Infiniti I35 (A33). Manual — part 1

AUTOMATIC 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-TENSIONER

″

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

Precautions for On Board Diagnostic (OBD)
System of A/T and Engine. . . . . . . . . . ...7
Precautions . . . . . . . . . . . . . . . . ..7
Service Notice or Precautions . . . . . . . . . .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 Diagram . . . . . . . . . . . . . . ..16
Cross-sectional View . . . . . . . . . . . . .17
Hydraulic Control Circuit. . . . . . . . . . . 18
Shift Mechanism . . . . . . . . . . . . . . 19
Control System . . . . . . . . . . . . . . ..28
CAN Communication . . . . . . . . . . . . .29
Control Mechanism. . . . . . . . . . . . . 30
Control Valve . . . . . . . . . . . . . . . .34

ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION . . . . . . . . . . . . . . . ...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. . . ..52

TROUBLE DIAGNOSIS - INTRODUCTION. . . . ..58

Introduction . . . . . . . . . . . . . . . . 58
Work Flow. . . . . . . . . . . . . . . . ..62

TROUBLE DIAGNOSIS - BASIC INSPECTION . . ...64

A/T Fluid Check . . . . . . . . . . . . . . .64
Stall Test . . . . . . . . . . . . . . . . . 64

Line Pressure Test. . . . . . . . . . . . . .68
Road Test. . . . . . . . . . . . . . . . ...69

TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION . . . . . . . . . . . . . . . ...87

Symptom Chart. . . . . . . . . . . . . . ..87
TCM Terminals and Reference Value. . . . . . 98

TROUBLE DIAGNOSIS FOR POWER SUPPLY. . 101

Wiring Diagram - AT - MAIN. . . . . . . . . 101
Diagnostic Procedure . . . . . . . . . . . ..102

DTC U1000 CAN COMMUNICATION LINE . . . ...104

Description . . . . . . . . . . . . . . . ...104
On Board Diagnosis Logic. . . . . . . . . ...104
Possible Cause. . . . . . . . . . . . . . 104
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 105
Wiring Diagram - AT - CAN . . . . . . . . . .106
Diagnostic Procedure . . . . . . . . . . . ..107

DTC P0705 PARK/NEUTRAL POSITION SWITCH ...108

Description . . . . . . . . . . . . . . . ...108
On Board Diagnosis Logic. . . . . . . . . ...108
Possible Cause. . . . . . . . . . . . . . 109
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 109
Wiring Diagram - AT - PNP/SW. . . . . . . ... 110
Diagnostic Procedure . . . . . . . . . . . .. 111

DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT . . . . . . . . . . . . . . . . . ... 114

Description . . . . . . . . . . . . . . . ... 114
On Board Diagnosis Logic. . . . . . . . . ... 114
Possible Cause. . . . . . . . . . . . . . 115
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 115
Wiring Diagram - AT - FTS . . . . . . . . . .. 116
Diagnostic Procedure . . . . . . . . . . . .. 117

DTC P0720 VEHICLE SPEED SENSOR.A/T
(REVOLUTION SENSOR) . . . . . . . . . . ...120

Description . . . . . . . . . . . . . . . ...120
On Board Diagnosis Logic. . . . . . . . . ...120
Possible Cause. . . . . . . . . . . . . . 120

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Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 121
Wiring Diagram - AT - VSSA/T . . . . . . . . 122
Diagnostic Procedure . . . . . . . . . . . ..123

DTC P0725 ENGINE SPEED SIGNAL . . . . . ...125

Description . . . . . . . . . . . . . . . ...125
On Board Diagnosis Logic. . . . . . . . . ...125
Possible Cause. . . . . . . . . . . . . . 125
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 126
Wiring Diagram - AT - ENGSS . . . . . . . . 127
Diagnostic Procedure . . . . . . . . . . . ..128

DTC P0731 A/T 1ST GEAR FUNCTION . . . . . 130

Description . . . . . . . . . . . . . . . ...130
On Board Diagnosis Logic. . . . . . . . . ...130
Possible Cause. . . . . . . . . . . . . . 131
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 131
Wiring Diagram - AT - 1ST . . . . . . . . . ..133
Diagnostic Procedure . . . . . . . . . . . ..134

