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AUTOMATIC TRANSMISSION GI
SECTION AT MA
EM
LC
EC
CONTENTS FE
RL4R01A Parking Components Inspection................................64
CL
Governor Valve ..........................................................64
PRECAUTIONS ...............................................................5
Throttle Wire Adjustment ...........................................64 MT
Supplemental Restraint System (SRS) AIR
Park/Neutral Position (PNP) Switch Adjustment .......65
BAG and SEAT BELT PRE-TENSIONER...............5
Control Cable Adjustment..........................................66
Precautions ..................................................................5
REMOVAL AND INSTALLATION .................................67
Service Notice or Precautions .....................................6
Removal.....................................................................67
Wiring Diagrams and Trouble Diagnosis.....................6
Installation..................................................................69
PREPARATION ...............................................................7
OVERHAUL ...................................................................71
TF
Special Service Tools ..................................................7
Components...............................................................71
OVERALL SYSTEM ........................................................9
Oil Channel ................................................................73 PD
Circuit Diagram ............................................................9
Locations of Needle Bearings, Thrust Washers
Wiring Diagram ..........................................................10
and Snap Rings .........................................................74
Cross-sectional View .................................................13
Hydraulic Control Circuits ..........................................14
DISASSEMBLY..............................................................75 AX
REPAIR FOR COMPONENT PARTS ...........................86
Shift Mechanism ........................................................15
Oil Pump ....................................................................86
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........27 SU
Control Valve Assembly.............................................90
A/T Fluid Check .........................................................27
Control Valve Upper Body .........................................95
Stall Test ....................................................................27
Control Valve Lower Body .........................................99
Line Pressure Test.....................................................30 BR
Governor Valve Assembly .......................................100
Road Test...................................................................32
Parking Gear............................................................101
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION ...............................................................34
Reverse Clutch ........................................................101 ST
High Clutch ..............................................................105
Symptom Chart..........................................................34
Forward and Overrun Clutches ...............................107
DTC P1775 TORQUE CONVERTER CLUTCH RS
Low & Reverse Brake.............................................. 111
SOLENOID VALVE (CIRCUIT)......................................43
Forward Clutch Drum Assembly..............................114
Diagnostic Procedure ................................................43
Rear Internal Gear and Forward Clutch Hub ..........116
TROUBLE DIAGNOSES................................................46
Band Servo Piston Assembly ..................................118
BT
Component Inspection...............................................46
Parking Pawl Components ......................................122
Electrical Component Inspection ...............................55
ASSEMBLY..................................................................124 HA
A/T SHIFT LOCK SYSTEM...........................................56
Assembly (1)............................................................124
Description .................................................................56
Adjustment ...............................................................132
Shift Lock System Electrical Parts Location..............56
Assembly (2)............................................................135 SC
Removal and Installation ...........................................56
SERVICE DATA AND SPECIFICATIONS (SDS) .......141
Wiring Diagram ..........................................................58
General Specifications.............................................141
Diagnostic Procedure ................................................59
Shift Schedule..........................................................141 EL
ON-VEHICLE SERVICE ................................................63
Stall Revolution........................................................141
Control Valve Assembly and Accumulators...............63
Line Pressure...........................................................141 IDX
Rear Oil Seal Replacement.......................................63
Governor Pressure ..................................................142
CONTENTS (Cont'd)
Return Springs.........................................................142 TROUBLE DIAGNOSIS FOR POWER SUPPLY........247
Accumulator O-ring..................................................143 Wiring Diagram - AT - MAIN....................................247
Clutch and Brakes ...................................................143 Diagnostic Procedure ..............................................248
Oil Pump and Low One-way Clutch ........................145 DTC P0705 PARK/NEUTRAL POSITION (PNP)
