Nissan Maxima 2005 User Manual

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Edition: August 2004 Revision: July 2005 Publication No. SM5E-1A34U1

QUICK REFERENCE INDEX

GENERAL INFORMATION

B ENGINE

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 Transaxle

Automatic Transaxle

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 E

© 2005 NISSAN NORTH AMERICA, INC. All rights reserved. No p a rt of this Se rvice Man ual may be reproduc ed or sto re d in a retrie val system, or tran smitted in any form, or by any means, electronic, mecha nical, photo-co pying, recording or oth erwise, without the prio r written permissi on of Nissan North America, Inc., Gardena, California.

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This manual contains maintenance and repair procedures for the 2005 NISSAN MAXIMA.

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.

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PLEASE HELP MAKE THIS SERVICE MANUAL BETTER!

Your comments are important to NISSAN 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:

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

SERVICE MANUAL: Model: Year:

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

Please describe any Service Manual issues or problems in detail:

Page number(s)

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 NISSAN 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:

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QUICK REFERENCE CHART: MAXIMA

2005

QUICK REFERENCE CHART: MAXIMA PFP:00000

Engine Tune-Up Data

Cylinder arrangement V-6 Displacement Bore and stroke 95.5 x 81.4 mm (3.760 x 3.205 in)

Valve arrangement DOHC Firing order 1-2-3-4-5-6

Number of piston ring s

Number of main bearings 4 Compression ratio 10.0:1

Compression pressure

Cylinder number

Compression 2 Oil 1

Standard Minimum Differential limit between cylinders

1,275 kPa (13.0 cm

3,498 cm

981 kPa (10.0 cm

98 kPa (1.0 cm

(213.45 in3 )

, 185 psi) / 300 rpm

, 142 psi) / 300 rpm

, 14 psi) / 300 rpm

ELS001CY

Valve timing (IVTC - OFF)

abcdef

240° 238° - 6° 64° 8° 52°

Radiator

Cap relief pressure

Leakage test pressure 157 (1.6, 23)

Standard 78 – 98 (0.8 – 1.0, 11 – 14)

Limit 59 (0.6, 9)

SEM713A

PBIC0187E

Unit: degree

Unit: kPa (kg/cm2 , psi)

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QUICK REFERENCE CHART: MAXIMA

Engine Idle Speed and Ignition Timing

Target idle speed

Air conditioning: ON In P or N position 825 rpm or more Ignition timing In P or N position 15° ± 5° BTDC

*1: Under the following conditions:

● Air conditioner switch: OFF

● Electric load: OFF (Lights, heater fan & rear window defogger)

● Steering wheel: Kept in straight-ahead position

No load*

(in P or N position)

Drive Belt Deflection and Tension

M/T: 625 ± 50 rpm

5-speed A/T: 675 ± 50 rpm

2005

Deflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)

Used belt

Limit After adjustment Limit After adjustment

Alternator and air conditioning compressor

Power steering pump

Applied pushing force

*: If belt tension gauge cannot be installed at check points shown , che ck dr iv e belt tensi on at different locat ion on th e bel t.

7 (0.28)

11 (0.43)

98 N (10 kg, 22 lb) —

4.2 - 4.6 (0.17 - 0.18)

7.3 - 8.0 (0.29 - 0.30)

New belt

3.7 - 4.1 (0.15 - 0.16)

6.5 - 7.2 (0.26 - 0.28)

294 (30, 66)

196 (20, 44)

Used belt

730 - 818

(74.5 - 83.5,

164 - 184)

495 - 583

(50.5 - 59.5,

111 - 131)

LLIA0060E

New belt

838 - 926

(85.5 - 94.5,

188 - 208)

603 - 691

(61.5 - 70.5,

135.6 - 155.4)

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QUICK REFERENCE CHART: MAXIMA

Spark Plugs (Double-Platinum Tipped)

Make NGK Standard type PLFR5A-11 Hot type PLFR4A-11 Cold type PLFR6A-11 Gap (nominal) 1.1 mm (0.043 in)

2005

Front Wheel Alignmen t (Unladen*1)

Tire size 225/55R17 245/45R18 Camber

degree minute (decimal degree)

Caster degree minute (decimal degree)

Kingpin inclination degree minute (decimal degree)

Minimum −1°00′ (−1.00°) Nominal −0°15′ (−0.25°) Maximum 0°30′ (0.50°) Left and right difference 0° 45′ (0.75°) or less Minimum 2°05′ (2.08°) Nominal 2°50′ (2.83°) Maximum 3°35′ (3.58°) Left and right difference 0° 45′ (0.75°) or less Minimum 13°50′ (13.83°) Nominal 14°35′ (14.58°) Maximum 15°20′ (15.33°)

ELS001E6

SFA234AC

Total toe-in

Distance (A − B) mm (in)

Angle (left plus right) degree minute (decimal degree)

Wheel turning angle full turn*2

*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and ma ts in designate d posi t ions. *2: On power steering models, wheel tu rning fo rce (at circ umferenc e of steer ing wheel ) of 98 to 147 N (10 t o 15 kg-f, 22 to 33 lb-f) with engine at idle.

Inside degree minute (decimal degree)

Outside degree minute (decimal degree)

Minimum −0.5 (−0.020) Nominal 0.5 (0.020) Maximum 1.5 (0.059) Minimum — Nominal 2′ (0.03°) Maximum — Minimum 32°00′ (32.0°)31°00′ (31.0°) Nominal 35°30′ (35.5°)34°30′ (34.5°) Maximum 36°30′ (36.5°)35°30′ (35.5°)

Nominal 29°30′ (29.0°)28°30′ (28.5°)

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QUICK REFERENCE CHART: MAXIMA

2005

Rear Wheel Alignment (Unladen*)

Minimum -0° 08' (-0.13°) Camber Degree minute (Decimal degree)

Distance (A − B) mm (in)

Distance difference

Total toe-in

*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and ma ts in design ated posi t io ns.

between RH and LH side mm (in)

Angle (left plus right) Degree minute (Decimal degree)

Nominal -0° 38′ (-0.63°)

Maximum -0° 68′ (-1.13°)

SFA234AC

Minimum 2.3 (0.091)

Nominal 3.8 (0.150)

Maximum 5.3 (0.209)

Minimum -2.0 (-0.079)

Nominal 0 (0)

Maximum 2.0 (0.079)

Minimum 0° 6′ (0.10°)

Nominal 0° 10′ (0.17°)

Maximum 0° 14′ (0.23°)

ELS001E7

Brake

Brake mode l CLZ25VE disc brake Cylinder bore diameter 57.2 (2.25)

Front brake

Rear brake

Master cylinder Cylinder bore diameter 23.81 (15/16) Control valve Screw in type 30 × 0.4 (1.18 × 0.02)

Brake booster

Recommended brake fluid

Pad Length × width × thickness

Rotor outer diameter × thickness 320 × 28 (12.60 × 1.10) Brake model AD9A disc brake Cylinder bore diameter 34.9 (1.374) Pad

Length × width × thickness Rotor outer diameter × thickness 292 × 9 (11.50 × 0.35)

Booster model M215T

Diaphragm diameter

Primary 230 (9.06) Secondary 205 (8.07)

111.0 × 62.5 × 9.5 (4.37 × 2.46 × 0.37)

83.0 × 33.0 × 8.5 (3.27 × 1.30 × 0.33)

Genuine NISSAN Super Heavy Duty Brake Fluid, or

equivalent DOT 3 (US FMVSS No. 116)

ELS001D1

Unit: mm (in)

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QUICK REFERENCE CHART: MAXIMA

Disc Brake - Repair Limits

Brake model CLZ25VE AD9A Pad wear limit Minimum thickness 2.0 (0.079) 2.0 (0.079)

Maximum runout 0.07 (0.0028) 0.05 (0.0020)

Rotor repair limit

Brake Pedal

Minimum thickness 26.0 (1.02 ) 8.0 (0.31) Maximum uneven wear (mea-

sured at 8 positions)

0.015 (0.0006) or less

2005

Unit: mm (in)

WFIA0022E

Free height “H”*

Clearance “C1” and “C2” betwee n pedal stopper and threaded end of stop lamp switch or ASCD switch

*: Measured from surface of dash reinforce me nt panel to surface of pedal pad

Refill Capacities

Description

Fuel 75.6 20 gal 16 5/8 gal Engine oil

Drain and refill Dry engine (engine overhaul) 4.6 4 7/8 qt 4 qt

Cooling system With reservoir at MAX level 8.5 2 1/4 gal 1 7/8 gal Manual transaxle fluid (MTF) 2.2 2 3/8 qt 2 qt Transaxle fluid (ATF) 5 A/T 7.3 7 3/4 qt 6 3/8 qt Power steering fluid (PSF) 1.0 2 1/8 pt 1 3/4 pt Air conditioning system refrigerant 0.55 ± 0.25 kg 1.21 ± 0.055 lb 1.21 ± 0.055 lb Air conditioning system lubricant

With oil filter change 4.2 4 1/2 qt 3 3/4 qt Without oil filter change 4.0 4 1/4 qt 3 1/2 qt

M/T 164.1 - 174.1 (6.46 - 6.85) A/T 173. 1 - 18 3.1 (6.81 - 7.21)

0.74 - 1.96 (0.029 - 0.077)

Capacity (approximate)

Liter US measure Imp measure

150 m

5.03 fl oz 5.3 fl oz

ELS001D2

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B ENGINE

ACC

SECTION

ACCELERATOR CONTROL SYSTEM

CONTENTS

ACCELERATOR CONTROL SYSTEM ...................... 2

Removal and Installation .......................................... 2

REMOVAL ............................................................. 2

INSTALLATION ..................................................... 2

SERVICE DATA AND SPECIFICATIONS (SDS) ........ 3

Accelerator Control ...................................................3

PEDAL TRAVEL .................................................... 3

Revision: July 2005 2005 Maxima

ACC-1

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ACCELERATOR CONTROL SYSTEM

ACCELERATOR CONTROL SYSTEM PFP:18005 Removal and Installation EBS00JTF

REMOVAL

1. Disconnect the negative battery cable.

2. Disconnect the accelerator position sensor electrical connector. a. Pull the connector lock back to unlock the connector from the

accelerator pedal position sensor as shown.

b. Pull up on the connector to disconnect it from the accelerator

pedal position sensor as shown.

LBIA0333E

3. Remove the upper accelerator pedal nuts and lower accelerator pedal bolt.

4. Remove the accelerator pedal and accelerator position sensor assembly.

● For electrical insp ec tio n o f th e ac ce le rat or pe da l position sen-

sor, refer to EC-642, "

SENSOR" .

CAUTION:

● Do not disassemble the pedal assembly. Do not remove

the accelerator pedal position sensor from the pedal assembly.

● Avoid impact from dropping during handling.

● Keep the pedal assembly away from water.

ACCELERATOR PEDAL POSITION

LBIA0334E

INSTALLATION

1. Installation is in the reverse ord er of rem ov al .

● Check the accele rator peda l for smooth operati on. There sh ould be no binding or st icki ng when app ly-

ing or releasing the acceler ator pedal.

● Check that the accelerator pedal moves through the full spec-

ified distance of pedal travel.

Pedal travel A : 52.6 - 58.2 mm (2.07 - 2.29 in)

CAUTION:

When the harness conne ctor of the acceler ator pedal position sensor is disconnected, perform the "Accelerator pedal released position learning". Refer to EC-90, "

Pedal Rel e ased Position Learning" .

Accelerator

LBIA0062E

Revision: July 2005

ACC-2

2005 Maxima

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS) PFP:00030

Accelerator Control EBS00JTG

PEDAL TRAVEL

Accelerator control pedal - total travel 52.6 - 58.2 mm (2.07 - 2.29 in)

ACC

Revision: July 2005 2005 Maxima

ACC-3

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SERVICE DATA AND SPECIFICATIONS (SDS)

Revision: July 2005

ACC-4

2005 Maxima

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K ELECTRICAL

SECTION

AUTO CRUISE CONTROL SYSTEM

CONTENTS

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

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

ACS

Revision: July 2005 2005 Maxima

ACS-1

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AUTOMATIC SPEED CONTROL DEVICE (ASCD)

AUTOMATIC SPEED CONTROL DEVICE (ASCD) PFP:18930 Description EKS009HW

Regarding the information for ASCD system, refer to EC-30, "AUTOMATIC SPEED CONTROL DEVICE

(ASCD)" .

Revision: July 2005 2005 Maxima

ACS-2

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C TRANSMISSION/TRANSAXLE

SECTION

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 for A/T Assembly or TCM Replacement ..... 8

Precautions .............................................................. 9

Service Notice or Precautions .................................11

Wiring Diagrams and Trouble Diagnosis .................11

PREPARATIO N ................. .................... .................... 12

Special Service Tools ............................................. 12

Commercial Service Tools ...................................... 14

A/T FLUID ................................................................. 15

Changing A/T Fluid .. ...... ....... ...... ....... .................... 15

Checking A/T Fluid ................................................. 15

A/T CONTROL SYSTEM .......................................... 16

Cross-Sectional View ............................................. 16

Shift Mechanism ..................................................... 17

TCM Function ........... ...... ....... ...... ....... ...... ....... ....... 34

Input/Output Signal of TCM .................................... 35

CAN Communication .............................................. 35

Line Pressure Control .............................. ....... ....... 36

Shift Control ........................................................... 36

Lock-Up Control ..................................................... 38

ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 40

Introduction ............................................................ 40

OBD-II Function for A/T System ............................. 40

One or Two Trip Detection Logic of OBD-II ............ 40

OBD-II Diagnostic Trouble Code (DTC) ................. 40

Malfunction Indicator Lamp (MIL) ........................... 43

TROUBLE DIAGNOSIS ............................................ 44

DTC Inspection Priority Chart ................................ 44

Fail-Safe ................................ ................................. 44

How T o Perform Trouble Diagnosis For Quick and

Accurate Repair ..................................................... 47

A/T Electrical Parts Location .................................. 52

AUTOMATIC TRANSAXLE

Circuit Diagram .......................................................53

Inspections Before Trouble Diagnosis ... ................. 54

Check Before Engine is Started .............................. 58

Check at Idle ...........................................................58

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

Cruise Test - Part 2 ................................................. 61

Cruise Test - Part 3 ................................................. 62

Shift Schedule ........................................................ 63

Symptom Chart .......................................................64

TCM Input/Output Signal Reference Values ........... 71

CONSULT-II Function (TCM) .............................. ....74

Diagnostic Procedure Without CONSULT-II ...........80

DTC U1000 CAN COMMUNICATION LINE .............. 83

Description ................... ...... ....... ...... ........................ 83

On Board Diagnosis Logic ......................................83

Possible Cause .......................................................83

DTC Confirmation Procedure ................................. 83

Wiring Diagram — AT — CAN ................................84

Diagnostic Procedure .............................................85

DTC P0500 VEHICLE SPEED SENSOR MTR .........86

Description ................... ...... ....... ...... ........................ 86

On Board Diagnosis Logic ......................................86

Possible Cause .......................................................86

DTC Confirmation Procedure ................................. 86

Diagnostic Procedure .............................................87

DTC P0613 TCM PROCESSOR ............................... 88

Description ................... ...... ....... ...... ........................ 88

On Board Diagnosis Logic ......................................88

Possible Cause .......................................................88

DTC Confirmation Procedure ................................. 88

Diagnostic Procedure .............................................89

DTC P0705 P ARK/NEUTRAL POSITION SWITCH ...90

Description ................... ...... ....... ...... ........................ 90