DTC P0732 A/T 2ND GEAR FUNCTION . . . . . 136

Description . . . . . . . . . . . . . . . ...136
On Board Diagnosis Logic. . . . . . . . . ...136
Possible Cause. . . . . . . . . . . . . . 137
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 137
Wiring Diagram - AT - 2ND. . . . . . . . . ..139
Diagnostic Procedure . . . . . . . . . . . ..140

DTC P0733 A/T 3RD GEAR FUNCTION . . . . . 142

Description . . . . . . . . . . . . . . . ...142
On Board Diagnosis Logic. . . . . . . . . ...142
Possible Cause. . . . . . . . . . . . . . 143
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 143
Wiring Diagram - AT - 3RD. . . . . . . . . ..145
Diagnostic Procedure . . . . . . . . . . . ..146

DTC P0734 A/T 4TH GEAR FUNCTION . . . . . 148

Description . . . . . . . . . . . . . . . ...148
On Board Diagnosis Logic. . . . . . . . . ...149
Possible Cause. . . . . . . . . . . . . . 149
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 150
Wiring Diagram - AT - 4TH . . . . . . . . . ..152
Diagnostic Procedure . . . . . . . . . . . ..153

DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE. . . . . . . . . . . . . ..157

Description . . . . . . . . . . . . . . . ...157
On Board Diagnosis Logic. . . . . . . . . ...157
Possible Cause. . . . . . . . . . . . . . 157
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 158
Wiring Diagram - AT - TCV. . . . . . . . . ..159

Diagnostic Procedure . . . . . . . . . . . ..160

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) . 162

Description . . . . . . . . . . . . . . . ...162
On Board Diagnosis Logic. . . . . . . . . ...162
Possible Cause. . . . . . . . . . . . . . 163
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 163
Wiring Diagram - AT - TCCSIG . . . . . . . ...165
Diagnostic Procedure . . . . . . . . . . . ..166

DTC P0745 LINE PRESSURE SOLENOID VALVE ...172

Description . . . . . . . . . . . . . . . ...172
On Board Diagnosis Logic. . . . . . . . . ...172
Possible Cause. . . . . . . . . . . . . . 173
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 173
Wiring Diagram - AT - LPSV. . . . . . . . . 174
Diagnostic Procedure . . . . . . . . . . . ..175

DTC P0750 SHIFT SOLENOID VALVE A . . . . ..178

Description . . . . . . . . . . . . . . . ...178
On Board Diagnosis Logic. . . . . . . . . ...178
Possible Cause. . . . . . . . . . . . . . 178
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 179
Wiring Diagram - AT - SSV/A . . . . . . . . ..180
Diagnostic Procedure . . . . . . . . . . . ..181

DTC P0755 SHIFT SOLENOID VALVE B . . . . ..183

Description . . . . . . . . . . . . . . . ...183
On Board Diagnosis Logic. . . . . . . . . ...183
Possible Cause. . . . . . . . . . . . . . 183
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 184
Wiring Diagram - AT - SSV/B . . . . . . . . ..185
Diagnostic Procedure . . . . . . . . . . . ..186

DTC P1705 ACCELERATOR PEDAL POSITION
SENSOR (THROTTLE POSITION SENSOR). . . .188

Description . . . . . . . . . . . . . . . ...188
On Board Diagnosis Logic. . . . . . . . . ...189
Possible Cause. . . . . . . . . . . . . . 189
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 190
Wiring Diagram - AT - TPS. . . . . . . . . ..191
Diagnostic Procedure . . . . . . . . . . . ..192

DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE. . . . . . . . . . . . . . . . . . ..194

Description . . . . . . . . . . . . . . . ...194
On Board Diagnosis Logic. . . . . . . . . ...194
Possible Cause. . . . . . . . . . . . . . 194
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 195
Wiring Diagram - AT - OVRCSV. . . . . . . ..196
Diagnostic Procedure . . . . . . . . . . . ..197

