Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti I30 A32 A33 1996-2001 Approved Infiniti I30 2001 at
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AUTOMATIC TRANSAXLE
GI
SECTION AT MA
EM
LC
EC
CONTENTS
FE
TROUBLE DIAGNOSIS - INDEX ....................................5 TROUBLE DIAGNOSIS - GENERAL
Alphabetical & P No. Index for DTC ...........................5 DESCRIPTION ...............................................................84
PRECAUTIONS ...............................................................7 Symptom Chart..........................................................84
Supplemental Restraint System (SRS) AIR TCM Terminals and Reference Value........................94
BAG and SEAT BELT PRE-TENSIONER...............7 TROUBLE DIAGNOSIS FOR POWER SUPPLY..........99 AX
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN......................................99
System of A/T and Engine...........................................7 Diagnostic Procedure ..............................................100
SU
Precautions ..................................................................7 DTC P0705 PARK/NEUTRAL POSITION SWITCH ...102
Service Notice or Precautions .....................................9 Description ...............................................................102
Wiring Diagrams and Trouble Diagnosis...................10 On Board Diagnosis Logic.......................................102 BR
PREPARATION .............................................................11 Possible Cause........................................................103
Special Service Tools ................................................11 Diagnostic Trouble Code (DTC) Confirmation
Commercial Service Tools .........................................14 Procedure ................................................................103 ST
OVERALL SYSTEM ......................................................15 Wiring Diagram - AT - PNP/SW...............................104
A/T Electrical Parts Location .....................................15 Diagnostic Procedure ..............................................105
Circuit Diagram ..........................................................16 DTC P0710 A/T FLUID TEMPERATURE SENSOR
RS
Cross-sectional View .................................................17 CIRCUIT .......................................................................108
Hydraulic Control Circuit............................................18 Description ...............................................................108 BT
Shift Mechanism ........................................................19 On Board Diagnosis Logic.......................................108
Control System ..........................................................28 Possible Cause........................................................109
Control Mechanism....................................................30 Diagnostic Trouble Code (DTC) Confirmation HA
Control Valve .............................................................34 Procedure ................................................................109
ON BOARD DIAGNOSTIC SYSTEM Wiring Diagram - AT - FTS ......................................110
DESCRIPTION ...............................................................36 Diagnostic Procedure .............................................. 111 SC
Introduction ................................................................36 DTC P0720 VEHICLE SPEED SENSOR.A/T
OBD-II Function for A/T System................................36 (REVOLUTION SENSOR) ...........................................114 EL
One or Two Trip Detection Logic of OBD-II ..............36 Description ...............................................................114
OBD-II Diagnostic Trouble Code (DTC) ....................36 On Board Diagnosis Logic.......................................114
Malfunction Indicator Lamp (MIL)..............................40 Possible Cause........................................................114 IDX
CONSULT-II ...............................................................40 Diagnostic Trouble Code (DTC) Confirmation
Diagnostic Procedure Without CONSULT-II..............49 Procedure ................................................................115
TROUBLE DIAGNOSIS - INTRODUCTION..................55 Wiring Diagram - AT - VSSA/T ................................116
Introduction ................................................................55 Diagnostic Procedure ..............................................117
Work Flow..................................................................59 DTC P0725 ENGINE SPEED SIGNAL .......................119
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........61 Description ...............................................................119
A/T Fluid Check .........................................................61 On Board Diagnosis Logic.......................................119
Stall Test ....................................................................61 Possible Cause........................................................119
Line Pressure Test.....................................................65 Diagnostic Trouble Code (DTC) Confirmation
Road Test...................................................................66 Procedure ................................................................120
CONTENTS (Cont'd)
Wiring Diagram - AT - ENGSS ................................121 Description ...............................................................166
Diagnostic Procedure ..............................................122 On Board Diagnosis Logic.......................................166
