Nissan Altima 2002 Workshop Manual

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Page 1

Edition: September 2001 Revision: November 2002 Publication No. SM2E-1L31U2

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

MTC

Manual Air Conditioner

Starting & Charging System

Lighting System

Driver Information System

Wiper, Washer & Horn

BCS

Body Control System

LAN

LAN System

Audio Visual & Telephone System

ACS

Auto Cruise Control System

Power Supply, Ground & Circuit Elements

Maintenance

IDX

Alphabetical Index

A B C D E

© 2002 NISSAN NORTH AMERICA, INC. All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any form, or by any means, electronic, mechanical, photo-copying, recording or otherwise, without the prior written permission of Nissan North America, Inc., Gardena, California.

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FOREWORD

This manual contains maintenance and repair procedures for the 2002 NISSAN ALTIMA.

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. (Please photocopy back cover): VEHICLE INFORMATION VIN: Production Date:

Please describe any 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 pagenumber(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,markedwithyourcomments.

DATE: YOUR NAME: POSITION: DEALER: DEALER NO.: ADDRESS: CITY: STATE/PROV./COUNTRY: ZIP/POSTAL CODE:

Page 4

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 2.5L QR

ENGINE)

2002

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 2.5L QR ENGINE)

PFP:00000

Engine Tune-Up Data ELS000ME

Cylinder arrangement In-line 4

Displacement cm Bore and stroke mm (in) 89.0 x 100 (3.50 - 3.94) Valve arrangement DOHC Firing order 1-3-4-2

Number of piston rings

Compression ratio 9.5:1

Compression pressure kPa (kg/cm

Idle speed rpm A/T (in neutral)

Ignition timing (BTDC at idle speed) 15° ± 5°

(cu in)

psi) / 250 rpm

Compression 2 Oil 1

Standard 1,250 (12.8, 182) Minimum 1,060 (10.8, 154) Differential limit between cylinders 98 (1.0, 14)

2,488 (151.82)

700 ± 50

CO% at idle Radiator cap relief pressure

kPa (kg/cm

Cooling system leakage testing pressure kPa (kg/cm2 ,

psi)

Standard 79 – 98 (0.8 – 1.0, 11 – 14) Limit 59 (0.6, 9)

0.3 – 9.5% and engine runs smoothly

157 (1.6, 23)

Drive Belt Deflection and Tension

Tension of drive belts

Auto adjustment by auto-tensioner

Spark Plugs (Double Platinum Tipped)

Standard PLFR5A-11

Type

Plug gap Nominal: 1.1 mm (0.043 in)

Hot PLFR4A-11 Cold PLFR6A-11

Front Wheel Alignment (Unladen*1) ELS000MF

Tire size 205/65R16 215/55R17 Camber

Degree minute (Decimal degree)

Caster Degree minute (Decimal degree)

Kingpin inclination Degree minute (Decimal degree)

Page 5

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 2.5L QR

ENGINE)

2002

Tire size 205/65R16 215/55R17 Tota l 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 mats in designated positions. *2: On power steering models, wheel turning force (at circumference of steering wheel) of 98 to 147 N (10 to 15 kg, 22 to 33 lb) with engine idle.

Inside Degree minute (Decimal degree)

Outside Degree minute (Decimal degree)

Minimum −0.5 (−0.02) Nominal 0.5 (0.02) Maximum 1.5 (0.06) Minimum −4′ (−0.07°) Nominal 2′ (0.03°) Maximum 8′ (0.13°) Minimum 34°30′ (34.5°)32°00′ (32.0°) Nominal 38°00′ (38.0°)35°30′ (35.5°) Maximum 39°00′ (39.0°)36°30′ (36.5°)

Nominal 30°30′ (30.5°)29°00′ (29.0°)

Rear Wheel Alignment (Unladen*) ELS000MG

Camber Degree minute (Decimal degree)

Tota l toe-in Distance (A − B)

mm (in)

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

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

Minimum −0°04′ (−0.07°) Nominal −0°34′ (−0.57°) Maximum 0°64′ (-1.07°) Minimum 2.4 (0.09) Nominal 3.9 (0.15) Maximum 5.4 (0.21) Minimum 6′ (0.1°) Nominal 10′ (0.167°) Maximum 14′ (0.233°)

Brake ELS000MH

Unit: mm (in)

Brake model CLZ25VD disc brake

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 DOT 3

Cylinder bore diameter 57.2 (2.252) Pad Length × width × thickness 125.6 × 46 × 11 (4.94 × 1.81 × 0.43) Rotor outer diameter × thickness 296 × 26 (11.65 × 1.02) Brake model AD9V disc brake Cylinder bore diameter 34.9 (1.3740) Pad Length × width × thickness 89.1 × 39.5 × 10 (3.508 × 1.555 × 0.31) Rotor outer diameter × thickness 292 × 9 (11.50 × 0.35)

Booster model M215T

Diaphragm diameter

Primary 230 (9.06) Secondary 205 (8.07)

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QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 2.5L QR

ENGINE)

2002

Disc Brake - Repair Limits

Unit: mm (in) Brake model CLZ25VD (Front) AD9V (Rear) Pad wear limit Minimum thickness 2.0 (0.079) 1.5 (0.059)

Rotor repair limit

Brake Pedal

Free height “H”*

Clearance “C” between pedal stopper and threaded end of stop lamp switch or ASCD switch 0.74 - 1.96 (0.0291 - 0.0772)

*: Measured from surface of dash reinforcement panel to surface of pedal pad

Maximum runout 0.07 (0.0028) 0.07 (0.0028) Minimum thickness 22.0 (0.866) 8.0 (0.31)

Unit: mm (in)

M/T 164.1 - 174.1 (6.46 - 6.85) A/T 173.1 - 183.1 (6.81 - 7.21)

Refill Capacities ELS000MI

Engine Coolant Capacity (Approximate)

Unit:

(US qt) Drain and refill (without reservoir) 6.9 (7 1/4) Reservoir tank (at MAX level) 0.7 (3/4)

Engine Oil Capacity (Approximate)

Unit:

Drain and refill

Dry engine (engine overhaul) 4.6 (4 7/8)

With oil filter change 4.2 (4 1/2) Without oil filter change 4.0 (4 1/4)

Miscellaneous Capacity (Approximate)

System description Metric measurement US measurement Fuel tank Power steering system

Transaxle

Air conditioning system

75.5

1.0 M/T (RS5F51A) A/T (RE4F04B) Refrigerant 0.475 - 0.525 kg 1.045 - 1.155 lb Compressor oil 150 ml 5.03 fl oz

2.3

9.2

20 gal 2 1/8 pt 2 3/8 qt 9 3/4 qt

(US qt)

Page 7

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 3.5L, VQ

ENGINE)

2002

QUICK REFERENCE CHART: AL TIMA (EQUIPPED WITH 3.5L, VQ ENGINE)

PFP:00027

Engine Tune-Up Data ELS000MJ

Cylinder arrangement V-6 Displacement cm

Bore and stroke mm (in) 95.5 x 81.4 (3.76 - 3.205) Valve arrangement DOHC Firing order 1-2-3-4-5-6

Number of piston rings

Number of main bearings 4 Compression ratio 10.0:1

Compression pressure kPa (kg/cm

Idle speed rpm No-load*1 (in “P” or N” position)

Ignition timing (BTDC at idle speed) 15° ± 5°

psi) / 250 rpm

(cu in)

Compression 2 Oil 1

Standard 1,275 (13.0, 185) Minimum 981 (10.0, 142) Differential limit between cylinders 98 (1.0, 14)

3,498 (213.45)

700 ± 50

CO% at idle Radiator cap relief pressure

kPa (kg/cm

Cooling system leakage testing pressure kPa (kg/cm2 ,

*1: Under the following conditions:

● Air

● Electric

● Steering

psi)

conditioner switch: OFF

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

wheel: Kept in straight-ahead position

0.7 – 9.9% and engine runs smoothly

Standard 79 – 98 (0.8 – 1.0, 11 – 14) Limit 59 (0.6, 9)

157 (1.6, 23)

Page 8

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 3.5L, VQ

Drive Belt Deflection and Tension

ENGINE)

2002

Alternator, Air conditioner compressor

Power steering oil pump

Deflection adjustment

Limit After adjustment Limit

7.0 (0.28)

11.0 (0.43)

Used belt

4.2 - 4.6

(0.17 - 0.18)

7.3 - 8.0

(0.29 - 0.32)

Unit: mm (in) Tension adjustment

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

After adjustment

730 - 818

(74.5 - 83.5, 164

- 184)

495 - 583

(50.5 - 59.5,

111.3 - 131.1)

Unit: N (kg, lb)

New belt

838 - 926

(85.5 - 94.5, 188

- 208)

603 - 691

(61.5 - 70.5,

135.6 - 155.4)

Spark Plugs (Double Platinum Tipped)

Standard PLFR5A-11

Type

Plug gap Nominal: 1.1 mm (0.043 in)

Hot PLFR4A-11 Cold PLFR6A-11

Front Wheel Alignment (Unladen*1) ELS000MK

Tire size 205/65R16 215/55R17 Camber

Degree minute (Decimal degree)

Caster Degree minute (Decimal degree)

Kingpin inclination Degree minute (Decimal degree)

Tota l toe-in

Distance (A − B) mm (in)

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

Wheel turning angle Full turn*2

Inside Degree minute (Decimal degree)

Outside Degree minute (Decimal degree)

Minimum −1°00′ (−1.00°) Nominal −0°15′ (−0.25°) Maximum 0°30′ (0.50°) Left and right difference 45′ (0.75°) or less Minimum 2°05′ (2.08°) Nominal 2°50′ (2.83°) Maximum 3°35′ (3.58°) Left and right difference 45′ (0.75°) or less Minimum 13°50′ (13.83°) Nominal 14°35′ (14.58°) Maximum 15°20′ (15.33°) Minimum −0.5 (−0.02) Nominal 0.5 (0.02) Maximum 1.5 (0.06) Minimum −4′ (−0.07°) Nominal 2′ (0.03°) Maximum 8′ (0.13°) Minimum 34°30′ (34.5°)32°00′ (32.0°) Nominal 38°00′ (38.0°)35°30′ (35.5°) Maximum 39°00′ (39.0°)36°30′ (36.5°)

Nominal 30°30′ (30.5°)29°00′ (29.0°)

Page 9

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 3.5L, VQ

ENGINE)

2002

Rear Wheel Alignment (Unladen*) ELS000ML

Camber Degree minute (Decimal degree)

Total toe-in Distance (A − B)

mm (in)

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

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

Minimum −0°10′ (−0.17°) Nominal −0°40′ (−0.67°) Maximum -0°70′ (-1.17°) Minimum 2.5 (0.10) Nominal 4.0 (0.16) Maximum 5.5 (0.22) Minimum 6′ (0.1°) Nominal 10′ (0.167°) Maximum 14′ (0.233°)

Brake ELS000MM

Unit: mm (in)

Brake model CLZ25VD disc brake

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 DOT 3

Booster model M215T

Diaphragm diameter

Primary 230 (9.06) Secondary 205 (8.07)

Disc Brake - Repair Limits

Unit: mm (in) Brake model CLZ25VD (Front) AD9V (Rear) Pad wear limit Minimum thickness 2.0 (0.079) 1.5 (0.059)

Rotor repair limit

Maximum runout 0.07 (0.0028) 0.07 (0.0028) Minimum thickness 22.0 (0.866) 8.0 (0.31)

Brake Pedal

Unit: mm (in)

Free height “H”*

Clearance “C” between pedal stopper and threaded end of stop lamp switch or ASCD switch 0.74 - 1.96 (0.0291 - 0.0772)

*: Measured from surface of dash reinforcement panel to surface of pedal pad

M/T 164.1 - 174.1 (6.46 - 6.85) A/T 173.1 - 183.1 (6.81 - 7.21)

Page 10

QUICK REFERENCE CHART: ALTIMA (EQUIPPED WITH 3.5L, VQ

ENGINE)

2002

Refill Capacities

Engine Coolant Capacity (Approximate)

Unit:

Drain and refill (without reservoir) 7.5 (7 7/8) Reservoir tank (at MAX level) 0.7 (3/4)

Engine Oil Capacity (Approximate)

Unit:

Drain and refill

Dry engine (engine overhaul) 5.0 (5 1/4)

Miscellaneous Capacity (Approximate)

System description Metric measurement US measurement Fuel tank Power steering system

Transaxle

Air conditioning system

M/T (RS5F51A) A/T (RE4F04B)

Refrigerant 0.475 - 0.525 kg 1.045 - 1.155 lb Compressor oil 150 ml 5.03 fl oz

With oil filter change 4.0 (4 1/4) Without oil filter change 3.7 (3 7/8)

75.5

1.0

2.3

9.2

20 gal 2 1/8 pt 2 3/8 qt 9 3/4 qt

(US qt)

ELS000MN

Page 11

Attachment No.18

QR25DE

TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)

The following is the information specified in Mode 6 of SAE J1979. The test value is a parameter used to determine whether a system/circuit diagnostic test is “OK” or “NG” while

being monitored by the ECM during self-diagnosis. The test limit is a reference value which is specified as the maximum or minimum value and is compared with the test value being monitored. Items for which these data (test value and test limit) are displayed are the same as SRT code items. These data (test value and test limit) are specified by Test ID (TID) and Component ID (CID) and can be displayed on the GST screen.

SRT item Self-diagnostic test item DTC

CATALYST Three way catalyst function (Bank 1)

EVAP control system (Small leak)

EVAP SYSTEM

HO2S

HO2S HTR

EGR SYSTEM

★

１：Except models L31 QR25DE engine 2002MY and L31 QR25DE engine 2003MY.

EVAP control system purge flow monitoring P0441 06H 83H Min. X mV

EVAP control system (Very small leak)

Heated oxygen sensor 1

Heated oxygen sensor 2

Heated oxygen sensor 1 heater

Heated oxygen sensor 2 heater

★

EGR function

EGRC-BPT valve function

P0420 01H 01H Max. X P0420 02H 81H Min. X P0442 05H 03H Max. X P1442 05H 03H Max. X -

P0456 07H 03H Max. X P1456 07H 03H Max. X P0133 09H 04H Max. X ms P1143 0AH 84H Min. X mV P1144 0BH 04H Max. X mV P0132 0CH 04H Max. X mV P0134 0DH 04H Max. X s P0139 19H 86H Min. X mV/500ms P1147 1AH 86H Min. X mV P1146 1BH 06H Max. X mV P0138 1CH 06H Max. X mV P0032 29H 08H Max. X mV P0031 2AH 88H Min. X mV P0038 2DH 0AH Max. X mV P0037 2EH 8AH Min. X mV P0400 31H 8CH Min. X ℃ P0400 32H 8CH Min. X ℃ P0400 33H 8CH Min. X ℃ P0400 34H 8CH Min. X ℃ P1402 35H 0CH Max. X ℃ P0402 36H 0CH Max. X P0402 37H 8CH Min. X -

Test value

(GST display)

TID CID

Te s t limit Application Unit

Applicable ･: Not applicable

Page 12

Attachment No.19

VQ35DE

TEST VALUE AND TEST LIMIT (GST ONLY — NOT APPLICABLE TO CONSULT-II)

The following is the information specified in Mode 6 of SAE J1979. The test value is a parameter used to determine whether a system/circuit diagnostic test is “OK” or “NG” while

SRT item Self-diagnostic test item DTC

CATALYST

EVAP SYSTEM

HO2S

HO2S HTR

EGR SYSTEM

★

１：Except models L31 VQ35DE engine, F50 VK45DE engine, Y34 VK45DE engine 2

Three way catalyst function (Bank 1)

Three way catalyst function (Bank 2)

EVAP control system (Small leak)

EVAP control system purge flow monitoring P0441 06H 83H Min. X mV

EVAP control system (Very small leak)

Heated oxygen sensor 1(Bank 1)

Heated oxygen sensor 1(Bank 2)

Heated oxygen sensor 2(Bank 1)

Heated oxygen sensor 2(Bank 2)

Heated oxygen sensor 1 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

Heated oxygen sensor 2 heater(Bank 1)

Heated oxygen sensor 2 heater(Bank 2)

★

EGR function

EGRC-BPT valve function

P0420 01H 01H Max. X P0420 02H 81H Min. X P0430 03H 02H Max. X P0430 04H 82H Min. X P0442 05H 03H Max. X P1442 05H 03H Max. X -

P0456 07H 03H Max. X P1456 07H 03H Max. X P0133 09H 04H Max. X ms P1143 0AH 84H Min. X mV P1144 0BH 04H Max. X mV P0132 0CH 04H Max. X mV P0134 0DH 04H Max. X s P0153 11H 05H Max. X ms P1163 12H 85H Min. X mV P1164 13H 05H Max. X mV P0152 14H 05H Max. X mV P0154 15H 05H Max. X s P0139 19H 86H Min. X mV/500ms P1147 1AH 86H Min. X mV P1146 1BH 06H Max. X mV P0138 1CH 06H Max. X mV P0159 21H 87H Min. X mV/500ms P1167 22H 87H Min. X mV P1166 23H 07H Max. X mV P0158 24H 07H Max. X mV P0032 29H 08H Max. X mV P0031 2AH 88H Min. X mV P0052 2BH 09H Max. X mV P0051 2CH 89H Min. X mV P0038 2DH 0AH Max. X mV P0037 2EH 8AH Min. X mV P0058 2FH 0BH Max. X mV P0057 30H 8BH Min. X mV P0400 31H 8CH Min. X ℃ P0400 32H 8CH Min. X ℃ P0400 33H 8CH Min. X ℃ P0400 34H 8CH Min. X ℃ P1402 35H 0CH Max. X ℃ P0402 36H 0CH Max. X P0402 37H 8CH Min. X -

Test value

(GST display)

TID CID

Te s t limit Application Unit

Applicable ･: Not applicable

Page 13

B ENGINE

ACC

SECTION ACC

ACCELERA T OR CONTROL SYSTEM

CONTENTS

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

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

SERVICE DATA AND SPECIFICATIONS (SDS) ........4

Accelerator Control ...................................................4

PEDAL TRAVEL ....................................................4

ACC-1

Page 14

ACCELERATOR CONTROL SYSTEM

ACCEL ER ATOR CONTROL SYSTEM

PFP:18005

Removal and Installation EBS008QZ

1. Disconnect the accelerator position sensor electrical connector. a. Pull the connector lock back to unlock the connecto r from the

accelerator pedal position sensor as shown.

b. Pull up o n the connector to disconnect it from the accelerator

pedal position sensor as shown.