Total End Play..........................................................145 SWITCH .......................................................................250
Parking Gear............................................................145 Description ...............................................................250
Reverse Clutch Drum End Play ..............................146 Wiring Diagram - AT - PNP/SW...............................252
Removal and Installation .........................................146 Diagnostic Procedure ..............................................253
Component Inspection.............................................254
RE4R01A DTC P0710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT .......................................................................256
TROUBLE DIAGNOSIS - INDEX ................................147 Description ...............................................................256
Alphabetical & P No. Index for DTC .......................147 Wiring Diagram - AT - FTS ......................................258
PRECAUTIONS ...........................................................149 Diagnostic Procedure ..............................................259
Supplemental Restraint System (SRS) AIR Component Inspection.............................................261
BAG and SEAT BELT PRE-TENSIONER...........149 DTC P0720 VEHICLE SPEED SENSOR.A/T
Precautions for On Board Diagnostic (OBD) (REVOLUTION SENSOR) ...........................................262
System of A/T and Engine.......................................149 Description ...............................................................262
Precautions ..............................................................150 Wiring Diagram - AT - VSSA/T ................................264
Service Notice or Precautions .................................151 Diagnostic Procedure ..............................................265
Wiring Diagrams and Trouble Diagnosis.................152 Component Inspection.............................................266
PREPARATION ...........................................................153 DTC P0725 ENGINE SPEED SIGNAL .......................267
Special Service Tools ..............................................153 Description ...............................................................267
OVERALL SYSTEM ....................................................155 Wiring Diagram - AT - ENGSS ................................269
A/T Electrical Parts Location ...................................155 Diagnostic Procedure ..............................................270
Circuit Diagram ........................................................156 DTC P0731 IMPROPER SHIFTING TO 1ST GEAR
Cross-sectional View ...............................................157 POSITION ....................................................................272
Hydraulic Control Circuit..........................................158 Description ...............................................................272
Shift Mechanism ......................................................159 Wiring Diagram - AT - 1ST ......................................275
Control System ........................................................169 Diagnostic Procedure ..............................................276
Control Mechanism..................................................170 Component Inspection.............................................277
Control Valve ...........................................................175 DTC P0732 IMPROPER SHIFTING TO 2ND GEAR
ON BOARD DIAGNOSTIC SYSTEM POSITION ....................................................................278
DESCRIPTION .............................................................177 Description ...............................................................278
Introduction ..............................................................177 Wiring Diagram - AT - 2ND......................................281
OBD-II Function for A/T System..............................177 Diagnostic Procedure ..............................................282
One or Two Trip Detection Logic of OBD-II ............177 Component Inspection.............................................282
OBD-II Diagnostic Trouble Code (DTC) ..................177 DTC P0733 IMPROPER SHIFTING TO 3RD GEAR
Malfunction Indicator Lamp (MIL)............................181 POSITION ....................................................................284
CONSULT-II .............................................................181 Description ...............................................................284
Diagnostic Procedure Without CONSULT-II............190 Wiring Diagram - AT - 3RD......................................287
TROUBLE DIAGNOSIS - INTRODUCTION................199 Diagnostic Procedure ..............................................288
Introduction ..............................................................199 Component Inspection.............................................289
Work Flow................................................................203 DTC P0734 IMPROPER SHIFTING TO 4TH GEAR
TROUBLE DIAGNOSIS - BASIC INSPECTION .........206 POSITION ....................................................................290
A/T Fluid Check .......................................................206 Description ...............................................................290
Stall Test ..................................................................206 Wiring Diagram - AT - 4TH ......................................294
Line Pressure Test...................................................209 Diagnostic Procedure ..............................................295
Road Test.................................................................211 Component Inspection.............................................298
Symptom Chart........................................................229 DTC P0740 TORQUE CONVERTER CLUTCH