On Board Diagnosis Logic ......................................90

Possible Cause .......................................................90

DTC Confirmation Procedure ................................. 90

Wiring Diagram — AT — PNP/SW .........................91

Diagnostic Procedure .............................................92

Component Inspection ............................................94

DTC P0710 A/T FLUID TEMPERATURE SENSOR

Revision: July 2005 2005 Maxima

AT-1

Page 16

CIRCUIT .................................................................... 95

Description ................ .......................... ....................95

On Board Diagnosis Logic ......................................95

Possible Cause .......................................................95

DTC Confirmation Procedure .................................95

Wiring Diagram — AT — FTS .................................96

Diagnostic Procedure .............................................97

Component Inspection ............................................99

DTC P0711 FLUID TEMPERA TURE SENSOR PER-

FORMANCE ............................. ...............................100

Description ................ .......................... ..................100

On Board Diagnosis Logic ....................................100

Possible Cause .....................................................100

DTC Confirmation Procedure ...............................100

Wiring Diagram — AT — FTSP ............................101

Diagnostic Procedure ...........................................102

Component Inspection ..........................................104

DTC P0717 TURBINE REVOLUTION SENSOR CIR-

CUIT ........................................................................105

Description ................ .......................... ..................105

On Board Diagnosis Logic ....................................105

Possible Cause .....................................................105

DTC Confirmation Procedure ...............................105

Wiring Diagram — AT — TRSC ............................106

Diagnostic Procedure ...........................................107

Component Inspection ..........................................108

DTC P0722 VEHICLE SPEED SENSOR A/T (REV-

OLUTION SENSOR) CIRCUIT ................................109

Description ................ .......................... ..................109

On Board Diagnosis Logic ....................................109

Possible Cause .....................................................109

DTC Confirmation Procedure ...............................109

Wiring Diagram — AT — VSSATC .......................110

Diagnostic Procedure ............................................111

Component Inspection ..........................................112

DTC P0726 ENGINE SPEED INPUT CIRCUIT PER-

FORMANCE ............................. ...............................113

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

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

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

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

Diagnostic Procedure ...........................................113

DTC P0731 A/T 1ST GEAR FUNCTION .................115

Description ................ .......................... ..................115

On Board Diagnosis Logic ....................................115

Possible Cause .....................................................115

DTC Confirmation Procedure ...............................115

Wiring Diagram — AT — 1STSIG .........................116

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

DTC P0732 A/T 2ND GEAR FUNCTION ................118

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

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

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

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

Wiring Diagram — AT — 2NDSIG ........................120

Diagnostic Procedure ...........................................122

DTC P0733 A/T 3RD GEAR FUNCTION ................124

Description ................ .......................... ..................124

On Board Diagnosis Logic ....................................124

Possible Cause .....................................................124

DTC Confirmation Procedure ................................124

Wiring Diagram — AT — 3RDSIG ........................126

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

DTC P0734 A/T 4TH GEAR FUNCTION .................130

Description ............................................................130

On Board Diagnosis Logic ....................................130

Possible Cause .....................................................130

DTC Confirmation Procedure ................................130

Wiring Diagram — AT — 4THSIG .........................132

Diagnostic Procedure ............................................133

DTC P0735 A/T 5TH GEAR FUNCTION .................135

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

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

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

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

Wiring Diagram — AT — 5THSIG .........................137

Diagnostic Procedure ............................................139

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .141

Description ............................................................141

On Board Diagnosis Logic ....................................141

Possible Cause .....................................................141

DTC Confirmation Procedure ................................141

Wiring Diagram — AT — TCCSIG ........................142

Diagnostic Procedure ............................................143

DTC P0745 PRESSURE CONTROL SOLENOID

VALVE A (LINE PRESSURE) ..................................144

Description ............................................................144

On Board Diagnosis Logic ....................................144

Possible Cause .....................................................144

DTC Confirmation Procedure ................................144

Wiring Diagram — AT — PC/A .............................145

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

Component Inspection ..........................................148

DTC P0750 SHIFT SOLENOID VALVE A ...............149

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

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

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

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

Wiring Diagram — AT — SSV/A ...........................150

Diagnostic Procedure ............................................151

Component Inspection ..........................................153

DTC P0755 SHIFT SOLENOID VALVE B ...............154

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

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

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

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

Wiring Diagram — AT — SSV/B ...........................155

Diagnostic Procedure ............................................156

Component Inspection ..........................................158

DTC P0760 SHIFT SOLENOID VALVE C ...............159

Description ............................................................159

On Board Diagnosis Logic ....................................159

Possible Cause .....................................................159

DTC Confirmation Procedure ................................159

Wiring Diagram — AT — SSV/C ...........................160

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

Component Inspection ..........................................163

DTC P0762 SHIFT SOLENOID VAL VE C STUCK ON .164

Revision: July 2005 2005 Maxima

AT-2

Page 17

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

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

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

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

Wiring Diagram — AT — SSV/CS ........................ 165

Diagnostic Procedure ........................................... 166

Component Inspection ......................................... 168

DTC P0765 SHIFT SOLENOID VALVE D .............. 169

Description ........................................................... 169

On Board Diagnosis Logic ................................... 169

Possible Cause .................................................... 169

DTC Confirmation Procedure ............................... 169

Wiring Diagram — AT — SSV/D .......................... 170

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

Component Inspection ......................................... 173

DTC P0770 SHIFT SOLENOID VALVE E .............. 174

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

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

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

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

Wiring Diagram — AT — SSV/E .......................... 175

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

Component Inspection ......................................... 178

DTC P0775 PRESSURE CONTROL SOLENOID

VALVE B (SHIFT PRESSURE) ............................... 179

Description ........................................................... 179

On Board Diagnosis Logic ................................... 179

Possible Cause .................................................... 179

DTC Confirmation Procedure ............................... 179

Wiring Diagram — AT — PC/B ............................. 180

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

Component Inspection ......................................... 183

DTC P0780 SHIFT .................................................. 184

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

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

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

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

Wiring Diagram — AT — SFTFNC ....................... 185

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

DTC P0795 PRESSURE CONTROL SOLENOID

VALVE C (TCC AND SHIFT PRESSURE) ............. 188

Description ........................................................... 188

On Board Diagnosis Logic ................................... 188

Possible Cause .................................................... 188

DTC Confirmation Procedure ............................... 188

Wiring Diagram — AT — PC/C ............................ 189

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

Component Inspection ......................................... 192

DTC P0797 PRESSURE CONTROL SOLENOID

VALVE C STUCK ON ............................................. 193

Description ........................................................... 193

On Board Diagnosis Logic ................................... 193

Possible Cause .................................................... 193

DTC Confirmation Procedure ............................... 193

Wiring Diagram — AT — PC/CS .......................... 194

Diagnostic Procedure ........................................... 195

Component Inspection ......................................... 197

DTC P0826 MANUAL MODE SWITCH CIRCUIT .. 198

Description ........................................................... 198

CONSULT-II Reference Value in Data Monitor Mode

.198

On Board Diagnosis Logic ....................................198

Possible Cause .....................................................198

DTC Confirmation Procedure ...............................198

Wiring Diagram — AT — MMSW .........................199

Diagnostic Procedure ...........................................201

Component Inspection ..........................................203

Position Indicator ..................................................203

DTC P0882 TCM POWER INPUT SIGNAL ............204

Description ................... ...... ....... ...... ......................204

On Board Diagnosis Logic ....................................204

Possible Cause .....................................................204

DTC Confirmation Procedure ...............................204

Wiring Diagram — AT — PWR/IN ........................205

Diagnostic Procedure ...........................................207

Component Inspection ..........................................208

DTC P1726 ELECTRIC THROTTLE CONTROL

SYSTEM ......................... ....................................... ..209

Description ................... ...... ....... ...... ......................209

TROUBLE DIAGNOSIS FOR SYMPTOMS .......... ..210

A/T CHECK Indicator Lamp does not come on ....210

Engine Cannot Be Started In “P” or “N” Position ..212

In “P” Position, Vehicle Moves When Pushed ......212

In “N” Position, Vehicle Moves ..............................213

Large Shock (“N” to “D” Position) .........................214

Vehicle Does Not Creep Backward In “R” Position .215 Vehicle Does Not Creep Forward In “D” Position .216 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 ....................... .........217

2 → D3 ....................... .........218

3 → D4 ....................... .........219

4 → D5 ....................... .........220

1 .....................217

A/T Does Not Perform Lock-up ............................221

A/T Does Not Hold Lock-up Condition ..................222

Lock-up Is Not Released ......................................223

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

A/T Does Not Shift: 5th gear → 4th gear ..............225

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

A/T Does Not Shift: 3rd gear → 2nd gear .............226

A/T Does Not Shift: 2nd gear → 1st gear .............227

Vehicle Does Not Decelerate By Engine Brake ....228

TCM Self-diagnosis Does Not Activate ................229

SHIFT CONTROL SYSTEM ....................................231

Control Device ......................................................231

Control Cable ........................................................232

A/T SHIFT LOCK SYSTEM ....................................233

Description ................... ...... ....... ...... ......................233

Shift Lock System Electrical Parts Location .........233

Wiring Diagram — AT — SHIFT ...........................234

Shift Lock Control Unit Reference Values ............235

Component Inspection ..........................................236

ON-VEHICLE SERVICE ..........................................238

Revolution Sensor Replacement ..........................238

Turbine Revolution Sensor Replacement .............238

Park/Neutral Position (PNP) Switch Adjustment ..238

ATF Cooler ...........................................................239

ATF Cooler Valve ..................................................239

Control Cable Adjustment .....................................240

Revision: July 2005 2005 Maxima

AT-3

Page 18

Side cover .............................................................241

Control Valve Assembly ........................................241

Terminal cord assembly ........................................241

TRANSAXLE ASSEMBLY .................... ...... ....... .....243

Removal and Installation ......................................243

INSPECTION AFTER REMOVAL .........................243

OVERHAUL ....................... ....... ...... ....... ...... ....... .....245

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

Locations o f Needle Bea rings, Be aring Races and

Thrust Washers ....................................................251

DISASSEMBLY .......................................................252

Disassembly .........................................................252

REPAIR FOR COMPONENT PARTS ......................272

Oil Pump, 2nd Coast Brake & 2nd Brake .............272

One-Way Clutch Outer Race Sub Assembly & 2nd

Coast Brake Hub & One-Way Clutch No.1 ...........278

Transaxle Case Cover & B5 Brake .......................280

Differential Gear Assembly ...................................285

ASSEMBLY .............................................................288

Assembly (1) ... ...... .............................................. ..288

Adjustment ............................................................295

Assembly (2) ... ...... .............................................. ..296

SERVICE DATA AND SPECIFICATIONS (SDS) ....312

General Specifications ..........................................312

Shift Schedule .......................................................312

Stall Speed ............................................................313

Line Pressure ........................................................313

Time Lag .. ....... ...... ....... ...... ....... ...... ....... ...... ....... ..313

Shift Solenoid Valves ............................................313

Solenoid Valves ....................................................314

Clutch and Brakes ........ ...... ....... ...... ......................314

Final Drive .............................................................315

A/T Fluid Temperature Sensor ..............................316

Turbine Revolution Sensor ....................................316

Revolution Sensor .................................................316

Revision: July 2005 2005 Maxima

AT-4

Page 19

INDEX FOR DTC

INDEX FOR DTC PFP:00024

Alphabetical Index ECS00A0H

NOTE: If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to

AT-83

DTC

Items

(CONSULT-II screen terms)

A/T 1ST GR FNCTN P0731 P0731 AT-115 A/T 2ND GR FNCTN P0732 P0732 AT-118 A/T 3RD GR FNCTN P0733 P0733 AT-124 A/T 4TH GR FNCTN P0734 P0734 AT-130 A/T 5TH GR FNCTN P0735 P0735 AT-135 A/T TCC S/V FNCTN P0744 P0744 AT-141 ATF TEMP SEN/CIRC P0710 P0710 AT-95 CAN COMM CIRCUIT U1000 U1000 AT-83 ELEC TH CONTROL — P1726 AT-209 ENG SPD INP PERFOR — P0726 AT-113 FLUID TEMP SEN P0711 P0711 AT-100 MANUAL MODE SWITCH — P0826 AT-198 PC SOL A(L/PRESS) P0745 P0745 AT-144 PC SOL B(SFT/PRS) P0775 P0775 AT-179 PC SOL C(TCC&SFT) P0795 P079 5 AT-188 PC SOL C STC ON P0797 P0797 AT-193 PNP SW/CIRC P0705 P0705 AT-90 SHIFT P0780 P0780 AT-184 SHIFT SOL A P0750 P0750 AT-149 SHIFT SOL B P0755 P0755 AT-154 SHIFT SOL C P0760 P0760 AT-159 SHIFT SOL D P0765 P0765 AT-169 SHIFT SOL E P0770 P0770 AT-174 SFT SOL C STUCK ON P0762 P0762 AT-164 TCM POWER INPT SIG P0882 P0882 AT-204 TCM PROCESSOR — P0613 AT-88 TURBINE SENSOR P0717 P0717 AT-105 VEH SPD SE/CIR-MTR — P0500 AT-86 VHCL SPEED SEN-A/T P0722 P0722 AT-109

*1: These numbers are prescribed by SAE J2012.

OBD-II Except OBD-II

CONSULT-II

GST

CONSULT -II

only “TRANSMIS-

SION”

Reference page

Revision: July 2005 2005 Maxima

AT-5

Page 20

INDEX FOR DTC

DTC No. Index ECS00A0I

NOTE: If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to

AT-83

DTC

OBD-II Except OBD-II

CONSULT-II

GST

— P0500 VEH SPD SE/CIR-MTR AT-86

— P0613 TCM PROCESSOR AT-88 P0705 P0705 PNP SW/CIRC AT-90 P0710 P0710 ATF TEMP SEN/CIRC AT-95 P0711 P0711 FLUID TEMP SEN AT-100 P0717 P0717 TURBINE SENSOR AT-105 P0722 P0722 VHCL SPEED SEN-A/T AT-109

— P0726 ENG SPD INP PERFOR AT-113 P0731 P0731 A/T 1ST GR FNCTN AT-115 P0732 P0732 A/T 2ND GR FNCTN AT-118 P0733 P0733 A/T 3RD GR FNCTN AT-124 P0734 P0734 A/T 4TH GR FNCTN AT-130 P0735 P0735 A/T 5TH GR FNCTN AT-135 P0744 P0744 A/T TCC S/V FNCTN AT-141 P0745 P0745 PC SOL A(L/PRESS) AT-144 P0750 P0750 SHIFT SOL A AT-149 P0755 P0755 SHIFT SOL B AT-154 P0760 P0760 SHIFT SOL C AT-159 P0762 P0762 SFT SOL C STUCK ON AT-164 P0765 P0765 SHIFT SOL D AT-169 P0770 P0770 SHIFT SOL E AT-174 P0775 P0775 PC SOL B(SFT/PRS) AT-179 P0780 P0780 SHIFT AT-184 P0795 P0795 PC SOL C(TCC&SFT) AT-188 P0797 P0797 PC SOL C STC ON AT-193

— P0826 MANUAL MODE SWITCH AT-198 P0882 P0882 TCM POWER INPT SIG AT-204

— P1726 ELEC TH CONTROL AT-209 U1000 U1000 CAN COMM CIRCUIT AT-83

*1: These numbers are prescribed by SAE J2012.

CONSULT -II

only “TRANSMIS-

SION”

(CONSULT-II screen terms)

Items

Reference page

Revision: July 2005 2005 Maxima

AT-6

Page 21

PRECAUTIONS

PRECAUTIONS PFP:00001

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

ECS00A0J

The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used al ong with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes 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 necessary to service the system safely is included in the SRS and SB section of this Service Manual.

WARNING:

● To avoid rendering the SRS ino perative, whi ch could incr ease the risk of pe rsonal 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, inc luding incorrect removal and installation of the SRS, can lead to per-

sonal injury ca use d by unintentional activ atio n o f the s ys tem . F o r re moval of Spiral Cab le and Air Bag Module, see the SRS section.

● Do not use electrical test equ ipment o n any circu it related to the SRS unless in structed to in this

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

Precautions for On Board Diagnostic (OBD) System of A/T and Engine ECS00A0K

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 “OFF” and disconnect the negative battery cable 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 eras e the u nnecess ary mal function i nformatio n (repairs compl eted) from the TC M and

ECM before returning the vehicle to the custom er.

Revision: July 2005 2005 Maxima

AT-7

Page 22

PRECAUTIONS

Precautions for A/T Assembly or TCM Replacement ECS00A0L

● When replacing A/T assembly or TCM, refe r to the pattern table below and initialize TCM if necessary.

TCM INITIALIZATION PATTERNS

TCM A/T assembly Erasing EEPROM in TCM Remarks

Replaced with

new one

Not replaced

Replaced with

old one

NOTE:

“Old one” is the TCM or A/T assembly that has been used on other vehicles.

METHOD FOR TCM INITIALIZATION

1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to AT-75 , "CONSULT-I I SET TING PROCEDURE " .

2. Set the vehicle following the items listed below.

● Ignition switch “ON”.

● Selector lever “P” or “N” position.

● Engine not running.

● Vehicle speed is 0 km/h (0 MPH).

● Ignition voltage is more than 10.5V.

● Malfunction was not detected.

3. Touch “WORK SUPPORT”.

4. Touch “INITIALIZATION”.

5. Initialize TCM following the direction in display.

Not replaced

Replaced with

new or old one

Replaced with

new or old one

Not replaced

Replaced with

new or old one

Not required

Required

Not required because the EEPROM in TCM is in the default state.

Required because data cannot be conformed to previ ous data written in the EEPROM in TCM.

Revision: July 2005 2005 Maxima

AT-8

Page 23

PRECAUTIONS

Precautions ECS00A0M

● Before connecting or dis connecting the TCM harness con-

nector, turn ignition switch “OFF” and d isconnect ne gative battery cable. Because battery voltage is applied to TCM even if ignition switch is turned “OFF”.

● When connecting or disconnecting pin connectors i nto or

from TCM, take care not to dama ge pin terminals (bend or break). Make sure that there are not any ben ds or breaks on TCM pin terminal, when connecting pin connectors.

● Before replacing TCM, perform TCM input/output signal

inspection and make sure wheth er TCM functions properly or not. AT-72, "

TCM INSPECTION TABLE".