LBIA0075E

2. Remov e the upper and lower accelerator pedal nuts.

LBIA0060E

3. Remov e the accelerator pedal and accelerator position sensor assembly. a. Do not disass emble the pedal assembly. Do not remove the accele rator pedal position sensor from the

pedal assembly. b. Avoid impact from dropping during handling. c. Keep the pedal assembly away from water. d. For electrical inspection of the accelerator pedal position sensor. Refer to EC-49, "

Accelerator Pedal

Released Position Learning" .

ACC-2

Page 15

ACCELERATOR CONTROL SYSTE M

4. Installation should be performed in the reverse procedure of removal.

● When the harness connector of the accelerator peda l position

sensor is disconnected , perform the "Accelerator pedal position released learning". Refer to EC-49, "

Released Position Learning" .

● Check the accelerator pedal for smooth operation. There

should be no binding or sticking wh en applying or releasing the accelerator pedal.

● Check that the accelerator pedal mov e s through the full spec-

ified distance of pedal travel.

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

Accelerator Pedal

ACC

LBIA0061E

LBIA0062E

ACC-3

Page 16

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SP ECIFICATIONS (SDS)

PFP:00030

Accelerator Control EBS008R0

PEDAL TRAVEL

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

ACC-4

Page 17

K ELECTRICAL

SECTION ACS

AUTO CRUISE CONTROL SYSTEM

CONTENTS

AUTOMATIC SPEED CONTROL DEVICE (ASCD) ..... 2

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

ACS

ACS-1

Page 18

AUTOMATI C SPEED CONTROL DEVIC E (ASCD)

AUTOMATIC SPEED CONTROL DEVICE (ASC D)

PFP:18930

Description EKS002L4

Regarding the information for ASCD system, refer to EC-628, "AUTOMATIC SPEED CONTROL DEVICE

(ASCD)" (QR engine models), EC -1286, "AUTOMATIC SPEED CONTROL DEVICE (ASCD)" (VQ en gine

models).

ACS-2

Page 19

C TRANSMISSION/TRANSAXLE

SECTION AT

CONTENTS

TROUBLE DIAGNOSIS - INDEX ................................ 5

Alphabetical & P No. Index for DTC . ........................ 5

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 .............................................................. 7

Service Noti ce or Pre ca u ti o ns ........... .............. ......... 9

Wiring Diagrams and Trouble Diagnosis ................ 10

PREPARATION ..........................................................11

Special Service Tools .............................................. 11

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

OVERALL SYSTEM ................................................. 15

A/T Electrical Parts Location .................................. 15

Circuit Diagra m ........... ........................................... 16

Cross-secti o n al View .............................................. 17

Hydraulic Control Circuit ........................................ 18

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

Control System ....................................................... 28

Control Mechanism ................................................ 30

Control Va lve .......................................................... 34

ON BOARD DIAGNOSTIC SYSTEM DESCRIP-

TION .......................................................................... 36

Introduction ............................................................ 36

OBD-II Function for A/T System ............................. 36

One or Two Trip Detection Logic of OBD-II ............ 36

OBD-II Diagnostic Trouble Code (DTC) ................. 36

Malfunction Indicator Lamp ( MIL) ........................... 40

CONSULT-II ........................................................... 40

Diagnostic Procedure Without CONSULT-II ........... 50

TROUBLE DIAGNOSIS - INTRODUCTION ............. 55

Introduction ............................................................ 55

Work Flow .............................................................. 59

TROUBLE DIAGNOSIS - BASIC INSPECTION ...... 61

A/T Fluid Check ...................................................... 61

Stall Test ................................................................. 61

Line Pressure Test ........... .............. ........................ 65

Road Test ............................................................... 66

AUTOMATIC TRANSAXLE

TROUBLE DIAGNOSIS - GENERAL DESCRIP-

TION .......................................................................... 82

Symptom Chart .......................................................82

TCM Terminal s and Reference Value .. ................... 92

CAN Communication .............................................. 95

TROUBLE DIAGNOSIS FOR POWER SUPPLY ....100

Wiring Diagra m — AT — MAIN ............................100

Diagnostic Procedure ...........................................101

DTC P0705 PARK/NEUTRAL POSITION SWITCH .103

Description ............................................................103

On Board Diagnosis Logic ....................................103

Possible Cause .....................................................103

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................103

Wiring Diagra m — AT — PNP/SW .......................105

Diagnostic Procedure ...........................................106

DTC P0710 A/T FLUID TEMPERAT URE SENSOR

CIRCUIT ..................................................................109

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

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

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................109

Wiring Diagra m — AT — FTS ...............................111

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

DTC P0720 VE HICLE SPEED SEN SOR·A/ T (REV -

OLUTION SENSOR) ...............................................115

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

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

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................115

Wiring Diagram — AT — VSSA/T ........................117

Diagnostic Procedure ...........................................118

DTC P0725 ENGINE SPEED SIGNAL ............ .......120

Description ............................................................120

On Board Diagnosis Logic ....................................120

Possible Cause .....................................................120

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................120

AT-1

Page 20

Wiring Dia gram — AT — ENGSS .........................121

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

DTC P0731 A/T 1ST GEAR FUNCTION .................124

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

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

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................124

Wiring Dia gram — AT — 1ST ...............................126

Diagnostic Procedure ...........................................127

DTC P0732 A/T 2ND GEAR FUNCTION ................129

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

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

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................129

Wiring Dia gram — AT — 2ND ..............................131

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

DTC P0733 A/T 3RD GEAR FUNCTION ................134

Description ............................................................134

On Board Diagnosis Logic ....................................134

Possible Cause .................................... .................134

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................134

Wiring Dia gram — AT — 3RD ..............................136

Diagnostic Procedure ...........................................137

DTC P0734 A/T 4TH GEAR FUNCTION ................139

Description ............................................................139

On Board Diagnosis Logic ....................................139

Possible Cause .................................... .................139

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................139

Wiring Dia gram — AT — 4TH ...............................141

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

DTC P0740 TORQUE CONVERTER CLUTCH

SOLENOID VALVE ...... .............. .............................146

Description ............................................................146

On Board Diagnosis Logic ....................................146

Possible Cause .................................... .................146

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................146

Wiring Dia gram — AT — TCV ..............................148

Diagnostic Procedure ...........................................149

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .151

Description ............................................................151

On Board Diagnosis Logic ....................................151

Possible Cause .................................... .................151

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................151

Wiring Dia gram — AT — TCCSIG ........................153

Diagnostic Procedure ...........................................154

DTC P0745 LINE PRESSURE SOLENOID V ALVE .159

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

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

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................159

Wiring Diagram — AT — LPSV ............................161

Diagnostic Procedure ...........................................162

DTC P0750 SHIFT SOLENOID VA LVE A ...............165

Description ............................................................165

On Board Diagnosis Logi c ..... ...............................165

Possible Cause .....................................................165

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................165

Wiring Diagram — AT — SSV/A ...........................167

Diagnostic Procedure ............................................168

DTC P0755 SHIFT SOLENOID VA LVE B ...............170

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

On Board Diagnosis Logi c ..... ...............................170

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................170

Wiring Diagram — AT — SSV/B ...........................172

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

DTC P1705 THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SEN-

SOR] ........................................................................175

Description ............................................................175

On Board Diagnosis Logi c ..... ...............................175

Possible Cause .....................................................175

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................175

Wiring Diagram — AT — TPS ...............................177

Diagnostic Procedure ............................................178

DTC P1760 OVERRUN CLUTCH SOLENOID

VALVE ......................................................................180

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

On Board Diagnosis Logi c ..... ...............................180

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

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................180

Wiring Diagram — AT — OVRCSV ......................182

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

DTC U1000 CAN COMMUNICAT ION LINE ............185

Description ............................................................185

On Board Diagnosis Logi c ..... ...............................185

Possible Cause .....................................................185

DTC Confirmation Procedure ........ ........................185

Wiring Diagram — AT — CAN ..............................187

Diagnostic Procedure ............................................188

DTC BATT/FLUID TE MP S EN ( A /T FLU I D TE M P SENSOR CIRCUIT AND TCM POWER SOURCE) .189

Description ............................................................189

On Board Diagnosis Logi c ..... ...............................189

Possible Cause .....................................................189

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................189

Wiring Diagram — AT — BA/FTS .........................191

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

DTC VEHICLE SPEED SENSOR MTR ................... 196

Description ............................................................196

On Board Diagnosis Logi c ..... ...............................196

Possible Cause .....................................................196

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure ...................................................................196

Wiring Diagram — AT — VSSMTR .......................198

Diagnostic Procedure ............................................199

AT-2

Page 21

DTC TURBINE REVOLUTION SENSOR ............... 200

Description ........................................................... 200

Wiring Diagram — AT — TRSA/T ........................ 202

Diagnostic Procedure ........................................... 203

Component Inspection ......................................... 204

DTC CONTROL UNIT (RAM), CONTROL UNIT

(ROM) ..................................................................... 205

Description ........................................................... 205

On Board Diagnosis Logic ................................... 205

Possible Cause .................................................... 205

Diagnostic Trouble Code (DTC) Confirmation Pro-

cedure .................................................................. 205

Diagnostic Procedure ........................................... 206

DTC CONTROL UNIT (EEP ROM) ......................... 207

Description ........................................................... 207

Diagnostic Procedure ........................................... 208

TROUBLE DIAGNOSIS FOR SYMPTOM S ............ 209

Wiring Diagram — AT — NONDTC ...................... 209

1. A/T Check (Position) Indicator Lamp Does Not

Come On .............................................................. 213

2. Engine Cannot Be Started In P and N Position . 214

3. In P Position, Vehicle Moves Forward or Back-

ward When Pushed .............................................. 215

4. In N Position, Vehicle Moves ............................ 215

5. Large Shock. N → R Position ......... .............. ... 217

6. Vehicle Does Not Creep Backward In R Position . 219

7. Vehicle Does Not Creep Forward in D, 3, 2 or 1

Position ................................................................ 222

8. Vehicle Cannot Be Started From D

9. A/T Does Not Shift: D down: D

4 → D2 ..................................................... 227

10. A/T Does Not Shift: D

11. A/T Does Not Shift: D

1 → D2 or Does Not Kick-

2 → D3 ......................... 229

3 → D4 .......................... 231

1 ................. 224

12. A/T Does Not Perform Lock-up ...................... 234

13. A/T Does Not Hold Lock-up Condition ........... 235

14. Lock-up Is Not Re leased ................................ 236

15. Engine Speed Does Not Return To Idle (Light Braking D

16. Vehicle Does Not Start From D

17. A/T Does Not Shift: D

4 → D3 ) ................................................ 237

1 ..................... 239

4 → 3 3 , When A/T Selector

Lever D → 3 ......................................................... 239

18. A/T Does Not Shift: 3

3 → 22 , When Selector

Lever 3 → 2 Position ............................................ 240

19. A/T Does Not Shift: 2

2 → 11 , When Selector

Lever 2 → 1 Position ............................................ 240

20. Vehicle Does Not Decelerate By Engine Brake . 241

21. TCM Self-diagnosis Does Not Activate (PNP & 3 Position Switches Circuit Checks), and Throttle Position Se nsor [Accelerat or Pedal Position (APP)

Sensor] Circuit Check .......................................... 242

A/T SHIFT LOCK SYSTEM .................................... 247

Description ........................................................... 247

Shift Lock System Electrical Parts Location ......... 247

Wiring Diagram — SHIFT — ................................ 248

Shift Lock Control Unit Reference Values ............ 250

Component Inspection ......................................... 250

SHIFT CONTROL SYSTEM ........... ........................ 253

Control Device ...................................................... 253

Control Cable ....................................................... 254

ON-VEHICLE SERVICE .................. ........................255

Control Valve Assembly and Accumulators ..........255

Revolution Sensor Replacement ..........................257

Turbine Revolution Sensor Replacement .............257

Park/Neutr al Po si tion (PNP) Switch Adjustment ..257

Control Cable Adjustment .....................................258

Differential Side Oil Seal Replacement ................258

REMOVAL AND INSTALLATION ...........................260

Removal ...............................................................260

Installation ............................................................261

OVERHAUL ............................................................263

Components .........................................................263

Oil Channel ...........................................................266

Locations of Adjusting Shims, Needle Bearings,

Thrust Washe r s and Sn a p Rings ..........................267

DISASSEMBLY .......................................................268

Disassembly .........................................................268

REPAIR FOR COMPONENT PARTS .....................283

Manual Shaft ........................................................283

Oil Pump ...............................................................286

Control Valve Assembly ........................................290

Control Valve Upper Body ....................................299

Control Valve Lower Body ....................................303

Reverse Clutch .....................................................305

High Clutch ...........................................................308

Forward and Overrun Clutches ............................313

Low & Reverse Brake .......... .................................319

Rear Internal Gear, Forward Clutch Hub and Over-

run Clutch Hub ......................................................322

Output Shaft, Idler Gear, Reduction Pinion Gear and

Bearing Retainer ...................................................326

Band Servo Pi ston Assembly ...............................331

Final Drive .................................... ........................336

ASSEMBLY .............................................................341

Assembly (1) .........................................................341

Adjustment (1) ............................................... .......342

Assembly (2) .........................................................347

Adjustment (2) ............................................... .......354

Assembly (3) .........................................................357

SERVICE DATA AND SPECIFICATIONS (SDS) ....364

General Specifications ..........................................364

Shift Schedule ......................................................364

St a ll Revolution ...... ............................ ...................365

Line Pressure .......................................................365

Control Valves ................................. .....................365

Accumulator ..........................................................366

Clutch and Brakes ................................................366

Final Drive .................................... ........................369

Planetary Car r ier a nd Oil Pump ............................370

Input Shaft ............................................................370

Reduction Pinion Gear .........................................371

Band Servo .................................................. .........371

Output Shaft .........................................................372

Bearing Retainer ...................................................372

Total End Play .............................................. .........372

Reverse Clutch End Play ......................................373

Removal and Insta llation ....... ...............................373

Shift Solenoid Valves ............................................373

Solenoid Valves ....................................................373

AT-3

Page 22

A/T Fluid Temperature Sensor ..............................373

Revolution Sensor ................................................373

Dropping Resistor .................................................373

Turbin e Revolution Sensor ....................................374

AT-4

Page 23

TROUBLE DIAGNOSIS - IND EX

TROUBLE DIAGNOSIS - INDEX PFP:00000

Alphabetical & P No. Index for DTC ECS004QN

ALPHABETICAL INDEX F OR DTC

Items

(CONSULT-II screen te rms)

A/T 1ST GR FNCTN P0731 AT-124 A/T 2ND GR FNCTN P0732 AT-129 A/T 3RD GR FNCTN P0733 AT-134 A/T 4TH GR FNCTN P0734 AT-139 A/T TCC S/V FNCTN P0744 AT-151 ATF TEMP SEN/CIRC P0710 AT-109 ENGINE SPEED SIG P0725 AT-120 L/PRESS SOL/CIRC P0745 AT-159 O/R CLTCH SOL/CIRC P1760 AT-180 PNP SW/ C IRC P0705 AT-103 SFT SOL A/CIRC* 2 P0750 AT-165 SFT SOL B/CIRC* 2 P0755 AT-170 TCC SOLENOID/CIRC P0740 AT-146 TP SEN/CIRC A/T*2 P1705 AT-175 VEH SPD SEN/ C I R AT*3 P0720 AT-115 CAN COMM CIRCUIT U1000 AT-185

*1: These numbers are prescribed by SAE J2012. *2: When the fail-safe operation occurs, the MIL illuminates. *3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at the same time.