TROUBLE DIAGNOSIS - GENERAL SOLENOID VALVE......................................................299
DESCRIPTION .............................................................243 Description ...............................................................299
TCM Terminals and Reference Value......................243
AT-2
CONTENTS (Cont'd)
Wiring Diagram - AT - TCV......................................301 Description ...............................................................357 GI
Diagnostic Procedure ..............................................302 Diagnostic Procedure ..............................................358
Component Inspection.............................................303 DTC CONTROL UNIT (EEP ROM) .............................359
DTC P0744 IMPROPER LOCK-UP OPERATION ......304 Description ...............................................................359 MA
Description ...............................................................304 Diagnostic Procedure ..............................................360
Wiring Diagram - AT - TCCSIG ...............................307 TROUBLE DIAGNOSES FOR SYMPTOMS ...............361
Diagnostic Procedure ..............................................308 Wiring Diagram - AT - NONDTC .............................361
EM
Component Inspection.............................................312 1. O/D OFF Indicator Lamp Does Not Come On....364
DTC P0745 LINE PRESSURE SOLENOID VALVE ...313 2. Engine Cannot Be Started In P and N Position..366 LC
Description ...............................................................313 3. In P Position, Vehicle Moves Forward Or
Wiring Diagram - AT - LPSV....................................315 Backward When Pushed .........................................367
Diagnostic Procedure ..............................................316 4. In N Position, Vehicle Moves ..............................368 EC
Component Inspection.............................................317 5. Large Shock. N -> R Position .............................370
DTC P0750 SHIFT SOLENOID VALVE A ..................318 6. Vehicle Does Not Creep Backward In R
Description ...............................................................318 Position ....................................................................372 FE
Wiring Diagram - AT - SSV/A ..................................320 7. Vehicle Does Not Creep Forward In D, 2 Or 1
Diagnostic Procedure ..............................................321 Position ....................................................................375 CL
Component Inspection.............................................322 8. Vehicle Cannot Be Started From D1 ...................378
DTC P0755 SHIFT SOLENOID VALVE B ..................323 9. A/T Does Not Shift: D1 -> D2 Or Does Not
Description ...............................................................323 Kickdown: D4 -> D2..................................................381 MT
Wiring Diagram - AT - SSV/B ..................................325 10. A/T Does Not Shift: D2 -> D3.............................384
Diagnostic Procedure ..............................................326 11. A/T Does Not Shift: D3 -> D4 .............................387
Component Inspection.............................................327 12. A/T Does Not Perform Lock-up .........................390
DTC P1705 THROTTLE POSITION SENSOR ...........328 13. A/T Does Not Hold Lock-up Condition ..............392
Description ...............................................................328 14. Lock-up Is Not Released...................................394
TF
Wiring Diagram - AT - TPS......................................331 15. Engine Speed Does Not Return To Idle (Light
Diagnostic Procedure ..............................................332 Braking D4 -> D3).....................................................395
Component Inspection.............................................336 16. Vehicle Does Not Start From D1 .......................397 PD
DTC P1760 OVERRUN CLUTCH SOLENOID 17. A/T Does Not Shift: D4 -> D3, When
VALVE..........................................................................337 Overdrive Control Switch ON -> OFF .....................398
Description ...............................................................337 18. A/T Does Not Shift: D3 -> 22, When Selector AX
Wiring Diagram - AT - OVRCSV..............................339 Lever D -> 2 Position ..............................................399
Diagnostic Procedure ..............................................340 19. A/T Does Not Shift: 22 -> 11, When Selector
Component Inspection.............................................341 Lever 2 -> 1 Position ...............................................400
SU
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP 20. Vehicle Does Not Decelerate By Engine
SENSOR CIRCUIT AND TCM POWER SOURCE) ....342 Brake........................................................................401 BR
Description ...............................................................342 21. TCM Self-diagnosis Does Not Activate (PNP,
Wiring Diagram - AT - BA/FTS ................................344 Overdrive Control and Throttle Position Switches
Diagnostic Procedure ..............................................345 Circuit Checks) ........................................................401 ST
Component Inspection.............................................347 A/T SHIFT LOCK SYSTEM.........................................409
DTC VEHICLE SPEED SENSOR.MTR .......................348 Description ...............................................................409
Description ...............................................................348 Wiring Diagram - SHIFT -........................................410 RS
Wiring Diagram - AT - VSSMTR..............................350 Diagnostic Procedure ..............................................411
Diagnostic Procedure ..............................................351 Component Check ...................................................413
