Infiniti I30 (A33). Manual — part 1

AUTOMATIC TRANSAXLE

SECTION

AT

CONTENTS

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

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

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

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
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. . . ..49

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

TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION . . . . . . . . . . . . . . . ...84

Symptom Chart. . . . . . . . . . . . . . ..84
TCM Terminals and Reference Value. . . . . . 94

TROUBLE DIAGNOSIS FOR POWER SUPPLY. . ..99

Wiring Diagram - AT - MAIN. . . . . . . . . ..99
Diagnostic Procedure . . . . . . . . . . . ..100

DTC P0705 PARK/NEUTRAL POSITION SWITCH ...102

Description . . . . . . . . . . . . . . . ...102
On Board Diagnosis Logic. . . . . . . . . ...102
Possible Cause. . . . . . . . . . . . . . 103
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 103
Wiring Diagram - AT - PNP/SW. . . . . . . ...104
Diagnostic Procedure . . . . . . . . . . . ..105

DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT . . . . . . . . . . . . . . . . . ...108

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

DTC P0720 VEHICLE SPEED SENSOR.A/T
(REVOLUTION SENSOR) . . . . . . . . . . ... 114

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

DTC P0725 ENGINE SPEED SIGNAL . . . . . ... 119

Description . . . . . . . . . . . . . . . ... 119
On Board Diagnosis Logic. . . . . . . . . ... 119
Possible Cause. . . . . . . . . . . . . . 119
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 120

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Wiring Diagram - AT - ENGSS . . . . . . . . 121
Diagnostic Procedure . . . . . . . . . . . ..122

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

Description . . . . . . . . . . . . . . . ...124
On Board Diagnosis Logic. . . . . . . . . ...124
Possible Cause. . . . . . . . . . . . . . 125
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 125
Wiring Diagram - AT - 1ST . . . . . . . . . ..127
Diagnostic Procedure . . . . . . . . . . . ..128

DTC P0732 A/T 2ND GEAR FUNCTION . . . . . 130

Description . . . . . . . . . . . . . . . ...130
On Board Diagnosis Logic. . . . . . . . . ...130
Possible Cause. . . . . . . . . . . . . . 131
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 131
Wiring Diagram - AT - 2ND. . . . . . . . . ..133
Diagnostic Procedure . . . . . . . . . . . ..134

DTC P0733 A/T 3RD GEAR FUNCTION . . . . . 136

Description . . . . . . . . . . . . . . . ...136
On Board Diagnosis Logic. . . . . . . . . ...136
Possible Cause. . . . . . . . . . . . . . 137
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 137
Wiring Diagram - AT - 3RD. . . . . . . . . ..139
Diagnostic Procedure . . . . . . . . . . . ..140

DTC P0734 A/T 4TH GEAR FUNCTION . . . . . 142

Description . . . . . . . . . . . . . . . ...142
On Board Diagnosis Logic. . . . . . . . . ...143
Possible Cause. . . . . . . . . . . . . . 143
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 144
Wiring Diagram - AT - 4TH . . . . . . . . . ..146
Diagnostic Procedure . . . . . . . . . . . ..147

DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE. . . . . . . . . . . . . ..151

Description . . . . . . . . . . . . . . . ...151
On Board Diagnosis Logic. . . . . . . . . ...151
Possible Cause. . . . . . . . . . . . . . 151
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 152
Wiring Diagram - AT - TCV. . . . . . . . . ..153
Diagnostic Procedure . . . . . . . . . . . ..154

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) . 156

Description . . . . . . . . . . . . . . . ...156
On Board Diagnosis Logic. . . . . . . . . ...156
Possible Cause. . . . . . . . . . . . . . 157
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 157
Wiring Diagram - AT - TCCSIG . . . . . . . ...159
Diagnostic Procedure . . . . . . . . . . . ..160

DTC P0745 LINE PRESSURE SOLENOID VALVE ...166

Description . . . . . . . . . . . . . . . ...166
On Board Diagnosis Logic. . . . . . . . . ...166
Possible Cause. . . . . . . . . . . . . . 167
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 167
Wiring Diagram - AT - LPSV. . . . . . . . . 168
Diagnostic Procedure . . . . . . . . . . . ..169

DTC P0750 SHIFT SOLENOID VALVE A . . . . ..172

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

DTC P0755 SHIFT SOLENOID VALVE B . . . . ..177

Description . . . . . . . . . . . . . . . ...177
On Board Diagnosis Logic. . . . . . . . . ...177
Possible Cause. . . . . . . . . . . . . . 177
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 178
Wiring Diagram - AT - SSV/B . . . . . . . . ..179
Diagnostic Procedure . . . . . . . . . . . ..180