DTC

CONSULT-II

GST*1

Reference page

AT-5

Page 24

TROUBLE DIAGNOSIS - INDEX

P NO. INDEX FOR DTC

DTC

CONSULT-II

GST*1 P0705 PNP SW/CIRC AT-103 P0710 ATF TEMP SE N/CIRC AT-109 P0720 VEH SPD SEN/CIR AT*3 AT-115 P0725 ENGINE SPEED SIG AT-120 P0731 A/T 1ST GR F N CTN AT-124 P0732 A/T 2ND GR FNCTN AT-129 P0733 A/T 3RD GR FNCTN AT-134 P0734 A/T 4TH GR FNCTN AT-139 P0740 TCC SOLENOID/CIRC AT-146 P0744 A/T TCC S/V FNCTN AT-151 P0745 L/PRESS SOL/CIRC AT-159 P0750 SFT SOL A/CIRC*2 AT-165 P0755 SFT SOL B/CIRC*2 AT-170 P1705 TP SEN/CIRC A/T*2 AT-175 P1760 O/R CLTCH SOL/CIRC AT-180 U1000 CAN CO MM CIRCUIT AT-185

*1: These numbers are prescribed by SAE J2012. *2: When the fail-sa fe operation occurs, the MIL illuminates. *3: The MIL illuminates when both the “Revolution sensor signal” and the “Vehicle speed sensor signal” meet the fail-safe condition at the same time.

(CONSULT-II screen terms)

Items

Refe rence page

AT-6

Page 25

PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions f or Supplemental Restraint Syst em (S RS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

ECS004QO

The Sup plemental Restraint Syste m such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along with a fron t seat be lt, hel ps to re duce th e risk or s everity of injur y to th e dr iver and fro nt pass enge r for cer tain types of collision. 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 inoperative, which could increase the risk of personal injury or death

in the eve nt of a collision whic h would result in air bag inflation, all mai ntenance must be performed by an authorized NISSAN/INFINITI dealer.

● Improper mai ntenance, includin g incorrect removal an d installation of the SRS , can lead to per-

sonal injury caus ed by unin te ntional activati on of th e system . For rem oval of Spiral Cab le an d Air Bag Module, see the SRS section.

● Do not use electrica l test equipm ent on any circ uit related to the S RS unless in structed to in this

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

Precautions for On Board Diagnostic (OBD) System of A/T and Engin e ECS004QP

The ECM ha s an on board diagnostic system . It will light up the malfun ction indica tor lamp (MIL) to warn the driver of a malfunction causing emission deterioration.

CAUTION:

● Be sure t o turn the ig nition switc h OFF and disconnect the negative b attery termina l before any

repair or inspection work. The open/short circuit of related switches, sen sors, 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 ro ute and sec ure the harnes ses prope rly a fter wo rk. Int erferenc e of the harn ess with a

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

● Be sure t o conn ec t rubb er tub es p rope rl y afte r wo r k. A mi sco nne cte d o r di s conn ec t ed r ubb er tub e

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

● Be sure to erase the unneces sary malfunction information (repairs completed) from the TCM or

ECM before returning the vehicle to the customer.

Precautions ECS004QQ

● Before connecting or disconnecting the TCM harness con-

nector, turn ignition switch OFF and disconnect negative battery terminal. Failure to do so may damage the TCM. Because b attery voltage is a pplied to TCM even if ign ition switch is turned off.

SEF289H

AT-7

Page 26

PRECAUTIONS

● When co nnecting or disconne cting pin connectors in to or

from TCM, take care not to damage pin terminals ( bend or break). Make sure that t here are not any ben ds or breaks on T CM pin terminal, when connecting pin connectors.

● Before replacing TCM, perform TCM input/output signal

inspection and make su re whether TCM funct ions properly or not. Ref e r to AT-29, "

INPUT/OUTPUT SIGNAL OF TCM" .

AAT470A

MEF040DA

● After performing each TROUBLE DIAGNOSIS, perform

“DTC (Diagnostic Trouble Code) CONFIRMATION PROCEDURE”. The DTC should no t be displayed in the “DTC CONFI RMATION PROCEDURE” if t he repair is completed.

● Before p roceeding with disassemb ly, thoroughly clean the out-

side of the transaxle. It is important to prevent the internal parts from becoming contaminated by dirt or other foreign matter.

● Disassembly should be done in a clean work area.

● Use lint-free cloth or towels for wiping parts clean. Common

shop rags can leave fibers that could interfere with the operation

SAT964I

of the transaxle.

● Place disassembled parts in order for easier and proper assembly.

● All parts should be carefully clea ned with a general pur pose, non-flam mable solve nt before inspec tion 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 body contains precision parts and requires extreme care when parts are removed and serviced.

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

● Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

● Before assem bly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to pr otect O-rings

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

● Extreme c are should be taken to avoid damage to O-rings, seals and gas kets when assembling.

● Replace ATF cooler if excessive f oreign material is fo und in oil pan or cl ogging strainer. Refer to AT-9,

"AT F COOLER SERVICE" .

● After overhaul, refill the transaxle with new ATF.

● When the A/T drai n plug is removed, only some of the fluid is drai ned. Old A/T fluid wil l remain in torque

converter and ATF cooling system. Always follow the procedures when changing A/T fluid. Refer to MA-29, "

Changing A/T Fluid" .

AT-8

Page 27

PRECAUTIONS

Service Notice or Precautions ECS004QR

FAIL-SAFE

The TCM h as an electr onic Fail-S afe (limp ho me mode) . This allo ws the v ehicle to be driven even i f a major electrical input/output device circuit is damaged. Under Fail -Safe, the vehicle a lways runs in thi rd gear, even with a shift lever position of 1, 2 o r D. The customer may complain of sluggish or poor acceleration. When the ignition key is turned ON following Fail-Safe operation, A/T check (position) indicat or la mp blinks for about 8 seconds. [For “TCM Self-diagnostic Procedure (No Tools)”, refer to AT-51, "

PROCEDURE (NO TOOLS)" .]

The blinking of the A/T check (position) indicator lamp for about 8 seconds will appea r only once and be cleared. The customer may resume normal driving conditions. Always follow the “Work Flow” (Refer to AT-59, "

Work Flow" ).

The SELF-DIAGNOSIS results will be as follows:

● The first SELF-DIAGNOSIS will indicate damage to th e vehicle speed sensor or the revolution sens or.

● During the next SELF-DIAGNOSIS, performed after checking the sensor, no damages will be indicated.

TORQUE CONVERTER SERVICE

The torque converter sho uld be replaced under any of the following conditions:

● External leaks in the hub weld area.

● Converter hub is scored or damaged.

● Converter pilot is broken, damaged or fits poorly into crankshaft.

● Steel particles are found after flushing the cooler and cooler lines.

● Pump is damaged or steel particles are found in the converter.

● Vehicle has TCC shudder and/or no TCC apply. Replace only after all hyd raulic and electr ical diagnose s

have been made. (Converter clutch material may be glazed.)

● Converter is c ontaminated with engine coolant containing antifreeze.

● Internal failu re of stator roller clutch.

● Heavy clutch debris due to ov erheating (bl ue converter).

● Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are

worn or damaged — indicates that lining material came from converter. The torque converter shou ld not be replaced if:

● The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.

● The threads in one or more of the converter bolt holes are damaged.

● Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate

lining material in unit and inside the fluid filter.

● Vehicle has been exposed to high mileage (only). The exception may be where the torque converter

clutch dampen er plat e lining h as se en exc ess wea r by v ehic les oper ate d in heav y and /or con stant traffic, such as taxi, delivery or police use.

ATF COOLER SERVICE

If A/T fluid contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using cleaning solvent and c ompre ssed air after r epair of A/T. Refer to CO-12, "

"RADIATOR" (with VQ35DE).

RADIATOR" (with QR25DE ), or CO-34,

TCM SELF-DIAGNOSTIC

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 chec k (position ) indicator or th e malfunctio n indicator lamp (MIL). Refe r to the table on AT-41

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

for the indicator used to display each self-diagnostic result.

ories.

Always perform the pr oced ure “H OW TO ERASE D TC” on AT-38

to complete the repair and avo id

unnecessary blinking of th e MIL.

● The following s elf-diagnostic items can be detected u sing ECM se lf-diagnostic results mo de* only when

the A/T check (position) indicator lamp does not indicate any malfunctions.

– park/neutral position (PNP) switch – A/T 1st, 2nd, 3rd, or 4th gear function

AT-9

Page 28

PRECAUTIONS

– A/T TCC S/V function (lock-up).

*: For details of OB D-II, re fer to E C-54, "

EC-673, "

● Certain systems and components, especially those related to OBD, may use a new style slide-

ON BOARD DIAGNOSTIC (OBD ) SYSTEM" (with VQ35DE).

ON BOARD DIAGNOSTIC (OBD) SYSTEM" (with QR 25D E), or

locking type harness connector. For description and how to disconnect, refer to GI-22, "

How to Check Terminal" .

Wiring Diagrams and Trouble Diagnosis ECS004QS

When you read wiring diagrams, refer t o the following:

● GI-12, "How to Read Wiring Diagrams"

● PG-3, "POWER SUPPLY ROUTING CIRCUIT"

When you perform trouble diagnosis, refer to the following:

● GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"

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

AT-10

Page 29

PREPARATION

PREPARATION PFP:00002

Special Service T ools ECS004QT

The actual shapes of Kent-M oore tools may differ from those of special service tools illustrated here.

Tool numbe r (Kent-Moore No.) Tool name

KV381054S0 (J34286) Puller

NT414

ST33400001 (J26082) Drift

Description

● Removing differentia l side oil seals

● Removing differentia l side be aring outer

race

● Removing idler gear bearing outer race

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

● Installing differential side oil seal

(RH side)

● Installing oil seal on oil pump housing

a: 60 mm (2.36 in) dia . b: 47 mm (1.85 in) dia.

(J34301-C) Oil pressure gauge set 1 (J34301-1 ) Oil pressure gauge 2 (J34301-2 ) Hoses 3 (J34298) Adapter 4 (J34282-2 ) Adapter 5 (790-301-1230-A) 60° Adapter 6 (J34301-1 5) Square socket

ST27180001 (J25726-A) Puller

ST23540000 (J25689-A) Pin punch

NT086

AAT896

NT424

● Measuring line pressure

● Removing idler gear

a: 100 mm (3.94 in) b: 110 mm (4.33 in) c: M8 x 1.25P

● Removing and installing parking rod plate

and manual plate pins

a: 2.3 mm (0.091 in) dia. b: 4 mm (0.16 in) dia.

ST25710000 (J25689-A) Pin punch

NT442

● Aligni ng groo ve of manu al shaf t and hol e of

transmission case

a: 2 mm (0.08 i n) dia.

NT410

AT-11

Page 30

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

KV32101000 (J25689-A) Pin punch

KV31102400 (J34285 and J34285-87) Clutch spring compressor

KV40100630 (J26092) Drift

PREPARATION

Description

● Removing and installing m anual shaft re-

taining pin

● Removing and installing pinion mate shaft

lock pin

a: 4 mm (0.16 in) dia.

NT410

● Removing and installing clutch return

springs

● Installing low and re verse brake piston

a: 32 0 mm (12.60 in) b: 17 4 mm (6. 85 in)

NT423

● Installing reduction gear bearing inner race

● Installing idler gear bearing inner race

a: 67.5 mm (2.657 in) d ia. b: 44 mm (1.73 in) dia. c: 38.5 mm (1.516 in) d ia.

ST30720000 (J25405 and J34331) Bearing installer

ST35321000 (—) Drift

(J34291-A) Shim setting gauge set

ST33230000 (J25805-01) Drift

NT107

● Installing idler gear bearing outer race

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

NT115

● Installing output shaft bearing

a: 49 mm (1.93 in) dia. b: 41 mm (1.61 in) dia.

NT073

● Selecting oil pump cover bearing race and

oil pump thrust washer

● Selecting side gear thrust washer

NT101

● Installing differentia l side bearing inner race

(RH side)

a: 51 mm (2.01 in) dia. b: 28.5 mm (1.122 in) d ia.

AT-12

NT084

Page 31

PREPARATION

Tool numbe r (Kent-Moore No.) Tool name

(J34290) Shim selecting tool set

ST3306S001 (J22888-D) Differ ent i al si de bearing puller set 1 ST330510 01 (J22888-D) Puller 2 ST330610 00 (J8107-2) Adapter

ST3127S000 (J25765-A) Preload gauge 1 GG91030000 (J25765-A) Torq ue wrench 2 HT62940000 (—) Socket adapter 3 HT62900000 (—) Socket adapter

ST35271000 (J26091) Drift

NT080

AMT153

NT124

Description

● Selecting differential side bearing adjusting

shim

● Removing differentia l side be aring i nner

race

a: 38 mm (1.50 in) dia . b: 28.5 mm (1.122 in) dia. c: 130 mm (5.12 in) d: 135 mm (5.31 in) e: 100 mm (3.94 in)

● Checking differential side bearing preload

● Installing idler gear

a: 72 mm (2.83 in) dia . b: 63 mm (2.48 in) dia.

(J39713) Preload adapter

NT115

NT087

● Selecting differential side bearing adjusting

shim

● Checking differential side bearing preload

AT-13

Page 32

PREPARATION

Commercial Service Tools

Tool nam e Description Puller

NT077

Puller

NT411

Drift

NT083

Drift

● Removing idler gear bearing inner race

● Removing and installing band servo piston

snap ring

● Removing reduction gear bearing inner

race

a: 60 mm (2.36 in) dia. b: 35 mm (1.38 in) dia.

● Installing needle bearing on bearing retain-

a: 36 mm (1.42 in) dia.

● Removing needle bearing from bearing re-

tainer

a: 33.5 mm (1.319 in) d ia.

ECS004QU

Drift

Power tool

NT083

● Installing differ ential side bearing o uter race

(RH side)

a: 75 mm (2.95 in) dia.

NT083

● Removing transaxle assembly

● Removing transaxle oil pan

● Removing transaxle case and cover

PBIC0190E

AT-14

Page 33

OVERALL SYSTEM

OVERALL SY STEM PFP:00000

A/T Electrical Parts Location ECS004QV

AT-15

LCIA0038E

Page 34

OVERALL SY STEM

Circuit Diagram

ECS004QW

AT-16

LCWA0029E

Page 35

OVERALL SYSTEM

Cross-sectional View ECS004QX

1. Band servo piston 2. Reverse clutch drum 3. Converter housing

4. Oil pump 5. Brake band 6. Reverse clutch

7. High clutch 8. Front planetary gear 9. Low one-way clutch

10. Rear planetary gear 11. Forward clutch 12. Overrun clutch

13. Low & reverse brake 14. Output gear 15. Idler gear

16. Forward one-way clutch 17. Pinion reduction gear 18. Final gear

19. Differential case 20. Input shaft 21. Torque converter

22. Side cover

SAT488K

AT-17

Page 36

OVERALL SY STEM

Hydraulic Control Circuit

ECS004QY

AT-18

LCIA0040E

Page 37

OVERALL SYSTEM

Shift Mechan is m ECS004QZ

CONSTRUCTION

SAT998I

1. Torque converter 2. Oil pump 3. Input shaft

4. Brake band 5. Reverse clutch 6. High clutch

7. Front sun gear 8. Front pinion gear 9. Front internal gear

10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear

13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch

16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch

19. Low & reverse brake 20. Parking pawl 21. Parking gear

22. Output shaft 23. Idle gear 24. Output gear

FUNCTION OF CLUTCH AND BRAKE

Clutch and brake components Abbr. Function Reverse clutch 5 R/C To tra nsmit input power to front sun gear 7 . High clutch 6 H/C To transmit input power to front planetary carrier 10 . Forward clutch 15 F/C T o co nn ect front planetary ca rri e r 10 with forward one-way clutch

16 . Overr un clut ch 17 O/C To connect front planetary carrier 10 with rear internal gear 13 . Brake band 4 B/B To lock front sun gear 7 . Forward one-way clutch 16 F/O.C When forward clutch 15 is engag ed , t o s top rear internal ge ar 13

from rotating in opposite direction against engine revolution. Low one-way clutch 18 L/O.C To stop front planetary carrier 10 from rotating in opposite direc-

tion against engine revolution. Low & revers e brake 19 L & R/B To lock front planetary carrier 10 .