SEF289H

SEF291H

MEF040DA

● After performing each TROUBLE DIAGNOSIS, perform

“DTC (Diagnostic Trouble Code) CONFIRMATION PROCEDURE”. The DTC should not be displ ayed in the “DTC CONFIRMATION PROCEDURE” if the repair is completed.

SEF217U

● Always use the specified brand of A/T fluid. Refer to MA-9, "Fluids and Lubricants" .

● Use paper ra gs not cloth rags during work.

● After replacing the A/T fluid, dispose of the waste oil using the methods prescribed by law, ordinance, etc.

● Before proceed ing with dis assemb ly, thoroughly clean the outsid e of the tran saxle. It is important t o pre-

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

● Disassembly should be done in a clean work area.

Revision: July 2005 2005 Maxima

AT-9

Page 24

PRECAUTIONS

● Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere

with the operation of the transax le .

● Place disassembled pa rts 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 transaxle is disassembled.

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

● The valve bo dy co ntains precis io n parts and r equi r es ex tre me ca re w hen parts are rem ov ed an d s erv ic ed .

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

● Properly installed valves, sle ev e s, 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.

● After over haul, refill the transaxle with new ATF.

● When the A/T drain plug is remove d, only some of t he fluid is drai ned. O ld A/T flu id wil l remain i n torque

converter and ATF cooling system. Always follow the procedures under “Changing A/T Fluid” in the A T section when changing A/T fluid. Refer to AT-15, "

Changing A/T Fluid" , AT-15, "Checking A/T Fluid" .

Revision: July 2005 2005 Maxima

AT-10

Page 25

PRECAUTIONS

Service Notice or Precautions ECS00A0N

ATF COOLER SERVI CE

If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced, inspect and cl ean the A/T oil c ooler mounted in the radiator or replace the radi ator. Flush cooler lines us ing cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning procedure. For radiator replacement, refer to CO-12, "

RADIATOR" .

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 or the malfunction indicator lamp (MIL). Refer to the table on AT-75, "

● 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-41, " unnecessary blinking of the MIL.

● For details of OBD-II, refer to EC-49, "ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

● Certain systems and com ponents, especially those related to OBD , may use the n ew style slide-

locking type harness connector. For description and how to disconnect, refer to PG-62, "

NESS CONNECTOR" .

SELF-DIAG RESULT MODE" for the indicator used to display each self-diagnostic result.

HOW TO ERASE DTC" to complete the repair and avoi d

HAR-

Wiring Diagrams and Trouble Diagnosis ECS00A0O

When you read wiring diagrams, refer to the following:

● GI-13, "How to Read Wiring Diagrams".

● PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.

When you perform trouble diagnosis, refer to the following:

● GI-9, "How to Follow Trouble Diagnoses".

● GI-25, "How to Perform Efficient Diagnosis for an Electrical Incident".

Revision: July 2005 2005 Maxima

AT-11

Page 26

PREPARATION

PREPARATION PFP:00002 Special Service Tools ECS00A0P

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

Tool number (Kent-Moore No.) Tool name

— (J-34301-C) Oil pressure gauge set 1 — (J-34301-1) Oil pressure gauge 2 — (J-34301-2) Hoses 3 — (J-34298) Adapter 4 — (J-34282-2) Adapter 5 — (790-301-1230-A) 60° Adapter 6 — (J-34301-15) Square socket

KV311J0010 (J-45542) Adapter

AAT896

Description

Measuring line pressure

KV991J0060 (J-45404) Alignment tool

ST33290001 (J-34286) Puller

ST33400001 (J-26082) Drift

SCIA3019E

Adjusting park/neutral position (PNP) switch

SCIA3018E

● Removing oil pump ass em bly

● Removing thrust roller bearin g

a: 250 mm (9.84 in) b: 160 mm (6.30 in)

NT414

Installing differential side oil seals

a: 60 mm (2.36 in) dia. b: 74 mm (1.85 in) dia.

NT086

Revision: July 2005 2005 Maxima

AT-12

Page 27

PREPARATION

Tool number (Kent-Moore No.) Tool name

KV31102400 (J-34285 and J-34285-87) Clutch spring compressor

ST30720000 (J-25405) Drift

ST30612000 (J-25742-2) Drift

ST3127S000 (J-25765-A) Preload gauge 1 GG91030000 (J-25765-A) Torque wrench 2 HT62940000 (—) Socket adapter 3 HT62900000 (—) Socket adapter

KV40102500 (J-28815) Drift

NT423

NT115

NT073

NT124

Description

Removing and installing return springs

a: 320 mm (12.60 in) b: 174 mm (6.85 in)

● Installing oil seal

● Instal l ing tapered rol ler bearing

a: 77 mm (3.03 in) dia. b: 55.5 mm (2.185 in) dia.

Removing outer race and adjust shim

a: 62 mm (2.44 in) dia. b: 40 mm (1.57 in) dia.

Checking differential side bearing preloa d

ZZC0999D

ST33061000 (J-8107-2) Drift

ZZC0628D

KV38100500

● Removing taper ed roller bearing

● Removing manual val ve oi l seal

Installing tapered roller bearing (—) Drift

ZZC0809D

Revision: July 2005 2005 Maxima

AT-13

Page 28

PREPARATION

Tool number (Kent-Moore No.)

Description Tool name

KV40100621

Installing outer race and adjust shim (J-25273) Drift

ZZC1026D

ST30022000 (—) Drift

ZZC0255D

Commercial Service Tools ECS00A0Q

Tool name Description Power tool Loosening bolts and nuts

PBIC0190E

Puller Removing tapered roller bearing

a: 60 mm (2.36 in) dia.

b: 35 mm (1.38 in) dia.

NT077

Puller

NT411

Revision: July 2005 2005 Maxima

AT-14

Page 29

A/T FLUID

A/T FLUID PFP:KLE40

Changing A/T Fluid ECS00A0R

Refer to MA-22, "Chan gin g A/T Flu id " .

Checking A/T Fluid ECS00A0S

Refer to MA-21, "Checking A/T Fluid" .

Revision: July 2005 2005 Maxima

AT-15

Page 30

A/T CONTROL SYSTEM

A/T CONTROL SYSTEM PFP:31036 Cross-Sectional View ECS00A0T

SCIA2575E

1. Converter housing 2. 2nd brake 3. One-way clutch No. 2

4. Control valve assembly 5. Side cover 6. 1st and reverse brake

7. Forward clutch 8. Direct clutch 9. Transaxle case cover

10. B5 brake 11. Transaxle case 12. U/D clut ch

13. U/D brake 14. Final gear 15. Differential case

16. Output shaft 17. Counter driven gear 18. Counter drive gea r

19. Input shaft 20. Oil pump 21. One-way clutch No. 1

22. 2nd coast brake 23. Torque converter 24. Main rear planetary gear

25. Main front planetary gear 26. U/D rear planetary gear 27. U/D front planetary gear

Revision: July 2005 2005 Maxima

AT-16

Page 31

A/T CONTROL SYSTEM

Shift Mechanism ECS00A0U

CONSTRUCTION

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2576E

Revision: July 2005 2005 Maxima

AT-17

Page 32

A/T CONTROL SYSTEM

FUNCTION OF CLUTCH AND BRAKE

Clutch and brake components Abbr. Function Forward clutch 1 F/C Connect input shaft 20 to main rear internal gear 10 . Direct clutch 2 D/C Connect input shaft 20 to main sun gear 11 . U/D clutch 3 U/D.C Connect U/D sun gear 15 to U/D fron t planetary car rier 16 . 2nd coast brake 4 2nd C/B Lock main sun gear 11 . 2nd brake 5 2nd/B Lock counterclockwise rotation of main sun gear 11 . 1st and reverse brake 6 1st & R/B Lock main front internal gear 13 . U/D brake 7 U/D.B Lock U/D sun gear 15 . B5 brake 8 B5/B Lock U/D rear planetary carrier 18 . One-way clutch No. 1 9 O.C1 Lock counterclockwise rotation of main sun gear 11 , when 2nd brake 5 oper-

ations.

One-way clutch No. 2 10 O.C2 Lock counterclockwise rotation of main front internal gear 13 .

CLUTCH AND BAND CHART

Clutch Brake One-way clutch

Shift position

F/C

D/C2 U/D.C

2nd C/

2nd/B

1st &

R/B

U/D.B7B5/B8O.C19O.C2

Remarks

PARK

POSITION REVERSE

POSITION NEUTRAL

POSITION

1st

1 ⇔ 2

2nd

2 ⇔ 3

3rd

3 ⇔ 4

4th

4 ⇔ 5

5th

M5 5th

M4 4th

M3 3rd

M2 2nd

M1 1st

Automatic shift

1 ⇔ 2 ⇔ 3 ⇔

4 ⇔ 5

Locks in 5th

gear*

Locks in 4th

gear*

Locks in 3rd

gear*

Locks in 2nd

gear*

Locks in 1st

gear*

: Operates : In transition between applied and released.

*: Except when automated up/down shift control and up/down shift permission control are activated. Refer to AT-37, "

Revision: July 2005 2005 Maxima

AT-18

MANUAL MODE" .

Page 33

A/T CONTROL SYSTEM

POWER TRANSMISSION “N” position

Since both th e f orward clutch and the d ire ct clutch are rel ea se d, to rque from the inpu t s h aft drive is not tran smitted to the output shaft.

“P” position

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

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

● The parking pole linked with the selector lever meshes with the parking gear and fastens the output shaft

mechanically.

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2577E

Revision: July 2005 2005 Maxima

AT-19

Page 34

A/T CONTROL SYSTEM

“D” position 1st gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Main rear internal gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.

6. Main front small planetary pinion gear rotates itself counterclockwise.

7. Main front internal gear is going to rotates counterclockwise.

8. One-way clutch No. 2 operates. (Lock counte rclockwise rotation of main front internal ge ar.)

9. Main planetary carrier revolves clockwise due to reaction force of front small planetary pinion gear.

10. Counter drive gear rotates clockwise for main planetary carrier and one.

11. Counter driven gear rotates counterclockwise.

12. U/D front internal gear rotates counterclockwise for counter driven gear and one.

13. U/D front planetary pinion gear rotates itself counterclockwise.

14. U/D sun gear rotates clockwise.

15. U/D rear planetary pinion gear rotate s itself coun terclockwise.

16. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)

17. U/D rear internal gear rotates counterclockwise.

18. U/D front pla netary carri er and output shaft rotates cou nterclockwise for U/D rear internal gear and one.

19. Final gear clockwise.

● During deceleration, main front internal gear clockwise due to rotation itself clockwise of main front small

planetary pinion gear, but driving force loses due to free of one-way clutch No. 2. Therefore, engine brake

does not operate.

Revision: July 2005 2005 Maxima

AT-20

Page 35

A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2585E

Revision: July 2005 2005 Maxima

AT-21

Page 36

A/T CONTROL SYSTEM

“M1” position 1st gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Main rear internal gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion gear and one.

6. Main front small planetary pinion gear rotates itself counterclockwise.

7. Main front internal gear is going to rotates counterclockwise.

8. 1st and reverse brake operates. (Lock rotation of main front internal gear.)

9. Main planetary carrier revolves clockwise due to reaction force of front small planetary pinion gear.

10. Counter drive gear rotates clockwise for main planetary carrier and one.

11. Counter driven gear rotates counterclockwise.

12. U/D front internal gear rotates counterclockwise for counter driven gear and one.

13. U/D front planetary pinion gear rotates itself counterclockwise.

14. U/D sun gear rotates clockwise.

15. U/D rear planetary pinion gear rotate s itself coun terclockwise.

16. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)

17. U/D rear internal gear rotates counterclockwise.

18. U/D front pla netary carri er and output shaft rotates cou nterclockwise for U/D rear internal gear and one.

19. Final gear clockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

Revision: July 2005 2005 Maxima

AT-22

Page 37

A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2586E

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A/T CONTROL SYSTEM

“D”, “M2” positions 2nd gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Main rear internal gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.

6. 2nd brake and 2nd coast brake operates.

7. One-way clutch No. 1 operates. (Lock rotation of main sun gear .)

8. Main planetary carrier revolves clockwise due to re action force of front large planetary pinion gear.

9. Counter drive gear rotates clockwise for main planetary carrier and one.

10. Counter driven gear rotates counterclockwise.

11. U/D front internal gear rotates counterclockwise for counter driven gear and one.

12. U/D front planetary pinion gear rotates itself counterclockwise.

13. U/D sun gear rotates clockwise.

14. U/D rear planetary pinion gear rotate s itself coun terclockwise.

15. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)

16. U/D rear internal gear rotates counterclockwise.

17. U/D front pla netary carri er and output shaft rotates cou nterclockwise for U/D rear internal gear and one.

18. Final gear clockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

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A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t brake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2587E

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A/T CONTROL SYSTEM

“D”, “M3” positions 3rd gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Main rear internal gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.

6. 2nd brake and 2nd coast brake operates.

7. One-way clutch No. 1 operates. (Lock rotation of main sun gear .)

8. Main planetary carrier revolves clockwise due to re action force of front large planetary pinion gear.

9. Counter drive gear rotates clockwise for main planetary carrier and one.

10. Counter driven gear rotates counterclockwise.

11. U/D front internal gear rotates counterclockwise for counter driven gear and one.

12. U/D front planetary pinion gear rotates itself counterclockwise.

13. U/D brake operate. (Lock rotation of U/D sun gear.)

14. U/D fron t planetary carrier re volves counterc lockwise due to reaction force of U/D front pl anetary pinion gear.

15. U/D rear internal gear and output shaft rotates counterclockwise for U/D front planetary carrier and one.

16. Final gear clockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

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A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2588E

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A/T CONTROL SYSTEM

“D”, “M4” positions 4th gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Main rear internal gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself clockwise for rear planetary pinion and one.

6. 2nd brake and 2nd coast brake operates.

7. One-way clutch No. 1 operates. (Lock rotation of main sun gear .)

8. Main planetary carrier revolves clockwise due to re action force of front large planetary pinion gear.

9. Counter drive gear rotates clockwise for main planetary carrier and one.

10. Counter driven gear rotates counterclockwise.

11. U/D front internal gear rotates counterclockwise for counter driven gear and one.

12. U/D clutch operate. (Connect U/D sun gear to U/D front planetary carrier.)

13. U/D front planetary pinion gear cannot rotate itself, and U/D unit rotates counterclockwise as one.

14. Output shaft rotates counterclockwise for U/D unit and one.

15. Final gear clockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

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AT-28

Page 43

A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U /D cl ut ch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2592E

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A/T CONTROL SYSTEM

“D”, “M5” positions 5th gear

1. Input shaft rotates clockwise.

2. Forward clutch operates. (Connect input shaft to main rear internal gear.)

3. Direct clutch operates. (Connect input shaft to main sun gear.)

4. Main rear planetary pinion gear cannot rotate itself, and main rear planetary unit rotates clockwise as one.

5. Main front large planetary pinion gear cannot rotate itself for main rear planetary pinion gear and one, and main front planetary unit rotates clockwise as one.

6. Counter drive gear rotates clockwise for main front planetary unit and one.

7. Counter driven gear rotates counterclockwis e.

8. U/D front internal gear rotates counterclockwise for counter driven gear and one.

9. U/D clutch operate. (Conn ect U/D sun gear to U/D front planetary carrier.)

10. U/D front planetary pinion gear cannot rotate itself, and U/D unit rotates counterclockwise as one.

11. Output shaft rotates counterclockwise for U/D unit and one.

12. Final gear clockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

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A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2593E

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A/T CONTROL SYSTEM

“R” position

1. Input shaft rotates clockwise.

2. Direct clutch operates. (Connect input shaft to main sun gear.)

3. Main sun gear rotates clockwise.

4. Main rear planetary pinion gear rotates itself clockwise.

5. Main front large planetary pinion gear rotates itself counterclockwise for rear planetary pinion gear and one.

6. Main front small planetary pinion ge ar rotates itself clockwi s e.

7. 1st and reverse brake operates. (Lock rotation of main front internal gear.)

8. Main planetary carrie r revolv es co unter cloc kwise due to reacti on fo rce of fr ont small pl anet a ry pini on gea r.

9. Counter drive gear rotates counterclockwise for main planetary carrier and one.

10. Counter driven gear rotates clockwise.

11. U/D front inter nal gear rotates clockwise for counter driven gear and one.

12. U/D front planetary pinion gear rotates itself clockwise.

13. U/D sun gear rotates counterclockwise.

14. U/D rear planetary pinion gear rotates itself cloc kwise.

15. B5 brake operate. (Lock rotation of U/D rear planetary carrier.)

16. U/D rear internal gear rotates clockwise.

17. U/D front pla netary carri er and output shaft rotates clo ckwise for U/D rear internal gear and one.

18. Final gear counterclockwise.

● During deceleration, driving force i s connected to input shaft direct ly without one-w ay clutch. Th erefore,

engine brake operates.

