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AUTOMATIC TRANSAXLE GI
SECTION AT MA
EM
LC
EC
CONTENTS FE
TROUBLE DIAGNOSIS - INDEX ....................................4 Road Test...................................................................66
Alphabetical & P No. Index for DTC ...........................4 TROUBLE DIAGNOSIS - GENERAL
PRECAUTIONS ...............................................................6 DESCRIPTION ...............................................................83 AX
Precautions for Supplemental Restraint System Symptom Chart..........................................................83
(SRS) AIR BAG and SEAT BELT TCM Terminals and Reference Value........................95
PRE-TENSIONER ......................................................6 TROUBLE DIAGNOSIS FOR POWER SUPPLY........100 SU
Precautions for On Board Diagnostic (OBD) Wiring Diagram - AT - MAIN....................................100
System of A/T and Engine...........................................6 DTC P0705 PARK/NEUTRAL POSITION SWITCH ...103
Precautions ..................................................................6 Description ...............................................................103
BR
Service Notice or Precautions .....................................8 Wiring Diagram - AT - PNP/SW...............................105
Wiring Diagrams and Trouble Diagnosis.....................9 Diagnostic Procedure ..............................................106 ST
PREPARATION .............................................................10 Component Inspection.............................................109
Special Service Tools ................................................10 DTC P0710 A/T FLUID TEMPERATURE SENSOR
Commercial Service Tools .........................................12 CIRCUIT .......................................................................110 RS
OVERALL SYSTEM ......................................................14 Description ...............................................................110
A/T Electrical Parts Location .....................................14 Wiring Diagram - AT - FTS ......................................112
Circuit Diagram ..........................................................15 Diagnostic Procedure ..............................................113 BT
Cross-sectional View .................................................16 Component Inspection.............................................116
Hydraulic Control Circuit............................................17 DTC P0720 VEHICLE SPEED SENSOR.A/T
HA
Shift Mechanism ........................................................18 (REVOLUTION SENSOR) ...........................................117
Control System ..........................................................27 Description ...............................................................117
Control Mechanism....................................................29 Wiring Diagram - AT - VSSA/T ................................119 SC
Control Valve .............................................................33 Diagnostic Procedure ..............................................120
ON BOARD DIAGNOSTIC SYSTEM Component Inspection.............................................122
DESCRIPTION ...............................................................35 DTC P0725 ENGINE SPEED SIGNAL .......................123 EL
Introduction ................................................................35 Description ...............................................................123
OBD-II Function for A/T System................................35 Wiring Diagram - AT - ENGSS ................................124
One or Two Trip Detection Logic of OBD-II ..............35 Diagnostic Procedure ..............................................125
IDX
OBD-II Diagnostic Trouble Code (DTC) ....................35 DTC P0731 A/T 1ST GEAR FUNCTION ....................127
Malfunction Indicator Lamp (MIL)..............................38 Description ...............................................................127
CONSULT-II ...............................................................39 Wiring Diagram - AT - 1ST ......................................130
Diagnostic Procedure Without CONSULT-II..............48 Diagnostic Procedure ..............................................131
TROUBLE DIAGNOSIS - INTRODUCTION..................55 Component Inspection.............................................132
Introduction ................................................................55 DTC P0732 A/T 2ND GEAR FUNCTION....................133
Work Flow..................................................................59 Description ...............................................................133
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........61 Wiring Diagram - AT - 2ND......................................136
A/T Fluid Check .........................................................61 Diagnostic Procedure ..............................................137
Stall Test ....................................................................61 Component Inspection.............................................138
Line Pressure Test.....................................................65 DTC P0733 A/T 3RD GEAR FUNCTION....................139
CONTENTS (Cont'd)
Description ...............................................................139 DTC VEHICLE SPEED SENSOR.MTR .......................205
Wiring Diagram - AT - 3RD......................................142 Description ...............................................................205
Diagnostic Procedure ..............................................143 Wiring Diagram - AT - VSSMTR..............................207
Component Inspection.............................................144 Diagnostic Procedure ..............................................208
DTC P0734 A/T 4TH GEAR FUNCTION ....................145 CONTROL UNIT (RAM), CONTROL UNIT (ROM).....209
