT-248

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. ATF pressure switch 3 and input clutch solenoid valve

4. CAN communication line AT-110

5. Engine speed signal AT-127

6. Turbine revolution sensor AT-145

7. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

8. A/T fluid level and state AT-51

9. Control valve with TCM AT-248

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. ATF pressure switch 1 and front brake solenoid valve

4. CAN communication line AT-110

5. Engine speed signal AT-127

6. Turbine revolution sensor AT-145

7. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

8. A/T fluid level and state AT-51

9. Control valve with TCM AT-248

10. Front brake (brake band) AT-280

11. Input clutch AT-315

Reference

page

AT-184,

AT-166

AT-122

AT-147

AT-180

AT-154

AT-122

AT-147

AT-178

AT-158

AT-122

AT-147

Revision: 2005 July 2005 G35 Sedan

AT-67

Page 81

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. CAN communication line AT-110

4. Engine speed signal AT-127

ON vehicle

Shock is too large for

Shift Shock

downshift when accelerator pedal is pressed.

Shock is too large for upshift when accelerator pedal is released.

Shock is too large for lock-up.

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 10. Torque converter AT-292

5. Turbine revolution sensor AT-145

6. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

7. A/T fluid level and state AT-51

8. Control valve with TCM AT-248

9. Front brake (brake band) AT-280

10. Input clutch AT-315

11. High and low reverse clutch AT-325

12. Direc t c lutch AT-327

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. Engine speed signal AT-127

4. CAN communication line AT-110

5. Turbine revolution sensor AT-145

6. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

7. A/T fluid level and state AT-51

8. Control valve with TCM AT-248

9. Front brake (brake band) AT-280

10. Input clutch AT-315

11. High and low reverse clutch AT-325

12. Direct clutch AT-327

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. Engine speed signal AT-127

4. CAN communication line AT-110

5. Turbine revolution sensor AT-145

6. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

7. Torque converter clutch solenoid valve AT-129

8. A/T fluid level and state AT-51

9. Control valve with TCM AT-248

Reference

page

AT-122

AT-147

AT-122

AT-147

AT-122

AT-147

Revision: 2005 July 2005 G35 Sedan

AT-68

Page 82

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. Accelerator pedal position sensor AT-137

2. Control linkage adjustment AT-238

3. CAN communication line AT-110

4. A/T fluid level and state AT-51

5. Control valve with TCM AT-248

6. Front brake (brake band) AT-280

7. Input clutch AT-315

8. High and low reverse clutch AT-325

9. Direct clutch AT-327

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 5 and direct clutch solenoid valve

4. Line pressure test AT-53

5. CAN communication line AT-110

6. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 6, high and low reverse clutch solenoid valve

4. Line pressure test AT-53

5. CAN communication line AT-110

6. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 3 and input clutch solenoid valve

4. ATF pressure switch 1 and front brake solenoid valve

5. Line pressure test AT-53

6. CAN communication line AT-110

7. Control valve with TCM AT-248

Shift Shock

No Up Shift

Shock is too large during engine brake.

Gear does not change

1 → D2 or from

from D

1 → M2 .

M Refer to AT-209, "

Does Not Shift: D1 → D2" .

Gear does not change from D

2 → D3 or from

2 → M3 .

M Refer to AT-211, "

Does Not Shift: D2 → D3" .

Gear does not change from D

3 → D4 or from

3 → M4 .

M Refer to AT-213, "

Does Not Shift: D3 → D4" .

A/T

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 7. Direct clutch AT- 327

ON vehicle

OFF vehicle 7. High and low reverse clutch AT-325

ON vehicle

OFF vehicle 8. Input clutch AT-315

Reference

page

AT-122

AT-147

AT-182

AT-162

AT-122

AT-147

AT-184,

AT-166

AT-122

AT-147

AT-180

AT-154

AT-178

AT-158

Revision: 2005 July 2005 G35 Sedan

AT-69

Page 83

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 1 and front brake solenoid valve

Gear does not change from D

No Up Shift

No Down Shift

4 → D5 or from

4 → M5 .