CLUTCH AND BAND CHART

Band servo For-

ward one-

way

clutch

Over-

run

clutch

2nd

apply

3rd re-

lease

4th

apply

Re-

Shift p osition

RO O

verse

clutch

High

clutch

For-

ward

clutch

AT-19

Low

one-

way

clutch

Low &

reverse brake

Lock-

Remarks

PARK POSI-

TION

REVERSE POSITION

Page 38

OVERALL SY STEM

Band servo For-

ward one-

way

clutch

Over-

run

clutch

2nd

apply

3rd re-

lease

4th

apply

Re-

Shift position

D*4

*1: Operates when selector lever is set in 3 position. *2: Oil pressure is applied to both 2nd “apply” side and 3rd “release” side of band servo piston. However, brake band does not contract because oil pressure area on the “release” side is greater than that on the “apply” side. *3: Oil pressure is applied to 4th “apply” side in condition *2 above, and brake band contracts. *4: A/T will not shift to 4th when selector lever is set in 3 position. *5: Operates when selector lever is set in 3 position. O: Operates A: Operates when throttle opening is less than 3/16, activating engine brake. B: Operates during “progressive” acceleration. C: Operates but does not affect power transmission. D: Operates when throttle opening is less than 3/16, but does not affect engine brake.

verse

clutch

1st O *1D B B

2nd O *1 A O B

3rd O O *1 A *2C C B *5O 4th O C *3C C O O 1st O D B B Automatic

2nd O A O B

1st O O B O Locks (held

2nd OOO B

High

clutch

For-

ward

clutch

Low one-

way

clutch

Low &

reverse brake

Lock-

Remarks

NEUTRAL POSITION

Automatic

shift

1 ⇔ 2 ⇔ 3

⇔ 4

shift

1 ⇔ 2 ⇐ 3

stati onary) in

1st speed

1 ⇐ 2 ⇐ 3

AT-20

Page 39

POWER TRANSMISSION P and N Positions

OVERALL SYSTEM

● P position

Similar to the N po sition, the cl utche s do not oper ate . The parki ng paw l enga ges wi th the park ing gea r to mechanically hold the output shaft so that the power train i s locked.

● N position

Power from the input shaft i s not transmi tted to the output shaft becau se the clutches do not operate.

SAT991I

AT-21

Page 40

11 Position

OVERALL SY STEM

AAT537A

● Forward clutch

● Forward one-way clutch

● Overrun clutch

● Low and reverse brake

As overrun clutch engages, rear internal gear is locked by the operation of low and reverse brake. This is different from that of D

1 , 21 , and 31 .

Engine brake Overrun clutch always engages, therefore engine brake can be obtained when decelerating.

AT-22

Page 41

D1 and 21 Positions

OVERALL SYSTEM

● Forward one-way clutch

● Forward clutch

● Low one-way clutch

Overr un clutch

engagement conditions (Engine brake)

AAT532A

Rear internal gear is locked to rotate counterclockwise because of the functioning of these three clutc hes.

1 : Gear selector lever is set in 3 p osition and throttle opening is less than 3/16

1 : Always engaged

1 and 21 positions, engine brake is not activated due to free turning of low one-way

At D clutch.

AT-23

Page 42

D2 , 32 , 22 and 12 Positions

OVERALL SY STEM

● Forward clutch

● Forward one-way clutch

● Brake band

Overrun clutch

engagement conditions

AAT533A

Rear sun gear drives rear planetary carrier and combined front internal gear. Front internal gear now rotates around front sun gear accompanying front planetary carrier. As front pl anet ar y carri er tr ansfer s the po wer to r ear int erna l gea r through forw ard c lutch and forward one-way clutch, this rotation of rear internal gear increases the speed of rear planetary carrier compared with that of the 1st speed.

2 : Gear selector lever is set in 3 position and throttle opening is less than 3/16

2 , 22 and 12 : Always engaged

AT-24

Page 43

D3 and 33 Posi tions

OVERALL SYSTEM

● High clutch

● Forward clutch

● Forward one-way clutch

Overr un clutch

engagement conditions

AAT534A

Input power is transmitted to front planetary carrier through high clutch. And front planetary carrier i s connected to rear internal gear by operation of for ward clutch and forward one-way clutch. This rear internal gear rotation and another input (the rear sun gear) accompany rear planetary carrier to turn at the sa me speed.

3 and 33 : Selector lever is set in 3 position and throttle opening is less than 3/16

AT-25

Page 44

D4 Position

OVERALL SY STEM

● High clutch

● Brake band

● Forward clutch (Does not affect

power transmission)

Engine brake At D

Input power is transmitted to front carrier through high clutch. This front carrier turns around the sun gear which is fixed by brake band and makes front internal gear (output) turn faster.

can be obtained when decelerating.

AAT536A

4 position, there is no one-way clutch in the power transmission line and engine brake

AT-26

Page 45

R Position

OVERALL SYSTEM

AAT535A

● Reverse clu tch

● Low and reverse brake

Engine brake As there is no one-way clutch in the power transmission line, engine brake can be obtained

Front planet ary carrier is stationary because of th e operation of low a nd reverse br ake. Input power is trans mitted to front sun gear through reve rse clutch, which drives front internal gear in the opposite direction.

when decelerating.

AT-27

Page 46

OVERALL SY STEM

Control System

ECS004R0

OUTLINE

The automatic tr ansaxle senses v ehicle operating condi tions through variou s sensors. It alwa ys controls the optimum shift position and reduces shifting and lock-up shocks.

SENSORS TCM ACTUATORS

Park/neutral position (PNP) switch Throttle position sensor [accelerator pedal positi on (APP ) sensor] Engine speed signal A/T fluid temperature sensor Revolution sensor (VHCL/S SE-1) Vehicle speed sensor (VHCL/S SE-2) 3 position switch ASCD control unit Stop lamp switch Turbine revolution sensor

Shift control Line pressure control Lock-up control Overrun cl utch control Timing control Fail-safe control Self-diagnosis CAN communication line control

Shift solenoid valve A Shift solenoid valve B Overr un clutch solenoi d valve Torque conve rte r clut ch s ole noid valve Line pressure solenoid valve A/T check (position) indicator lamp

CONTROL S YST E M

AT-28

LCIA0041E

Page 47

OVERALL SYSTEM

TCM FUNCTION

The function of the TCM is to:

● Receive input signals sent from 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.

INPUT/OUTPUT SIGNAL OF TCM

Sensors and sol en oid valves Function

Park/neutral position (PNP) switch Detects select lever position and sends a signal to TCM.

Input

Output

Throttle position sensor [accelerator pedal position (APP) sensor]

Engine speed signal Receives signal from ECM and controls lock-up control solenoid valve. A/T fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM. Revolution sensor (VHCL/S SE-1) Detects output shaft rpm and sends a signal to TCM.

Ve hicle speed sensor (V HC L/S SE-2) 3 position switch Sends a signal, which prohibits a shift to D

ASCD control unit Stop lamp switch Send the lock-up release signal to the TCM at time of D

CAN communic ation

Shift solenoid valve A/B

Line pressure solenoid valve

Torque converter clutch solenoid valve

Overrun clu t ch solenoid valve A/T check (position) indicator lamp Shows TCM faults, when A/T control components malfunction.

CAN communic ation

Detects throttle valve position and sends a signal to TCM.

Used as an auxiliary ve hicle speed sensor. Send s a signal when revolution sensor (installed on transmission) malfunctions.

4 (overdrive) p osition, to the TCM.

Sends the cruise signal and D control unit to TCM.

In CAN communication, control units are connected to 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Selects shifting point suited to driving conditions in relation to a signal sent from TCM.

Regulates (or decreases) line pressure suited to driving conditions in relation to a signal sent from TCM.

Regulate s (or dec reases) lock-up pressur e suited to drivi ng con ditions in relation to a signal sent from TCM.

Controls an “engine brake” effect suited to driving conditions in relation to a signal sent from TCM.

In CAN communication, control units are connected to 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

4 (overdrive) cancellation signal from ASCD

4 (lock-up).

AT-29

Page 48

OVERALL SY STEM

Control Mech anis m

ECS004R1

LINE PRESSURE CONTROL

TCM has various line pressure control characteristics to meet the driving conditions. An ON-OFF duty signal is s ent to the line pressure solenoid valve based on TCM characteristics. Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid valve to accommodate engine torque. This results in smooth shift operation.

Normal Control

The line pressure to throttle opening characteristics is set for suitable clutch operation.

SAT003J

Back-up Control (Engine brake)

If the selector lever is shifte d to 2 position while drivi ng in D4 (O/D)

3 , great driving force is applied to the clutch inside the transmis-

or D sion. Clutch oper ating pr ess ure (lin e pressu re) mus t be incre ased to deal with this driving force.

SAT004J

During Shift Change

The line pressure is temporarily red uced correspond ing to a change in engine torque whe n sh ifting gear s (that is, when the shift soleno id valve is switched for clutch operation) to reduce shifting shock.

SAT005J

At Low Fluid Temperature

● Fluid viscosity and frictional characteristics of the clutch facing change with fluid temperature. Clutch

engaging or band-contacting pressure is compensated for, according to fluid temperature, to stabilize shifting quality.

AT-30

Page 49

OVERALL SYSTEM

● The line pressure is reduced below 60°C (140°F) to prevent

shifting shock due to low viscosity of automatic transmission fluid when temperature is low.

● Line pressure is increased to a maximum irrespective of the

throttle opening w hen fluid temperature drops to −10°C (14°F). This pressure rise is adopted to pr event a d elay in clutch and brake operation due to extreme drop of fluid viscosity at low temperature.

SAT006J

SAT007J

SHIFT CONTROL

The shift is regulated entir ely by electronic co ntrol to accommodate vehicle speed and v arying engin e operations. This is accompl ished by electrical signals transmitte d by the revolution sensor and the EC M (throttle opening). This results in improved acceleration performance and fuel economy.

Control of Shift Solenoid Valves A and B

The shift solenoid v alve performs simple ON-OFF operation. When set to ON, the drain circuit closes and pilot pressur e is applied to the shift valve. The TCM activate s shift solenoid valves A and B accordin g to signals from the E CM ( thro ttle op ening) and revo lutio n sen sor to se lect the optimum ge ar positio n on the basis of the shift sche dule me morized in the TCM.

SAT008J

AT-31

Page 50

OVERALL SY STEM

Relation between shift solenoid valves A and B and gear positions

Shift solenoid valve

A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed) B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)

1 , 21 , 11 D2 , 22 , 1 2 D3 , 33 D4 (O/D) N-P

Control of Shift Valves A and B

Pilot pressure ge nerated by the ope ration of shift solenoi d valves A and B is app lied to the end face of shift valves A and B. The drawing above shows th e oper ation of s hift val ve B. W hen th e shift s olenoid valve is ON, pil ot pressur e applied to th e end face of the shift valve overcomes spring force, moving the valve upward.

Gear positi on

SAT009J

LOCK-UP CONTROL

The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to increase power tr ansmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent fr om the TCM. The signal is co nverted to an oil pressure signal which controls the lock-up piston.

Conditions for Lock-up Operation

When vehicl e is driven in 4th gear position, vehicl e speed and thr ottle opening are d etected. If the dete cted values fall within the lock-up zone memor ized in the TCM, lock-up is performed.

Selector lever D position 3 position Gear position D Vehicle speed sensor More than se t value ECM (throttle opening) Less than set opening A/T fluid tem perature sen sor More th an 40°C (104°F)

4 3

Torque Converter Clutch Solenoid Valve Control

The torque converter clutch so lenoid valve is co ntrol led by the TCM. The plunger closes the drain circuit during the OFF period, and opens the circuit during the ON period. If the percentage of OFF-time increases in one cycle, the pilot pressure drain time is reduced and pilot pressure remains high.

AT-32

SAT010J

Page 51

OVERALL SYSTEM

The torqu e converter c lutch piston is designed to sl ip to adjust th e ratio of ON-OFF, thereby reducing loc k-up shock. OFF-time INCREASING

↓

Amount of drain DECREASING

↓

Pilot pressure HIGH

↓

Lock-up RELEASING

Torque Converter Clutch Control Valve Operation

SAT011J

AAT155A

LOCK-UP RELEASED

The OFF-durati on of the torque converter clutc h solenoid valve is long, and pilot pressur e is high. The pilot pressure push es the en d face of the tor que converte r clutch contr ol valve in com bination w ith spring fo rce to move the valve to the left. As a result, converter pressure is applied to chamber A (torque converter clutch piston release s ide). Accordingly, the torque converter clutch piston remains unlocked.

LOCK-UP APPLIED

When the OFF-duration of the torque converter clutch solenoid valve is short, pilot pressure drains and becomes low. Accordingly, the control valve moves to the right by the pilot pr essure of the other circuit and converter pressure. As a resul t, converter pressure is applied to cham ber B, keeping the torque converter clutch piston applied. Also smooth lock-up is provided by transient application and release of the lock-up.

OVERRUN CLUTCH CONTROL (ENGINE BRAKE CONTROL)

Forward o ne-way clutch is used to reduce s hifting shocks in downshifti ng operations. This clutch trans mits engine torqu e to the wheels. How ever, drive force from the wheel s is not transmitted to th e engine becaus e the one-way clutch rotates idle. This means the engine brake is not effective. The overrun clutch operates when the engine brake is needed.

Overrun Clutch Operating Conditions

SAT014J

Selector lever position Gear position Throttle opening DD 22 111 , 12 At any positio n

1 , D2 , D3

1 , 22

Less than 3/16

AT-33

Page 52

OVERALL SY STEM

Overrun Clutch Solenoid Valve Control

The overrun clutch s olenoid valve is ope rated by an O N-OFF signal transmitted by the TCM to provide overrun clutch control (engine brake control). When this sol eno id valve is ON , the pilot pressu re d rain p ort c lose s. When it is OFF, the drain port opens. During the solenoid valve ON pilot pressure is applied to the end face of the overrun clutch control valve.

Overrun Clutch Control Valve Operation

When the solenoid v alve is ON , pilot press ure is appli ed to the over run clutch cont rol valve. This pushes up the overrun clutch control valve. The line pr essure is then shu t off so that the clutc h does not engage. When the solenoid v alve is OFF, pilo t pressure is not generated. At this point, the overrun clutch control valve moves downward by spring force. As a result, overrun clutch operation pressure is provided by the overrun clutch reducing valve. This causes the overrun clutch to engage. In the 1 position, the overrun clutch control valve remains pushed down so that the overrun clutch is engaged at all times.

SAT015J

SAT016J

Control Valve ECS004R2

FUNCTION OF CONTROL VALVES

Valve name Function

Pressure regulator valve, plug and sleeve plug

Pressure modifier valve and sleeve Used as a signal supplementary valve to the pressure regulator valve. Regulates pres-

Pilot valve Regulates line pressure to maint ain a constan t pilot pressure level which controls lock -up

Accumulator control valve Regulates accumulator back-pressure to pressure suited to driving conditions. Manual valve Directs line pressure to oil circuits corresponding to select positions.

Shift valve A Simultaneously switches three oil circuits using output pressure of shift solenoid valve A

Regulates oil discharged from the oil pump to provide optimum line pressure for all driving conditions.

sure-modifier pressure (signal pressure) which controls optimum line pressure for all driving conditions.

mechanism, overrun clutch, shift timing.

Hydraulic pressure drains when the shift lever is in Neutral.

to meet driving conditions (vehicle speed, throttle opening, etc.). Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th → 3rd → 2nd → 1st gears) in combination with shift valv e B.

AT-34

Page 53

OVERALL SYSTEM

Valve name Function

Shift val ve B Simultaneousl y sw i tches two oil cir cu its using output p ressure of shift so l en oi d valve B in

relation to driving conditions (vehicle speed, throttle opening, etc.). Provides automatic downshifting and up-shifting (1st → 2nd → 3rd → 4th gears/4th → 3rd → 2nd → 1st gears) in combination with shift valve A.