DTC P0731 A/T 1ST GEAR FUNCTION ....................124 Possible Cause........................................................167
Description ...............................................................124 Diagnostic Trouble Code (DTC) Confirmation
On Board Diagnosis Logic.......................................124 Procedure ................................................................167
Possible Cause........................................................125 Wiring Diagram - AT - LPSV....................................168
Diagnostic Trouble Code (DTC) Confirmation Diagnostic Procedure ..............................................169
Procedure ................................................................125 DTC P0750 SHIFT SOLENOID VALVE A ..................172
Wiring Diagram - AT - 1ST ......................................127 Description ...............................................................172
Diagnostic Procedure ..............................................128 On Board Diagnosis Logic.......................................172
DTC P0732 A/T 2ND GEAR FUNCTION....................130 Possible Cause........................................................172
Description ...............................................................130 Diagnostic Trouble Code (DTC) Confirmation
On Board Diagnosis Logic.......................................130 Procedure ................................................................173
Possible Cause........................................................131 Wiring Diagram - AT - SSV/A ..................................174
Diagnostic Trouble Code (DTC) Confirmation Diagnostic Procedure ..............................................175
Procedure ................................................................131 DTC P0755 SHIFT SOLENOID VALVE B ..................177
Wiring Diagram - AT - 2ND......................................133 Description ...............................................................177
Diagnostic Procedure ..............................................134 On Board Diagnosis Logic.......................................177
DTC P0733 A/T 3RD GEAR FUNCTION....................136 Possible Cause........................................................177
Description ...............................................................136 Diagnostic Trouble Code (DTC) Confirmation
On Board Diagnosis Logic.......................................136 Procedure ................................................................178
Possible Cause........................................................137 Wiring Diagram - AT - SSV/B ..................................179
Diagnostic Trouble Code (DTC) Confirmation Diagnostic Procedure ..............................................180
Procedure ................................................................137 DTC P1705 THROTTLE POSITION SENSOR ...........182
Wiring Diagram - AT - 3RD......................................139 Description ...............................................................182
Diagnostic Procedure ..............................................140 On Board Diagnosis Logic.......................................183
DTC P0734 A/T 4TH GEAR FUNCTION ....................142 Possible Cause........................................................183
Description ...............................................................142 Diagnostic Trouble Code (DTC) Confirmation
On Board Diagnosis Logic.......................................143 Procedure ................................................................184
Possible Cause........................................................143 Wiring Diagram - AT - TPS......................................185
Diagnostic Trouble Code (DTC) Confirmation Diagnostic Procedure ..............................................186
Procedure ................................................................144 DTC P1760 OVERRUN CLUTCH SOLENOID
Wiring Diagram - AT - 4TH ......................................146 VALVE..........................................................................191
Diagnostic Procedure ..............................................147 Description ...............................................................191
DTC P0740 TORQUE CONVERTER CLUTCH On Board Diagnosis Logic.......................................191
SOLENOID VALVE......................................................151 Possible Cause........................................................191
Description ...............................................................151 Diagnostic Trouble Code (DTC) Confirmation
On Board Diagnosis Logic.......................................151 Procedure ................................................................192
Possible Cause........................................................151 Wiring Diagram - AT - OVRCSV..............................193
Diagnostic Trouble Code (DTC) Confirmation Diagnostic Procedure ..............................................194
Procedure ................................................................152 DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
Wiring Diagram - AT - TCV......................................153 SENSOR CIRCUIT AND TCM POWER SOURCE) ....196
Diagnostic Procedure ..............................................154 Description ...............................................................196
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) ....156 On Board Diagnosis Logic.......................................197
Description ...............................................................156 Possible Cause........................................................197