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A/T CONTROL SYSTEM

1. F orwar d cl ut ch 2. Direct clutch 3. U / D clu tch

4. 2 nd coas t br ake 5. 2nd brake 6. 1st and reverse brake

7. U/D bra ke 8. B5 brake 9. One-way clutch No. 1

10. One-way clu tch No . 2 11. Mai n sun gear 12. Main planetary carrier

13. Main front interna l gea r 14. Main rear internal gear 15. U/D sun gear

16. U/D front planetary carrie r 17. U/D front internal gear 18. U/D rear pla netary carr ier

19. U/D rear internal gear 20. Input shaft 21. Counter drive gear

22. Counter driven gear 23. Output shaft 24. Parking gear

25. Parking pawl

SCIA2594E

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A/T CONTROL SYSTEM

TCM Function ECS00A0V

The function of the TCM is to:

● Receive input signals sent fr om various switches 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 transaxle senses vehicle operating conditions through vario us sensors or sign als. It always controls the optimum shift position and reduces shifting and lock-up shocks.

SENSORS (or SIGNAL)

PNP switch Throttle angle signal Throttle position signal Engine speed signal Engine torque signal A/T fluid temperature sensor Revolution sensor Turbine revolution sensor Vehicle speed signal Manual mode switch signal Stop lamp swit ch si gna l

Shift control Line pressure control Lock-up control Engine brake control Timing control Fail-safe control Self-diagnosis CONSULT-II communication line CAN communication line On board diagnosis

TCM

ACTUATORS

Shift solenoid valve A Shift solenoid valve B Shift solenoid valve C Shift solenoid valve D Shift solenoid valve E Pressure control solenoid valve A Pressure control solenoid valve B Pressure control solenoid valve C A/T CHECK indicator lam p

CONTROL SYSTEM DIAGRAM

WCIA0445E

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A/T CONTROL SYSTEM

Input/Output Signal of TC M ECS00A0W

Line

Control item

Throttle angle signal Throttle position signal

Revolution sensor XXXXXXX Turbine revolution sensor X X X X X X

Vehicle speed signal MTR Engine speed signals Engine torque signals

Input

PNP switch XXXXXX Manual mode switch X X X X X Stop lamp swit ch si gna l

A/T fluid temperature sensor XXXXXX

ASCD

TCM power supply voltage signal X X XXXXX Shift solenoid valve A/B/C/D/E X X X X Pressure control solenoid valve AXXXXXXX

Out-

Pressure control solenoid valve B X X X X X

put

Pressure control solenoid valve C X X X X Self-diagnostics table

*1: Spare for revolution sensor *2: Spare for throttle angle 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 error. *5: CAN communications.

Operation signal Overdrive cancel signal

(*5)

(*1) (*5)

(*5)

pressure

control

XXXXXXX

(*2)

XXXX XX

XXXXX X

Vehicle

speed

control

(*2)

XXX XX

XXX

XXX X X X

Shift

control

Lock-up

control

Engine

brake

control

(*2)

Fail-safe

function

(*3)

Self-diag-

nostics

function

(*4)

CAN Communication ECS00A0X

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) al lowi ng a high rate of in forma tio n trans missi on wi th less w iring . Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-7, "

Revision: July 2005 2005 Maxima

CAN COMMUNICATION" .

AT-35

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A/T CONTROL SYSTEM

Line Pressure Control ECS00A0Y

● The pressure control solenoid valve A controls linear line pressure by control signal from TCM and line

pressure for clutches and brakes to reduce shift shock.

● This pressure control solenoid valve A controls the pressure regulator valve as the signal pressure and

adjusts the pressure o f the op eratin g oil d isch arged from th e oil p ump to th e line press ure mo st ap propri ate to the driving state.

SCIA2605E

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

In order to obtain the m ost approp riate li ne pressure charac teristic to meet the cu rrent drivi ng state, the TCM controls the pressure control solenoid valve A cur rent and thus controls the line pressure.

Shift Control ECS00A0Z

The clutch pre ssure control solenoid is c ontrolled by the signals f rom the switches and sensors . Thus, the clutch pressure is adjusted to be appropriate to th e engine load state and vehicle dri ving state. It becomes possible to fin el y con tr ol the c lu tch hy dr a uli c p r essu r e wi t h hi gh p rec is io n an d a smo ot h er s hi f t ch an ge c har acteristic is attained.

SCIA2610E

Basically TCM programmed for economy mode, but TCM changes to several shift schedule automatically according to s pecified condit ion.

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A/T CONTROL SYSTEM

SPECIAL SHIFT MODE Upslope Mode

When TCM detects upslope from load of engine torque and decrease of acceleration, this mode changes shift points in high-speed side according to the upslope de gree and avoids busy shift of A/T.

Downslope Mode

When TCM detects downsl ope from increase of accelerat ion with accelerator full clos e, this mode operates moderate engine brake by changing shift points in high-speed side.

Hot Mode Control

This control lowers ATF temperature by changing shift points when the temperature is extremely high.

MANUAL MODE

Driver oneself can s ele c t f avorite gear and enjoy sports drivin g of manual transmissio n se ns e by sh ifti ng lev er from D position to manual mode po si tio n an d + (up shift) / - (d own s hi ft). But lock-up con trol i s op era te d a utomatically. Shift control is operated again by shifting from manual gear position to D position. Following control is operated when manual mode.

Automated Up Shift Control

In order to avoid the o ver speed of the eng ine, up shift operate automatically, if it becomes over a cons tant vehicle speed.

Automated Down Shift Control

In order to avoid the stall of the engine, down shift operate automatically, if it becomes under a constant vehicle speed.

Up Shift Permission Control

In order to avoid the stall of the engine, up shift is done only at over a constant vehicle speed.

Down Shift Permission Control

In order to avoid the over speed of the engine, down shift is done only at under a constant vehicle speed.

UP/DOWN SHIFT LEARNING CONTROL

This control lea rns th e pr essu re to ea ch c lutch or brak e i n order to redu ce sh ift ing sh ock at each s hifti ng (Up, Down, Manual down, Coast down).

N-D SHIFT CONTROL

This control improve s the N-D sh ift quality due to controll in g lin e pre ss u re so len oi d va lv e ac co rd ing to forward clutch piston s tro ke l ea rne d in N-D shif t lea r ning co nt ro l an d ap pl yi ng bes t hy dra ul ic p res sure t o for wa r d cl ut ch at N-D shift.

N-D SHIFT LEARNING CONTROL

This control learns the forward clutch hydraulic pressure due to monitoring a forward clutch engaging time and a rotation change rate.

N-R SHIFT CONTROL

This control imp roves the N- R shift qualit y due to cont rolling shif t pressure so lenoid valve according to direct clutch piston stroke learned in N-R shift learning control and applying best hydraulic pressure to direct clutch at N-R shift.

N-R SHIFT LEARNING CONTROL

This control learns the direct clutch hydraulic pressure due to monitoring a direct clutch engaging time and a rotation change rate.

TORQUE REDUCTION CONTROL

This control improves the shift quality due to sending torque reduction request signal from TCM to ECM and cutting engine torque increase of shift at N-D shift, N-R shift and 1 ⇔ 2 ⇔ 3 ⇔ 4 ⇔ 5. If accelerator p edal is depressed rapi dly, this control establish es the upper limit valu e of engine torque an d avoids engine flare at 2 ⇔ 3, 3 ⇔ 4 and 4 Þ 2 of clutch to clutch shift.

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A/T CONTROL SYSTEM

Lock-Up Control ECS00A10

The torque conve rter clutch piston in the torque conv erter is engaged to eliminate torqu e converter slip to increase power transmission efficiency . The torque converter clutch control valve operation is controlled by the pressure control solenoid valve C, which is controlled by a signal from TCM, and the torque converter clutch control valve engages or releases the torque converter clutch piston.

Lock-up Operation Condition Table

Selector lever D position M5 position M4 position M3 position Gear position 5 4 5 4 3 Lock-up × – ××× Slip lock-up ××–––

TORQUE CONVERTER CLUTCH CONTROL VALVE CONTROL Lock-up Contr ol System Diagram

SCIA2612E

Lock-up Released

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

pressure control solenoid valve C and the loc k -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

pressure control solenoid valve C and lock-up apply pressure is generated. In this way, the torque converter clutch piston is pressed and coupled.

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A/T CONTROL SYSTEM

SMOOTH LOCK-UP CONTROL

When shifting fro m the lock -up released state to the lock-up ap plied state, the current ou tput to the pressure control solenoid valve C is controlled with the TCM. In this way, when shifting to the lock-up applied state, 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 pressure control solenoid valve C is varied to steadily increase the

pressure control solenoid valve C 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 pressure control solenoid valve C current is controlled with the TCM to put 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 l ow speed and when the accelerator has a low degree of opening.

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

ON BOARD DIAGNOSTIC (OBD) SYSTEM PFP:00028 Introduction ECS00A11

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-diagnos is ind ic at ed by th e A/ T CHECK indicator lamp. Th e m alf un ction is stored in the TCM memory. The detected items are overlapped with OBD-II self-diagnostic items. For detail, refer to AT-75, "

SELF-DIAG RESULT MODE" .

OBD-II Function for A/T System ECS00A12

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 o f the MIL (malf unction indicator lamp) on the instrument panel. Sensors, switches and solenoid valves are used as sensing elements. 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 ECS00A13

ONE TRIP DETECTION LOGIC

If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfun ction will be stored in the ECM memory as a DTC. The TCM is not provided with s uch 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) ECS00A14

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, P0710 etc.

These DTC are prescribed by SAE J2012. (CONSULT-II also displays the malfunctioning com ponent or system.)

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

● Output of the diagnostic trouble c ode indica tes that the in dicated circ uit 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 ti me s the vehicle was driven 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-54, "

FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA" .

Only one set of freeze frame data (either 1st trip freeze frame data or 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

2 Except the above items (I ncludes A/T related items) 3 1st trip freeze fr ame data

Freeze frame data

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

Both 1st trip free ze frame data a nd f reeze fr ame data (al ong w ith t he D TC) are clea red w hen the ECM m emory is erased.

HOW TO ERASE DTC

The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE a s 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 CONSUL T-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-50, "

● Diagnostic trouble codes (DTC)

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

● Freeze frame data

EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS" .

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

● 1st trip freeze frame data

● System rea diness test (SRT) codes

● Test valu es

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 swit ch stays “ON ” after repair work, be sure t o turn ig nitio n switc 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 ECM will be erased. )

WCIA0405E

HOW TO ERASE DTC (WITH GST)

1. If the ignition swit ch stays “ON ” after repair work, be sure t o turn ig nitio n switc h “OFF” onc e. Wait at least 10 seconds and t hen turn it “ON” (engine stopped) again.

2. Erase DTC with TCM. Refer to AT-82, "

Erase self-diagnos is" . (The engin e wa rm-up ste p can b e ski pped

when performing the diagnosis only to erase the D TC.)

3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-143, "

Generic Scan Tool (GST)

Function" .

HOW TO ERASE DTC (NO TOOLS)

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

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AT-42

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ON BOARD DIAGNOSTIC (OBD) SYSTEM

1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait at least 10 seconds and then turn it “ON” (engine stopped) again.

2. Erase DTC with TCM. Refer to AT-82, "

Erase self-diagnosis" . (The engine warm-up step ca n be sk ippe d

when performing the diagnosis only to erase the DTC.)

3. Erase DTC with ECM. Refer to EC-62, "

How to Erase DTC" .

Malfunction Indicator Lamp (MIL) ECS00A15

DESCRIPTION

The MIL is located on the instrument panel.

1. The MIL will li ght up whe n th e ign ition swi tch is tur ned “ON” wit hout the engine running. This is a bulb check.

● If the MIL does not light up, refer to DI-41, "WARNING LAMPS" ,

or see EC-64, "

2. When the engin e is started, the MIL should go off. If the MIL remains on, the on board diagnostic system has detected an engine system malfunction.

Malfunction Indicator Lamp (MIL)" .

SEF217U

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TROUBLE DIAGNOSIS

TROUBLE DIAGNOSIS PFP:00004 DTC Inspection Priority Chart ECS00A16

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

NOTE: If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to

AT-83

Priority Detected items (DTC)

1 U1000 CAN communication l in e 2 Except above

Fail-Safe ECS00A17

The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is a malfunction in a main electronic control input/output signal circuit. In fail-safe mo de, a d riving cond it ion is sele cted acco rding to the m alfu nctio ning loca tion, a nd lin e pr ess ure is set at the maximum. For this reason, the customer will be subjected to uncomfortable “slipping” or “poor acceleration” of the vehicle. In that case, handle according to the “diagnostics flow ” (Refer to AT-48

FAIL- SAFE FUNCTION

If any malfunction occurs in a sensor or solenoid, this function controls the A/T to make driving possible.

NOTE: Line pressure i s set at the maximum in fail-safe mode . Although gear position differs depending on the type of fail-safe modes, CONSULT-II indicates “5th”.

DTC Malfunction items Fail-safe* P0500 Vehicle speed signal No learning control. P0613 TCM processor Fail-safe mode 4 P0705 PNP switch Fail-safe mode 4

P0710 ATF temperature sensor circuit

P0711 ATF temperature sensor function

P0717 Turbine revolution sensor Fail-safe mode 1

P0722 Revolution sensor

P0726

P0731 1st gear function No 1st gear, no control for N-D shift. P0732 2nd gear function

P0733 3rd gear function

P0734 4th gear function

P0735 5th gear function

P0744 Lock-up function Fail-safe mode 1

P0745 Pressure control solenoid valve A

Engine speed signal input circuit performance

Sets ATF temperature data at 111°C (232°F) after 15 minutes. Inhibits lock-up control.

Uses vehicle speed signal from combination meter as a substitute. Inhibits learning control.

Fail-safe mode 1

Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutc h slipping.

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TROUBLE DIAGNOSIS

DTC Malfunction items Fail-safe*

Any one of fail-safe modes

P0750 Shift solenoid valve A

● Fail-safe mode 1

● Fail-safe mode 7. Also, ECM restricts input torque to preven t clut ch

slipping.

Any one of fail-safe modes

P0755 Shift solenoid valve B

● Fail-safe mode 1

● Fail-safe mode 8

Any one of fail-safe modes

P0760 Shift solenoid valve C

P0762 Shift solenoid valve C stuck ON

● Fail-safe mode 2

● Fail-safe mode 5

● Fail-safe mode 9

Fail-safe mode 2. Also, ECM restricts engine torque to prevent clutch slipping.

Any one of fail-safe modes

P0765 Shift solenoid valve D

● Fail-safe mode 1

● Fail-safe mode 10. Also, ECM restricts input torq ue to preve nt clutch

slipping.

Any one of fail-safe modes

● Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch

P0770 Shift solenoid valve E

slipping.

● Fail-safe mode 6. Also, ECM restricts engine torque to prevent clutch

slipping.

P0775 Pressure control solenoid valve B Fail-safe mode 3

P0780 Shift function

Fail-safe mode 1. Also, ECM restricts input torque to prevent clutch slip-

ping. P0795 Pressure control solenoid valve C Fail -sa fe mode 1 P0797 Pressure control solenoid valve C stuck ON Fail-safe mode 1 P0826 Manual mode switch No manual m ode control. P0882 TCM power input signal Fail-safe mode 1

● The accelerator opening angl e is cont roll ed by EC M accor di ng to a

P1726 Electric throttle control

pre-determined accelerator angle to mak e drivi ng pos si bl e.

● No lock-up, no learning control.

Any one of fail-safe modes

● Fail-safe mode 1

U1000 CAN communication circuit

● Fail-safe mode 1. Also, ECM restricts engine torque to prevent clutch

slipping.

● No learning control.

● No lock-up, no learning control, no special shift mode control.

*: For fail-safe modes 1 to 10, refer to AT -45, "Fail-safe mode list" .