Overrun clutch control valve Switches hydraulic circuits to prevent engagement of the overrun clutch simultaneously

with application of the brake band in D engages during D

“1” reducing valve Reduces low & reverse brake pressure to dampen engine-brake shock when down-shift-

ing from the 1 position 1

Overrun clutch reducing valve Reduces oil pressure directed to the overrun clutch and prevents engine-brake shock.

In 1 and 2 positions, line pressure acts on the overrun clutch reducing valve to increase

the pressure-regulating point, with resultant engine brake capability. Torque converter relief valve Prevents an excessive rise in torque converter pressure. Torque converter clutch control valve, plug

and sleeve

1-2 accumulator valve and piston Dampens the shock encountered when 2nd gear band servo contracts, and provides

3-2 timing valve Switches the pace that oil pressure is released depending on vehicle speed; maximizes

Shuttle val v e Determ i ne s if t he overrun clutch solenoid valve sh oul d control the 3-2 tim ing valve or the

Cooler check valve At low speeds and with a small load when little heat is generated, saves the volume of

Activates or inactivates the lock-up fu n ction.

Also provides smooth lock-up through transient application and release of the lock-up

system.

smooth shifting.

the high clutch release timing, and allows for soft down shifting.

overrun clutch control valve and switches between the tw o.

cooler fl ow, and stores the oil pre ssu re f or lock up.

4 .)

2 to 11 .

4 . (Interlocking occurs if the overrun clutch

AT-35

Page 54

ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

ON BOARD DIAGNOS TIC SYSTEM DESCRIPTI ON

PFP:00000

Introduction ECS004R3

The A/T system has two self-diagnostic systems. The first is the emission-related on board diagn ostic system (OBD-II) performed by the TCM (transmission control module) in com bination 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 i s the TCM o riginal s elf-diagnosi s indicated by the A /T check (po sition) indi cator lam p. The m alfunction is stored in the TCM mem ory. The detected items are overlapped with OB D-II self-diagnosti c items. For details, refer to AT-36, "

OBD-II Function for A/T System" .

OBD-II Function for A/T System ECS004R4

The ECM provi des emissio n-related on bo ard diagno stic (OBD -II) functions for the A/T s ystem. One f unction is to receive a signal from the TCM used w ith OBD-related parts of the A /T system. The signal is sent to the ECM when a malfunction o ccurs in the corr esponding OBD- related part. The ot her function is to indicate a diagnostic result by means of the MIL (malfunction indicator lamp) o n the instrument panel. Sensors, switches and solenoid valves are use d as sensing el ements. 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-I I ECS004R5

ONE TRIP DETECTION LOGIC

If a malfunction is sensed during the first test drive, the MIL will illuminate and the malfunction will be stored i n the ECM memory as a D TC. The TCM is not provided with such a memory function.

TWO TRIP DETECTION LOGIC

When a ma lfunction is sens ed during the f irst test drive, it is stored in the EC M memory as a 1st trip DT C (diagnostic trouble code) or 1st trip freeze frame data. At this point, the MI L will not illuminate. — First Trip If the same mal function as th at experienc ed during the first test driv e is sensed du ring the s econd test driv e, the MIL wil l illuminate. — Second Trip A/T-related parts for which the MIL illuminates during the first or second test drive are listed below.

Items

Shift solenoid valve A — DTC: P0750 X Shift solenoid valve B — DTC: P0755 X Accelerator pedal position (APP) sensor — DTC: P1705 X Except above X

One trip detection Two trip detection

MIL

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) ECS004R6

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,

P0720, P0725, etc. These DTCs are prescribed by SAE J2012. (CONSULT-II also displays the malfunc tioning component or system.)

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

● Output o f the diagn ostic tr oub le cod e indica tes tha t th e ind icated c ircui t has a malf unct ion. Ho w-

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-I I can ident ify them as sh own below. Therefo re, using CO NSULT-II ( if available) is recommended.

AT-36

Page 55

ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

A sample of C ONS U LT-I I disp lay fo r DTC and 1st tr ip DT C is show n in the follow ing page. DTC or 1st trip D TC of a malfunction is displayed in “SELF DIAGNOSIS” mode for “ENGINE” with CONSULTII. Time data indica tes how many times th e vehicle w as driv en after the last detection of a DTC.

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

SAT014K

SAT015K

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

SAT016K

Freeze Frame Data and 1st Trip Freeze Frame Data

The ECM has a memory function, which stores the driving condition such as fuel system status, calculated load value, en gine coolant temperature, sh ort term fuel trim, long term fuel tr im, engine sp eed and vehicle speed at the moment the ECM detects a malfunction. Data which are store d in the ECM memory, along with the 1st trip DTC, are called 1st trip fr eeze frame da ta, and the data, stored together wit h the DTC data, are called freeze fr ame data and disp layed on CON SULT-II or GST. The 1st trip freeze fram e data can only be disp layed on the CO NSU LT- II screen , not on the GST. For detail s, ref er to EC-59, "

EC-678, "

FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA" (with VQ35DE).

Only one set of fre eze fr ame d ata (e ither 1s t trip f reeze fram e data of fr eeze fr am e data) can be store d in the ECM. 1st trip fr eeze fram e da ta is stor ed in the ECM mem ory al on g with t he 1st tr ip DT C . There is no priori ty for 1st trip freeze frame data and it is updated each tim e a differen t 1st trip D TC is de tected. However, once freeze frame data (2nd trip detection /MIL on) is sto red in the ECM me mory, 1st trip freeze frame d ata is no longer store d. Re memb er, only one set of freeze fr am e data can be st ored in the EC M. The E C M has th e following priorities to update the data.

Priority Items

1 Freeze fram e data Misfire — DTC: P0300 - P0306

2 Exce pt the above items (Includes A/T rel ate d it em s) 3 1st trip freeze frame data

FREEZE FRAME DATA AND 1ST TRIP FREEZE FRAME DATA" (with QR25DE ) or

Fuel Injection System Function — D TC: P0171, P0172, P0174, P0175

AT-37

Page 56

ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

Both 1st trip freeze frame data and freeze frame data (along with the DTCs) are cleared when the ECM memory is erased .

HOW TO ERASE DTC

The diagnostic trouble code can be erased by CON SULT-II, GST or ECM DIAGNOSTIC T EST MODE as described following.

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

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

selector on the ECM.

The following emi ssion-related diagnostic infor mation is cleared from the ECM me mory when erasing DTC related to OBD-II . For details, refer to EC-55, "

EC-674, "

● Diagnostic trouble codes (DTC)

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

● Freeze frame data

● 1st trip freeze frame data

● System readiness test (SRT) codes

● Test values

Emission-related Di agno stic Infor mation " (with VQ35DE).

HOW TO E RASE DTC (WITH CONSULT-II)

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

1. If the ignition s witch stays ON after repair w ork, be sure to tur n ignition switch OFF on ce. Wait at least 10 seconds and then turn it ON (engine stopped) again.

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

3. Touch “SELF-DIAG R ESULTS”.

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

5. Touch “ENGINE”.

6. Touch “SELF DIAGNOSIS”.

Emission-related D iagnostic Information " (with QR25DE), or

AT-38

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

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

SAT286K

HOW TO ERASE DTC (WI TH GS T)

1. If the ignition switch stays ON afte r repair wor k, be su re to turn igni tion s witch O FF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.

2. Perform “OBD-II SELF-DIAGNOSTIC PROCEDURE (No Tools)”. Refer to AT- 5 0 , "

OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" . (The eng ine warm -up step can be s kipped whe n perfo rming the

diagnosis only to erase the DTC.)

3. Select Mode 4 with Generic Scan Tool (GST). For details, refer to EC-68, "

How to Erase D TC ( With

GST)" (with QR25DE ), or EC- 688, "How to E rase DTC ( With GST)" (with VQ35DE).

HOW TO ERASE DTC (NO TO OLS)

1. If the ignition switch stays ON afte r repair wor k, be su re to turn igni tion s witch O FF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.

2. Perform “TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)”. Refer to AT-51, "

NOSTIC PROCEDURE (NO TOOLS)" . (The eng ine warm -up step can be s kipped whe n perfo rming the

diagnosis only to erase the DTC.)

TCM SELF-DIAG-

AT-39

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

Malfunction Indi cat or Lam p ( MIL)

ECS004R7

1. The malfunction indicator lamp will light up when the ignition switch is turned ON without the engine running. This is for checking the lamp.

● If the malfunction indi cator lamp doe s not light up, re fer to DI-

22, "WARN I N G LA M P S" .

[Or see EC-69, " QR25DE), or EC-689, "

Malfunction Indicator Lamp (MIL)" (with

Malfunction Indicator Lamp (MIL)"

(with VQ35 DE).]

2. When the engine is started, the malfunction indicator lamp should go off. If the lamp remains on, the on board diagnostic system has

SAT964I

detected an e mission-related (O BD-II) malfunction . For details, refer to EC-55, "

Emission-related D iagno stic Informati on" (with Q R25DE ), or EC- 674, "Emission-related

Diagnostic Information" (with VQ35DE).

CONSULT-II ECS004R8

After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” (AT-40, "SELF-DIAGNOSTIC

PROCEDURE (WITH C ONSULT-II)" ), place check mar ks for results on the “Diagnost ic Worksheet”, AT-56, "DIAGNOSTIC WORKSHEET" . Reference pages are provide following the items .

NOTICE:

1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each solenoid). Check for time difference between actual shift timing and the CONSULT-II display. If the difference is noticeable, mecha nica l parts (exce pt solenoi ds, s en sors, etc.) may be malfun ct ioning. C hec k mechan ical parts using applicable diagnostic procedures.

2. Shift sch edule ( which i mplies gear pos ition ) display ed on C ONSU LT-II and that indicated i n Servic e Man ual may differ slightly. This occurs because of the following reason s:

– Actual shift schedule has more or less tolerance or allowance, – Shift schedule indicated in Service Ma nual refers to the point where shifts start, and – Gear position displayed on CONSULT-II indicates the point where shifts are completed.

3. Shift sole noid valve “A” or “B” is displayed on CONSULT- II at the start of shifting. Gear position is displayed upon completion of shifting (which is computed by TCM).

4. Additiona l CONSU LT-II info rmation can be found in the Op eration Man ual suppli ed with the CON SULT- II unit.

SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)

1. Turn on CON SULT-II and touc h “ENGINE” for OBD-II detec ted items or touch “A/T” for TCM self-diagnosis. If A/T is not displayed, check TCM power supply and ground circuit. Refer to AT-10 0, "

TROUBLE DIAGNOSIS FOR POWER SUPPLY" . If result is NG, refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .

AT-40

SAT014K

Page 59

ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

2. Touch “SELF DIAGNOSIS”. Display shows malfunction experienced since the last erasing operation. CONSULT-II performs “Real Time Diagnosis”. Also, any malfunction detected while in this mode will be displayed at real time.

SELF-DIAGNOSTIC RESULT TEST MODE

Detected items (Screen terms for C ONSULT-II, “SELF DIAGNO SIS” test mode)

“A/T” “ENGINE”

Park/neutral position (PNP) switch circuit

— PNP SW/CIRC

Revolution sensor

VHCL SP EED SEN·A/T Vehicle speed sensor (Meter )

VHCL SP EED SEN·MTR

A/T 1st gear fu nc t ion

—

A/T 2nd gear function

—

A/T 3rd gear function

—

A/T 4th gear fu nc t ion

—

A/T TCC S/V function (lock-up)

—

Shift solenoid valve A SHIFT SOLENO ID/V A SFT SOL A/CIRC Shift solenoid valve B SHIFT SOLENO ID/V B SFT SOL B/CIRC Overrun clutch solenoid valve

OVERR UN CLUTCH S/VO/R CLUCH SOL/

T/C clutch sol e no i d valv e

T/C CLUTCH SOL/V

VEH SPD SEN / CIR AT

—

A/T 1ST GR FNCTN

A/T 2ND GR FNCTN

A/T 3RD GR FNCTN

A/T 4TH GR FNCTN

A/T TCC S/V FNCTN

CIRC

TCC SOLE NO I D/ CIRC

Malfunction is detected when...

● TCM does not receive the correct

voltage signal (based on the gear positi on) fro m the sw itch.

● TCM does not receive the proper

voltage signal from the sensor.

● TCM does not receive the proper

voltage signal from the sensor.

● A/T cannot be shifted to the 1st

gear position even if electrical circuit is good.

● A/T cannot be shifted to the 2nd

gear position even if electrical circuit is good.

● A/T cannot be shifted to the 3rd

gear position even if electrical circuit is good.

● A/T cannot be shifted to the 4th

gear position even if electrical circuit is good.

● A/T cann ot perf orm lock- up ev en if

electrical circuit is good.

● TCM detects an improper voltage

drop when it tries to operate the solenoid valve.

● TCM detects an improper voltage

drop when it tries to operate the solenoid valve.

● TCM detects an improper voltage

drop when it tries to operate the solenoid valve.

● TCM detects an improper voltage

drop when it tries to operate the solenoid valve.

TCM self-diagnosis OBD-II (DTC)

Availa ble by A/T c heck

(position) indicator

lamp or “A/T” on

CONSULT-II

— P0705

X P0720

X—

— P0731*1

— P0732*1

— P0733*1

— P0734*1

— P0744*1

X P0750

X P0755

X P1760

X P0740

Available by m alfunc tion indicator lamp*2,

“ENGINE” on

CONSULT-II or GST

SAT987J

AT-41

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

Detected items (Screen terms for CONSULT-II, “SELF DIAGNOSIS” test mode)

“A/T” “ENGINE”

Line pressure solenoid valve

LINE PR ESSURE S/V

L/PRESS SOL/ CIRC

Throttle position sensor [accelerator pedal position (APP) sensor]

THROTTLE POSI SEN TP/SEN/CI RC A/T

Engine speed signal ENGINE SPEED SIG A/T fluid temperature sensor BAT T/FLUID TEMP

SEN

ATF TEMP SEN/

CIRC Engine contr ol A/T COMM L INE — Turbine revolution sensor

TURBINE REV

Malfunction is de tected when...

● TCM detects an improper voltage

drop when it tries to operate the solenoid valve.

● TCM receives an excessively low

or high voltage from this sensor

● TCM does not receive the proper

voltage signal from the ECM.

● TCM receives an excessively low

or high voltage from the sensor.

● The ECM-A/T communication line

is open or shorted.

● TCM does not receive proper volt-

age signal f rom sens or

TCM self-diagnosis OBD-II (DTC)

Avail able b y A/T che ck

(position) indicator

lamp or “A/T” on

CONSULT-II

Availa bl e by ma lf un c-

tion indicator la mp*2,

“ENGINE” on

CONSULT-II or GST

X P0745

X P1705

X P0725

X P0710

X U1000

X—

TCM (RAM) CONTROL UNIT

(RAM) TCM (ROM) CONTROL UNIT

(ROM) TCM (EEP ROM) CONT UNIT(EEP

ROM) Initial start

INITIAL START —

—

● TCM memory ( RAM) is malfunc-

tioning

● TCM memory ( ROM) is malfun c-

tioning

● TCM memory ( EEP ROM) is mal-

functioning.

● This is no t a m al f un cti o n m essage

(Whenever shutting off a power supply to the TCM, this m essage appears on the screen.)

——

X—

No failure (NO SELF DIAGNOSTIC FAILURE INDICATED FURTHER TESTING MAY BE

● No fai lure has been detected. X X

REQUIRED**)

X: Applicable

−: Not applicable *1: These malfunctions cannot be displayed by MIL if another malfunction is assigned to MIL.

*2: Refer to EC-69, "Malfunction Indicator Lamp (MIL)" (with QR25DE), or EC-689, "Malfunction Indicator Lamp (MIL)" (with VQ35D E) .

AT-42

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

DATA MONITOR MODE (A/T)

Item Display

Ve hicl e spee d sen sor 1 (A/T) (Revolution sensor)

Vehicle speed sensor 2 (Meter)

Throttle position sensor [accelerator pedal position (APP) sensor]

A/T fluid temperature sensor

Battery voltage BATTERY

Engine speed ENGINE

Turbine revolution sensor

Overdrive control switch

PN position (PNP) switch

R position switch R POSITION

VHCL/S SE·A/T [km/h] or [mph]

VHCL/S SE·MTR [km/h] or [mph]

THRTL POS SEN [V]

FLUID TEMP SE [V]

VOLT [V]

SPEED [rpm]

TURBINE REV

OVERDRIVE SW [ON/OFF]

PN POSI SW [ON/OFF]

SW [ON/OFF]

Monitor item

TCM Input

signals

CAN Comm. signals

Main

signals

X——

X—X

X——

Selec-

tion

from

Description Remarks

● Vehi c l e spe ed com -

● When racing engine

puted from signal of revolution sensor is displayed.