CONTENTS

(Cont’d)

AT-2

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE) . 199

Description . . . . . . . . . . . . . . . ...199
On Board Diagnosis Logic. . . . . . . . . ...200
Possible Cause. . . . . . . . . . . . . . 200
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 200
Wiring Diagram - AT - BA/FTS . . . . . . . . 201
Diagnostic Procedure . . . . . . . . . . . ..202

DTC VEHICLE SPEED SENSOR.MTR . . . . . ...206

Description . . . . . . . . . . . . . . . ...206
On Board Diagnosis Logic. . . . . . . . . ...206
Possible Cause. . . . . . . . . . . . . . 206
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 207
Wiring Diagram - AT - VSSMTR. . . . . . . ..208
Diagnostic Procedure . . . . . . . . . . . ..209

DTC POWER TRAIN REVOLUTION SENSOR . . .. 211

Description . . . . . . . . . . . . . . . ... 211
On Board Diagnosis Logic. . . . . . . . . ... 211
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 212
Wiring Diagram - AT - P/T SEN-01 . . . . . . .213
Diagnostic Procedure . . . . . . . . . . . ..214
Component Inspection. . . . . . . . . . . .215

DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM). . . . . . . . . . . . . . . . . . ...216

Description . . . . . . . . . . . . . . . ...216
On Board Diagnosis Logic. . . . . . . . . ...216
Possible Cause. . . . . . . . . . . . . . 216
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 216
Diagnostic Procedure . . . . . . . . . . . ..217

DTC CONTROL UNIT (EEP ROM) . . . . . . . .218

Description . . . . . . . . . . . . . . . ...218
On Board Diagnosis Logic. . . . . . . . . ...218
Possible Cause. . . . . . . . . . . . . . 218
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 218
Diagnostic Procedure . . . . . . . . . . . ..219

TROUBLE DIAGNOSES FOR SYMPTOMS . . . ...220

Wiring Diagram - AT - NONDTC . . . . . . . .220
A/T CHECK Indicator Lamp Does Not Come On ...222
Engine Cannot Be Started In P and N Position. ..224
In P Position, Vehicle Moves Forward or
Backward When Pushed . . . . . . . . . . .226
In N Position, Vehicle Moves. . . . . . . . ...227
Large Shock. N -> R Position . . . . . . . . .229
Vehicle Does Not Creep Backward In R Position ...231
Vehicle Does Not Creep Forward in D, 2nd or
1st Position . . . . . . . . . . . . . . . ..234
Vehicle Cannot Be Started From D

1

. . . . . ...237

A/T Does Not Shift: D

1

-> D

2

or Does Not

Kickdown: D

4

-> D

2

. . . . . . . . . . . . ..240

A/T Does Not Shift: D

2

-> D

3

. . . . . . . . ...243

A/T Does Not Shift: D

3

-> D

4

. . . . . . . . ...246

A/T Does Not Perform Lock-up . . . . . . . ...249
A/T Does Not Hold Lock-up Condition . . . . . 251
Lock-up Is Not Released . . . . . . . . . . .253
Engine Speed Does Not Return To Idle (Light
Braking D

4

-> D

3

). . . . . . . . . . . . . .254

Vehicle Does Not Start From D

1

. . . . . . . .257

A/T Does Not Shift: D

4

-> D

3

, When 3rd Position

Switch ON -> OFF . . . . . . . . . . . . ...258
A/T Does Not Shift: D

3

-> 2

2

, When Selector

Lever D -> 2nd Position . . . . . . . . . . ..259
A/T Does Not Shift: 2

2

-> 1

1

, When Selector

Lever 2nd -> 1st Position . . . . . . . . . . 260
Vehicle Does Not Decelerate By Engine Brake . ..263
TCM Self-diagnosis Does Not Activate . . . . ...265

A/T SHIFT LOCK SYSTEM. . . . . . . . . . .275

Description . . . . . . . . . . . . . . . ...275
Shift Lock System Electrical Parts Location. . . 275
Wiring Diagram - SHIFT -. . . . . . . . . . 276
Shift Lock Control Unit Reference Values. . . ...277
Component Inspection. . . . . . . . . . . .278