M Refer to AT-216, "

Does Not Shift: D4 → D5" .

In “D” or “M” p o s ition, does not downshift to 4th gear.

In “D” or “M” p o s ition, does not downshift to 3rd gear.

ON vehicle

A/T

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 8. Input clutch AT-315

4. ATF pressure switch 5 and direct clutch solenoid valve

5. Turbine revolution sensor AT-145

6. Line pressure test AT-53

7. CAN communication line AT-110

8. Control valve with TCM AT-248

9. Front brake (brake band) AT-292

10. Input clutch AT-315

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 1 and front brake solenoid valve

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

8. Front brake (brake band) AT-292

9. Input clutch AT-315

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 3 and input clutch solenoid valve

4. ATF pressure switch 1 and front brake solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

Reference

page

AT-122

AT-147

AT-178

AT-158

AT-182

AT-162

AT-122

AT-147

AT-178

AT-158

AT-182

AT-162

AT-122

AT-147

AT-180

AT-154

AT-178

AT-158

Revision: 2005 July 2005 G35 Sedan

AT-70

Page 84

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 6, high and low reverse clutch solenoid valve

4. CAN communication line AT-110

5. Line pressure test AT-53

6. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 5 and direct clutch solenoid valve

4. CAN communication line AT-110

5. Line pressure test AT-53

6. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. Direct clutch solenoid valve AT-162

4. Line pressure test AT-53

5. CAN communication line AT-110

6. Control valve with TCM AT-248

7. 3rd one-way clutch AT-313

8. 1st one-way clutch AT-320

9. Gear system AT-280

10. Reverse brake AT-292

11. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

12. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

No Down Shift

Slips/Will Not Engage

In “D” or “M” position, does not downshift to 2nd gear.

In “D” or “M” position, does not downshift to 1st gear.

When “D” or “M” position, remains in 1st gear.

ON vehicle

OFF vehicle 7. High and low reverse clutch AT-325

ON vehicle

OFF vehicle 7. Direct clutch AT- 327

ON vehicle

OFF vehicle

Reference

page

AT-122

AT-147

AT-184

AT-166

AT-122

AT-147

AT-182

AT-162

AT-122

AT-147

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-71

Page 85

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. Low coast brake solenoid valve AT-170

4. Line pressure test AT-53

5. CAN communication line AT-110

6. Control valve with TCM AT-248

7. 3rd one-way clutch AT-313

8. Gear system AT-280

9. Direct clutch AT-327

10. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. Line pressure test AT-53

4. CAN communication line AT-110

5. Control valve with TCM AT-248

6. 3rd one-way clutch AT-313

7. Gear system AT-280

8. High and lo w r everse cl utch AT-325

9. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

AT-17, "C ros s-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

10. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

ON vehicle

When “D” or “M” position, remains in 2nd gear.

OFF vehicle

Slips/Will Not Engage

ON vehicle

When “D” or “M” position, remains in 3rd gear.

OFF vehicle

Reference

page

AT-122

AT-147

AT-275

AT-122

AT-147

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-72

Page 86

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 3 and input clutch solenoid valve

4. ATF pressure switch 5 and direct clutch solenoid valve

Slips/Will Not Engage

ON vehicle

When “D” or “M” position, remains in 4th gear.

OFF vehicle

ON vehicle

When “D” or “M” position, remains in 5th gear.

OFF vehicle

5. ATF pressure switch 6, high and low reverse clutch solenoid valve

6. Low coast brake solenoid valve AT-170

7. Front brake solenoid valve AT-158

8. Line pressure test AT-53

9. CAN communication line AT-110

10. Control valve with TCM AT-248

11. Input clutch AT-315

12. Gear system AT-280

13. High and low reverse clutch AT-325

14. Direct clutch AT-327

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 1 and front brake solenoid valve

4. Line pressure test AT-53

5. CAN communication line AT-110

6. Control valve with TCM AT-248

7. Front brake (brake band) AT-292

8. Input clutch AT-315

9. Gear system AT-280

10. High and low reverse clutch AT-325

Reference

page

AT-122

AT-147

AT-180

AT-154

AT-182

AT-162

AT-184,

AT-166

AT-122

AT-147

AT-178

AT-158

Revision: 2005 July 2005 G35 Sedan

AT-73

Page 87

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Accelerator pedal position sensor AT-137

Slips/Will Not Engage

Vehicle cannot be started from D Refer to AT-206,

"Vehicle Cannot Be Started from D1" .