Fail-safe mode list

Fail-safe mode Selector lever

D position

Fail-safe mode 1

Manual mode: + (up shift) Manual mode: - (down shift) 2nd OFF OFF ON OFF OFF OFF OFF OFF

Gear

position

ABCDEABC

4th OFF OFF OFF OFF OFF OFF OFF OFF

Shift solenoid valve

R position Reverse OFF OFF OFF OFF ON OFF OFF OFF

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AT-45

Pressure control sole-

noid valve

Page 60

TROUBLE DIAGNOSIS

Fail-safe mode Selector lever

D position

Fail-safe mode 2 (CONSULT-II displays “8”)

Fail-safe mode 3

Fail-safe mode 4

Fail-safe mode 5

Fail-safe mode 6

Fail-safe mode 7

Fail-safe mode 8 (CONSULT-II displays “1”)

Fail-safe mode 9 (CONSULT-II displays “8”)

Fail-safe mode 10 (CONSULT-II displays “6”)

*1: CONSUL T-II indicate s “5th”. *2: Reverse gear ratio difference (Gear ratio: 3.342) *3: 3rd gear ratio difference (Gear ratio: 2.301)

Manual mode: + (up shift) Manual mode: - (down shift) 2nd OFF OFF ON OFF OFF OFF OFF O FF R position Reverse OFF OFF ON OFF ON OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 2nd OFF OFF ON OFF ON O FF OFF OFF R position Reverse OFF OFF OFF OFF ON OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF R position Reverse OFF OFF OFF OFF OFF OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF R position Reverse OFF OFF OFF OFF ON OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 2nd OFF OFF ON OFF O FF OFF OFF OFF R position Reverse OFF OFF ON OFF OFF OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 2nd ON OFF ON O FF OFF OFF OFF OFF

R position D position

Manual mode: + (up shift) Manual mode: - (down shift) R position Reverse OFF ON OFF OFF ON OFF OFF OFF

D position Manual mode: + (up shift) Manual mode: - (down shift) 4th OFF OFF OFF OFF OFF OFF OFF OFF R position Reverse OFF OFF OFF OFF ON OFF OFF OFF D position Manual mode: + (up shift) Manual mode: - (down shift) 3rd OFF OFF ON ON OFF OFF OFF OFF

R position

Gear

position

3rd OFF OFF ON ON OFF OFF OFF OFF

4th OFF OFF OFF OFF OFF OFF OFF OFF

4th OFF OFF OFF OFF OFF OFF O FF OFF

4th OFF OFF OFF OFF OFF OFF OFF OFF

4th OFF OFF OFF OFF OFF OFF O FF OFF

4th ON OFF OFF OFF OFF OFF OFF OFF

Reverse

5th OFF ON OFF OFF OFF OFF OFF OFF

(2nd)

4th OFF OFF O FF ON OFF OFF OFF OF F

Reverse

ABCDEABC

ON OFF ON ON OFF OFF OFF OFF

OFF ON ON OFF OFF OFF OFF OFF

OFF OFF ON ON OFF OFF OFF OFF

Shift solenoid valve

Pressure control sole-

noid valve

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TROUBLE DIAGNOSIS

How To Perform Trouble Diagnosis For Quick and Accurate Repair ECS00A 18

INTRODUCTION

The TCM receives a signal from the vehicle speed signal, throttle position sensor (accelerator pedal position sensor) or PNP s witch and provid es shift control or lock-up control via A/T solenoid valves. The TCM also communicates wit h the ECM by means of a signal sent from sensing el ements used with the OBD-rel ated parts of the A/T system for m alfunction-diagno stic purposes. The TCM is capable of diagnosing malfunctioning parts while the ECM can store malfunctions in its memory. Input and output signals must always be correct and stable in the operation of th e A/T sy stem. T he A/T system m ust be in good oper ating condition and be free of valve seizure, solenoid valve malfunction, etc.

It is much more difficult to diagnose an error that occurs intermittently rather than co ntinuously. 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 check only may not find the cause of the errors. A road test with CONSULT-II (or GST) or a c ircuit tester connected shou ld be performed. F o llow the AT-48, "

WORK FLOW" .

Before undertaking actual checks, take a few 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 conditions they occur. A “Diagnostic Worksheet” as shown on the example (Refer to AT-49

) should be used. Start your diagnosis by looking for “conventional” errors first. This will help troubleshoot driveability errors on an electronically controlled engine vehicle. Also check related Service bulletins.

SAT631IB

SAT632I

SEF234G

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TROUBLE DIAGNOSIS

WORK FLOW

A good understanding of the malfunction conditions can make troubleshooting faster and more accurate. In general, each customer feels differently about a malfunction. It is important to fully understand the symptoms or conditions for a customer complaint. Make good use of the two sheets provided, “Information From Customer” (Refer to AT-49 Worksheet” (Refer to AT-49

), to perform the best troubleshooting possible.

Work Flow Chart

) and “Diagno stic

SCIA0501E

*1. AT-49 *2. AT-49 *3. AT-44 *4. AT-54 *5. AT-54, AT-56 *6. AT-57 *7. AT-74 *8. AT-40 *9. AT-43 *10. AT-83 *11. AT-209 *12. AT-210 *13. AT-229 *14. AT-64 *15. AT-41 *16. AT-83 *17. AT-209 *18. EC-50

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TROUBLE DIAGNOSIS

DIAGNOSTIC WORKSHEET Informatio n From Customer

KEY POINTS

● WHAT..... Vehicle & A/T model

● WHEN..... Date, Frequencies

● WHERE..... Road conditions

● HOW..... Operating conditions, Symptoms

Customer name MR/MS Model & Year VIN Trans. Model Engine Mi le age Incident Date Manuf. Date In Service Date Frequency ❏ Continuous ❏ Intermittent (times a day) Symptoms ❏ Vehicle does not move. (❏ Any position ❏ Particular position)

❏ No up-shi ft (❏ 1st → 2nd ❏ 2nd → 3rd ❏ 3rd → 4th ❏ 4th → 5th) ❏ No down-shift (❏ 5th → 4th ❏ 4th → 3rd ❏ 3rd → 2nd ❏ 2nd → 1st) ❏ Lock-up malfunction ❏ Shift point too high or too low. ❏ Shift shock or slip (❏ N → D ❏ Lock-up ❏ Any drive position) ❏ Noise or vibration ❏ No kick down ❏ No pattern select ❏ Others

() Malfunction indicator lamp (MIL) ❏ Cont inuously lit ❏ Not lit A/T Check indicator lamp ❏ Continuously lit ❏ Not lit

Diagnostic Worksheet Chart

1 ❏ Read the item on cautions concerning fail-safe and understand the customer's complaint. AT-44

❏ A/T fluid inspection

❏ Stall test, time lag test and line pressure test

❏ Leak (Repair leak location.) ❏ State ❏ Amount

❏ Stall test

❏ Engine ❏ Torque converter one-way clutch ❏ Line pressure is low ❏ Forward clutch ❏ Direct clutch ❏ 1st and reverse brake

❏ Time lag test

❏ Line pressure is low ❏ Forward clutch ❏ Direct clutch ❏ 1st and reverse brake ❏ One-way clutch No. 2

❏ Line pressure inspection - Suspected part:

❏ B5 brake ❏ One-way clutch No. 2 ❏ Oil pump ❏ Oil strainer ❏ Oil leak for each range circuit

❏ Oil pump ❏ Oil strainer ❏ Oil leak for “D” position circuit ❏ Oil leak for “R” position circuit

AT-54

AT-54 56

, AT-

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TROUBLE DIAGNOSIS

❏ Perform all road tests and enter checks in required inspection i t ems. AT-57

Check before engine is started

❏ The A/T CHECK Indicator Lamp does come on. AT-210 . ❏ Perform self-diagnostics. Enter checks f or detec ted item s.

❏ Vehicle speed sensor·MTR. AT-86 ❏ TCM processor. AT-88 ❏ PNP switch. AT-90 ❏ A/T fluid temperature sensor circuit. AT-95 ❏ A/T fluid temperature sensor performance. AT-100 ❏ Turbine revolution sensor circuit. AT-105 ❏ Vehicle speed sensor·A/T (revolution sensor) circuit. AT-109 ❏ Engine speed input circuit performance. AT-113 ❏ 1st gear function. AT-115 ❏ 2nd gear function. AT-118 ❏ 3rd gear function. AT-124 ❏ 4th gear function. AT-130 ❏ 5th gear function. AT-135

4-1.

Idle inspection ❏ Engine Cannot Be Started in “P” and “N” Position. AT-212 .

4-2.

4-3.

❏ In “ P” Position, Vehicle Moves When Pushed. AT-212 ❏ In “N” Position Vehicle Moves. AT-213 ❏ Large Shock “N ” to “D” Position. AT-214 ❏ Vehicle Does Not Creep Backward In “R” Position. AT-215 ❏ Vehicle does Not Creep Forward In “D” Position. AT-216

Driving tests Part 1

❏ Vehicle Cannot Be Started From D1. AT-217 ❏ A/T Does Not Shift: D1 → D2. AT-217 ❏ A/T Does Not Shift: D2 → D3. AT-218 ❏ A/T Does Not Shift: D3 → D4. AT-219 ❏ A/T Does Not Shift: D4 → D5. AT-220 ❏ A/T Does Not Perform Lock-up. AT-221 ❏ A/T Does Not Hold Lock-up Condition. AT-222 . ❏ Lock-up Is Not Released. AT-223

❏ Lock-up function. AT-141 ❏ Shift function. AT-184 ❏ Pressure control solenoid valve A. AT-144 ❏ Pressure control solenoid valve B. AT-179 ❏ Pressure control solenoid valve C. AT-188 ❏ Shift solenoid valve A. AT-149 ❏ Shift solenoid valve B. AT-154 ❏ Shift solenoid valve C. AT-159 ❏ Shift solenoid valve D. AT-169 ❏ Shift solenoid valve E. AT-174 ❏ Pressure control solenoid valve C stuck O N . AT-193 ❏ Shift solenoid valve C stuck ON. AT-164 ❏ Manual mode switch circuit. AT-198 ❏ TCM power input signal. AT-204 ❏ Electric throttle control system. AT-209 ❏ CAN communication. AT-83 ❏ Battery ❏ Other

. . . .

. .

. . .

. .

. . . . .

AT-58

AT-60

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TROUBLE DIAGNOSIS

Part 2

❏ Vehicle Cannot Be Started From D1. AT-217 . ❏ A/T Does Not Shift: D1 → D2. AT-217 ❏ A/T Does Not Shift: D2 → D3. AT-218 ❏ A/T Does Not Shift: D3 → D4. AT-219

Part 3

❏ Cannot Be Changed To Manual Mode. AT-224 . ❏ A/T Does Not Shift: 5th gear → 4th gear. AT-225 ❏ A/T Does Not Shift: 4th gear → 3rd gear. AT-226 ❏ A/T Does Not Shift: 3rd gear → 2nd gear. AT-226 ❏ A/T Does Not Shift: 2nd gear → 1st gear. AT-227 ❏ Vehicle Does Not Decelerate By Engine Brake. AT-228 ❏ Perform self-diagnostics Enter checks for detec ted item s.

44-3

5 6 ❏ Perform all road tests and enter the checks again for the required items. AT-57

8 ❏ Erase the results of the self-diagnost ic s from the TCM . AT-82

❏ Inspect each system for items found to be NG in the sel f -diagnostics and repair or replace the malfunction parts.

❏ For any remaining NG items, perform the “diagnostics procedure” and repair or replace the malfunction parts. See the chart for diagnostics by symptoms . (This chart al so contains other symptoms and inspection procedures.)

❏ Engine speed input circuit performance. AT-113 ❏ 1st gear function. AT-115 ❏ 2nd gear function. AT-118 ❏ 3rd gear function. AT-124 ❏ 4th gear function. AT-130 ❏ 5th gear function. AT-135 ❏ Lock-up function. AT-141 ❏ Shift function. AT-184 ❏ Pressure control solenoid valve A. AT-144 ❏ Pressure control solenoid valve B. AT-179 ❏ Pressure control solenoid valve C. AT-188 ❏ Shift solenoid valve A. AT-149 ❏ Shift solenoid valve B. AT-154 ❏ Shift solenoid valve C. AT-159 ❏ Shift solenoid valve D. AT-169 ❏ Shift solenoid valve E. AT-174 ❏ Pressure control solenoid valve C stuck ON. AT-193 ❏ Shift solenoid valve C stuck ON. AT-164 ❏ Manual mode switch circuit. AT-198 ❏ TCM power input signal. AT-204 ❏ Electric throttle control syst em . AT-209 ❏ CAN communication. AT-83 ❏ Battery ❏ Other

. . .

. .

. . . .

. .

. . . . . .

AT-61

AT-62

AT-64

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TROUBLE DIAGNOSIS

A/T Electrical Parts Location ECS00A19

WCIA0446E

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TROUBLE DIAGNOSIS

Circuit Diagram ECS00A1A

BCWA0296E

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TROUBLE DIAGNOSIS

Inspections Before Trouble Diagnosis ECS00A1B

A/T FLUID CHECK Fluid leakage and fluid level check

● Inspect for fluid leakage and check the fluid level. Refer to MA-21, "Checking A/T Fluid" .

Fluid condition check

Inspect the fluid condition.

Fluid status Conceivable Cause Requi r ed O per ation

Replace the A/T fluid and check the Varnished (viscous varnish state)

Milky white or cloudy

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 A/T fluid. Replenish if necessary.

3. Switch of A/C and light etc. are off.

Clutch, brake scorched

Water in the fluid Unusual wear of

sliding parts within A/T

A/T main unit and the vehicle for malfunctions (wire harnesses, cooler pipes, etc.)

Replace the A/T fluid and check for places where water is getting in.

Replace the A/T fluid and check for improper operation of the A/T.

SAT638A

4. Securely engage the parking brake so that the tires do not turn.

5. Engine start, apply foot brake, and place selector lever in “D” position.

6. While holding down the foot brake, gradually press down the accelerator pedal.

7. Quickly read off the stall speed, then q uickly remove your foot from the accelerator pedal.

CAUTION:

Do not hold down the accelerator pedal for more than 5 seconds during this test.

8. Move the selector lever to the “N” position.

9. Cool down the A/T fluid.

SAT647B

SAT513G

SAT514G

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TROUBLE DIAGNOSIS

CAUTION:

Run the engine at idle for at least one minute.

10. Repeat step 5 through 9 with selector lever in “manual mode” and “R” positions.

Stall speed: 2,430 - 2,730 rpm

Judgement stall test

Selector lever position

D, M R

Stall rotation

O: Stall speed within standard value position H: Stall speed higher than standard value L: Stall speed lower than standard value

Possible cause

● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator

valve malfunction)

● Forward clutch (slipping)

● One-way clutch No . 2

● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator

valve malfunction)

● Direct clutch (slipping)

● 1st and reverse brake (slipping)

● Engine or torque converter one-w ay cl ut ch

● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator

valve malfunction)

● B5 brake (slipping)

● Oil pump

● Oil strainer (clogging)

● Oil leak for each range circuit

TIME LAG TEST Time lag 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). Check the amount of A/T fluid. Replenish if necessary.

3. Switch of A/C and light etc. are off.

4. Securely engage the parking brake so that the tires do not turn.

5. Engine sta rt, apply foot brake.

6. Measure time lag by using stopwatch from moment when shift lever is shifted in “N” to “D” po sition an d “N” to “R” posi tion until moment slightl y sh oc k can be felt.

CAUTION:

● Make sure to take 3 measurement and take the average

value.

● Make sure to keep interval for more than one minute

between time lag tests. (That purpose is to remove clutch/brake pressure was left unfinished.)

SAT647B

SAT513G

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AT-55

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TROUBLE DIAGNOSIS

Time lag:

“N” to “D” position: Less than 0.7 sec. “N” to “R” position: Less than 1.2 sec.

Judgement time lag test

Result of time lag test Possible cause

● Line pressure is low (pressure control solenoid valve A malfunction, primary regulator

valve malfunction)

Longer than standards “N” to “D” position

Longer than standards “N” to “R” position

LINE PRESSURE TEST Line pressure test port

Location of line pressure test port is show in the figure.

● Forward clutch (slipping)

● One-way clutch No. 2

● Oil leak for “D” range circuit

● Line pressure is low

● Direct clutch (slipping)

● 1st and reverse brake (slipp ing )

● Oil leak for “R” range circuit

● Oil pump

● Oil strainer (clogging)

SCIA2669E

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 A/T fluid reaches in range of 50 to 80°C (122 to 176°F), then inspect the amount of A/T fluid and replenish if necessary.

NOTE: The automatic fluid temperature rises in range of 50 to 80°C (122 to 176°F) during 10 minutes of driving.

3. Switch of A/C and light etc. are off.

4. After warming up A/T, remove the oil pressure detection plug and install the oil pressure gauge [SST: (J34301-C)] and adapter [SST: (J45542)].

CAUTION:

Make sure to check no oil leak after installing oi l pressure gage.

5. Securely engage the parking brake so that the tires do not turn.

SAT513G

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AT-56

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TROUBLE DIAGNOSIS

6. Start the engine, then measure the line pressure at both idle and 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-54, "

7. After the measurements are complete, install the oil pressure detection plug and tig hte n to the spe cif ie d torq ue .

:5.9 - 8.8 N·m (0.61 - 0.89 kg-m, 53 - 77 in-lb)

CAUTION:

Do not reuse O-ring.

STALL TEST" .

SAT493G

Line pressure

Engine speed

D, M positions R position At idle speed 333 - 392 (3.4 - 4.0, 48 - 57) 500 - 608 (5.1 - 6.2, 73 - 88) At stall speed 1,285 - 1,393 (13.1 - 14.2, 186 - 202) 1,706 - 1,981 (17.4 - 20.2, 247 - 287)

Line pressure kPa (kg/cm

, psi)

Judgement of line pressure test

Judgement Possible cause

Higher than standards both “D”, “M” and “R” positions

Lower than standards both “D”, “M” and “R” positions

Lower than standards only “D” position

Lower than standards only “R” position

● Pressure control solenoid valve A malfunction

● Primary regulato r val ve m al fu nct io n

● Pressure control solenoid valve A malfunction

● Primary regulato r val ve m al fu nct io n

● Oil pump malfunction

● B5 bake malfunction

● Oil leak for each range circuit malf unction

● Oil leak for “D” range circuit malfunct i on

● Forward clutch malfunction

● Oil leak for “R” range circuit malfunct i on

● Direct clutch malfun ction

● 1st and reverse brake malfu nct io n

ROAD TEST Description

● The road test inspects overall performance of the A/T and analyzes possible malfunction causes.

