Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G20 P11 1999-2002 Approved G20-P11-2000 at
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EXIT
AUTOMATIC TRANSAXLE GI
SECTION AT MA
EM
LC
EC
CONTENTS FE
TROUBLE DIAGNOSIS - INDEX ....................................4 TROUBLE DIAGNOSIS - GENERAL
CL
Alphabetical & P No. Index for DTC ...........................4 DESCRIPTION ...............................................................86
PRECAUTIONS ...............................................................6 Symptom Chart..........................................................86 MT
Supplemental Restraint System (SRS) AIR TCM Terminals and Reference Value........................97
BAG and SEAT BELT PRE-TENSIONER...............6 TROUBLE DIAGNOSIS FOR POWER SUPPLY........102
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN....................................102
System of A/T and Engine...........................................6 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Precautions ..................................................................6 SWITCH .......................................................................104
Service Notice or Precautions .....................................8 Description ...............................................................104
AX
Wiring Diagrams and Trouble Diagnosis.....................9 Wiring Diagram - AT - PNP/SW...............................106
PREPARATION .............................................................10 Diagnostic Procedure ..............................................107 SU
Special Service Tools ................................................10 Component Inspection.............................................109
Commercial Service Tools .........................................12 DTC P0710 A/T FLUID TEMPERATURE SENSOR
OVERALL SYSTEM ......................................................14 CIRCUIT .......................................................................110 BR
A/T Electrical Parts Location .....................................14 Description ...............................................................110
Circuit Diagram ..........................................................15 Wiring Diagram - AT - FTS ......................................112
Cross-sectional View - RE4F03B ..............................16 Diagnostic Procedure ..............................................113 ST
Cross-sectional View - RE4F03W .............................17 Component Inspection.............................................115
Hydraulic Control Circuit............................................18 DTC P0720 VEHICLE SPEED SENSOR.A/T
RS
Shift Mechanism ........................................................19 (REVOLUTION SENSOR) ...........................................116
Control System ..........................................................28 Description ...............................................................116
Control Mechanism....................................................29 Wiring Diagram - AT - VSSA/T ................................118 BT
Control Valve .............................................................34 Diagnostic Procedure ..............................................119
ON BOARD DIAGNOSTIC SYSTEM DTC P0725 ENGINE SPEED SIGNAL .......................121
DESCRIPTION ...............................................................36 Description ...............................................................121 HA
Introduction ................................................................36 Wiring Diagram - AT - ENGSS ................................122
OBD-II Function for A/T System................................36 Diagnostic Procedure ..............................................123
One or Two Trip Detection Logic of OBD-II ..............36 DTC P0731 A/T 1ST GEAR FUNCTION ....................125
SC
OBD-II Diagnostic Trouble Code (DTC) ....................36 Description ...............................................................125
Malfunction Indicator Lamp (MIL)..............................40 Wiring Diagram - AT - 1ST ......................................128 EL
CONSULT-II ...............................................................40 Diagnostic Procedure ..............................................129
TROUBLE DIAGNOSIS - INTRODUCTION..................56 Component Inspection.............................................130
Introduction ................................................................56 DTC P0732 A/T 2ND GEAR FUNCTION....................132 IDX
Work Flow..................................................................60 Description ...............................................................132
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........62 Wiring Diagram - AT - 2ND......................................135
A/T Fluid Check .........................................................62 Diagnostic Procedure ..............................................136
Stall Test ....................................................................62 Component Inspection.............................................137
Line Pressure Test.....................................................66 DTC P0733 A/T 3RD GEAR FUNCTION....................138
Road Test...................................................................67 Description ...............................................................138
EXIT
CONTENTS (Cont'd)
Wiring Diagram - AT - 3RD......................................141 DTC VHCL SPEED SEN.MTR VEHICLE SPEED
Diagnostic Procedure ..............................................142 SENSOR.MTR..............................................................212
Component Inspection.............................................143 Description ...............................................................212
DTC P0734 A/T 4TH GEAR FUNCTION ....................144 Wiring Diagram - AT - VSSMTR..............................214
Description ...............................................................144 Diagnostic Procedure ..............................................215
Wiring Diagram - AT - 4TH ......................................148 DTC CONTROL UNIT (RAM), CONTROL UNIT