Does not lock-up. Refer to AT-218, "

Does Not Perform Lock-Up" .

Does not hold lock-up condition. Refer to AT-220, "A/T

Does Not Hold LockUp Condition" .

1 .

A/T

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

3. Line pressure test AT-53

4. CAN communication line AT-110

5. Control valve with TCM AT-248

6. Torque converter AT-292

7. Oil pump assembly AT-310

8. 3rd one-way clutch AT-313

9. 1st one-way clutch AT-320

10. Gear system AT-280

11. Reverse brake AT-292

12. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

Cross-Sectional View (2WD Models)" or AT-18,

AT-17, " "Cross-Sectional View (AWD Models)" )

13. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Engine speed signal AT-127

4. Turbine revolution sensor AT-145

5. Torque converter clutch solenoid valve AT-129

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Engine speed signal AT-127

4. Turbine revolution sensor AT-145

5. Torque converter clutch solenoid valve AT-129

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

Reference

page

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-74

Page 88

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Engine speed signal AT-127

4. Turbine revolution sensor AT-145

5. Torque converter clutch solenoid valve AT-129

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 5 and direct clutch solenoid valve

4. CAN communication line AT-110

5. Line pressure test AT-53

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. 3rd one-way clutch AT-313

10. Gear system AT-280

11. Direct clutch AT-327

12. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

Slips/Will Not Engage

Lock-up is not released. Refer to AT-222,

"Lock-Up Is Not Released" .

No shock at all or the clutch slips when vehicle changes speed D M

1 → D2 or

1 → M2 .

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

AT-122

AT-147

AT-182

AT-162

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-75

Page 89

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 6, high and low reverse clutch solenoid valve

4. CAN communication line AT-110

5. Line pressure test AT-53

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. 3rd one-way clutch AT-313

10. Gear system AT-280

11. High and low reverse clutch AT-325

12. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

AT-17, "C ros s-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

13. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 3 and input clutch solenoid valve

4. ATF pressure switch 1 and front brake solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. Input clutch AT-315

11. Gear system AT-280

12. High and low reverse clutch AT-325

13. Direc t c lutch AT-327

Slips/Will Not Engage

No shock at all or the clutch slips when vehicle changes speed D M

2 → D3 or

2 → M3 .

3 → D4 or

3 → M4 .

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

AT-122

AT-147

AT-184,

AT-166

AT-275

AT-122

AT-147

AT-180

AT-154

AT-178

AT-158

Revision: 2005 July 2005 G35 Sedan

AT-76

Page 90

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 1 and front brake solenoid valve

ON vehicle

4. ATF pressure switch 5 and direct clutch solenoid valve

Slips/Will Not Engage

No shock at all or the clutch slips when vehicle changes speed D M

When you press the accelerator pedal and shift speed D or M engine idles or the transmission slips.

4 → D5 or

4 → M5 .

5 → D4

5 → M4 the

OFF vehicle

ON vehicle

OFF vehicle

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. Front brake (brake band) AT-292

11. Input clutch AT-315

12. Gear system AT-280

13. High and low reverse clutch AT-325

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 1 and front brake solenoid valve

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. Input clutch AT-315 11 . Ge ar syst e m AT-280

12. High and low reverse clutch AT-325

13. Direct clutch AT-327

Reference

page

AT-122

AT-147

AT-178

AT-158

AT-182

AT-162

AT-122

AT-147

AT-178

AT-158

AT-182

AT-162

Revision: 2005 July 2005 G35 Sedan

AT-77

Page 91

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 3 and input clutch solenoid valve

ON vehicle

4. ATF pressure switch 1 and front brake solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

Slips/Will Not Engage

When you press the accelerator pedal and shift speed D or M

4 → M3 the

engine idles or the transmi ssion slips.