● Vehi c l e spe ed com -

● Vehi c l e spe ed dis-

puted from signal of vehicle sp eed sensor is displayed.

● Throttle position sen-

sor signal voltage is displayed

● A/T flui d temper ature

sensor sig nal voltage is displayed.

● Signal vo ltage low ers

as fluid temperature rises.

● Source volt age of

TCM is displayed.

● Engine speed, com-

● Engine sp eed dis-

puted from engine speed signal, is displayed.

● Checks changing

speed th en performs oil pressure control and torque down control

● ON/OFF state com-

puted from signal of 3 position switch is displayed.

● ON/OFF state com-

puted from signal of PN position SW is displayed.

● ON/OFF state com-

puted from signal of R position SW is displayed.

in N or P wi th ve hic le stationary, CONSULT-II da ta may not indicate 0 km/h (0 mph).

play m ay not be accurate under approx. 10 km /h ( 6 mph). It may not indicate 0 km/h (0 mph) when vehic le is stationary.

play m ay not be accurate under approx. 800 rp m. It may not indicate 0 rpm even when engine is not running.

AT-43

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

Item Display

D position switch D POSITION

SW [ON/OFF]

2 positio n swit c h 2 POSITION

SW [ON/OFF]

1 positio n swit c h 1 POSITION

SW [ON/OFF]

ASCD cruise signal ASCD·CRUIS

E [ON/OFF]

ASCD OD cut signal ASCD·OD

CUT [ON/OFF]

Kickdown switch KICKDOWN

SW [ON/OFF]

Stop lamp switch BRAKE SW

[ON/OFF]

Selector lever position SLCT LVR

POSI

V ehicle speed VEHICL E

SPEED [km/h] or [mph]

Throttl e pos i tion [Accelerator pedal position (APP) sensor]

Gear position GEAR

THROTTLE POSI [/8] — — X —

Monitor it em

TCM

Input

signals

CAN

Comm.

signals

Main

signals

Selec-

tion

from

X——

X———

——X

Description Remarks

● ON/OFF state com-

puted from signal of D position SW is displayed.

● ON/OFF status,

comput ed from si gnal of 2 position SW, is displayed.

● ON/OFF status,

comput ed from si gnal of 1 position SW, is displayed.

● Sta tus of ASC D

cruise signal is displayed. ON ... Cruising state OFF ... Normal running state

● Sta tus of ASC D OD

release signal is displayed. ON ... OD released OFF ... OD not released

● ON/OFF status,

● This is displayed

comput ed from si gnal of ki ckdow n SW, is displayed.

● ON/O FF status is

displayed. ON ... B rake pedal is depressed. OFF ... Brake pedal is released.

● Selector lever posi-

● A specific value

tion dat a, used f or computation by TCM, is displayed.

● Vehicle speed data,

used for computation by TCM, is di splayed.

● Throttle position

● A specific value

data, used for computatio n by TC M , is displayed.

● Gear position data

used for computation by TCM, is di splayed.

even when no kickdown switch is equipped.

used for control is displayed if fail-safe is activated due to error.

AT-44

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

Monitor item

Item Display

TCM Input

signals

CAN Comm. signals

Main

signals

Line pressure duty LINE PRES

DTY [%] — — X —

T orque con verter clutch solenoid valve duty

TCC S/V DUTY [%]

——X—

Shift solenoid valve A S HIFT S/V A

[ON/OFF]

——X—

Shift solenoid valve B S HIFT S/V B

[ON/OFF]

——X—

Overrun clu tch solenoid valve

Self-diagnosis display lamp [A/T check (position) indicator lamp]

Torque converter slip ratio

Torque converter slip speed

OVERRUN/C S/V [ON/OFF]

SELF-D DP LMP [ON/OFF]

TC SLIP RATIO [0.000]

TC SLIP SPEED [rpm]

——X

———

Voltage [V] — — —

Frequency [Hz] — — —

Selec-

tion

from

Description Remarks

● Control value of line

pressure solenoid valve, comp uted by TCM fro m eac h inpu t signal, is displayed.

● Control value of

torque converter clutch solenoid valve, comp uted by TCM fro m eac h inpu t signal, is displayed.

● Control value of shift

● Control value of

solenoid valve A, computed by TCM from each input signal, is disp layed.

● Control value of shift

solenoid valve B, computed by TCM from each input signal, is disp layed.

● Control value of

overrun clut ch solenoid valve computed by TCM from each input signal is displayed.

● Control status of A/T

check (position) indicator lamp is displayed.

● Ratio of engine revo-

lution to input shaft revolution of torque converter.

● Difference in revo lu-

● Display doe s not

tion between input shaft revolution and torque converter input shaft revolution.

● Value measured by

voltage probe is displayed.

● Value measured by

pulse probe is displayed. If measurement is impossible, "#" sign is displaye d. "#" sign is also dis played at the final data value until th e measur eme nt result is obtained.

solenoid is displayed even if solenoid circuit is disconnected. The OFF signal is displayed if solenoid circuit is shorted .

indicate engine is stopped even if 0 rpm — this is not a malfunction.

AT-45

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

Monitor it em

Item Display

DUTY-HI — — — DUTY-LOW — — — PLS WIDTH-HI — — —

PLS WIDTH-LOW — — —

CAN communication

CAN circuit 1

CAN circuit 2

CAN circuit 3

CAN circuit 4

CAN circuit 5

X: Applicable —: Not applicable

: Option

CAN COMM [OK/UNKWN]

CAN CIRC 1 [OK/UNKWN]

CAN CIRC 2 [OK/UNKWN]

CAN CIRC 3 [OK/UNKWN]

CAN CIRC 4 [OK/UNKWN]

CAN CIRC 5 [OK/UNKWN]

TCM

Input

signals

—X—

CAN

Comm.

signals

Main

signals

Selec-

tion

from

Description Remarks

● Duty cycle value for

measurement probe is displayed.

● Measured pul se

width of measurement probe is displayed.

DTC WORK SUPPORT MODE WITH CONSULT-II CONSULT-II Setting Procedur e

1. Turn ignition switch OFF.

2. Connec t CO NSU LT-II to Data link c onn ector, which is located in left side dash panel.

3. Turn ignition switch ON.

4. Touch “START”.

LCIA0042E

AT-46

SAT586J

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

5. Touch “A/T ”.

6. Touch “DTC WORK SUPPORT”.

SAT014K

SAT971J

7. Touch select item menu (1ST, 2ND, etc.).

8. Touch “START”.

SAT018K

SAT589J

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

9. Perfor m driving tes t according to “DTC C ONFIRMATION PROCEDURE” in “TROUBLE DIAGNOSIS FOR DTC”.

● When testing conditions are satisfied, CONSULT-II screen

changes fro m “OUT O F CONDITION” to “TESTING”.

SAT019K

10. Stop vehicle. If “NG” appears on the screen, malfunction may exist. Go to “DIAGNOSTIC PROCEDURE”.

SAT591J

SAT592J

AT-48

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

11. Perform t est dr ive to chec k ge ar shift feel ing in ac cord ance w ith instructions displayed.

12. Touch “YES” or “NO”.

SAT594J

SAT595J

13. CONSULT-II procedure ended.

If “NG” appears on the screen, a malfunction may exist. Go to “DIAGNOSTIC PROCEDURE”.

SAT596J

SAT593J

AT-49

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

DTC WORK SUP PO RT M ODE

DTC work support item Descript ion Check item

1ST GR FNCTN P0731

2ND GR FN CTN P0732

3RD GR FN CTN P0733

4TH GR FN CTN P0734

TCC S/V FNCTN P0744

Following items for “A/T 1st gear function (P0731)” can be confirmed.

● Self-dia gn osis status (whether the diagnosis is being c on duc t ed

or not)

● Self-diagnosis result (OK or NG)

Following items for “A/T 2nd gear function (P0732)” can be confirmed.

● Self-dia gn osis status (whether the diagnosis is being c on duc t ed

or not)

● Self-diagnosis result (OK or NG)

Following items for “A/T 3rd gear function (P0733)” can be confirmed.

● Self-dia gn osis status (whether the diagnosis is being c on duc t ed

or not)

● Self-diagnosis result (OK or NG)

Following items for “A/T 4th gear function (P0734)” can be confirmed.

● Self-dia gn osis status (whether the diagnosis is being c on duc t ed

or not)

● Self-diagnosis result (OK or NG)

Following items for “A/T TCC S/V function (lock-up) (P0744)” can be confirmed.

● Self-dia gn osis status (whether the diagnosis is being c on duc t ed

or not)

● Self-diagnosis result (OK or NG)

● Shift solenoid valve A

● Shift solenoid valve B

● Each clutch

● Hydraulic control circuit

● Shift solenoid valve B

● Each clutch

● Hydraulic control circuit

● Shift solenoid valve A

● Each clutch

● Hydraulic control circuit

● Shift solenoid valve A

● Shift solenoid valve B

● Overrun clutch solenoid valve

● Line pressu re sol e noid valve

● Each clutch

● Hydraulic control circuit

● Torque converter clut ch sol e -

noid valve

● Each clutch

● Hydraulic control circuit

Diagnostic Procedure Without CONSULT-II ECS004R9

OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)

Refer to EC-119, "Generic Scan Tool (GS T) F unction" (with QR25DE), or EC-743, "Gener ic Scan Tool (GST)

Function" (with VQ35DE).

OBD-II SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

Refer to EC-69, "Malfunction In dica tor L amp ( MIL) " (w ith QR25 DE), or EC-689, "Malfuncti on Indicator La mp

(MIL)" (with VQ35DE).

AT-50

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)

1. CHECK A/T CHECK ( POSITION) INDICATOR LAMP

1. Move selector lever to P position. Start engine and warm it up to normal e ngine o per ating tempe rature.

2. Turn ignition switch to OFF position.

3. Wait 5 seconds.

4. Turn ignition switch to ON position. (Do not start engine.)

5. Does A/T c heck (position) indicato r lamp come on for ab out 2 seconds?

Yes or No

Yes >> GO TO 2. No >> Stop procedure. Perform AT-213, "

1. A/T Check (Position) Indicator Lamp Do es Not Come On" before pro-

ceeding.

2. JUDGEMENT PROCEDURE STEP 1

LCIA0043E

LCIA0044E

1. Turn ignition switch to OFF position.

2. Turn ignition switch to ON position. (Do not start engine.)

3. Depress the b rake peda l, then move gear selector le ver from P to D position.

4. Wait 3 seconds.

5. Move selector lever to 2 position.

6. Release brake pedal.

>> GO TO 3.

LCIA0045E

AT-51

LCIA0046E

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

3. JUDGEMENT PROCEDURE STEP 2

1. Move selector lever to 1 position.

2. Depress brake pedal.

3. Depress accelerator pedal fully and release it.

4. The A/T check (position) indicator lamp will begin to flash.

>> GO TO 4.

4. CHECK SE LF- DIA GNO ST IC CO DE

Check A/T check (position) indicator lamp. Refer to AT-52, "

JUDGEMENT OF SELF-DIAGNOSIS CODE" .

LCIA0047E

>> DIAGNOSIS END

JUDGEMENT OF SELF-DIAGNOSIS CODE

A/T check (position) indicator lamp:

All judgement flickers are the same.

LCIA0049E LCIA0050E

All circuits that can be confirmed by self-diagnosis are OK.

2nd judgement flic ker is l onger than ot hers.

LCIA0044E

1st judgement flicker is longer than others.

Revolution sensor circuit is short-circuited or disconnected.

Go to AT-115, "DTC P0720 VEHICLE SPEED SENSOR·A/T

(REVOLUTION SENSOR)" .

3rd judgement flicker is longer than others.

LCIA0051E LCIA0052E

Vehicle speed sensor circuit is short-circuited or disconnected.

Go to AT-196, "DTC VEHI CLE SPEED SENSOR MTR" .

Throttle position sensor circuit is short-circuited or disconnected.

Go to AT-175, "DTC P1705 THROTTLE POSITION SENSOR

[ACCELERATOR PEDAL POSITION (APP) SENSOR]".

AT-52

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ON BOAR D DIAGNOSTIC SYST EM DESCRIPTION

A/T check (po siti o n) indicator lamp:

4th judgement flicker is longer than others.

LCIA0053E LCIA0054E

Shift solenoid valve A circuit is short-circuited or disconnected.

Go to AT-165, "DTC P0750 SHIFT SOLENO ID VALVE A" .

6th judgement flicker is longer than others.

LCIA0055E LCIA0056E

Overrun clutch solenoid valve circuit is short-circuited or disconnected.

Go to AT-180, "DTC P1760 OVE RRUN CLUTCH SOL EN OI D

VALVE" .

8th judgement flicker is longer than others.

5th judgement flicker is longer than others.

Shift solenoid valve B circuit is short-circuited or disconnected.

Go to AT-170, "DTC P0755 SHIFT SOLENOID VALVE B" .

7th judgement flicker is longer than others.

Torque converter clutch solenoid valve circuit is short-circuited or disconnected.

Go to AT-146, "DTC P0740 TORQUE CONVERTER CLUTCH

SOLENOID VALVE" .

9th judgement flicker is longer than others.

LCIA0057E LCIA0058E

A/T fluid temperature sensor is disconnected or TCM power source circuit is damaged.

Go to AT-109, "DTC P0710 A/T FLUID TEMPERATURE SEN-

SOR CIRCUIT" .

10th judgement flic k er is longer than others.

LCIA0059E LCIA0060E

Turbine revolution sensor circuit is short-circuited or disconnected.

Go to AT-200, "DTC TURB INE REVOLUTIO N SENSOR " .

Engine speed signal circuit is short-circuited or disconnected.

Go to AT-120, "DTC P0725 ENGINE SPEED SIGNAL" .

11th judgement flicker is longer than others.

Line pressure solenoid valve circuit is short-circuited or disconnected.

Go to AT-159, "DTC P0745 LINE PRES SU RE SO LENOID

VALVE" .

AT-53

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ON BOAR D DI AGNOSTIC SYSTE M DE SCRIPTION

A/T check (position) indicator lamp:

12th judgem ent flicker is longer than other s.

LCIA0061E

The ECM-A/T communication line is open or shorted.

Go to AT-185, "DTC U1000 CAN CO MMUNICATION LINE" .

Lamp turns off.

LCIA0062E LCIA0063E

Park/ne ut r al p osition (PNP) switch, and 3 position s witch circuit is disconn ected or TCM is damaged.

Go to AT-242, "21. TCM Self-diagnosis Does Not Activate

(PNP & 3 Position Switches Circuit Checks), and Throttle Positi on Sensor [Accelerator Peda l Position (APP) Sens or] Circuit C heck" .

t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second

Flickers as shown belo w.

Battery pow er is l ow. Battery has been disconnected for a long time. Battery i s conn ected conversely. (When reconnecting TCM connectors. — This is not a problem.)

AT-54

Page 73

TROUBLE DIAGNOSIS - INTRODUCTION

TROUBLE DIAGNOSIS - INTRODUCTION PFP:00000

Introduction ECS004RA

The TCM receives a signal from the vehicle speed sensor, ECM (throttle openi ng) or park/neu tral po sition (PN P) switch a nd pr ovid es shift control or lock-up control via A/T solenoid valves. The TCM also communicates with the ECM by means of a signal sent from sensing elem ents used with the OBD-re lated parts of the A/T system for mal function-diagnostic purpos es. The TCM is capable of diagnosing mal funct ioning parts while the EC M ca n store malfunctions in its memory. Input and output signals must always be correct and stable in the operation of the A/T system. The A/ T system must be in good ope rating condition a nd be fre e of valv e sei zure, solen oi d valve malfunc tion, etc.

It is much m ore difficult to dia gnose a problem that occurs inte rmittently rather than continuously. Most intermittent problems are caused by poor electric connec tions or improp er wiri ng. In this ca se, careful checki ng of suspec ted circ uits may he lp preve nt the r eplacement of good parts. A visual check on ly, may not find the cause of the problems. A road test with C ONSULT- II (or GST ) or a circu it tester co nnected sho uld be performed. Follow the “Work Flow”. Refer to AT- 59, "

Work Flow" .