Diagnostic Procedure ..............................................149 (ROM)...........................................................................216
Component Inspection.............................................153 Description ...............................................................216
DTC P0740 TORQUE CONVERTER CLUTCH Diagnostic Procedure ..............................................216
SOLENOID VALVE......................................................154 DTC CONTROL UNIT (EEP ROM) .............................218
Description ...............................................................154 Description ...............................................................218
Wiring Diagram - AT - TCV......................................156 Diagnostic Procedure ..............................................219
Diagnostic Procedure ..............................................157 TROUBLE DIAGNOSES FOR SYMPTOMS ...............220
Component Inspection.............................................159 Wiring Diagram - AT - NONDTC .............................220
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) ....160 1. O/D OFF Indicator Lamp Does Not Come On....222
Description ...............................................................160 2. Engine Cannot Be Started In P and N
Wiring Diagram - AT - TCCSIG ...............................163 Position ....................................................................225
Diagnostic Procedure ..............................................164 3. In P Position, Vehicle Moves Forward Or
Component Inspection.............................................170 Backward When Pushed .........................................226
DTC P0745 LINE PRESSURE SOLENOID VALVE ...171 4. In N Position, Vehicle Moves ...........................227
Description ...............................................................171 5. Large Shock. N -> R Position .......................229
Wiring Diagram - AT - LPSV....................................173 6. Vehicle Does Not Creep Backward In R
Diagnostic Procedure ..............................................174 Position ....................................................................231
Component Inspection.............................................177 7. Vehicle Does Not Creep Forward In D, 2
DTC P0750 SHIFT SOLENOID VALVE A ..................178 Or 1 Position.........................................................234
Description ...............................................................178 8. Vehicle Cannot Be Started From D1 ...................237
Wiring Diagram - AT - SSV/A ..................................180 9. A/T Does Not Shift: D1 -> D2 Or Does Not
Diagnostic Procedure ..............................................181 Kickdown: D4 -> D2..................................................240
Component Inspection.............................................183 10. A/T Does Not Shift: D2 -> D3.............................243
DTC P0755 SHIFT SOLENOID VALVE B ..................184 11. A/T Does Not Shift: D3 -> D4 .............................246
Description ...............................................................184 12. A/T Does Not Perform Lock-up .........................249
Wiring Diagram - AT - SSV/B ..................................186 13. A/T Does Not Hold Lock-up Condition ..............251
Diagnostic Procedure ..............................................187 14. Lock-up Is Not Released...................................253
Component Inspection.............................................189 15. Engine Speed Does Not Return To Idle (Light
DTC P1705 THROTTLE POSITION SENSOR ...........190 Braking D4 -> D3).....................................................254
Description ...............................................................190 16. Vehicle Does Not Start From D1 .......................256
Wiring Diagram - AT - TPS......................................193 17. A/T Does Not Shift: D4 -> D3, When
Diagnostic Procedure ..............................................194 Overdrive Control Switch ON -> OFF ...............257
Component Inspection.............................................198 18. A/T Does Not Shift: D3 -> 22, When Selector
DTC P1760 OVERRUN CLUTCH SOLENOID Lever D -> 2 Position.........................................258
VALVE..........................................................................199 19. A/T Does Not Shift: 22 -> 11, When Selector
Description ...............................................................199 Lever 2 -> 1 Position .........................................259
Wiring Diagram - AT - OVRCSV..............................201 20. Vehicle Does Not Decelerate By Engine
Diagnostic Procedure ..............................................202 Brake........................................................................260
Component Inspection.............................................204 21. TCM Self-diagnosis Does Not Activate (PNP,
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP Overdrive Control and Throttle Position Switches
SENSOR CIRCUIT AND TCM POWER SOURCE) ....205 Circuit Checks) ........................................................260
Description ...............................................................205 A/T SHIFT LOCK SYSTEM.........................................269
Wiring Diagram - AT - BA/FTS ................................207 Description ...............................................................269
Diagnostic Procedure ..............................................208 Shift Lock System Electrical Parts Location............269
Component Inspection.............................................211 Wiring Diagram - SHIFT -........................................270
Diagnostic Procedure ..............................................271
AT-2
EXIT
CONTENTS (Cont'd)
KEY INTERLOCK CABLE ..........................................275 Final Drive................................................................358 GI
Components.............................................................275 ASSEMBLY..................................................................365