SHIFT CONTROL SYSTEM . . . . . . . . . . 281

Control Cable. . . . . . . . . . . . . . ...281

ON-VEHICLE SERVICE . . . . . . . . . . . ..282

Control Valve Assembly and Accumulators. . . .282
Revolution Sensor Replacement . . . . . . . .283
Park/Neutral Position (PNP) Switch Adjustment . .283
Control Cable Adjustment. . . . . . . . . . 284
Differential Side Oil Seal Replacement . . . . ...284

REMOVAL AND INSTALLATION . . . . . . . ...285

Removal. . . . . . . . . . . . . . . . ...285
Installation. . . . . . . . . . . . . . . . 286

OVERHAUL . . . . . . . . . . . . . . . . .288

Components. . . . . . . . . . . . . . . .288
Oil Channel . . . . . . . . . . . . . . . ..291
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings . . . . . . . 292

DISASSEMBLY. . . . . . . . . . . . . . . 293
REPAIR FOR COMPONENT PARTS . . . . . . .307

Manual Shaft. . . . . . . . . . . . . . . 307
Oil Pump . . . . . . . . . . . . . . . . ..310
Control Valve Assembly. . . . . . . . . . ...314
Control Valve Upper Body . . . . . . . . . ...322
Control Valve Lower Body . . . . . . . . . ...326
Reverse Clutch . . . . . . . . . . . . . . 328
High Clutch . . . . . . . . . . . . . . . ..331
Forward and Overrun Clutches . . . . . . . ...336
Low & Reverse Brake. . . . . . . . . . . ..341

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CONTENTS

(Cont’d)

AT-3

Rear Internal Gear, Forward Clutch Hub and
Overrun Clutch Hub. . . . . . . . . . . . .344
Output Shaft, Idler Gear, Reduction Pinion Gear
and Bearing Retainer. . . . . . . . . . . ...348
Band Servo Piston Assembly . . . . . . . . ..353
Final Drive. . . . . . . . . . . . . . . . 358

ASSEMBLY. . . . . . . . . . . . . . . . ..362

Assembly (1). . . . . . . . . . . . . . . 362
Adjustment (1) . . . . . . . . . . . . . . .362
Assembly (2). . . . . . . . . . . . . . . 367
Adjustment (2) . . . . . . . . . . . . . . .373
Assembly (3). . . . . . . . . . . . . . . 375

SERVICE DATA AND SPECIFICATIONS (SDS) . ...381

General Specifications. . . . . . . . . . . .381
Shift Schedule. . . . . . . . . . . . . . ..381
Stall Revolution. . . . . . . . . . . . . . 381
Line Pressure. . . . . . . . . . . . . . ...382
Control Valves. . . . . . . . . . . . . . ..382

Accumulator . . . . . . . . . . . . . . . .382
Clutch and Brakes . . . . . . . . . . . . ...383
Final Drive. . . . . . . . . . . . . . . . 385
Planetary Carrier and Oil Pump . . . . . . . ..386
Input Shaft . . . . . . . . . . . . . . . ...387
Reduction Pinion Gear . . . . . . . . . . . 387
Band Servo . . . . . . . . . . . . . . . ..388
Output Shaft. . . . . . . . . . . . . . . .388
Bearing Retainer. . . . . . . . . . . . . ..389
Total End Play. . . . . . . . . . . . . . ..389
Reverse Clutch End Play . . . . . . . . . . 389
Removal and Installation . . . . . . . . . . .390
Shift Solenoid Valves. . . . . . . . . . . ...390
Solenoid Valves . . . . . . . . . . . . . ...390
A/T Fluid Temperature Sensor. . . . . . . . .390
Revolution Sensor (For Speed Sensor) . . . . ..390
Dropping Resistor . . . . . . . . . . . . . 390
Power Train Revolution Sensor. . . . . . . ...390

CONTENTS

(Cont’d)

AT-4