When you press the accelerator pedal and shift speed D

3 → M2 the

or M engine idles or the transmi ssion slips.

4 → D3

3 → D2

OFF vehicle

ON vehicle

OFF vehicle

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. 3rd one-way clutch AT-313

11. Gear system AT-280

12. High and low reverse clutch AT-325

13. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

Cross-Sectional View (2WD Models)" or AT-18,

AT-17, " "Cross-Sectional View (AWD Models)" )

14. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 6, high and low reverse clutch solenoid valve

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line AT-110

6. Line pressure test AT-53

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. 3rd one-way clutch AT-313

11. Gear system AT-280

12. Direc t c lutch AT-327

13. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

Reference

page

AT-122

AT-147

AT-180

AT-154

AT-178

AT-158

AT-275

AT-122

AT-147

AT-184,

AT-166

AT-182

AT-162

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-78

Page 92

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

3. ATF pressure switch 5 and direct clutch solenoid valve

4. CAN communication line AT-110

5. Line pressure test AT-53

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. 3rd one-way clutch AT-313

10. 1st one-way clutch AT-320 11 . Ge ar syst e m AT-280

12. Reverse brake AT-292

13. Forward one-way clutch (Parts behind drum suppor t is impossible to perform inspection by disassembly. Refer to

AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

14. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. CAN communication line AT-110

5. PNP switch AT-118

6. Control linkage adjustment AT-238

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

10. 1st one-way clutch AT-320 11 . Ge ar syst e m AT-280

12. Reverse brake AT-292

13. Forward one-way clutch (Parts behind drum suppor t is impossible to perform inspection by disassembly. Refer to

AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

14. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

Slips/Will Not Engage

When you press the accelerator pedal and shift speed D

2 → M1 the

or M engine idles or the transmission slips.

With selector lever in “D” position, acceleration is extremely poor.

2 → D1

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

AT-122

AT-147

AT-182

AT-162

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-79

Page 93

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. ATF pressure switch 6, high and low reverse clutch solenoid valve

5. CAN communication line AT-110

6. PNP switch AT-118

7. Control linkage adjustment AT-238

8. Control valve with TCM AT-248

9. Gear system AT-280

10. Output shaft AT-292

11. Reverse brake AT-292

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. CAN communication line AT-110

5. Control valve with TCM AT-248

6. Torque converter AT-292

7. Oil pump assembly AT-310

8. 3rd one-way clutch AT-313

9. 1st one-way clutch AT-320

10. Gear system AT-280

11. Reverse brake AT-292

12. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

AT-17, "C ros s-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

13. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

Slips/Will Not Engage

ON vehicle

With selector lever in “R” position, acceleration is extremely poor.

OFF vehicle

ON vehicle

While starting off by accelerating in 1st, engine races or slippage occurs.

OFF vehicle

Reference

page

AT-184,

AT-166

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-80

Page 94

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

ON vehicle

While accelerating in 2nd, engine races or slippage occurs.

OFF vehicle

Slips/Will Not Engage

ON vehicle

While accelerating in 3rd, engine races or slippage occurs.

OFF vehicle

4. CAN communication line AT-110

5. ATF pressure switch 5 and direct clutch solenoid valve

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. 3rd one-way clutch AT-313

10. Gear system AT-280

11. Direct clutch AT-327

12. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. CAN communication line AT-110

5. ATF pressure switch 6, high and low reverse clutch solenoid valve

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. 3rd one-way clutch AT-313

10. Gear system AT-280

11. High and low reverse clutch AT-325

12. Forward one-way clutch (Parts behind drum suppor t is impossible to perform inspection by disassembly. Refer to

AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

13. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

Reference

page

AT-182

AT-162

AT-275

AT-184,

AT-166

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-81

Page 95

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

While accelerating in

Slips/Will Not Engage

42 Sl ip s at lock-up.

4th, engine races or slippage occurs.