Removal...................................................................275 Assembly (1)............................................................365
Installation................................................................276 Adjustment (1) .........................................................366 MA
ON-VEHICLE SERVICE ..............................................277 Assembly (2)............................................................371
Control Valve Assembly and Accumulators.............277 Adjustment (2) .........................................................375
Control Cable Adjustment........................................278 Assembly (3)............................................................379
EM
Park/Neutral Position (PNP) Switch Adjustment .....278 Assembly (4)............................................................381
Differential Side Oil Seal Replacement ...................279 SERVICE DATA AND SPECIFICATIONS (SDS) .......386 LC
Revolution Sensor Replacement .............................279 General Specifications.............................................386
REMOVAL AND INSTALLATION ...............................280 Shift Schedule..........................................................386
Removal...................................................................280 Stall Revolution........................................................386 EC
Installation................................................................281 Line Pressure...........................................................386
OVERHAUL .................................................................283 Control Valves..........................................................387
Components.............................................................283 Clutch and Brakes ...................................................387 FE
Oil Channel ..............................................................286 Clutch and Brake Return Springs............................389
Locations of Adjusting Shims, Needle Bearings, Oil Pump ..................................................................389 CL
Thrust Washers and Snap Rings ............................287 Input Shaft ...............................................................390
DISASSEMBLY............................................................288 Planetary Carrier......................................................390
REPAIR FOR COMPONENT PARTS .........................302 Final Drive................................................................390 MT
Manual Shaft............................................................302 Reduction Pinion Gear ............................................393
Oil Pump ..................................................................305 Output Shaft.............................................................395
Control Valve Assembly...........................................309 Bearing Retainer......................................................395
Control Valve Upper Body .......................................318 Total End Play..........................................................396
Control Valve Lower Body .......................................322 Reverse Clutch End Play ........................................396
AX
Reverse Clutch ........................................................324 Accumulator .............................................................396
High Clutch ..............................................................328 Band Servo ..............................................................396
Forward Clutch and Overrun Clutch........................333 Removal and Installation .........................................397 SU
Low & Reverse Brake..............................................340 Shift Solenoid Valves...............................................397
Rear Internal Gear, Forward Clutch Hub and Resistance ...............................................................397
Overrun Clutch Hub.................................................344 ATF Temp. Sensor ...................................................397 BR
Output Shaft, Idler Gear, Reduction Pinion Gear Revolution Sensor ...................................................397
and Bearing Retainer...............................................348 Dropping Resistor ....................................................397
Band Servo Piston Assembly ..................................353
ST
RS
BT
HA
SC
EL
IDX
AT-3
EXIT
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NCAT0001
ALPHABETICAL INDEX FOR DTC NCAT0001S01
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
A/T 1ST GR FNCTN P0731 AT-125
A/T 2ND GR FNCTN P0732 AT-132
A/T 3RD GR FNCTN P0733 AT-138
A/T 4TH GR FNCTN P0734 AT-144
A/T TCC S/V FNCTN P0744 AT-160
ATF TEMP SEN/CIRC P0710 AT-110
ENGINE SPEED SIG P0725 AT-121
L/PRESS SOL/CIRC P0745 AT-171
O/R CLTCH SOL/CIRC P1760 AT-199
PNP SW/CIRC P0705 AT-104
SFT SOL A/CIRC*2 P0750 AT-178
SFT SOL B/CIRC*2 P0755 AT-184
TCC SOLENOID/CIRC P0740 AT-154
TP SEN/CIRC A/T*2 P1705 AT-190
VEH SPD SEN/CIR AT*3 P0720 AT-116
*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-4
EXIT
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC (Cont'd)
P NO. INDEX FOR DTC =NCAT0001S02
DTC GI
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
MA
P0705 PNP SW/CIRC AT-104
P0710 ATF TEMP SEN/CIRC AT-110
EM
P0720 VEH SPD SEN/CIR AT*3 AT-116
P0725 ENGINE SPEED SIG AT-121
LC
P0731 A/T 1ST GR FNCTN AT-125
P0732 A/T 2ND GR FNCTN AT-132 EC
P0733 A/T 3RD GR FNCTN AT-138
P0734 A/T 4TH GR FNCTN AT-144 FE
P0740 TCC SOLENOID/CIRC AT-154
P0744 A/T TCC S/V FNCTN AT-160 CL
P0745 L/PRESS SOL/CIRC AT-171
P0750 SFT SOL A/CIRC*2 AT-178 MT
P0755 SFT SOL B/CIRC*2 AT-184
P1705 TP SEN/CIRC A/T*2 AT-190
P1760 O/R CLTCH SOL/CIRC AT-199
*1: These numbers are prescribed by SAE J2012.
AX
*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. SU
BR
ST
RS
BT
HA
SC
EL
IDX
AT-5
EXIT
PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER" NCAT0220
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
collision. The SRS system composition which is available to INFINITI G20 is as follows:
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