● The road test is perform in the following three stages.

1. Check before engine is started. Refer to AT-58

2. Check at idle. Refer to AT-58

3. Cruise test

● Inspect all the items from Part 1 to Part 3. Refer to AT-60 , AT-

61 , AT-62 .

SAT786A

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TROUBLE DIAGNOSIS

● Before beginning the road test, check the test procedure and

inspection item s.

● Te st all inspecti on items until t he symptom is un covered. Diag-

nose NG items when all road tests are complete.

SAT496G

Check Before Engine is Started ECS00A1C

1. CHECK A/T CHECK INDICATOR LAMP

1. Park vehicle on level surface.

2. Move selector lever to “P” position.

3. Turn ignition sw itch “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 >> 1. Turn ignition swit ch “OFF”.

2. Perform the self-diagn osti cs an d recor d al l NG it ems on the d iagn ostic s work shee t. R efer to AT-

75 , AT-80 .

3. Go to AT-58, "

No >> St op the road test and go to AT-210, "

Check at Idle" .

A/T CHECK Indicator Lamp does not come on" .

Check at Idle ECS00A1D

1. CHECK STARTING THE ENGINE

1. Park vehicle on level surface.

2. Move selector lever to “P” position.

3. Turn ignition switch “OFF”.

4. Turn ignition switch “START”. Does the engine start?

Yes >> GO TO 2. No >> St op the road test and go to AT-212, "

Engine Cannot Be Started In “P” or “N” Position" .

2. CHECK STARTING THE ENGINE

1. Turn ignition switch “ACC”.

2. Move selector lever in “D” or “R” position.

3. Turn ignition switch “START”. Does the engine start in either position?

Yes >> Stop the road test and go to AT-212, "Engine Cannot Be Started In “P” or “N” Position" . No >> GO TO 3.

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TROUBLE DIAGNOSIS

3. CHECK “P” POSITION FUNCTIONS

1. Move selector lever to “P” position.

2. Turn ignition switch “OFF”.

3. Disengage the parking brake.

4. Push the vehicle forward or backward.

5. Engage the parking brake. When you push the vehicle with disengaging the parking brake, does it move?

Yes >> Enter a check ma r k at “ Vehicle moves when pushed in “P” posi ti on” on the diag nost i cs w or ks heet ,

then continue the road test.

No >> GO TO 4.

4. CHECK “N” POSITION FUNCTIONS

1. Start the engine.

2. Move selector lever to “N” position.

3. Disengage the parking brake. Does vehicle move forward or backward?

Y es >> Enter a check mark at “Vehicle moves in “N” position” on the diagnostics worksheet, then continue

the road test.

No >> GO TO 5.

5. CHECK SHIFT SHOCK

1. Engage the brake.

2. Move selector lever to “D” position. When the transaxle is shifted from

Yes >> Enter a check mark at “Large shock when shifted from N to D” on the diagnostics worksheet, then

continue the road test.

No >> GO TO 6.

“N” to “D”, is there an excessive shock?

6. CHECK “R” POSITION FUNCTIONS

1. Engage the brake.

2. Move selector lever to “R” position.

3. Disengage the brake for 4 to 5 seconds. Does the vehicle creep backward?

Yes >> G O TO 7. No >> Enter a check mark at “Vehicle does not creep backward in R position” on the diagnostics work-

sheet, then continue the road test.

7. CHECK “D” POSITION FUNCTIONS

Inspect whether the vehicle moves forward when the transaxle is put into the “D” position. Does the vehicle move forward in the

Ye s > > G o to AT-60, "C ruise Test - Part 1" , AT- 61, "Cruise Test - Part 2" , and AT-62, "Cruise Test - Part

3" .

No >> Enter a che ck mark at “Vehicle does not move forward in D position s” on the diagnosti cs work-

sheet, then continue the road test.

“D” positions?

Revision: July 2005 2005 Maxima

AT-59

Page 74

TROUBLE DIAGNOSIS

Cruise Test - Part 1 ECS00A1E

1. CHECK STARTING OUT FROM D1

1. Drive the vehicle for about 10 minutes to war m up the engine oil and A/T fluid. Appropriate temperature for the A/T fluid: 50 - 80°C (122 - 176°F)

2. Park the vehicle on a level surface.

3. Move selector lever to “P” position.

4. Start the engine.

5. Move selector lever to “D” position.

6. Press the accelerator pedal about half way down to acceler ate the vehicle.

With CONSULT-II

Read off the gear positions. Starts from D1?

Yes >> GO TO 2. No >> Enter a check mark at “Vehicle cannot be s tarted from D1” on the di agnostics worksheet, then

continue the road test.

2. CHECK SHIFT-UP D1 → D2

Press down the acce ler ator p edal about half way an d ins pect if the vehi cle s hif ts up (D1 → D2 ) at th e app rop riate speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Does the A/T shift

Yes >> GO TO 3. No >> Enter a ch eck mark at “A/T do es n ot s hift D1 → D2 ” on the d iagno stic s w orksh eet, then cont inue

-up D1 → D2 at the correct speed?

the road test.

3. CHECK SHIFT-UP D2 → D3

Press down the acce ler ator p edal about half way an d ins pect if the vehi cle s hif ts up (D2 → D3 ) at th e app rop riate speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Does the A/T shift

Yes >> GO TO 4. No >> Enter a ch eck mark at “A/T do es n ot s hift D2 → D3 ” on the d iagno stic s w orksh eet, then cont inue

-up D2 → D3 at the correct speed?

the road test.

4. CHECK SHIFT-UP D3 → D4

Press down the acce ler ator p edal about half way an d ins pect if the vehi cle s hif ts up (D3 → D4 ) at th e app rop riate speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Does the A/T shift

Yes >> GO TO 5. No >> Enter a ch eck mark at “A/T do es n ot s hift D3 → D4 ” on the d iagno stic s w orksh eet, then cont inue

Revision: July 2005 2005 Maxima

-up D3 → D4 at the correct speed?

the road test.

AT-60

Page 75

TROUBLE DIAGNOSIS

5. CHECK SHIFT-UP D4 → D5

Press down the a ccele rato r pe dal abo ut ha lf wa y and inspect if th e vehi cle shif ts u p (D4 → D5) at the ap pro priate speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, throttle degree of opening, and vehicle speed. Does the A/T shift

Yes >> G O TO 6. No >> Enter a check mark at “A/T does not shift D4 → D5” on the diagnostics wo rksh eet, t hen conti nue

-up D4 → D5 at the correct speed?

the road test.

6. CHECK LOCK-UP

When releasing accelerator pedal from D5, check lock-up from D5 to L/U.

● Refer to AT-63 .

With CONSULT-II

Read the lock-up status. Does it lock-up?

Yes >> G O TO 7. No >> Enter a check mark at “A/T does not perform lock-up” on the diagnostics worksheet, then continue

the road test.

7. CHECK LOCK-UP HOLD

Does it maintain lock-up status?

Yes >> G O TO 8. No >> Enter a check mark at “A/T hold does not lock-up condition” on the diagnostics worksheet, then

continue the road test.

8. CHECK LOCK-UP RELEASE

Check lock-up cancellation by depressing brake pedal lightly to decelerate.

With CONSULT-II

Read the lock-up status. Does lock-up cancel?

Yes >> 1. Stop the vehicle.

2. Go to Cruise test - Part 2 (Refer to AT-61

No >> Enter a c heck mark at “ Loc k-up is not re leased” on the diagnosti cs work sheet, then co ntinue the

road test. Go to Cruise test - Part 2 (Refer to AT-61

Cruise Test - Part 2 ECS00A1F

1. CHECK STARTING FROM D1

1. Move selector lever the “D” position.

2. Accelerate at half throttle. With CONSULT-II

Read the gear position. Does it start from D1?

Yes >> G O TO 2. No >> Enter a check ma rk at “Vehicle cannot be started from D1” on the diag nostics worksheet, then

continue the road test.

Revision: July 2005 2005 Maxima

AT-61

Page 76

TROUBLE DIAGNOSIS

2. CHECK SHIFT-UP D1 → D2

Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D1 → D2) at the correct speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, accelerator angle and vehicle speed. Does the A/T shift

Yes >> GO TO 3. No >> Enter a che ck mark a t “Vehicle does not shift D 1 → D2” on the dia gnosti cs workshe et, then con-

-up D1 → D2 at the correct speed?

tinue the road test.

3. CHECK SHIFT-UP D2 → D3

Press the accelerator pedal down all the way and inspect whether or not the transaxle shifts up (D2 → D3) at the correct speed.

● Refer to AT-63 .

With CONSULT-II

Read the gear position, accelerator angle and vehicle speed. Does the A/T shift

Yes >> GO TO 4. No >> Enter a che ck mark a t “Vehicle does not shift D 2 → D3” on the dia gnosti cs workshe et, then con-

-up D2 → D3 at the correct speed?

tinue the road test.

4. CHECK SHIFT-UP D3 → D4 AND ENGINE BRAKE

When the transaxle changes spee d D2 → D3, return the accelerator pedal. Does the A/T shift

Yes >> 1. Stop the vehicle.

No >> Enter a che ck mark a t “Vehicle does not shift D 3 → D4” on the dia gnosti cs workshe et, then con-

-up D3 → D4 and apply the engine brake?

2. Go to Cruise test - Part 3 (Refer to AT-62

tinue the road test.

Cruise Test - Part 3 ECS00A1G

1. 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 check mark to “Canno t be change d to manual mode” on diagn ostics

worksheet.

2. CHECK SHIFT-DOWN

During manual mode driving, is downshift from M5 → M4 → M3 → M2 → M1 performed?

With CONSULT-II

Read the gear position. Is downshifting correctly performed?

Yes >> GO TO 3. No >> Enter a check mark at “Vehicle does not shift” at the corresponding position (5th → 4th, 4th →

3rd, 3rd → 2nd, 2n d → 1st) on the diagnostics worksheet, then continue the road test.

Revision: July 2005 2005 Maxima

AT-62

Page 77

TROUBLE DIAGNOSIS

3. CHECK ENGINE BRAKE

Does engine braking effectively reduce speed in M1 position?

Yes >> 1. Stop the vehicle.

2. Pe rform th e self -diagno stics. Re fer to AT-75, "

tic Procedure Without CONSULT-II" .

No >> Enter a check mark at “Vehicle does not decelerate by engine brake” on the diagnostics work-

sheet, then continue trouble diagnosis.

Shift Schedule ECS00A1H

VEHICLE SPEED WHEN SHIFTING GEARS

Accelerator angle

100 %

90 %

80 %

70 %

60 %

50 %

40 %

30 %

20 %

10 %

1 →D2 D2 →D3 D3 →D4 D4 →D5 D5 →D4 D4 →D3 D3 →D2 D2 →D1

(37)

(31)

(23)

(17)

(12)

(59)

(56)

(51)

(39)

(27)

(17)

Vehicle speed km/h (MPH) (Approx.)

147 (91)

137 (85)

117

(73)

(54)

(37)

(22)

SELF-DIAG RESULT MODE" , AT-80, "Diagnos-

217

(135)

217

(135)

217

(135)

217

(135)

217

(135)

202

(126)

172

(107)

127 (79)

(54)

(34)

207

(129)

207

(129)

207

(129)

197

(122)

190

(118)

176

(109)

148 (92)

105 (65)

(37)

(27)

142 (88)

141 (88)

135 (84)

123 (76)

(57)

(37)

(25)

(20)

(52)

(50)

(47)

(43)

(34)

(22)

(14)

(25)

(20)

(12)

(5)

VEHICLE SPEED WHEN PERFORMING AND RELEASING COMPLETE LOCK-UP

Accelerator angle

50 % 217 (135) 195 (121)

15% 108 (67) 70 (43)

0 - 8 % 66 (41) 63 (39)

● Lock-up vehicle speed indicates the speed in D position.

● Perform lock-up inspection after warming up engine.

● Lock-up vehicle speed may vary depending on the driving conditions and circumstances.

Lock-up “ON” Lock-up “OFF”

Vehicle speed km/h (MPH) (Approx.)

VEHICLE SPEED WHEN PERFORMING AND RELEASING SLIP LOCK-UP

Accelerator angle Gear position

0 - 10 %

● Slip lock-up vehicle speed indicates the spe ed in D pos iti on.

● Perform slip lock-up inspection after war ming up engine.

4th 41 (25) 38 (24) 5th 53 (33) 50 (31)

Revision: July 2005 2005 Maxima

Slip lock-up “ON” Slip lock-up “OFF”

AT-63

Vehicle speed km/h (MPH) (Approx.)

Page 78

TROUBLE DIAGNOSIS

● Slip lock-up vehicle speed may vary depending on the driving conditions and circumstances.

Symptom Chart ECS00A1I

Numbers are arranged in order of inspection. Perform inspections starting with number one and work up.

CAUTION:

Do not remove or disassemble any RE5F22 A model transaxle parts unless specifie d to do so in AT section.

Symptom Condition Diagnostic Item

With selector lever in D position , d riving is not possible.

With selector lever in R position, driving is not possible.

No shock at all or the clutch slips when vehicle changes speed.

1. Fluid level and state AT-54

2. Control cable and PNP switch adjustment

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicl e 10. Accumulator AT-252

3. TCM AT-71

4. Pressure control solenoid valve A AT-144

5. Control valve assembly AT-241

6. Torque converter AT-243

7. Forward and direct clutch assembly AT-252

8. B5 brake AT-280

9. One-way clutch No.2 AT-252

1. Fluid level and state AT-54

2. Control cable and PNP switch adjustment

3. TCM AT-71

4. Shift solenoid valve A AT-149

5. Shift solenoid valve B AT-154

6. Pressure control solenoid valve A AT-144

7. Control valve assembly AT-241

8. Torque converter AT-252

9. Forward and direct clutch assembly AT-252

10. 1st and reverse brake AT-252

11. B5 brake AT-280

1. Fluid level and state AT-54

2. Control cable and PNP switch adjustment

3. TCM AT-71

4. Shift solenoid valve A AT-149

5. Shift solenoid valve B AT-154

6. Shift solenoid valve E AT-174

7. Pressure control solenoid valve A AT-144

8. Pressure control solenoid valve C AT-188

9. Control valve assembly AT-241

Reference

page

AT-240

, AT-

238

AT-241

, AT-

238

AT-240

, AT-

238

Revision: July 2005 2005 Maxima

AT-64

Page 79

TROUBLE DIAGNOSIS

Symptom Condition D iagnostic Item

ON vehicle

Time lag is large. (“N” →“ D” position)

OFF vehicle

ON vehicle

Time lag is large. (“N” →“ R” position)

OFF vehicle

Engine does not start in “N”, “P” position. ON vehicle

Engine starts in positions other than “N” or “P”.

Engine stalls when selector lever shifted “N” → “D”, “R”.

Engine stall when vehicle slow down. ON ve hicle

Acceleration is extremely poor. ON vehicle

ON vehicle

Reference

page

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. TCM AT-71

5. Control valve assembly AT-241

6. Accumulator AT-252

7. Forward and direct clutch assembly AT-252

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. TCM AT-71

5. Shift solenoid valve E AT-174

6. Control valve assembly AT-241

7. Forward and direct clutch assembly AT-252

8. 1st and reverse brake AT-252

1. Ignition switch and starter PG-4

2. Control cable adjustment AT-240

3. PNP switch AT-90

1. Ignition switch and starter PG-4

2. Control cable adjustment AT-240

3. PNP switch AT-90

1. Fluid level and state AT-54

2. TCM AT-71

3. Shift solenoid valve D AT-169

4. Pressure control solenoid valve C AT-188

5. Control valve assembly AT-241

1. Fluid level and state AT-54

2. TCM AT-71

3. Shift solenoid valve D AT-169

4. Shift solenoid valve E AT-174

5. Pressure control solenoid valve C AT-188

6. Control valve assembly AT-241

1. Fluid level and state AT-54

2. Control cable and PNP switch adjustment

3. Engine speed signal AT-113

4. Electric throttle control signal AT-209

, SC-10

AT-240

238

, AT-

Revision: July 2005 2005 Maxima

AT-65

Page 80

TROUBLE DIAGNOSIS

Symptom Condition Diagnostic Item

Gear does not change from D1 → D2 or

1 → M2 .

from M

Gear does not change from D2 → D3 or from M

2 → M3 .