SAT631IA

Before und ertaking actual chec ks, take a few minutes to talk with a customer who approaches with a driveability complaint. The customer can sup ply good information a bout su ch problems, e specially intermittent ones. Find out what sym ptoms are present and u nder what conditions they occur. A “DIAGNOSTIC WORKSHEET” like the example on page AT-57

should be used. Start your diagnosis by looking for “conventional” problems first. This will help troubleshoot driv eability problems on an elect ronically controlled engine vehicle.

Also check related Service bulletins for information.

SAT632I

SEF234G

AT-55

Page 74

TROUBL E DIAGNOSI S - INTRODU CTION

DIAGNOSTIC WORKSHEET Information from Customer

KEY POINTS

WHAT ........ Vehicle & A/T model

WHEN ........ Date, Frequencies

WHERE ..... Road conditions

HOW .......... Operating conditions, Symptoms

Custom er nam e MR/MS Model & Ye ar VIN Trans. model Engine Mileage Incident Date Manuf. Date In Service Date Frequency ❏ Continuous ❏ Intermittent ( times a day) Symptoms ❏ Vehicle does not move. (❏ Any position ❏ Particular positi on)

❏ No up-shift (❏ 1st → 2nd ❏ 2nd → 3rd ❏ 3rd → 4th) ❏ No down-shift (❏ 4th → 3rd ❏ 3rd → 2nd ❏ 2nd → 1st) ❏ Lockup malfunction ❏ Shift point too high or too low. ❏ Shift shock or slip (❏ N → D ❏ Lockup ❏ Any drive position) ❏ Noise or vibration ❏ No kickdown ❏ No patt ern select ❏ Others

()

A/T check (position) indicator lamp Blinks for about 8 seconds.

❏ Continuously lit ❏ Not lit

Malfunction indicator lamp (MIL) ❏ Continuously lit ❏ Not lit

AT-56

Page 75

TROUBLE DIAGNOSIS - INTRODUCTION

Diagnostic Worksheet

1. ❏ Read the Fail-safe and listen to customer complaints. AT-9

2. ❏ CHECK A/T FLUID AT-61

❏ Leakage (Fol low specified procedure) ❏ Fluid condition ❏ Fluid level

3. ❏ Perform STALL TEST and PRESSURE TEST. AT-61 ❏ Stall test — Mark possible damaged components/others.

❏ Torque converter one-way clutch ❏ Reverse clutch ❏ Forward clutch ❏ Overrun clutch ❏ Forward one-way clutch

❏ Pressure te st — Sus pected parts:

4. ❏ Perform all ROAD TEST and mark required procedures. AT-66

4-1.Check before engine is started. AT-68

❏ SELF-DIAGNOSTIC PROCEDURE - Mark detected items.

❏ Park/neutral position (PNP) switch, AT-103 ❏ A/T fluid temperature sensor, AT-109 ❏ Vehicle speed sensor·A/T (Revolution sensor), AT-115 ❏ Engine speed signal, AT-120 ❏ Turbine revolution sensor, AT-200 ❏ Torque converter clutch solenoid valve, AT-146 ❏ Line pressure solenoi d valve, AT-159 ❏ Shift solenoid valve A, AT-165 ❏ Shift solenoid valve B, AT-170 ❏ Throttle position sensor [accelerator pedal position (APP) sensor], AT-175 ❏ Overrun clutch solenoid valve, AT-180 ❏ Park/neutral position (PNP) & 3 position switches circuit checks, and throttle position sensor

[accelerator pedal position (APP) sensor circuit check AT-242

❏ A/T fluid temperature sensor, AT-109 ❏ Vehicle speed sensor·MTR, AT-196 ❏ CAN communication line, AT-185 ❏ Control unit (RAM), Co n trol unit (ROM), AT-205 ❏ Control unit (EEP ROM), AT-207 ❏ Battery ❏ Others

. . .

❏ Low & reverse brake ❏ Low one-way clutch ❏ Engine ❏ Line pressure is low ❏ Clutches and brakes except high clutch and

brake band are OK

AT-65

AT-57

Page 76

TROUBL E DIAGNOSI S - INTRODU CTION

4-2.Check at idle AT-68

❏ 1. A/T Check (Position) Indicator Lamp Does Not Come On, AT-213 . ❏ 2. Engine Cannot Be Started In P and N Position, AT-214 ❏ 3. In P Position, Vehicle Moves Forw ard or Backward When Pushed, AT-215 ❏ 4. In N Position, Vehicle Moves, AT-215 ❏ 5. Large Shock. N → R Position , AT-217

❏ 6. Vehicle Does Not Creep Backward In R Position, AT-219 ❏ 7. Vehicle Does Not Creep Forward In D, 2 or 1 Position, AT-222

4-3.Cruise test AT-71

Part-1

❏ 8. Vehicle Cannot Be Started From D ❏ 9. A/T Does Not Shift: D ❏ 10. A/T Does Not Shift: D ❏ 11. A/T Does Not Shift: D

1 → D2 or Does Not Kickd own: D4 → D2 , AT-227 .

2 → D3 , AT-229 .

3 → D4 , AT-231 .

❏ 12. A/T Does Not Perfo rm Lock-up, AT-234

1 , AT-224 .

❏ 13. A/T Does Not Hold Lock-up Condition, AT-235 ❏ 14. Lock-up Is Not Releas e d, AT-236

❏ 15. Engine Speed Does Not R eturn To Id le (Light Braking D Part-2 AT-78

❏ 16. Vehicle Does Not Start From D1 , AT-239 . ❏ 9. A/T Does Not Shift: D ❏ 10. A/T Does Not Shift: D ❏ 11. A/T Does Not Shift: D

1 → D2 or Does Not Kickd own: D4 → D2 , AT-227 .

2 → D3 , AT-229 .

3 → D4 , AT-231 .

Part-3 AT-80

❏ 17. A/T Does Not Shift: D4 → D3 When Gear Selector Lever D → 3, AT-239 . ❏ 15. Engine Speed Does Not R eturn To Id le (Engine Brake In D ❏ 18. A/T Does Not Shift: D

3 → 22 , When Selector Lever D → 2 Position, AT-240 .

❏ 15. Engine Speed Does Not R eturn To Id le (Engine Brake In 2 ❏ 19. A/T Does Not Shift: 2

2 → 11 , When Selector Lever 2 → 1 Positio n, AT-240 .

❏ 20. Vehicle Does Not Decelerate By Engine Brake, AT-241 ❏ SELF-DIAGNOSTIC PR OCEDURE — Mark detected items.

❏ Park/neutral position (PNP) switch, AT-103 ❏ A/T fluid temperature se nsor, AT-109

❏ Vehicle speed sensor·A/T (Revolution sensor), AT-115 ❏ Engine speed signal, AT-120 ❏ Turbine revolution sensor, AT-200

❏ Torque converter clutch solenoid valve, AT-146 ❏ Line pressure solenoid valve, AT-159 ❏ Shift solenoid valve A, AT-165 ❏ Shift solenoid valve B, AT-170

. . .

❏ Throttle position sensor [accelerator pedal position (APP) sensor], AT-175 ❏ Overrun clutch solenoid valve, AT-180

. ❏ Park/neutral position (PNP) & 3 position switches circuit checks, and throttle position sensor [accelerator pedal position (APP) sensor] circuit check, AT-242

❏ A/T fluid temperature se nsor, AT-109 ❏ Vehicle speed sensor·MTR, AT-196 ❏ CAN communi cation line, AT-185

❏ Control unit (RAM), Control unit (ROM), AT-205 ❏ Control unit (EEP ROM), AT-207

❏ Battery ❏ Others

5. ❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-255

6. ❏ Perform all ROAD TEST and re-mark required procedures. AT-66

AT-75

4 → D3 ), AT-237 .

3 ), AT-237 .

2 ), AT-237 .

AT-58

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TROUBLE DIAGNOSIS - INTRODUCTION

7. ❏ Perform DTC CON FIRMATION PROCEDURE for following MIL indicating item s and check out NG items. Refer to EC-55, "

nostic Information" (with VQ35DE).

❏ DTC (P0731) A/T 1st gear function, AT-124 . ❏ DTC (P0732) A/T 2nd gear function, AT-129 ❏ DTC (P0733) A/T 3rd gear function, AT-134 ❏ DTC (P0734) A/T 4th gear function, AT-139 ❏ DTC (P0744) A/T TCC S/V function (lock-up), AT-151

8. ❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts. Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible symptoms and the component inspection orders.)

9. ❏ Erase DTC from TCM and ECM memories. AT-38

Emission-related Diagnostic Information" (with QR25DE), or EC-674, "Emission-related Diag-

. . .

EC-55 EC-674

AT-40 AT-50

Work Flow ECS004RB

HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REP AIR

A good understanding of the malfunction conditions can make troubleshoo ting faster and more accurate. In general, each customer feels differently about a problem. It is important to fully understand the symptoms or conditions for a customer complaint. Make good use of the two sheets provided, AT-56, "

sheet" , to perform the bes t troubleshooting possible.

Information from Customer" and AT-57, "Diagnostic Work-

AT-59

Page 78

WORK FLOW CHAR T

TROUBL E DIAGNOSI S - INTRODU CTION

*1: AT-56 *2: AT-57 *3: AT-9 *4: AT-61 *5: AT-61, AT-65 *6: AT-66 *7: AT-40 *8: AT-36 *9: AT-36 *10: AT-36 *11: AT-36 *12: AT-209 *13: AT-209 *14: AT-82 *15: AT-38 *16: AT-103 *17: AT-189 *18: EC-55 , EC-674

AT-60

SAT086JI

Page 79

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

TROUBLE DIAGNOSIS - BASIC INSPECTION PFP:00000

A/T Fluid Check ECS004RC

FLUID LEAKAGE CHECK

1. Clean area suspected of leaking. — for example, mating surface of converter housing and transmission case.

2. Start engine, apply foot brake, place selec tor lever in D posit ion and wait a few minutes.

3. Stop engine.

4. Check for fresh leakage.

FLUID CONDITION CHECK

Fluid color Suspected problem

Dark or black with burned odor Wear of frictional material Milky pink

Varnished fluid, light to dark brown and tacky

Water contamination — Road water entering through filler tube or breather

Oxidation — Over or under filling, — Overheating

WCIA0053E

SAT288G

SAT638A

FLUID LEVEL CHECK

Refer to MA-29, "Checking A/T Fluid" .

Stall Test ECS004RD

STALL TEST PROCEDURE

1. Check A/T fluid and engine oil levels. If necessary, add fluid and oil.

2. Drive vehicle fo r approximately 10 minute s or until fluid and oil reach operating temperature.

ATF operating temperature :50 - 80°C (122 - 176°F)

SAT647B

AT-61

Page 80

TROUBLE DIAGNOSI S - BA SIC INSPECTION

3. Set parking brake and block wheels.

4. Install a tachometer where it can be seen by driver during test.

● It is good practice to mark the point of specified engine

rpm on in dic at or.

5. Start engine, apply foot brake, and place selector lever in D position.

6. Accelerate to wide open throttle gradually while applying foot brake.

7. Quickly note the en gine stall revoluti on and immedi ately releas e throttle.

● During test, never h old throttle wid e open for less than 5

seconds.

SAT513G

Stall revolution QR25DE : 2,350 - 2,800 rpm

SAT514G

VQ35DE : 2,550 - 3,050 rpm

8. Move selector lever to N position.

9. Cool off ATF.

● Run engine at idle for at least one minute.

10. Repeat steps 5 through 9 with selector lever in 2, 1 and R posi tions.

LCIA0064E

JUDGEMENT OF STALL TEST

The test result and possible damaged components relating to each result are shown in the illustrations on next page. In order to pinpoint the possible damaged components, refer to AT-60, "

NOTE:

Stall revolution is too high in D, 2 or 1 position:

● Slippage occurs in 1st gea r but not in 2nd and 3rd gears. ..... Low one-way clutch slippage

● Slippage occurs in the following gears:

1st through 3rd gears in 3 position and engine brake functions. 1st and 2nd gears in 2 position and engine brake functions wi th accelerator pedal released (fully closed

throttle). ..... Forward clutch or forward one-way clutch slippage

Stall revolution is too high in R position:

● Engine brake does not function in 1 position. ..... Low & reverse brake slippage

● Engine brake functions in 1 position. ..... Reverse clutch slippage

Stall revolution within specifications:

● Vehicle does not achieve speed of mor e than 80 km/h (50 MPH). ..... One-w ay clutch seizure in torque

converter housi ng

CAUTION:

Be careful since automatic fluid temperature increases abnormally.

WORK FLOW CHART" .

AT-62

Page 81

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

● Slippage occurs in 3rd and 4th gears in D position. ..... High clutch slippage

● Slippage occurs in 2nd and 4th gear in D position. ..... Brake band slippage

● Engine brake does not functio n in 2nd and 3rd gea rs in D position, 2nd gear in 2 position, and 1st gea r in

1 position.

Stall revolution less than specifications:

AT-63

Page 82

TROUBLE DIAGNOSI S - BA SIC INSPECTION

● Poor acceleration during starts. ..... One-way clutch seizure in torque converter

AT-64

SAT499K

Page 83

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

Line Pressure Test ECS004RE

LINE PRESSURE TEST PORTS

Location of line pressure test ports are shown in the illustration.

● Always replace pressure plugs as they are self-sealing

bolts.

SAT301FA

LINE PRESSURE TEST PROCEDURE

1. Check A/T fluid and engine oil levels. If necessary, add fluid and oil.

2. Drive vehicle fo r approximately 10 minute s or until fluid and oil reach operating temperature.

ATF operating temperature :50 - 80°C (122 -

176°F)

3. Install pressure gauge to corresponding line pressure port.

SAT647B

AAT898

4. Set parking brake and block wheels.

● Cont inue to d epre ss brake p eda l fully wh ile lin e pressu re

test is being performed at stall speed.

AT-65

SAT513G

Page 84

TROUBLE DIAGNOSI S - BA SIC INSPECTION

5. Start engine and measure line pressure at idle and stall speed.

● When measu ring line pressure at stall speed, follow the

stall test procedure.

AT-65, " Test"

Line Pressure

: Refer to SDS, AT-365,

"Line Pressure"

JUDGEMENT OF LINE PRESSURE TEST

Judg ement Suspected pa rts

Line pressure is low in all positions.

Line pressure is low in particular position.

At idle

Line pressure is high.

Line pressure is low.

At stall speed

SAT493G

● Oil pump wear

● Control piston damage

● Pressure regula tor valve or plug sticking

● Spring for pressure r egulator valve da m aged

● Fluid pressure leakage between oil strainer and pres-

sure regulator valve

● Clogged strainer

● Fluid pressur e leakage between manual v al v e and par-

ticular clut ch

● For example, line pressure is:

− Low in R and 1 positions, but

− Normal in D and 2 positions.

Therefore, fluid leakage exists at or around low and reverse brake circuit. Refer to AT-19, "

● A/T fluid temperature sensor damaged

● Line pressure solenoid valve sticking

● Short circuit of line pressure solenoid valve circuit

● Pressure modifier valve sticking

● Pressure regula tor valve or plug sticking

● Open in dropping resistor circuit

● Line pressure solenoid valve sticking

● Short circuit of line pressure solenoid valve circuit

● Pressure regula tor valve or plug sticking

● Pressure modifier valve sticking

● Pilot valve sticking

CLUTCH AND BAND CHART" .

Road Test ECS004RF

DESCRIPTION

● The purpose of the test is to determine overall performance of A/

T and analyze causes of problems.

● The road test consists of the following three parts:

1. Check before engine is started

2. Check at idle

3. Cruise test

SAT786A

AT-66

Page 85

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

● Before road test, familiarize yourself with all test procedures and

items to check.

● Conduct tests on all items until specified symptom is found.

Troubleshoot items which check out No Good after road test. Refer to AT-36, "

DESCRIPTION" , and AT-209, "TROUBLE DIAGNOSIS FOR SYMPTOMS" .

ON BOARD DIAGNOSTIC SYSTEM

SAT496G

AT-67

Page 86

TROUBLE DIAGNOSI S - BA SIC INSPECTION

1. CHECK BEFORE ENGINE IS STARTED

1. CHECK A/T CHECK (POSITION) INDICATOR LAMP

1. Park vehicle on flat sur face.

2. Move selector lever to P position.

3. Turn ignition switch to OFF p osition. Wait at least 5 seconds.

4. Turn ignition switch to ON position. (Do not start engine.)

5. Does A /T check (position) indi cator lamp come on for about 2 seconds?

Yes or No

Yes >> GO TO 2. No >> Sto p ROAD TEST. Go to AT-213 , "

tion) Indicator Lamp Do es Not Come On" .

1. A/T Che ck (Posi-

2. CHECK A/T CHECK (POSITION) INDICATOR LAMP

Does A/T check (posi tion) OFF indicator lamp flicker for about 8 seconds?