Description ...............................................................145 Description ...............................................................209
Wiring Diagram - AT - 4TH ......................................149 On Board Diagnosis Logic.......................................209
Diagnostic Procedure ..............................................150 DTC Confirmation Procedure ..................................209
Component Inspection.............................................153 Diagnostic Procedure ..............................................210
DTC P0740 TORQUE CONVERTER CLUTCH CONTROL UNIT (EEP ROM)......................................211
SOLENOID VALVE......................................................154 Description ...............................................................211
Description ...............................................................154 On Board Diagnosis Logic.......................................211
Wiring Diagram - AT - TCV......................................156 DTC Confirmation Procedure ..................................211
Diagnostic Procedure ..............................................157 Diagnostic Procedure ..............................................212
Component Inspection.............................................158 TROUBLE DIAGNOSES FOR SYMPTOMS ...............213
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) ....159 Wiring Diagram - AT - NONDTC .............................213
Description ...............................................................159 1. O/D OFF Indicator Lamp Does Not Come On....216
Wiring Diagram - AT - TCCSIG ...............................161 2. Engine Cannot Be Started In P and N Position..218
Diagnostic Procedure ..............................................162 3. In P Position, Vehicle Moves Forward or
Component Inspection.............................................166 Backward When Pushed .........................................219
DTC P0745 LINE PRESSURE SOLENOID VALVE ...167 4. In N Position, Vehicle Moves ..............................220
Description ...............................................................167 5. Large Shock. N -> R Position .............................222
Wiring Diagram - AT - LPSV....................................169 6. Vehicle Does Not Creep Backward In R
Diagnostic Procedure ..............................................170 Position ....................................................................224
Component Inspection.............................................172 7. Vehicle Does Not Creep Forward in D, 2 or 1
DTC P0750 SHIFT SOLENOID VALVE A ..................173 Position ....................................................................228
Description ...............................................................173 8. Vehicle Cannot Be Started From D1 ...................231
Wiring Diagram - AT - SSV/A ..................................175 9. A/T Does Not Shift: D1 -> D2 or Does Not
Diagnostic Procedure ..............................................176 Kickdown: D4 -> D2..................................................234
Component Inspection.............................................178 10. A/T Does Not Shift: D2 -> D3.............................237
DTC P0755 SHIFT SOLENOID VALVE B ..................179 11. A/T Does Not Shift: D3 -> D4 .............................240
Description ...............................................................179 12. A/T Does Not Perform Lock-up .........................243
Wiring Diagram - AT - SSV/B ..................................181 13. A/T Does Not Hold Lock-up Condition ..............245
Diagnostic Procedure ..............................................182 14. Lock-up Is Not Released...................................247
Component Inspection.............................................184 15. Engine Speed Does Not Return To Idle (Light
DTC P1705 THROTTLE POSITION SENSOR ...........185 Braking D4 -> D3).....................................................248
Description ...............................................................185 16. Vehicle Does Not Start From D1 .......................250
Wiring Diagram - AT - TPS......................................187 17. A/T Does Not Shift: D4 -> D3, When
Diagnostic Procedure ..............................................188 Overdrive Control Switch ON -> OFF .....................251
Component Inspection.............................................191 18. A/T Does Not Shift: D3 -> 22, When Selector
DTC P1760 OVERRUN CLUTCH SOLENOID Lever D -> 2 Position ..............................................252
VALVE..........................................................................192 19. A/T Does Not Shift: 22 -> 11, When Selector
Description ...............................................................192 Lever 2 -> 1 Position ...............................................253
Wiring Diagram - AT - OVRCSV..............................194 20. Vehicle Does Not Decelerate By Engine
Diagnostic Procedure ..............................................195 Brake........................................................................254
Component Inspection.............................................197 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) ....198 Circuit Checks) ........................................................254
Description ...............................................................198 A/T SHIFT LOCK SYSTEM.........................................263
Wiring Diagram - AT - BA/FTS ................................200 Description ...............................................................263
Diagnostic Procedure ..............................................201 Wiring Diagram - SHIFT -........................................264
Component Inspection.............................................204 Shift Lock System Electrical Parts Location............265
AT-2
CONTENTS (Cont'd)
Removal...................................................................265 Band Servo Piston Assembly ..................................341 GI
