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
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                                                                               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

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                                                               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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