DTC P1705 THROTTLE POSITION SENSOR . . ...182

Description . . . . . . . . . . . . . . . ...182
On Board Diagnosis Logic. . . . . . . . . ...183
Possible Cause. . . . . . . . . . . . . . 183
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 184
Wiring Diagram - AT - TPS. . . . . . . . . ..185
Diagnostic Procedure . . . . . . . . . . . ..186

DTC P1760 OVERRUN CLUTCH SOLENOID
VALVE. . . . . . . . . . . . . . . . . . ..191

Description . . . . . . . . . . . . . . . ...191
On Board Diagnosis Logic. . . . . . . . . ...191
Possible Cause. . . . . . . . . . . . . . 191
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 192
Wiring Diagram - AT - OVRCSV. . . . . . . ..193
Diagnostic Procedure . . . . . . . . . . . ..194

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE) . 196

Description . . . . . . . . . . . . . . . ...196
On Board Diagnosis Logic. . . . . . . . . ...197
Possible Cause. . . . . . . . . . . . . . 197
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 197
Wiring Diagram - AT - BA/FTS . . . . . . . . 198
Diagnostic Procedure . . . . . . . . . . . ..199

DTC VEHICLE SPEED SENSOR.MTR . . . . . ...203

Description . . . . . . . . . . . . . . . ...203
On Board Diagnosis Logic. . . . . . . . . ...203

CONTENTS

(Cont’d)

AT-2

Possible Cause. . . . . . . . . . . . . . 203
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 204
Wiring Diagram - AT - VSSMTR. . . . . . . ..205
Diagnostic Procedure . . . . . . . . . . . ..206

DTC A/T COMM LINE . . . . . . . . . . . . .208

Description . . . . . . . . . . . . . . . ...208
On Board Diagnosis Logic. . . . . . . . . ...208
Possible Cause. . . . . . . . . . . . . . 208
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 209
Wiring Diagram - AT - LAN. . . . . . . . . ..210
Diagnostic Procedure . . . . . . . . . . . .. 211

DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM). . . . . . . . . . . . . . . . . . ...212

Description . . . . . . . . . . . . . . . ...212
On Board Diagnosis Logic. . . . . . . . . ...212
Possible Cause. . . . . . . . . . . . . . 212
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 212
Diagnostic Procedure . . . . . . . . . . . ..213

DTC CONTROL UNIT (EEP ROM) . . . . . . . .214

Description . . . . . . . . . . . . . . . ...214
On Board Diagnosis Logic. . . . . . . . . ...214
Possible Cause. . . . . . . . . . . . . . 214
Diagnostic Trouble Code (DTC) Confirmation
Procedure . . . . . . . . . . . . . . . . 214
Diagnostic Procedure . . . . . . . . . . . ..215

TROUBLE DIAGNOSES FOR SYMPTOMS . . . ...216

Wiring Diagram - AT - NONDTC . . . . . . . .216
1. O/D OFF Indicator Lamp Does Not Come On. 219
2. Engine Cannot Be Started In P and N Position..222
3. In P Position, Vehicle Moves Forward or
Backward When Pushed . . . . . . . . . . .223
4. In N Position, Vehicle Moves . . . . . . . ..224
5. Large Shock. N -> R Position . . . . . . . .227
6. Vehicle Does Not Creep Backward In R
Position . . . . . . . . . . . . . . . . . 229
7. Vehicle Does Not Creep Forward in D, 2 or 1
Position . . . . . . . . . . . . . . . . . 233
8. Vehicle Cannot Be Started From D

1

. . . . ...236

9. A/T Does Not Shift: D

1

-> D

2

or Does Not

Kickdown: D

4

-> D

2

. . . . . . . . . . . . ..239

10. A/T Does Not Shift: D

2

-> D

3

. . . . . . . .242

11. A/T Does Not Shift: D

3

-> D

4

. . . . . . . .245

12. A/T Does Not Perform Lock-up . . . . . . .248
13. A/T Does Not Hold Lock-up Condition . . . ..250
14. Lock-up Is Not Released. . . . . . . . ...252
15. Engine Speed Does Not Return To Idle (Light
Braking D

