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                                                                                      AUTOMATIC TRANSMISSION                                                                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 ...............................................................84
PRECAUTIONS ...............................................................6             Symptom Chart..........................................................84          MT
  Supplemental Restraint System (SRS) AIR                                                TCM Terminals and Reference Value........................97
  BAG and SEAT BELT PRE-TENSIONER...............6                                      TROUBLE DIAGNOSIS FOR POWER SUPPLY........101
  Precautions for On Board Diagnostic (OBD)                                              Wiring Diagram - AT - MAIN....................................101
  System of A/T and Engine...........................................6                   Diagnostic Procedure ..............................................102
  Precautions ..................................................................6      DTC P0705 PARK/NEUTRAL POSITION (PNP)
  Service Notice or Precautions .....................................8                 SWITCH .......................................................................104
                                                                                                                                                                            TF
  Wiring Diagrams and Trouble Diagnosis.....................9                            Description ...............................................................104
PREPARATION .............................................................10              Wiring Diagram - AT - PNP/SW...............................106                     PD
  Special Service Tools ................................................10               Diagnostic Procedure ..............................................107
OVERALL SYSTEM ......................................................12                  Component Inspection.............................................109
  A/T Electrical Parts Location .....................................12                DTC P0710 A/T FLUID TEMPERATURE SENSOR                                               AX
  Circuit Diagram ..........................................................13         CIRCUIT .......................................................................110
  Cross-sectional View .................................................14               Description ...............................................................110
  Hydraulic Control Circuit............................................15                Wiring Diagram - AT - FTS ......................................112                SU
  Shift Mechanism ........................................................16             Diagnostic Procedure ..............................................113
  Control System ..........................................................25            Component Inspection.............................................115
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  Control Mechanism....................................................26              DTC P0720 VEHICLE SPEED SENSOR.A/T
  Control Valve .............................................................31        (REVOLUTION SENSOR) ...........................................116
ON BOARD DIAGNOSTIC SYSTEM                                                               Description ...............................................................116     ST
DESCRIPTION ...............................................................33            Wiring Diagram - AT - VSSA/T ................................118
  Introduction ................................................................33        Diagnostic Procedure ..............................................119
  OBD-II Function for A/T System................................33                       Component Inspection.............................................120               RS
  One or Two Trip Detection Logic of OBD-II ..............33                           DTC P0725 ENGINE SPEED SIGNAL .......................121
  OBD-II Diagnostic Trouble Code (DTC) ....................33                            Description ...............................................................121
  Malfunction Indicator Lamp (MIL)..............................37                       Wiring Diagram - AT - ENGSS ................................122
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  CONSULT-II ...............................................................37           Diagnostic Procedure ..............................................123
  Diagnostic Procedure Without CONSULT-II..............46                              DTC P0731 IMPROPER SHIFTING TO 1ST GEAR                                              HA
TROUBLE DIAGNOSIS - INTRODUCTION..................55                                   POSITION ....................................................................125
  Introduction ................................................................55        Description ...............................................................125
  Work Flow..................................................................59          Wiring Diagram - AT - 1ST ......................................128                SC
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........62                                       Diagnostic Procedure ..............................................129
  A/T Fluid Check .........................................................62            Component Inspection.............................................130
  Stall Test ....................................................................62    DTC P0732 IMPROPER SHIFTING TO 2ND GEAR                                              EL
  Line Pressure Test.....................................................65            POSITION ....................................................................131
  Road Test...................................................................66         Description ...............................................................131     IDX
                                                                                         Wiring Diagram - AT - 2ND......................................134
                                                     CONTENTS                                  (Cont'd)
  Diagnostic Procedure ..............................................135             DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP
  Component Inspection.............................................135               SENSOR CIRCUIT AND TCM POWER SOURCE) ....193
DTC P0733 IMPROPER SHIFTING TO 3RD GEAR                                                Description ...............................................................193
POSITION ....................................................................137       Wiring Diagram - AT - BA/FTS ................................195
  Description ...............................................................137       Diagnostic Procedure ..............................................196
  Wiring Diagram - AT - 3RD......................................140                   Component Inspection.............................................198
  Diagnostic Procedure ..............................................141             DTC VEHICLE SPEED SENSOR.MTR .......................199
  Component Inspection.............................................142                 Description ...............................................................199
DTC P0734 IMPROPER SHIFTING TO 4TH GEAR                                                Wiring Diagram - AT - VSSMTR..............................201
POSITION ....................................................................143       Diagnostic Procedure ..............................................202
  Description ...............................................................143     DTC TURBINE REVOLUTION SENSOR (VG33ER
  Wiring Diagram - AT - 4TH ......................................147                ONLY) ..........................................................................203
  Diagnostic Procedure ..............................................148               Description ...............................................................203
  Component Inspection.............................................151                 Wiring Diagram - AT - TRSA/T ................................205
DTC P0740 TORQUE CONVERTER CLUTCH                                                      Diagnostic Procedure ..............................................206
SOLENOID VALVE......................................................152                Component Inspection.............................................207
  Description ...............................................................152     DTC CONTROL UNIT (RAM), CONTROL UNIT
  Wiring Diagram - AT - TCV......................................154                 (ROM)...........................................................................208
  Diagnostic Procedure ..............................................155               Description ...............................................................208
  Component Inspection.............................................156                 Diagnostic Procedure ..............................................209
DTC P0744 IMPROPER LOCK-UP OPERATION ......157                                       DTC CONTROL UNIT (EEP ROM) .............................210
  Description ...............................................................157       Description ...............................................................210
  Wiring Diagram - AT - TCCSIG ...............................159                      Diagnostic Procedure ..............................................211
  Diagnostic Procedure ..............................................160             TROUBLE DIAGNOSES FOR SYMPTOMS ...............212
  Component Inspection.............................................163                 Wiring Diagram - AT - NONDTC .............................212
DTC P0745 LINE PRESSURE SOLENOID VALVE ...164                                          1. O/D OFF Indicator Lamp Does Not Come On....215
  Description ...............................................................164       2. Engine Cannot Be Started In P and N Position..217
  Wiring Diagram - AT - LPSV....................................166                    3. In P Position, Vehicle Moves Forward Or
  Diagnostic Procedure ..............................................167               Backward When Pushed .........................................218
  Component Inspection.............................................168                 4. In N Position, Vehicle Moves ..............................219
DTC P0750 SHIFT SOLENOID VALVE A ..................169                                 5. Large Shock. N -> R Position .............................221
  Description ...............................................................169       6. Vehicle Does Not Creep Backward In R
  Wiring Diagram - AT - SSV/A ..................................171                    Position ....................................................................223
  Diagnostic Procedure ..............................................172               7. Vehicle Does Not Creep Forward In D, 2 Or 1
  Component Inspection.............................................173                 Position ....................................................................226
DTC P0755 SHIFT SOLENOID VALVE B ..................174                                 8. Vehicle Cannot Be Started From D1 ...................229
  Description ...............................................................174       9. A/T Does Not Shift: D1 -> D2 Or Does Not
  Wiring Diagram - AT - SSV/B ..................................176                    Kickdown: D4 -> D2..................................................232
  Diagnostic Procedure ..............................................177               10. A/T Does Not Shift: D2 -> D3.............................235
  Component Inspection.............................................178                 11. A/T Does Not Shift: D3 -> D4 .............................238
DTC P1705 THROTTLE POSITION SENSOR ...........179                                      12. A/T Does Not Perform Lock-up .........................241
  Description ...............................................................179       13. A/T Does Not Hold Lock-up Condition ..............243
  Wiring Diagram - AT - TPS......................................182                   14. Lock-up Is Not Released...................................245
  Diagnostic Procedure ..............................................183               15. Engine Speed Does Not Return To Idle (Light
  Component Inspection.............................................187                 Braking D4 -> D3).....................................................246
DTC P1760 OVERRUN CLUTCH SOLENOID                                                      16. Vehicle Does Not Start From D1 .......................248
VALVE..........................................................................188     17. A/T Does Not Shift: D4 -> D3, When
  Description ...............................................................188       Overdrive Control Switch ON -> OFF .....................249
  Wiring Diagram - AT - OVRCSV..............................190                        18. A/T Does Not Shift: D3 -> 22, When Selector
  Diagnostic Procedure ..............................................191               Lever D -> 2 Position ..............................................250
  Component Inspection.............................................192                 19. A/T Does Not Shift: 22 -> 11, When Selector
                                                                                       Lever 2 -> 1 Position ...............................................251