On Board Diagnosis Logic.......................................156 Diagnostic Trouble Code (DTC) Confirmation
Possible Cause........................................................157 Procedure ................................................................197
Diagnostic Trouble Code (DTC) Confirmation Wiring Diagram - AT - BA/FTS ................................198
Procedure ................................................................157 Diagnostic Procedure ..............................................199
Wiring Diagram - AT - TCCSIG ...............................159 DTC VEHICLE SPEED SENSOR.MTR .......................203
Diagnostic Procedure ..............................................160 Description ...............................................................203
DTC P0745 LINE PRESSURE SOLENOID VALVE ...166 On Board Diagnosis Logic.......................................203
AT-2
CONTENTS (Cont'd)
Possible Cause........................................................203 17. A/T Does Not Shift: D4 -> D3, When
Diagnostic Trouble Code (DTC) Confirmation Overdrive Control Switch ON -> OFF .....................257
Procedure ................................................................204 18. A/T Does Not Shift: D3 -> 22, When Selector GI
Wiring Diagram - AT - VSSMTR..............................205 Lever D -> 2 Position ..............................................258
Diagnostic Procedure ..............................................206 19. A/T Does Not Shift: 22 -> 11, When Selector MA
DTC A/T COMM LINE .................................................208 Lever 2 -> 1 Position ...............................................259
Description ...............................................................208 20. Vehicle Does Not Decelerate By Engine
On Board Diagnosis Logic.......................................208 Brake........................................................................260 EM
Possible Cause........................................................208 21. TCM Self-diagnosis Does Not Activate (PNP,
Diagnostic Trouble Code (DTC) Confirmation Overdrive Control and Throttle Position Switches
Procedure ................................................................209 Circuit Checks) ........................................................260 LC
Wiring Diagram - AT - LAN......................................210 A/T SHIFT LOCK SYSTEM.........................................270
Diagnostic Procedure ..............................................211 Description ...............................................................270
EC
DTC CONTROL UNIT (RAM), CONTROL UNIT Wiring Diagram - SHIFT -........................................271
(ROM)...........................................................................212 Shift Lock System Electrical Parts Location............272
Description ...............................................................212 Diagnostic Procedure ..............................................272 FE
On Board Diagnosis Logic.......................................212 Key Interlock Cable .................................................276
Possible Cause........................................................212 SHIFT CONTROL SYSTEM ........................................278
Diagnostic Trouble Code (DTC) Confirmation Control Device .........................................................278
Procedure ................................................................212 Control Cable...........................................................279
Diagnostic Procedure ..............................................213 ON-VEHICLE SERVICE ..............................................280
DTC CONTROL UNIT (EEP ROM) .............................214 Control Valve Assembly and Accumulators.............280
AX
Description ...............................................................214 Revolution Sensor Replacement .............................281
On Board Diagnosis Logic.......................................214 Park/Neutral Position (PNP) Switch Adjustment .....281 SU
Possible Cause........................................................214 Control Cable Adjustment........................................282
Diagnostic Trouble Code (DTC) Confirmation Differential Side Oil Seal Replacement ...................282
Procedure ................................................................214 REMOVAL AND INSTALLATION ...............................283 BR
Diagnostic Procedure ..............................................215 Removal...................................................................283
TROUBLE DIAGNOSES FOR SYMPTOMS ...............216 Installation................................................................284
Wiring Diagram - AT - NONDTC .............................216 OVERHAUL .................................................................286 ST
1. O/D OFF Indicator Lamp Does Not Come On....219 Components.............................................................286
2. Engine Cannot Be Started In P and N Position..222 Oil Channel ..............................................................289
RS
3. In P Position, Vehicle Moves Forward or Locations of Adjusting Shims, Needle Bearings,
Backward When Pushed .........................................223 Thrust Washers and Snap Rings ............................290
4. In N Position, Vehicle Moves ..............................224 DISASSEMBLY............................................................291 BT
5. Large Shock. N -> R Position .............................227 REPAIR FOR COMPONENT PARTS .........................305
6. Vehicle Does Not Creep Backward In R Manual Shaft............................................................305