BT
DTC TURBINE REVOLUTION SENSOR (VG33ER KEY INTERLOCK CABLE ..........................................414
ONLY) ..........................................................................352 Components.............................................................414
Description ...............................................................352 Removal...................................................................414 HA
Wiring Diagram - AT - TRSA/T ................................354 Installation................................................................415
Diagnostic Procedure ..............................................355 ON-VEHICLE SERVICE ..............................................416
Component Inspection.............................................356 Control Valve Assembly and Accumulators.............416 SC
DTC CONTROL UNIT (RAM), CONTROL UNIT Revolution Sensor Replacement .............................417
(ROM)...........................................................................357
EL
IDX
AT-3
CONTENTS (Cont'd)
Turbine Revolution Sensor Replacement Rear Internal Gear and Forward Clutch Hub ..........471
(VG33ER only).........................................................417 Band Servo Piston Assembly ..................................474
Rear Oil Seal Replacement.....................................417 Parking Pawl Components ......................................478
Parking Components Inspection..............................418 ASSEMBLY..................................................................480
Park/Neutral Position (PNP) Switch Adjustment .....418 Assembly (1)............................................................480
Manual Control Linkage Adjustment........................419 Adjustment ...............................................................487
REMOVAL AND INSTALLATION ...............................420 Assembly (2)............................................................490
Removal...................................................................420 SERVICE DATA AND SPECIFICATIONS (SDS) .......497
Installation................................................................422 General Specifications.............................................497
OVERHAUL .................................................................423 Shift Schedule..........................................................497
Components.............................................................423 Stall Revolution........................................................497
Oil Channel ..............................................................425 Line Pressure...........................................................498
Locations of Needle Bearings, Thrust Washers Return Springs.........................................................498
and Snap Rings .......................................................426 Accumulator O-ring..................................................499
DISASSEMBLY............................................................427 Clutches and Brakes ...............................................499
REPAIR FOR COMPONENT PARTS .........................438 Oil Pump and Low One-way Clutch ........................502
Oil Pump ..................................................................438 Total End Play..........................................................502
Control Valve Assembly...........................................442 Reverse Clutch Drum End Play ..............................502
Control Valve Upper Body .......................................448 Removal and Installation .........................................502
Control Valve Lower Body .......................................453 Shift Solenoid Valves...............................................502
Reverse Clutch ........................................................455 Solenoid Valves .......................................................502
High Clutch ..............................................................459 A/T Fluid Temperature Sensor.................................503
Forward and Overrun Clutches ...............................461 Turbine Revolution Sensor ......................................503
Low & Reverse Brake..............................................465 Revolution Sensor ...................................................503
Forward Clutch Drum Assembly..............................469 Dropping Resistor ....................................................503
AT-4
PRECAUTIONS RL4R01A
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
NEAT0400
GI
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger in a frontal collision.
The Supplemental Restraint System consists of air bag modules (located in the center of the steering wheel MA
and in the instrument panel on the passenger side), seat belt pre-tensioners, a diagnosis sensor unit, warn-
ing lamp, wiring harness, and spiral cable.
The vehicle (except Crew Cab model) is equipped with a passenger air bag deactivation switch. Because no EM
rear seat exists where a rear-facing child restraint can be placed, the switch is designed to turn off the pas-
senger air bag so that a rear-facing child restraint can be used in the front passenger seat. The switch is
located in the center of the instrument panel, near the ashtray. When the switch is turned to the ON position, LC
the passenger air bag is enabled and could inflate in a frontal collision. When the switch is turned to the OFF
position, the passenger air bag is disabled and will not inflate in a frontal collision. A passenger air bag OFF
indicator on the instrument panel lights up when the passenger air bag is switched OFF. The driver air bag EC
always remains enabled and is not affected by the passenger air bag deactivation switch.
Information necessary to service the system safely is included in the RS section of this Service Manual.
WARNING: FE
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