While accelerating in 5th, engine races or slippage occurs.

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

4. CAN communication line AT-110

5. ATF pressure switch 3 and input clutch solenoid valve

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. Input clutch AT-315

10. Gear system AT-280

11. High and low reverse clutch AT-325

12. Direc t c lutch AT-327

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. CAN communication line AT-110

5. ATF pressure switch 1 and front brake solenoid valve

6. Control valve with TCM AT-248

7. Torque converter AT-292

8. Oil pump assembly AT-310

9. Front brake (brake band) AT-292

10. Input clutch AT-315

11. Gear system AT-280

12. High and low reverse clutch AT-325

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Engine speed signal AT-127

4. Turbine revolution sensor AT-145

5. Torque converter clutch solenoid valve AT-129

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Torque converter AT-292

9. Oil pump assembly AT-310

Reference

page

AT-180

AT-154

AT-178

AT-158

Revision: 2005 July 2005 G35 Sedan

AT-82

Page 96

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. Accelerator pedal position sensor AT-137

4. ATF pressure switch 5 and direct clutch solenoid valve

5. PNP switch AT-118

6. CAN communication line AT-110

7. Control linkage adjustment AT-238

8. Control valve with TCM AT-248

9. Torque converter AT-292

10. Oil pump assembly AT-310

11. 1st one-way clutch AT-320

12. Gear system AT-280

13. Reverse brake AT-292

14. Direct clutch AT-327

15. Forward one-way clutch (Parts behind drum suppor t is impossible to perform inspection by disassembly. Refer to

AT-17, "Cross-Sectional View (2WD Models)" or AT-18, "Cross-Sectional View (AWD Models)" )

16. Forward brake (Parts behind drum support is impossib le to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. PNP switch AT-118

4. Control linkage adjustment AT-238

5. Control valve with TCM AT-248

6. Oil pump assembly AT-310

7. Gear system AT-280

8. Output shaft AT-292

Slips/Will Not Engage

ON vehicle

No creep at all. Refer to AT-201,

"Vehicle Does No t Creep Backward in “R” Position" , AT-204, "Vehicle Does No t Creep Forward in “D” Position"

OFF vehicle

ON vehicle

Vehicle cannot run in all positions.

OFF vehicle

Reference

page

AT-182

AT-162

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-83

Page 97

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. PNP switch AT-118

4. Control linkage adjustment AT-238

5. Control valve with TCM AT-248

6. Torque converter AT-292

7. Oil pump assembly AT-310

8. 1st one-way clutch AT-320

9. Gear system AT-280

10. Reverse brake AT-292

11. Forward one-way clutch (Parts behind drum support is impossible to perform inspection by disassembly. Refer to

Cross-Sectional View (2WD Models)" or AT-18,

AT-17, " "Cross-Sectional View (AWD Models)" )

12. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT-18, "CrossSectional View (AWD Models)" )

1. A/T fluid level and state AT-51

2. Line pressure test AT-53

3. PNP switch AT-118

4. Control linkage adjustment AT-238

5. Control valve with TCM AT-248

6. Gear system AT-280

7. Output shaft AT-292

8. Reverse brake AT-292

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 1 AT-178

6. CAN communication line AT-110

7. Control valve with TCM AT-248

Slips/Will Not Engage

Does Not Change

With selector lever in “D” position, driving is not possible.

With selector lever in “R” position, driving is not possible.

Does not change M5 → M4. Refer to AT-224, "

Does Not Shift: 5th Gear → 4th Gear" .

A/T

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 8. Front brake (brake band) AT-292

Reference

page

AT-275

Revision: 2005 July 2005 G35 Sedan

AT-84

Page 98

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

Does Not Change

52 Others

Does not change M4 → M3. Refer to AT-226, "

Does Not Shift: 4th Gear → 3rd Gear" .

Does not change M3 → M2. Refer to AT-228, "A/T

Does Not Shift: 3rd Gear → 2nd Gear" .

Does not change M2 → M1. Refer to AT-230, "A/T

Does Not Shift: 2nd Gear → 1st Gear" .