Gear does not change from D3 → D4 or

3 → M4 .

from M

Gear does not change from D4 → D5 or

4 → M5 .

from M

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve A AT-149

5. Shift solenoid valve B AT-154

6. Shift solenoid valve C AT-159

7. Shift solenoid valve D AT-169

8. Control valve assembly AT-241

9. 2nd coast brake

10. 2nd brake AT-272

11. One-way clutch No.1 AT-278

12. One-way clutch No.2 AT-252

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Shift solenoid valve D AT-169

7. Pressure control solenoid valve A AT-144

8. Control valve assembly AT-241

9. U/D brake AT-252

10. B5 brake AT-280

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Shift solenoid valve D AT-169

7. Control valve assembly AT-241

8. U/D clutch AT-252

9. U/D brake AT-252

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Control valve assembly AT-241

7. Forward and direct clutch assembly AT-252

8. 2nd coast brake

9. One-way clutch No.1 AT-278

AT-272

278

AT-272

278

, AT-

Revision: July 2005 2005 Maxima

AT-66

Page 81

TROUBLE DIAGNOSIS

Symptom Condition D iagnostic Item

In D or M range, does not downshift to 1st gear.

In D or M range, does not downshift to 2nd gear.

In D or M range, does not downshift to 3rd gear.

In D or M range, does not downshift to 4th gear.

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve A AT-149

5. Shift solenoid valve B AT-154

6. Shift solenoid valve C AT-159

7. Shift solenoid valve D AT-169

8. Control valve assembly AT-241 , AT-

9. 2nd coast brake

10. 2nd brake AT-272

11. One-way clutc h No.1 AT-278

12. One-way clutch No.2 AT-252

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Shift solenoid valve D AT-169

7. Pressure control solenoid valve A AT-144

8. Control valve assembly AT-241

9. U/D brake AT-252

10. B5 brake AT-280

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Shift solenoid valve D AT-169

7. Control valve assembly AT-241

8. U/D clutch AT-252

9. U/D brake AT-252

1. Fluid level and state AT-54

2. TCM AT-71

3. Electric throttle control signal AT-209

4. Shift solenoid valve B AT-154

5. Shift solenoid valve C AT-159

6. Control valve assembly AT-241

7. Forward and direct clutch assembly AT-252

8. 2nd coast brake

9. One-way clutch No .1 AT-278

AT-272

278

AT-272

278

, AT-

Revision: July 2005 2005 Maxima

AT-67

Page 82

TROUBLE DIAGNOSIS

Symptom Condition Diagnostic Item

Does not lock-up or lock-up is not released.

Engine brake does not work.

Shift point is high or low. ON vehicle

Large shock. (“N” →“ D” position)

ON vehicle

OFF vehicle 9. T orque converter AT-243

ON vehicle

OFF vehicle

ON vehicle

OFF vehicle

Reference

page

1. Fluid level and state AT-54

2. Stop lamp switch signal AT-229

3. ATF temperature sensor AT-95

4. TCM AT-71

5. Shift solenoid valve C AT-159

6. Shift solenoid valve D AT-169

7. Pressure control solenoid valve C AT-188

8. Control valve assembly AT-241

1. Fluid level and state AT-54

2. TCM AT-71

3. Shift solenoid valve E AT-174

4. Electric throttle control signal AT-209

5. Control valve assembly AT-241

6. 2nd coast brake

7. U/D brake AT-252

8. B5 brake AT-280

1. Pressure control solenoid valve A AT-144

2. Engine speed signal AT-113

3. Electric throttle control signal AT-209

4. Revolution sensor AT-109

5. TCM AT-71

6. Control valve assembly AT-241

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. ATF temperature sensor AT-95

5. Shift solenoid valve A AT-149

6. Shift solenoid valve B AT-154

7. Pressure control solenoid valve A AT-144

8. TCM AT-71

9. Control valve assembly AT-241

10. Accumulator AT-252

11. Forward and direct clutch assembly AT-252

AT-272

278

, AT-

Revision: July 2005 2005 Maxima

AT-68

Page 83

TROUBLE DIAGNOSIS

Symptom Condition D iagnostic Item

ON vehicle

Large shock. (“N” →“ R” pos ition)

OFF vehicle

Shock is too large when shift up. ON vehicle

Shock is too large for coast down. ON vehicle

Reference

page

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. ATF temperature sensor AT-95

5. Shift solenoid valve E AT-174

6. Pressure control solenoid valve B AT-179

7. TCM AT-71

8. Control valve assembly AT-241

9. Forward and direct clutch assembly AT-252

10. 1st and reverse brake AT-252

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. ATF temperature sensor AT-95

5. TCM power input signal AT-204

6. Shift solenoid valve A AT-149

7. Shift solenoid valve B AT-154

8. Shift solenoid valve C AT-159

9. Shift solenoid valve D AT-169

10. Shift solenoid valve E AT-174

11. Pressure control solenoid valve A AT-144

12. Pressure control solenoid valve B AT-179

13. Pressure control solenoid valve C AT-188

14. TCM AT-71

15. Control valve assembly AT-241

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. ATF temperature sensor AT-95

5. TCM power input signal AT-204

6. Shift solenoid valve A AT-149

7. Shift solenoid valve B AT-154

8. Shift solenoid valve C AT-159

9. Shift solenoid valve D AT-169

10. Shift solenoid valve E AT-174

11. Pressure control solenoid valve A AT-144

12. Pressure control solenoid valve B AT-179

13. Pressure control solenoid valve C AT-188

14. TCM AT-71

15. Control valve assembly AT-241

Revision: July 2005 2005 Maxima

AT-69

Page 84

TROUBLE DIAGNOSIS

Symptom Condition Diagnostic Item

Shock is too large for kick down. ON vehicle

ON vehicle

Strange noise in “R”,“N” or“ D” position.

OFF vehicle

With selector lever in P position, vehicle does not enter parking condition or, with selector lever in another position, parking condition is not cancelled.

Vehicle runs with transaxle in “ P” position. ON vehicle

Vehicle runs with transaxle in “N” position. ON vehicle

ON vehicle

OFF vehicle 4. Parking component AT-272

Reference

page

1. Fluid level and state AT-54

2. Actual engine torque signal AT-113

3. Turbine revolution sensor AT-105

4. ATF temperature sensor AT-95

5. TCM power input signal AT-204

6. Shift solenoid valve A AT-149

7. Shift solenoid valve B AT-154

8. Shift solenoid valve C AT-159

9. Shift solenoid valve D AT-169

10. Shift solenoid valve E AT-174

11. Pressure control solenoid valve A AT-144

12. Pressure control solenoid valve B AT-179

13. Pressure control solenoid valve C AT-188

14. TCM AT-71

15. Control valve assembly AT-241

1. Fluid level and state AT-54

2. Control valve assembly AT-241

3. Torque converter AT-252

4. Parking component AT-272

5. Gear system AT-252

1. PNP switch AT-90

2. Control cable adjustment AT-240

3. Control valve assembly AT-241

1. Fluid level and state AT-54

2. PNP switch AT-90

3. Control cable and PNP switch adjustment

4. Line pressure test AT-56

1. Fluid level and state AT-54

2. PNP switch AT-90

3. Control cable and PNP switch adjustment

4. Line pressure test AT-56

AT-240

238

AT-240

238

, AT-

Revision: July 2005 2005 Maxima

AT-70

Page 85

TROUBLE DIAGNOSIS

TCM Input/Output Signal Reference Values ECS00A1J

TCM TERMINAL CONNECTOR LAYOUT

WCIA0447E

Revision: July 2005 2005 Maxima

AT-71

Page 86

TROUBLE DIAGNOSIS

TCM INSPECTION TABLE

Data are reference value and are measured betwee n each t erm inal and gr ound.

Terminal

1 L/B A/T PV IGN relay

3 L CAN-H – – 4 P CAN-L – –

5R/G

6L/R

14 B Ground Always 0V

16 SB

19 V/R

21 G/B

Wire color

Manual mode switch UP (+)

Manual mode switch DOWN (-)

Manual mode switch AUTO

Manual mode switch MANUAL

Pressure control solenoid valve B ground

Item Condition

When turning ignition switch ON. 0 - 1.5V

When turning ignition switch OFF . 0V

Selector lever: + side 0V Other than the above Battery voltage Selector lever: - side 0V Other than the above Battery voltage

Selector lev e r: “P ”, “R”, “N” or “D” p o sition 0V Selector lever: Manual shift gate position Battery voltage Selector lever: Manual shift gate position

(neutral) Other than the above Battery voltage

When engine is running with idle speed and setting selector lever to “P” position.

Data (Approx.)

22 L

23 G

24 O/L PNP switch A

25 G/R

26 V/W

27 Y/R

Revolution sensor power supply

Turbine revolution sensor power supply

Shift so le noid valve B

Shift so le noid valve D

Power supply (Memory back-up)

When turning ignition switch ON. Bat te ry voltage

When turning ignition switch OFF . 0V

When turning ignition switch ON. Bat te ry voltage

When turning ignition switch OFF . 0V

Selector lever: “P” and “R” position 0V Other than the above Battery voltage When shift solenoid valve B operates.

(When driving in 1st or 5th gear.) When shift solenoid valve B does not oper-

ate. When shift solenoid valve D operates.

(When driving in 3rd, 4th or 5th gear.) When shift solenoid valve D does not oper-

ate.

Always Battery voltage

Battery voltage

Revision: July 2005 2005 Maxima

AT-72

Page 87

TROUBLE DIAGNOSIS

Terminal

28 W

29 B/W Revolution sensor

30 R

31 BR PNP switch B

32 P/B PNP switch C

33 LG PNP switch PN

Wire

color

Pressure control solenoid valve C ground

Turbine revolu tio n sensor

Item Condition

Data (Approx.)

When engine is running with idle speed and setting selector lever to “P” position.

When moving at 20 km/h (12 MPH) in 1st gear.

Selector lever: “R”, “N”, “D” and manual mode position

Other than the above

Selector lever: “D” and manual mode position

Other than the above

Selector lever: “P” and “N” position

Other than the above

When turning ignition switch ON. Bat tery vol tage

119Hz

371Hz

Battery voltage

34 Y Power supply

35 L/Y

36 O/B

37 R/B

38 R/Y

39 R/Y

Pressure control solenoid valve A

Pressure control solenoid valve B

Shift solenoid valve C

Power supply (A/T PV IGN re l a y)

Power supply (A/T PV IGN relay)

When turning ignition switch OFF. 0V

When engine is running with idle speed and setting selector lever to “P” position.

When shift solenoid valve C operates. (When driving in 1st, 2nd, 3rd or reverse gear.)

When shift solenoid valve C does not operate.

When turning ignition switch ON. Bat tery vol tage

Measure 3 seconds after switching “OFF” the igni t ion switch.

When turning ignition switch ON. Bat tery vol tage

Measure 3 seconds after switching “OFF” the igni t ion switch.

300Hz

Battery voltage

Pressure control

40 L/G

solenoid valve A ground

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When engine is running with idle speed and setting selector lever to “P” position.

AT-73

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TROUBLE DIAGNOSIS

Terminal

41 R/Y

42 LG

43 V/W PNP switch PA

45 O

46 W/G

47 BR/Y

48 B Ground Always 0V

Wire color

Fluid temperature sensor

Fluid temperature sensor ground

Pressure control solenoid valve C

Shift so le noid valve A

Shift so le noid valve E

Item Condition

When ATF temperature 0°C (32°F) 4.0V 9.8 kΩ When ATF temperature 20°C (68°F) 3.0V 4.2 kΩ When ATF temperature 80°C (176°F) 0.8V 0.54 kΩ When ATF temperature 100°C (212°F) 0.5V 0. 31 kΩ

Always 0V Selector lever: “P” and “N” position 0V Other than the above Battery voltage

When engine is running with idle speed and setting selector lever to “P” position.

When shift solenoid valve A operates. (When driving in 1st gear.)

When shift solenoid valve A does not operate.

When shift solenoid valve E operates. (When driving in reverse gear.)

When shift solenoid valve E does not operate.

Data (Approx.)

300Hz

Battery voltage

CONSULT-II Function (TCM) ECS00A1K

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

TCM diagnostic mode Description

Supports inspections and adjustments. Commands are transmitted to the TCM for setting the status

WORK SUPPORT

SELF-DIAG RESULTS Di splays TCM self-diagnosis results.

DATA MONITOR Displays TCM input / out put data in real time.

CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.

ACTIVE TEST Operation of electrical loads can be check ed by sending drive signal to them.

FUNCTION TEST Conducted by CONSULT-II instead of a technician to determine whether each system is "OK" or "NG".

ECU PART NUMBER TCM part number can be read.

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (Refer to AT-75 marks for results on the AT-4 9, " items.

NOTICE:

1. The CONSUL T-II elec tri cal ly dis play s shif t tim ing an d lock -up t imin g (that is, op era tio n timing of eac h sole noid). Check for time difference between actual shift timing and the CONSULT-II display. If the difference is noticeable, me chan ical parts (exc ept s olen oids , sens ors, e tc .) may be ma lfunc tion ing. C hec k me chan ical parts using applicable diagnostic procedures.

2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Manual may differ slightly. This occurs because of the following reasons:

– Actual shift schedule has more or less tolerance or allowanc e, – Shift schedule indicated in Service Manual refers to the point where shifts start, and – Gear position displayed on CONSULT-II indicates the point where shifts are completed.

3. Display of solenoid valves on CO NS ULT-II changes at the start of shift i ng, w h ile ge ar p osit i on is disp l aye d upon completion of shifting (which is computed by TCM).

suitable for required operation, input/output si gnals ar e received from the TCM and received data is displayed.

), place check

DIAGNOSTIC WORKSHEET" . Reference pag es are provided fo llowing the

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AT-74

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TROUBLE DIAGNOSIS

4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II unit.

CONSULT -II SETTING PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carry out CAN communication.

● For details, refer to the separate “CONSULT-II Operations Man-

ual”.

1. Turn ignition switch “OFF”.

2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector, which is located in driver instrument panel (lower).

3. Turn ignition switc h “ON”. (Do no t start engine.)

4. Touch “START (NISSAN BASED VHCL)”.

5. Touch “A/T”. If “A/T” is not indicated, go to GI-37, "

CONSULT-II Data Link

Connector (DLC) Circuit" .

6. Perform each diagnostic test mode according to each service procedure.

WORK SUPPORT MODE Work item

Work item Condition Usage

INITIALIZATION Under the following condi tions .

● Ignition switch “ON”.

● Selector lever “P” or “N” position.

● Engine not running.

● Vehicle speed is 0 km/h (0 MPH).

● Ignition voltage is more than 10.5V.

● Malfunction was not d ete cted.

LCIA0042E

BCIA0029E

BCIA0030E

Use to initialize TCM in a case of replacing transaxle or TCM. Refer to AT-8, "

T Assembly or TCM Replacement" .

Precautions for A/

SELF-DIAG RESULT MODE Operation procedure

1. Perform “CONSULT- II SETTING PROCEDURE”. Refer to AT-75, "CONSULT-II SETTING PROCEDURE" .

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AT-75

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TROUBLE DIAGNOSIS

2. Touch “SELF-DIAG RESULTS”. Display shows malfunction experienced since the last erasing operation.

NOTE:

● The details for “TIME” are as follow:

– “CRNT”: Error currently detected with TCM. – “PAST”: Error detected in the past and memorized with

TCM.

● Touch “F.F.DATA” on “SELF-DIAG RESULTS” screen to

display freeze fr ame data. Freeze frame data shows driving condition when malfunction is detected. For freeze frame data items, refer to AT-76, "

Display item list

Items (CONSULT-II

screen terms)

CAN COMM CIRCUIT

VEH SPD SE/CIRMTR

TCM PROCESSOR PNP SW/CIRC

A TF TEMP SEN/ CIRC

FLUID TEMP SEN

TURBINE SENSOR

VHCL SPEED SEN-A/T

ENG SPD INP PERFOR

A/T 1ST GR FNCTN

A/T 2ND GR FNCTN

A/T 3RD GR FNCTN

A/T 4TH GR FNCTN

A/T 5TH GR FNCTN

A/T TCC S/V FNCTN

Malfunction is detected when...

● When a malfunction is detect ed i n CAN communications X

● ECM detects a malfunction in vehicle speed sensor signal,

after that TCM inputs the resu lt b y CAN commu nication.

● TCM processor is malfunctioning. — P0613 —

● PNP switch signals input with impossible pattern X P0705 P0705

● Normal voltage is not applied to ATF temperature sensor

due to open, short, and so on.

● During running, the ATF temperature sensor signal voltage

is excessively high or low.

● ATF temperature signal does not change. — P0711

● Signal from turbine revolution sensor does not input due to

open, short, and so on.

● Unexpected signal input dur ing running.

● Signal from revolution sensor does not input due to ope n,

short, and so on.

● Unexpected signal input dur ing running.

● Malfunction is detected in engi ne speed signal, actual

engine torque signal or torque reduction signal th at is output from ECM through CAN communication.

● A/T cannot be shifted to the 1st gear posi tion eve n if ele c-

trical circuit is good.

● A/T cannot be shifted to the 2nd gear position even if elec-

trical circuit is good.