Position ....................................................................229 Oil Pump ..................................................................308 HA
7. Vehicle Does Not Creep Forward in D, 2 or 1 Control Valve Assembly...........................................312
Position ....................................................................233 Control Valve Upper Body .......................................320
8. Vehicle Cannot Be Started From D1 ...................236 Control Valve Lower Body .......................................324
SC
9. A/T Does Not Shift: D1 -> D2 or Does Not Reverse Clutch ........................................................326
Kickdown: D4 -> D2..................................................239 High Clutch ..............................................................329 EL
10. A/T Does Not Shift: D2 -> D3.............................242 Forward and Overrun Clutches ...............................334
11. A/T Does Not Shift: D3 -> D4 .............................245 Low & Reverse Brake..............................................339
12. A/T Does Not Perform Lock-up .........................248 Rear Internal Gear, Forward Clutch Hub and IDX
13. A/T Does Not Hold Lock-up Condition ..............250 Overrun Clutch Hub.................................................342
14. Lock-up Is Not Released...................................252 Output Shaft, Idler Gear, Reduction Pinion Gear
15. Engine Speed Does Not Return To Idle (Light and Bearing Retainer...............................................346
Braking D4 -> D3).....................................................253 Band Servo Piston Assembly ..................................351
16. Vehicle Does Not Start From D1 .......................256 Final Drive................................................................356
ASSEMBLY..................................................................362
AT-3
CONTENTS (Cont'd)
Assembly (1)............................................................362 Planetary Carrier and Oil Pump ..............................388
Adjustment (1) .........................................................362 Input Shaft ...............................................................388
Assembly (2)............................................................367 Reduction Pinion Gear ............................................388
Adjustment (2) .........................................................373 Band Servo ..............................................................389
Assembly (3)............................................................375 Output Shaft.............................................................389
SERVICE DATA AND SPECIFICATIONS (SDS) .......382 Bearing Retainer......................................................390
General Specifications.............................................382 Total End Play..........................................................390
Shift Schedule..........................................................382 Reverse Clutch End Play ........................................390
Stall Revolution........................................................382 Removal and Installation .........................................391
Line Pressure...........................................................382 Shift Solenoid Valves...............................................391
Control Valves..........................................................383 Solenoid Valves .......................................................391
Accumulator .............................................................383 A/T Fluid Temperature Sensor.................................391
Clutch and Brakes ...................................................384 Revolution Sensor ...................................................391
Final Drive................................................................386 Dropping Resistor ....................................................391
AT-4
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NHAT0001
ALPHABETICAL INDEX FOR DTC NHAT0001S01
DTC
Items GI
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
A/T 1ST GR FNCTN P0731 AT-124
MA
A/T 2ND GR FNCTN P0732 AT-130
EM
A/T 3RD GR FNCTN P0733 AT-136
A/T 4TH GR FNCTN P0734 AT-142
LC
A/T TCC S/V FNCTN P0744 AT-156
ATF TEMP SEN/CIRC P0710 AT-108
EC
ENGINE SPEED SIG P0725 AT-119
L/PRESS SOL/CIRC P0745 AT-166
FE
O/R CLTCH SOL/CIRC P1760 AT-191
PNP SW/CIRC P0705 AT-102
SFT SOL A/CIRC*2 P0750 AT-172
SFT SOL B/CIRC*2 P0755 AT-177 AX
TCC SOLENOID/CIRC P0740 AT-151
TP SEN/CIRC A/T*2 P1705 AT-182 SU
VEH SPD SEN/CIR AT*3 P0720 AT-114
*1: These numbers are prescribed by SAE J2012. BR
*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. ST
RS
BT
HA
SC
EL
IDX
AT-5
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NHAT0001S02
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
P0705 PNP SW/CIRC AT-102
P0710 ATF TEMP SEN/CIRC AT-108
P0720 VEH SPD SEN/CIR AT*3 AT-114
P0725 ENGINE SPEED SIG AT-119
P0731 A/T 1ST GR FNCTN AT-124
P0732 A/T 2ND GR FNCTN AT-130
P0733 A/T 3RD GR FNCTN AT-136
P0734 A/T 4TH GR FNCTN AT-142
P0740 TCC SOLENOID/CIRC AT-151
P0744 A/T TCC S/V FNCTN AT-156
P0745 L/PRESS SOL/CIRC AT-166
P0750 SFT SOL A/CIRC*2 AT-172
P0755 SFT SOL B/CIRC*2 AT-177
P1705 TP SEN/CIRC A/T*2 AT-182
P1760 O/R CLTCH SOL/CIRC AT-191
*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.
AT-6
PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER" NHAT0002
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of GI
collision. The SRS system composition which is available to INFINITI I30 is as follows:
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