Cannot be changed to manual mode. Refer to AT-224,

"Cannot Be Changed to Manual Mode" .

Shift point is high in “D” position.

A/T

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

4. Manual mode switch AT-174

5. ATF pressure switch 1 and ATF pre ssur e sw itc h 3

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Front brake (brake band) AT-292

9. Input clutch AT-315

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 6 AT-184

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Front brake (brake band) AT-292

9. Input clutch AT-315

10. High and low reverse clutch AT-325

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 5 AT-182

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Input clutch AT-315

9. High and low reverse clutch AT-325

10. Direct clutch AT-327

1. Manual mode switch AT-174

2. Turbine revolution sensor AT-145

3. CAN communication line AT-110

1. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

2. Accelerator pedal position sensor AT-137

3. CAN communication line AT-110

4. A/T fluid temperature sensor AT-140

5. Control valve with TCM AT-248

Reference

page

AT-178

AT-180

AT-122

AT-147

Revision: 2005 July 2005 G35 Sedan

AT-85

Page 99

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

Others

Shift point is low in “D” position.

Judder occurs during lock-up.

Strange noise in “R” position.

Strange noise in “N” position.

ON vehicle

OFF vehicle 9. Torque converter AT-292

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

2. Accelerator pedal position sensor AT-137

3. CAN communication line AT-110

4. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Engine speed signal AT-127

3. Turbine revolution sensor AT-145

4. Vehicle speed sensor·A/T and vehicle speed sensor·MTR

5. Accelerator pedal position sensor AT-137

6. CAN communication line AT-110

7. Torque converter clutch solenoid valve AT-129

8. Control valve with TCM AT-248

1. A/T fluid level and state AT-51

2. Engine speed signal AT-127

3. CAN communication line AT-110

4. Control valve with TCM AT-248

5. Torque converter AT-292

6. Oil pump assembly AT-310

7. Gear system AT-280

8. High and lo w r everse cl utch AT-325

9. Reverse brake AT-292

1. A/T fluid level and state AT-51

2. Engine speed signal AT-127

3. CAN communication line AT-110

4. Control valve with TCM AT-248

5. Torque converter AT-292

6. Oil pump assembly AT-310

7. Gear system AT-280

Reference

page

AT-122

AT-147

AT-122

AT-147

Revision: 2005 July 2005 G35 Sedan

AT-86

Page 100

TROUBLE DIAGNOSIS

No. Items Symptom Condition Diagnostic Item

1. A/T fluid level and state AT-51

2. Engine speed signal AT-127

3. CAN communication line AT-110

4. Control valve with TCM AT-248

5. Torque converter AT-292

6. Oil pump assembly AT-310

7. Gear system AT-280

8. Forward brake (Parts behind drum support is impossible to perform inspection by disassembly. Refer to AT-17,

"Cross-Sectional View (2WD Models)" or AT- 18, "Cross- Sectional View (AWD Models)" )

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 5 AT-182

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Input clutch AT-315

9. High and low reverse clutch AT-325

10. Direct clutch AT-327

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 1 AT-178

6. CAN communication line AT-110

7. Control valve with TCM AT-248

1. PNP switch AT-118

2. A/T fluid level and state AT-51

3. Control linkage adjustment AT-238

4. Manual mode switch AT-174

5. ATF pressure switch 1 and ATF pre ssur e sw itc h 3

6. CAN communication line AT-110

7. Control valve with TCM AT-248

8. Front brake (brake band) AT-292

9. Input clutch AT-315

Others

Strange noise in “D” position.

Vehicle does not decelerate by engine brake. Refer to AT-232,

"Vehicle Does No t Decelerate by Engine Brake" .

Engine brake does not work M5 → M4.

Engine brake does not work M4 → M3.

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle 8. Front brake (brake band) AT-292

ON vehicle

OFF vehicle

Reference

page

AT-275

AT-178

AT-180

Revision: 2005 July 2005 G35 Sedan

AT-87

Infiniti G35 Workshop Manual

Specifications and Main Features

Frequently Asked Questions

User Manual