● A/T cannot be shifted to the 3rd gear positi on eve n if elec -

trical circuit is good.

● A/T cannot be shifted to the 4th gear position even if elec-

trical circuit is good.

● A/T cannot be shifted to the 5th gear position even if elec-

trical circuit is good.

● A/T cannot perform lock-up even i f electr ic al cir cuit is

good.

Display item list" .

X: Applicable —: Not applicable

TCM self-diagnosis O BD - II (DTC)

MIL indicator

A/T CHECK

indicator

lamp

“TRANSMIS-

SION” with

CONSULT-II

U1000

“ENGINE” with CONSULT -II or

X P0500 P0500

X P0710 P0710

X P0717 P0717

X P0722 P0722

X P0726 P0726

X P0731

X P0732

X P0733

X P0734

X P0735

X P0744 P0744*2

SCIA2741E

lamp

GST

U1000

P0711

P0731

P0732

P0733

P0734

P0735

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AT-76

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TROUBLE DIAGNOSIS

TCM self-diagnosis OBD-II (DTC)

Items (CONSUL T -II

screen terms)

PC SOL A(L/ PRESS)

SHIFT SOL A X P0750 P0750 SHIFT SOL B X P0755 P0755 SHIFT SOL C X P0760 P0760

SFT SOL C STUCK ON

SHIFT SOL D SHIFT SOL E X P0770 P0770 PC SOL B(SFT/

PRS)

SHIFT

PC SOL C(TCC&SFT)

PC SOL C STC ON

MANUAL MODE SWITCH

TCM POWER INPT SIG

ELEC TH CONTROL

NO DTC IS DETECTED. FURTHER TESTING MAY BE REQUIRED.

*1: Refer to AT-43, "Malfunction Indicator Lamp (M I L) " . *2: These malfunctions cannot be display ed M IL if anoth er mal fu nct io n is assig ned t o MIL. *3: Indicate it when performing TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS). Refer to AT- 80 , "

PROCEDURE (NO TOOLS)" .

*4: If DTC U1000 is displayed with other DTCs, firs t perfo rm the troubl e diagnosis for DTC U1000. Refer to AT-83

● Normal voltage is not applied to sole noid due t o open,

short, and so on.

● TCM detects as irregular by comparing target value wi th

monitor value.

● Condition of shift solenoid valve C is dif fere nt from monito r

value, and relation between gear position a nd actual gear ratio is irregular.

● Normal voltage is not applied to sole noid due t o open,

short, and so on.

● TCM detects as irregular by comparing target value wi th

monitor value.

● No rotation change occurs betw een i nput (turb ine revo lu -

tion sensor) and output (revolution sensor) and shif ting time is long.

● Shifting ends immediately.

● Condition in malfunction engine revs up usually shifting.

● Normal voltage is not applied to sole noid due t o open,

short, and so on.

● TCM detects as irregular by comparing target value wi th

monitor value.

● Condition of pressure control solenoid valve C is different

from monitor value, and relation between gear po sition and actual gear ratio or lock-up status is irregular.

● Manual mode switch signal is incorrectly input due to

open, short, and so on.

● Voltage supplied to TCM is too low. — P0882 P0882

● The electric throttle control system for ECM is in a mal-

function, after that TCM inputs the result by CAN commnication.

● No NG item has been detected. — X X

Malfunction is detected when...

A/T CHECK

indicator

lamp

X P0745 P0745

X P0762

X P0765 P0765

X P0775 P0775

X P0780

X P0795 P0795

X P0797

— P0826 —

X P1726 P1726

“TRANSMIS-

SION” with

CONSULT-II

TCM SELF-DIAGNOSTIC

MIL indicator

lamp “ENGINE” with CONSUL T-II or

GST

P0762

P0780

P0797

DATA MONITOR MODE Operation procedure

1. Perform “CONSULT- II SETTING PROCEDURE”. Refer to AT-75, "CONSULT-II SETTING PROCEDURE" .

2. Touch “DA TA MONITOR”.

NOTE: When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS. Also, any malfunction detected while in this mode will be displayed at real time.

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AT-77

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Display item list

Monitored item (Unit)

VHCL/S SE-A/T (km/h) X X X VHCL/S SE-MTR* (km/h) X — X

FLUID TEMP SE* (V) X — X FLUID TEMP* (°C) — — X

COOLAN TEMP* (°C) — — X

BATTERY VOLT* (V) X — X

ENGINE SPEED* (rpm) X X X

TURBINE REV* (rpm) X — X

OUTPUT REV* (rpm) — — X

PNP SW A* (ON/OFF) X — X PNP SW B* (ON/OFF) X — X PNP SW C* (ON/OFF) X — X PNP SW PA* (ON/OFF) X — X PNP SW PN (ON/OFF) X — X MANU MODE SW* (ON/OFF) X — X NON M-MODE SW* (ON/OFF) X — X UP SW* (ON/OFF) X — X DOWN SW* (ON/OFF) X — X RANGE SLCT SW (ON/OFF) X — X Not mounted but displayed.

BRAKE SW* (ON/OFF) X — X CLSO THL POS (ON/OFF) X — X

ASCD SIGNAL (ON/OFF) X — X ASCD OD OFF (ON/OFF) X — X ABS SIGNAL (ON/OFF) X — X TCS SIGNAL (ON/OFF) X — X TCS GEAR HOLD (ON/OFF) X — X

TCS SFT CNG (ON/OFF) — — X

LOCK-UP* (ON/OFF) — — X

SLCT LVR POSI* — — X

MANU GR POSI — — X

TROUBLE DIAGNOSIS

Monitor item selection

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION FROM MENU

X: Standard —: No t applicable

Remarks

Vehicle speed recognized by the TCM.

Displays status of engine coolant temperature. Signal input with CAN communication line.

Signal input with CAN communication line.

Turbine revolution computed from signal of turbine revolution sensor is displayed.

Output revolution computed from signal of revolution sensor is displayed.

This means stop lamp switch signal via CAN communication line.

Signal input with CAN communication line.

Requests TCM for shift schedule change.

Always “ON” during lock-up, regardless of types.

Displays “##” in manual mode or when unknown.

Displays “##” in non-manual mode or when unknown.

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TROUBLE DIAGNOSIS

Monitor item selection

Monitored item (Unit)

GEAR* — — X

NEXT GR POSI — — X

REDCT DEM SIG (ON/OFF) — — X

TC SLIP RATIO — — X

SLIP REV (rpm) — — X

ACCELE ANGLE* (%) X X X

PC SOL A OUT* (A) — — X PC SOL A MON* (A) — X X PC SOL B OU*T (A) — — X PC SOL B MON* (A) — X X PC SOL C OUT* (A) — — X PC SOL C MON* (A) — X X SFT SOL A OUT* (ON/OFF) — — X SFT SOL B OUT* (ON/OFF) — — X SFT SOL C OUT* (ON/OFF) — — X SFT SOL D OUT* (ON/OFF) — — X SFT SOL E OUT* (ON/OFF) — — X SFT SOL A MON* (ON/OFF) — X X SFT SOL B MON* (ON/OFF) — X X SFT SOL C MON* (ON/OFF) — X X SFT SOL D MON* (ON/OFF) — X X SFT SOL E MON* (ON/OFF) — X X G-RATE (G) — — X

F-SAFE MODE (OK/1 to 10) — X X

VDC SIGNAL (ON/OFF) X — X

SHIFT SCHDULE — — X

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

SELEC-

TION FROM MENU

Remarks

Indicates current gear position. Also when setting in P or N position, indicate by shift solenoid valves. Displays “##” in R position or when unknown.

Displays “##” in R position or when unknown.

Displays status of engine torque reduction demand signal.

Difference between engine speed and torque converter input shaft speed.

Degree of opening for accelerator recognized by the TCM. For fail-safe operation, the specific value used for control is displayed.

Numbers indicate types of fail-safe modes. Refer to AT-45, "

mode list" .

Signal input with CAN communication line.

The details for data of shift schedule are as follow: NOR: Normal mode UP1: Upslope 1 mode UP2: Upslope 2 mode (steeper than “UP1”) DOWN: Downslope mode HOT1: Hot 1 mode HOT2: Hot 2 mode (higher temperature than “HOT1”)

Fail-safe

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AT-79

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TROUBLE DIAGNOSIS

Monitor item selection

Monitored item (Unit)

Voltage (V) — — X

Frequency (Hz) — — X DUTY-HI (high) (%) — — X DUTY-LOW (low) (%) — — X PLS WIDTH-HI (ms) — — X PLS WIDTH-LOW (ms) — — X

*: Also, the items appear on CONSULT-II screen in freeze frame data mode of self-diagnostic results only if DTC is detected. For details, refer to AT-7 5, "

SELF-DIAG RESULT MODE" .

ECU

INPUT

SIGNALS

MAIN SIG-

NALS

ACTIVE TEST MODE Test item

Test item Condition Description SHIFT SOLENOID A SHIFT SOLENOID B SHIFT SOLENOID C SHIFT SOLENOID D SHIFT SOLENOID E PRESSURE CONTROL SOL A PRESSURE CONTROL SOL B PRESSURE CONTROL SOL C

*: Except when P0711, P0731, P0732, P0733, P0734, P0735, P0744, P0762, P0780 or P0797 is detected.

NOTE: Approximately 10 seconds after the operation is begun, “TEST IS STOPPED” will be displayed.

Under the following conditions.

● Ignition switch “ON”

● Selector le ver “P” or “N” position

● Engine not running

● Vehicle speed is 0 km/h (0 MPH).

● Ignition voltage is more than 10.5V.

● Malfunction was not detected.*

SELEC-

TION FROM MENU

Displays the value measured by the voltage probe.

The value measured by the pulse probe is displayed.

Each shift solenoid operate ON/OFF by receiving the drive signal.

Each pressure control solenoid is activated by r ecei ving the drive signal.

Remarks

Diagnostic Procedure Without CONSULT-II ECS00A1L

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to EC-143, "Generic Scan Tool (GST) Function" .

OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Refer toEC-64, "Malfunction Indicator Lamp (MIL)" .

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Description

As a method for lo cating the suspe ct system, when t he self-diagnosti cs start signal is input, the memory for the malfunction location is output and the A/T CHECK indicator lamp flashes to display the corresponding DTC.

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AT-80

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TROUBLE DIAGNOSIS

Diagnostic procedure

1. CHECK A/T CHECK INDICATOR LAMP

1. Start the engine with selector lever in “P” position. Warm engine to normal operating temperature.

2. Turn ignition switch “ON” and “OFF” at least twice, then leave it in the “OFF” position.

3. Wait 10 se conds.

4. Turn ignition switc h “ON”. (Do no t start engine.)

5. Does A/T CHECK indicator lamp come on for about 2 seconds? Yes or No

Yes >> G O TO 2. No >> GO TO AT-210, "

A/T CHECK Indicator Lamp does not come on" .

2. JUDGEMENT PROCEDURE

NOTE:

After turning ignition switch “ON” (at step 6), perform within 2 seconds (while A/T CHECK indicator lamp come on.).

1. Turn ignition switch “OFF”.

2. Push shift lock release button.

3. Move selector lever from “P” to “D” position.

4. Release accelerator pedal. (Set the closed throttle position signal “ON”.)

5. Depress brake pedal. (Stop lamp swit ch signal “ON ”.)

6. Turn ignition switc h “ON”. (Do no t start engine.)

7. Move the select or lever to the “N” position and release brake pedal. (Stop lamp switch signal “OFF”.)

8. Move the selector lever to “D” position and depress brake pedal. (Stop lamp switch signal “ON”.)

9. Release brake pedal. (Stop lamp switch signal “OFF ”.)

10. Depress accelerator pedal ful ly and release it.

>> GO TO 3.

3. CHECK SELF-DIAGNOSIS CODE

Check A/T CHECK indicator lamp. Refer to AT-82, " If the system does not go into self-diagnostics, refer to AT-229, "

Judgement self-diagnosis code" .

TCM Self-diagnosis Does Not Activate" .

>> DIAGNOSIS END

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AT-81

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TROUBLE DIAGNOSIS

Judgement self-diagnosis code

When a malfunction is detected, the malfunction route is indicated by longer illumination of the indicator lamp.

SCIA2758E

Erase self-diagnosis

● In order to make it easier to find the cause of hard-to-duplicate malfunctions, malfunction information is

stored into t he co nt rol un i t as nece ss ar y du rin g u se b y t he us er. This memory is not eras ed no ma tt e r how many times the ignition switch is turned ON and OFF.

● However, this information is erased by tu rning igni tion s wit ch “OFF” a fter e xecu ting self-d iagn ostics or by

erasing the memory using the CONSULT-II.

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AT-82

Page 97

DTC U1000 CAN COMMUNICATION LINE

DTC U1000 CAN COMMUNICATION LINE PFP:23710

Description ECS00A1M

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 malfunction detection ability. Many electronic co ntrol units are eq uipped ont o a vehicle, an d each contro l unit shares in formation an d links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communi cation lines (CA N H line, CAN L line) allowin g a high rate of informa tion transmissio n with less wiring. Each control unit transmits/receives data but selectively reads required data only.

On Board Diagnosis Logic ECS00A1N

● This is an OBD-II self -dia gn os ti c ite m.

● Diagnostic trouble code “CAN COMM CIRCUIT” with CONSULT-II or U1000 without CONSULT-II is

detected when TCM cannot communicate to other control units.

Possible Cause ECS00A1O

Harness or connectors (CAN communication line is open or shorted.)

DTC Confirmation Procedure ECS00A1P

NOTE: If “DTC Confirmation Procedure” has been previ ously performed, always tu rn ignition switch “OFF ” and wait at least 10 seconds before performing the next test.

After the repair, perform the following procedure to confirm the malfunction is elimin ated.

WITH CONSULT -II

1. Turn ignition switc h “ON”. (Do no t start engine.)

2. Select “A/T” with “DATA MONITOR” mode in CONSULT-II.

3. Start engine.

4. Drive vehicle and maintain the following condition for at least 6 seconds.

SLCT LVR POSI: “D” position

5. If DTC is detected, go to AT-85, "

Diagnostic Procedure " .

BCIA0030E

WITH GST

Follow the procedure “WITH CONSULT-II”.

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AT-83

Page 98

DTC U1000 CAN COMMUNICATION LINE

Wiring Diagram — AT — CAN ECS00A1Q

BCWA0478E

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AT-84

Page 99

DTC U1000 CAN COMMUNICATION LINE

TCM terminals and data are reference value.

Terminal

3 L CAN H – – 4 P CAN L – –

Wire

color

Item Condition Data (Approx.)

Diagnostic Procedure ECS00A1R

1. CHECK CAN COMMUNICATION CIRCUIT

With CONSULT-II

1. Turn ignition switch “ON” and start engine.

2. Select “SELF-DIAG RESULTS” mode for "A/T" with CONSULTII.

Is any malfunction of the "CAN COMM CIRCUIT" indicated?

Yes >> Print out CONSULT-II screen, GO TO LAN section.

Refer to LAN-7, "

No >> INSPECTION END

CAN COMMUNICATION" .

SCIA2818E

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AT-85

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DTC P0500 VEHICLE SPEED SENSOR MTR

DTC P0500 VEHICLE SPEED SENSOR MTR PFP:24814 Description ECS00A1S

The vehicle speed sensor·MTR signal is transmitted from unified meter and A/C amp. to TCM by CAN communication li ne . Th e si gn al f un ct i ons a s an au xi l iar y d ev ic e to t h e re vo lu t ion sen so r wh en i t is ma lf u nc tion i ng . The TCM will then use the vehicle spee d sensor·MTR si gnal.

On Board Diagnosis Logic ECS00A1T

● This is not an OBD-II self-diagnostic item.

● Diagnostic trouble code “VEH SPD SE/CIR-MTR” with CONSULT-II or 15th judgement flicker without

CONSULT-II is detected when TCM does not receive the proper vehicle speed sensor MTR signal (input by CAN communication) from unified meter and A/C amp.

Possible Cause ECS00A 1U

● Harness or connectors

(The signal circuit is open or shorted.)

● Unified meter and A/C amp.

● ABS actuator and electric unit (control unit)

● Wheel sensor

DTC Confirmation Procedure ECS00A1V

CAUTION:

Always drive ve hicle at a safe speed. NOTE:

If “DTC Confirmation Procedure ” has been previously performed, always turn ignition switch “OFF” and wait at least 10 seconds before performing the next test.

After the repair, perform the following procedure to confirm the malfunction is eliminated.

WITH CONSULT-II

1. Turn ignition swit ch “ON” an d sele ct “DATA MONIT OR” mode for “A/T” with CONSULT-II.

2. Start engine.

3. Drive vehicle and maintain the following conditions for at least 5 consecutive se conds.

VHCL/S SE-A/T: 30 km/h (17 MPH) or more ACCELE ANGLE: 10 % or less

4. If DTC is detected, go to AT-87, "

Diagnostic Pr ocedure" .

BCIA0030E

Revision: July 2005 2005 Maxima

AT-86