                                                                                AT-2
                                                     CONTENTS                                  (Cont'd)
  20. Vehicle Does Not Decelerate By Engine                                            Control Valve Assembly...........................................293            GI
  Brake........................................................................252     Control Valve Upper Body .......................................299
  21. TCM Self-diagnosis Does Not Activate (PNP,                                       Control Valve Lower Body .......................................304
  Overdrive Control and Throttle Position Switches                                     Reverse Clutch ........................................................306      MA
  Circuit Checks) ........................................................252          High Clutch ..............................................................310
A/T SHIFT LOCK SYSTEM.........................................260                      Forward and Overrun Clutches ...............................312
  Description ...............................................................260       Low & Reverse Brake..............................................316
                                                                                                                                                                       EM
  Wiring Diagram - SHIFT -........................................261                  Forward Clutch Drum Assembly..............................320
  Diagnostic Procedure ..............................................262               Rear Internal Gear and Forward Clutch Hub ..........322                         LC
  Component Check ...................................................264               Band Servo Piston Assembly ..................................325
KEY INTERLOCK CABLE ..........................................265                      Parking Pawl Components ......................................329
  Components.............................................................265         ASSEMBLY..................................................................331     EC
  Removal...................................................................265        Assembly (1)............................................................331
  Installation................................................................266      Adjustment ...............................................................339
ON-VEHICLE SERVICE ..............................................267                   Assembly (2)............................................................341     FE
  Control Valve Assembly and Accumulators.............267                            SERVICE DATA AND SPECIFICATIONS (SDS) .......348
  Revolution Sensor Replacement .............................268                       General Specifications.............................................348          CL
  Turbine Revolution Sensor Replacement                                                Shift Schedule..........................................................348
  (VG33ER only).........................................................268            Stall Revolution........................................................348
  Rear Oil Seal Replacement.....................................268                    Line Pressure...........................................................349     MT
  Parking Components Inspection..............................269                       Return Springs.........................................................349
  Park/Neutral Position (PNP) Switch Adjustment .....270                               Accumulator O-ring..................................................350
  Manual Control Linkage Adjustment........................270                         Clutches and Brakes ...............................................350
REMOVAL AND INSTALLATION ...............................271                            Oil Pump and Low One-way Clutch ........................353
  Removal...................................................................271        Total End Play..........................................................353
                                                                                                                                                                       TF
  Installation................................................................272      Reverse Clutch Drum End Play ..............................353
OVERHAUL .................................................................274          Removal and Installation .........................................353
  Components.............................................................274           Shift Solenoid Valves...............................................353         PD
  Oil Channel ..............................................................276        Solenoid Valves .......................................................353
  Locations of Needle Bearings, Thrust Washers                                         A/T Fluid Temperature Sensor.................................354
  and Snap Rings .......................................................277            Turbine Revolution Sensor ......................................354             AX
DISASSEMBLY............................................................278             Revolution Sensor ...................................................354
REPAIR FOR COMPONENT PARTS .........................289                                Dropping Resistor ....................................................354
  Oil Pump ..................................................................289
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                                                                                AT-3
                                       TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC

                                                    Alphabetical & P No. Index for DTC                                         NGAT0179
ALPHABETICAL INDEX FOR DTC                                                                                                   NGAT0179S01


                                                                                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-131

 A/T 3RD GR FNCTN                                                              P0733                            AT-137

 A/T 4TH GR FNCTN                                                              P0734                            AT-143

 A/T TCC S/V FNCTN                                                             P0744                            AT-157

 ATF TEMP SEN/CIRC                                                             P0710                            AT-110

 ENGINE SPEED SIG                                                              P0725                            AT-121

 L/PRESS SOL/CIRC                                                              P0745                            AT-164

 O/R CLTCH SOL/CIRC                                                            P1760                            AT-188

 PNP SW/CIRC                                                                   P0705                            AT-104

 SFT SOL A/CIRC*2                                                              P0750                            AT-169

 SFT SOL B/CIRC*2                                                              P0755                            AT-174

 TCC SOLENOID/CIRC                                                             P0740                            AT-152

 TP SEN/CIRC A/T*2                                                             P1705                            AT-179

 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
                                       TROUBLE DIAGNOSIS -- INDEX
                                                                                      Alphabetical & P No. Index for DTC (Cont'd)

P NO. INDEX FOR DTC                                                                                                         =NGAT0179S02


               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-131                     EC
              P0733                A/T 3RD GR FNCTN                                                             AT-137

              P0734                A/T 4TH GR FNCTN                                                             AT-143                     FE
              P0740                TCC SOLENOID/CIRC                                                            AT-152

              P0744                A/T TCC S/V FNCTN                                                            AT-157                     CL
              P0745                L/PRESS SOL/CIRC                                                             AT-164

              P0750                SFT SOL A/CIRC*2                                                             AT-169                     MT
              P0755                SFT SOL B/CIRC*2                                                             AT-174

              P1705                TP SEN/CIRC A/T*2                                                            AT-179

              P1760                O/R CLTCH SOL/CIRC                                                           AT-188

*1: These numbers are prescribed by SAE J2012.
                                                                                                                                           TF
*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.                                                                                                                             PD

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                                                               AT-5
                                             PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

                                            Supplemental Restraint System (SRS) "AIR
                                            BAG" and "SEAT BELT PRE-TENSIONER"                              NGAT0001
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 Supplemental Restraint System consists of driver air bag module (located in the center of the
steering wheel), front passenger air bag module (located on the instrument panel on passenger side), seat
belt pre-tensioners, a diagnosis sensor unit, crash zone sensor, seat belt buckle switches, warning lamp, wir-
ing harness and spiral cable.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING:



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