4

-> D

3

). . . . . . . . . . . . . .253

16. Vehicle Does Not Start From D

1

. . . . . ...256

17. A/T Does Not Shift: D

4

-> D

3

, When

Overdrive Control Switch ON -> OFF . . . . . .257
18. A/T Does Not Shift: D

3

-> 2

2

, When Selector

Lever D -> 2 Position . . . . . . . . . . . ..258
19. A/T Does Not Shift: 2

2

-> 1

1

, When Selector

Lever 2 -> 1 Position . . . . . . . . . . . ...259
20. Vehicle Does Not Decelerate By Engine
Brake. . . . . . . . . . . . . . . . . . 260
21. TCM Self-diagnosis Does Not Activate (PNP,
Overdrive Control and Throttle Position Switches
Circuit Checks) . . . . . . . . . . . . . . 260

A/T SHIFT LOCK SYSTEM. . . . . . . . . . .270

Description . . . . . . . . . . . . . . . ...270
Wiring Diagram - SHIFT -. . . . . . . . . . 271
Shift Lock System Electrical Parts Location. . . 272
Diagnostic Procedure . . . . . . . . . . . ..272
Key Interlock Cable . . . . . . . . . . . . .276

SHIFT CONTROL SYSTEM . . . . . . . . . . 278

Control Device . . . . . . . . . . . . . . .278
Control Cable. . . . . . . . . . . . . . ...279

ON-VEHICLE SERVICE . . . . . . . . . . . ..280

Control Valve Assembly and Accumulators. . . .280
Revolution Sensor Replacement . . . . . . . .281
Park/Neutral Position (PNP) Switch Adjustment . .281
Control Cable Adjustment. . . . . . . . . . 282
Differential Side Oil Seal Replacement . . . . ...282

REMOVAL AND INSTALLATION . . . . . . . ...283

Removal. . . . . . . . . . . . . . . . ...283
Installation. . . . . . . . . . . . . . . . 284

OVERHAUL . . . . . . . . . . . . . . . . .286

Components. . . . . . . . . . . . . . . .286
Oil Channel . . . . . . . . . . . . . . . ..289
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings . . . . . . . 290

DISASSEMBLY. . . . . . . . . . . . . . . 291
REPAIR FOR COMPONENT PARTS . . . . . . .305

Manual Shaft. . . . . . . . . . . . . . . 305
Oil Pump . . . . . . . . . . . . . . . . ..308
Control Valve Assembly. . . . . . . . . . ...312
Control Valve Upper Body . . . . . . . . . ...320
Control Valve Lower Body . . . . . . . . . ...324
Reverse Clutch . . . . . . . . . . . . . . 326
High Clutch . . . . . . . . . . . . . . . ..329
Forward and Overrun Clutches . . . . . . . ...334
Low & Reverse Brake. . . . . . . . . . . ..339
Rear Internal Gear, Forward Clutch Hub and
Overrun Clutch Hub. . . . . . . . . . . . .342
Output Shaft, Idler Gear, Reduction Pinion Gear
and Bearing Retainer. . . . . . . . . . . ...346
Band Servo Piston Assembly . . . . . . . . ..351
Final Drive. . . . . . . . . . . . . . . . 356

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

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CONTENTS

(Cont’d)

AT-3

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

SERVICE DATA AND SPECIFICATIONS (SDS) . ...382

General Specifications. . . . . . . . . . . .382
Shift Schedule. . . . . . . . . . . . . . ..382
Stall Revolution. . . . . . . . . . . . . . 382
Line Pressure. . . . . . . . . . . . . . ...382
Control Valves. . . . . . . . . . . . . . ..383
Accumulator . . . . . . . . . . . . . . . .383
Clutch and Brakes . . . . . . . . . . . . ...384
Final Drive. . . . . . . . . . . . . . . . 386

Planetary Carrier and Oil Pump . . . . . . . ..388
Input Shaft . . . . . . . . . . . . . . . ...388
Reduction Pinion Gear . . . . . . . . . . . 388
Band Servo . . . . . . . . . . . . . . . ..389
Output Shaft. . . . . . . . . . . . . . . .389
Bearing Retainer. . . . . . . . . . . . . ..390
Total End Play. . . . . . . . . . . . . . ..390
Reverse Clutch End Play . . . . . . . . . . 390
Removal and Installation . . . . . . . . . . .391
Shift Solenoid Valves. . . . . . . . . . . ...391
Solenoid Valves . . . . . . . . . . . . . ...391
A/T Fluid Temperature Sensor. . . . . . . . .391
Revolution Sensor . . . . . . . . . . . . ...391
Dropping Resistor . . . . . . . . . . . . . 391

CONTENTS

(Cont’d)

AT-4