Yes or No

Yes >> Perform self-diagnosis and check NG items on the

DIAGNOSTIC WORKSHEET, AT-57

"TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)" .

No >> 1. Turn ignition switch to OFF position.

2. Perform self-diagnosis and note NG items. Refer to AT-51, "

DURE (NO TOOLS)" .

3. Go to AT-68, "

TCM SELF-DIAGNOSTIC PROCE-

2. CHECK AT IDLE" .

. Refer to AT-51,

LCIA0043E

LCIA0044E

2. CHECK AT IDLE

1. CHECK ENGINE START

1. Park vehicle on flat sur face.

2. Move selector lever to P position.

3. Turn ignition switch to OFF position.

4. Turn ignition switch to START position.

5. Is eng ine started? Yes or No

Yes >> GO TO 2. No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-214, " tion" . Continue ROAD TEST.

2. Engine Cann ot Be Started In P and N P osi-

LCIA0065E

AT-68

Page 87

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

2. CHECK ENGINE START

1. Turn ignition switch to ACC position.

2. Move selector lever to D, 1, 2 or R position.

3. Turn ignition switch to START position.

4. Is engine started? Yes or No

Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-214, " tion" . Continue ROAD TEST.

No >> GO TO 3.

2. Engine Cannot Be Started In P and N Posi-

3. CHECK VEHICLE MOVE

1. Move selector lever to P position.

2. Turn ignition switch to OFF position.

3. Release parking brake.

LCIA0066E

4. Push vehi cle forward or backward.

5. Does vehicle move whe n it is pushed forward or backward?

6. Apply parking brake. Yes or No

Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-215, " Backward Wh en Pushed" . Continue ROAD TEST.

No >> GO TO 4.

3. In P Position, Vehicle Moves Forward or

4. CHECK VEHICLE MOVE

1. Start engine.

2. Move selector lever to N position.

3. Release parking brake.

4. Does vehicle move forward or backward? Yes or No

Yes >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-215, "

ROAD TEST.

No >> GO TO 5.

4. In N Position, Vehicle Moves" . Continue

LCIA0043E

SAT796A

AT-69

LCIA0064E

Page 88

TROUBLE DIAGNOSI S - BA SIC INSPECTION

5. CHECK SHIFT LOCK

1. Apply foot brake.

2. Move selector lever to R position.

3. Is there la rge shock when changing from N to R position? Yes or No

Yes >> Mark the box on the DIAGNOSTIC WORKSHEET . Go to

AT-217, "

ROAD TEST.

No >> GO TO 6.

5. Large Shock. N → R Position" . Continue

SAT797A

6. CHECK VEHICLE MOVE

1. Relea se foot brake for several seconds.

2. Does vehicle creep backward when foot brake is released? Yes or No

Yes >> GO TO 7. No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-219, " Position" . Continue ROAD TEST.

6. Vehicle Does Not Creep Backward In R

7. CHECK VEHICLE MOVE

1. Move s elec tor lev er t o D , 2 a nd 1 posi tions a nd c heck i f vehic le creeps forward.

2. Does vehicle creep forward in all three positions?

Yes or No

Ye s >> Go to AT-71, "3. CRUISE TEST" . No >> Mark the box on the DIAGNOSTIC WORKSHEET. Go to

AT-222, " or 1 Position" . Continue ROAD TEST.

7. Vehicle Does Not Cre ep Forward in D, 3, 2

LCIA0068E

SAT799A

AT-70

LCIA0069E

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TROUBLE DIA GNOSIS - BA SIC INSPEC TION

3. CRUISE TEST

● Check all ite ms listed in Parts 1 through 3.

SAT601J

With CONSULT-II

● Using CONSULT-II, conduct a cruise test and record the resul t.

● Print the result and e nsure that shifts and lock-ups take place a s per Shift Schedule. Refer to AT-364,

"Shift Schedule"

CONSULT-II Set ting Proce dure

1. Turn ignition switch OFF.

2. Connect CONSULT-II to data link connector, which is located i n left side dash panel.

LCIA0042E

3. Turn ignition switch ON.

4. Touch “START”.

5. Touch “A/T ”.

SAT586J

SAT014K

AT-71

Page 90

TROUBLE DIAGNOSI S - BA SIC INSPECTION

6. Touch “DATA MONITOR”.

7. Touch “MAIN SIGNALS” or “TCM INPUT SIGNALS”.

8. See “N umeri cal Di spla y”, “B arch art Di splay ” o r “Line Grap h Dis play”.

SAT971J

9. Touch “SETTIN G” to set recording condition (“AUTO TRIG” or “MANU TRIG”) and touch “BACK”.

10. Touch “Start”.

11. When performing cruise test, touch “RECORD”.

SAT175K

SAT973J

AT-72

SAT134K

Page 91

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

12. After finishing cruise test part 1, touch “STOP”.

13. Touch “STORE” and touch “BACK”.

SAT135K

SAT987J

14. Touch “D ISPLAY”.

15. Touc h “PRINT ” .

16. Check the monitor data printed out.

17. Continue cruise test part 2 and 3.

SAT974J

SAT975J

AT-73

Page 92

TROUBLE DIAGNOSI S - BA SIC INSPECTION

Without CONSULT-II

● Throttle position sensor can be checked by voltage across termi-

nals 41 (W) and 42 (B) of TCM.

LCIA0097E

AT-74

Page 93

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

Cruise Test — Part 1

1. CHECK STARTING GEAR (D1 ) POSITION

1. Drive vehic le for approximately 10 minutes to warm engine oil and ATF up to operating temperature.

ATF operating tempera-

:50 - 80°C (122 - 176°F)

ture

2. Park vehicle on flat surface.

3. Set gear selector lever to D position.

4. Move selector lever to P position.

5. Start engine.

LCIA0043E

6. Move selector lever to D position.

7. Accelerate vehicle by constantly depressing accelerator pedal half-way.

8. Does vehicle start from D

1 ?

Read gear position.

Yes or No

Yes >> GO TO 2. No >> Go to AT-224, "

8. Vehicle Cannot Be Started From D 1" .

Continue ROAD TEST.

LCIA0045E

SAT495G

AT-75

Page 94

TROUBLE DIAGNOSI S - BA SIC INSPECTION

2. CHECK SHIFT UP (D1 TO D2 )

Does A/T shift from D

1 to D2 at the specified speed?

Read gear position, throttle opening and vehicle speed.

Specified speed when shifting fr om D

1 to D2

:Refer to AT-364, "Shift

Schedule" .

Yes or No

Yes >> GO TO 3. No >> Go to AT-227, "

9. A/T Does Not Shift: D1 → D2 or Does

Not Kickdown: D4 → D2" . Continue ROAD TEST.

3. CHECK SHIFT UP (D2 TO D3 )

Does A/T shift from D

Read gear position, throttle opening and vehicle speed.

Specified speed when shifting fr om D

Yes or No

Yes >> GO TO 4. No >> Go to AT-229, "

tinue ROAD TEST.

2 to D3 at the specified speed?

:Refer to AT-364, "Shift

2 to D3

Schedule"

10. A/T Do es Not Shi ft: D 2 → D3" . Con-

SAT954I

4. CHECK SHIFT UP (D3 TO D4 )

Does A/T shift from D

Read gear position, throttle opening and vehicle speed.

Specified speed when shifting fr om D

Yes or No

Yes >> GO TO 5. No >> Go to AT- 231, "

tinue ROAD TEST.

3 to D4 at the specified speed?

:Refer to AT-364, "Shift

3 to D4

Schedule" .

11. A/T Do es N ot Sh ift : D 3 → D4" . Con-

SAT955I

SAT956I

AT-76

Page 95

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

5. CHECK LOCK-UP (D4 TO D4 L/U)

Does A/T perform lock-up at the specified speed?

Read vehicle speed, throttle opening when lock-up duty becomes 94%.

Specified speed when lock-up occurs

Yes or No

Yes >> GO TO 6. No >> Go to AT-234, "

Continue ROAD TEST.

:Refer to AT-364, "

Schedule" .

12. A/T Does Not Perform Lock-up" .

Shift

6. CHECK HO LD LOCK-UP

Does A/T hold lock-up condition for more than 30 seconds? Yes or No

Yes >> GO TO 7. No >> Go to AT-235, "

13. A/T Does Not Hold Lock-up Condition" .

7. CHECK SHIFT DOWN (D4 L/U TO D4 )

1. Release accelerator pedal.

2. Is lock-up released when accelerator pedal is released?

Yes or No

Yes >> GO TO 8. No >> Go to AT-236, "

ROAD TEST.

14. Lock-up Is N ot Rel eased" . C ontinu e

SAT957I

8. CHECK SHIFT DOWN (D4 TO D3 )

1. Decelerate vehicle by applying foot brake lightly.

2. Does engine speed return to idle smoot hly when A/T is shifted from D

Yes or No

Yes >> 1. Stop vehicle.

No >> Go to AT-237, "

4 to D3 ?

Read gear position and engine speed.

2. Go to AT-78, "

Idle (Light Braking D4 → D3 )" . Continue ROAD TEST.

Cruise Test — Part 2" .

15. Engine Sp eed Does Not Return To

SAT958I

SAT959I

AT-77

Page 96

TROUBLE DIAGNOSI S - BA SIC INSPECTION

Cruise Test — Part 2

1. CHECK STARTING GEAR (D1 ) POSITION

1. Confirm gear selector lever is in D position.

2. Accelerate vehicle by half throttle again.

3. Does vehicle start from D Read gear p osition.

Yes or No

Yes >> GO TO 2. No >> Go to AT-239, "

Continue ROAD TEST.

1 ?

16. Vehicle Does Not Start From D1" .

2. CHECK SHIFT UP AND SHIFT DOWN (D3 TO D4 TO D2 )

1. Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.

2. Relea se accelerator pedal and then quickly depress it fully.

3. Does A/T shift fr om D

depressed fully?

Read gear position and throttle opening.

Yes or No

Yes >> GO TO 3. No >> Go to AT-227, "

Not Kickdown: D4 → D2" . Continue ROAD TEST.

4 to D2 as soon as acceler ator pedal is

9. A/T Does Not Shift: D1 → D2 or Does

SAT495G

3. CHECK SHIFT UP (D2 TO D3 )

Does A/T shift from D

Read gear position, throttle opening and vehicle speed.

Specified speed when shifting fr om D

Yes or No

Yes >> GO TO 4. No >> Go to AT-229, "

tinue ROAD TEST.

2 to D3 at the specified speed?

:Refer to AT-364, "Shift

2 to D3

10. A/T Do es Not Shi ft: D 2 → D3" . Con-

Schedule" .

SAT404H

SAT960I

AT-78

Page 97

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

4. CHECK SHIFT UP (D3 TO D4 ) AND ENGINE BRAKE

Release accelerator pedal after shifting from D Does A/T shift from D

3 to D4 and does vehic le decelerate by engine brake?

Read gear position, throttle opening and vehicle spe ed.

Yes or No

Yes >> 1. Stop vehicle.

2. Go to AT-80, "

No >> Go to AT-231, "

Cruise Test — Part 3" .

11. A/T D oes N ot Shift: D 3 → D4" . Con-

tinue ROAD TEST.

2 to D3 .

SAT405H

AT-79

Page 98

TROUBLE DIAGNOSI S - BA SIC INSPECTION

Cruise Test — Part 3

1. VEHICLE SPEED (D4 ) POSITION

1. Confirm gear selector lever is in D position.

2. Accelerate vehicle using half-throttle t o D

3. Release accelerator pedal.

4. Move gear selector lever from D position to 3 position while driv-

ing in D

5. Does A/T shift from D

4 .

4 to 3?

Read gear position and vehicle speed.

4 .

SAT812A

Yes or No

Yes >> GO TO 2. No >> Go to AT-2 3 9 , "

17. A/T Does Not Shift: D4 → 33 , When A/T Selector L ever D → 3" . Con tinue

ROAD TEST.

2. CHECK ENG IN E BRAK E

Does vehicle decelerate by engine brake? Yes or No

Yes >> GO TO 3. No >> Go to AT-237, "

Idle (L ight Braking D4 → D3 )" . Continue ROAD TEST.

15. Engine Spe ed Does Not Return To

SAT813A

LCIA0071E

AT-80

LCIA0071E

Page 99

TROUBLE DIA GNOSIS - BA SIC INSPEC TION

3. CHECK SHIFT DOWN (33 TO 22 )

1. Move selector lever from 3 to 2 position while driving in 3

2. Does A/T shift from 3

Read gear position.

Yes or No

Yes >> GO TO 4. No >> Go to AT-240, "

Selector Lever 3 → 2 Position" . Continue ROAD TEST.

3 to 22 ?

18. A/T Doe s Not Shift: 33 → 22 , When

4. CHECK ENGINE BRAKE

Does vehicle decelerate by engine brake? Yes or No

Yes >> GO TO 5. No >> Go to AT-237, "

Idle (Light Braking D4 → D3 )" . Continue ROAD TEST.

15. Engine Sp eed Does Not Return To

3 .

LCIA0072E

5. CHECK SHIFT DOWN (22 TO 11 )

1. Move selector lever from 2 to 1 position while driving in 2

2. Does A/T shift from 2

Read gear position.

Yes or No

Yes >> GO TO 6. No >> Go to AT-2 40 , "

Selector Lever 2 → 1 Position" . Continue ROAD TEST.

2 to 11 position?

19. A/T Does Not Shift: 22 → 11 , When

6. CHECK ENGINE BRAKE

Does vehicle decelerate by engine brake? Yes or No

Yes >> 1. Stop vehicle.

2. Perform self- diagnosis. Refer t o AT-51, "

DIAGNOSTIC PROCEDURE (NO TOOLS)" .

No >> Go to AT-241, "

Engine Brake" . Continue ROAD TEST.

20. Vehicle Does Not Decelerate By

TCM SELF-

2 .

LCIA0072E

LCIA0073E

AT-81

LCIA0073E

Page 100

TROUBLE DIAGNOSIS - GEN ERAL DESCRIPTION

TROUBL E DIAGNOSI S - GENERAL D ESCRIPTION

PFP:00000

Symptom Chart ECS004RG

Numbers are arranged in order of inspection. Perform inspections starting with number one and work up.

Items Symptom Conditi o n Diagnostic I tem Referenc e Pag e

No Lock-up Engagement/ TCC Inoperative

Shift Shock

Torque converter is not locked up.

Torque converter clutch pist on slip.

Lock-up point is extrem ely hi g h or low.

Sharp shock in shifting from N to D position.

1. Thrott le posi tion sen sor [acce lerat or peda l positi on (AP P) sen sor] adjustment

2. Vehicle speed sensor·A/T (Revolution sensor) and vehicle speed sensor·MTR

3. Park/n eut r al pos i ti o n (PNP ) switch adjustment

ON vehicl e

OFF vehicle 9. Torque converter AT-268

ON vehicl e

OFF vehicle 7. Torque converter AT-268

ON vehicl e

OFF vehicle 9. Forward clutch AT-313

4. Engine speed signal AT-120

5. A/T fluid temperature sensor AT-109

6. Line pressure test AT-65

7. Torque converter clutch solenoid valve AT-146

8. Control valve assembly AT-255

1. Fluid leve l AT-61

2. Thrott le posi tion sen sor [acce lerat or peda l positi on (AP P) sen sor] adjustment

3. Line pressure test AT-65

4. Torque converter clutch solenoid valve AT-146

5. Line pressure solenoid valve AT-159

6. Control valve assembly AT-255

1. Thrott le posi tion sen sor [acce lerat or peda l positi on (AP P) sen sor] adjustment

2. Vehicle speed sensor·A/T (Revolution sensor) and vehicle speed sensor·MTR

3. Torque converter clutch solenoid valve AT-146

4. Control valve assembly AT-255

1. Engine idling rpm EC-38

2. Thrott le posi tion sen sor [acce lerat or peda l positi on (AP P) sen sor] adjustment

3. Line pressure test AT-65

4. A/T fluid temperature sensor AT-109

5. Engine speed signal AT-120

6. Line pressure solenoid valve AT-159

7. Control valve assembly AT-255

8. Accumula t or N-D AT-268

EC-49

(with QR25DE)

EC-657

(with VQ35DE)

, AT-196

AT-115

AT-257

EC-49 (with QR25DE) EC-657

(with VQ35DE)

(with QR25DE)

EC-49 EC-657

(with VQ35DE)

AT-115

, AT-196

, EC-657

EC-49 (with QR25DE)

(with VQ35DE)

EC-657

AT-82