Diagnostic Procedure ..............................................266 Final Drive................................................................346
Installation and Adjustment......................................268 ASSEMBLY..................................................................350
Component Check ...................................................269 Assembly (1)............................................................350 MA
ON-VEHICLE SERVICE ..............................................270 Adjustment (1) .........................................................350
Control Valve Assembly and Accumulators.............270 Assembly (2)............................................................355
Revolution Sensor Replacement .............................271 Adjustment (2) .........................................................361
EM
Park/Neutral Position (PNP) Switch Adjustment .....271 Assembly (3)............................................................363
Control Cable Adjustment........................................272 SERVICE DATA AND SPECIFICATIONS (SDS) .......370 LC
Differential Side Oil Seal Replacement ...................272 General Specifications.............................................370
REMOVAL AND INSTALLATION ...............................273 Shift Schedule..........................................................370
Removal...................................................................273 Stall Revolution........................................................370 EC
Installation................................................................274 Line Pressure...........................................................370
OVERHAUL .................................................................276 Control Valves..........................................................371
Components.............................................................276 Accumulator .............................................................371 FE
Oil Channel ..............................................................279 Clutch and Brakes ...................................................372
Locations of Adjusting Shims, Needle Bearings, Final Drive................................................................373
Thrust Washers and Snap Rings ............................280 Planetary Carrier and Oil Pump ..............................374
DISASSEMBLY............................................................281 Input Shaft ...............................................................375
REPAIR FOR COMPONENT PARTS .........................295 Reduction Pinion Gear ............................................375 AX
Manual Shaft............................................................295 Band Servo ..............................................................376
Oil Pump ..................................................................298 Output Shaft.............................................................376
Control Valve Assembly...........................................302 Bearing Retainer......................................................377 SU
Control Valve Upper Body .......................................310 Total End Play..........................................................377
Control Valve Lower Body .......................................314 Reverse Clutch End Play ........................................377
BR
Reverse Clutch ........................................................316 Removal and Installation .........................................378
High Clutch ..............................................................319 Shift Solenoid Valves...............................................378
Forward and Overrun Clutches ...............................324 Solenoid Valves .......................................................378 ST
Low & Reverse Brake..............................................329 A/T Fluid Temperature Sensor.................................378
Rear Internal Gear, Forward Clutch Hub and Revolution Sensor ...................................................378
Overrun Clutch Hub.................................................332 Dropping Resistor ....................................................378 RS
Output Shaft, Idler Gear, Reduction Pinion Gear
and Bearing Retainer...............................................336
BT
HA
SC
EL
IDX
AT-3
TROUBLE DIAGNOSIS -- INDEX
Alphabetical & P No. Index for DTC
Alphabetical & P No. Index for DTC NDAT0001
ALPHABETICAL INDEX FOR DTC NDAT0001S01
DTC
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
A/T 1ST GR FNCTN P0731 AT-127
A/T 2ND GR FNCTN P0732 AT-133
A/T 3RD GR FNCTN P0733 AT-139
A/T 4TH GR FNCTN P0734 AT-145
A/T TCC S/V FNCTN P0744 AT-159
ATF TEMP SEN/CIRC P0710 AT-110
ENGINE SPEED SIG P0725 AT-123
L/PRESS SOL/CIRC P0745 AT-167
O/R CLTCH SOL/CIRC P1760 AT-192
PNP SW/CIRC P0705 AT-103
SFT SOL A/CIRC*2 P0750 AT-173
SFT SOL B/CIRC*2 P0755 AT-179
TCC SOLENOID/CIRC P0740 AT-154
TP SEN/CIRC A/T*2 P1705 AT-185
VEH SPD SEN/CIR AT*3 P0720 AT-117
*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 =NDAT0001S02
DTC GI
Items
CONSULT-II Reference page
(CONSULT-II screen terms)
GST*1
MA
P0705 PNP SW/CIRC AT-103
P0710 ATF TEMP SEN/CIRC AT-110
EM
P0720 VEH SPD SEN/CIR AT*3 AT-117
P0725 ENGINE SPEED SIG AT-123
LC
P0731 A/T 1ST GR FNCTN AT-127
P0732 A/T 2ND GR FNCTN AT-133 EC
P0733 A/T 3RD GR FNCTN AT-139
P0734 A/T 4TH GR FNCTN AT-145 FE
P0740 TCC SOLENOID/CIRC AT-154
P0744 A/T TCC S/V FNCTN AT-159
P0745 L/PRESS SOL/CIRC AT-167
P0750 SFT SOL A/CIRC*2 AT-173 AX
P0755 SFT SOL B/CIRC*2 AT-179
P1705 TP SEN/CIRC A/T*2 AT-185 SU
P1760 O/R CLTCH SOL/CIRC AT-192
*1: These numbers are prescribed by SAE J2012.
BR
*2: When the fail-safe operation occurs, the MIL illuminates.
*3: The MIL illuminates when both the "Revolution sensor signal" and the "Vehicle speed sensor signal" meet the fail-safe condition at
the same time. ST
RS
BT
HA
SC
EL
IDX
AT-5
PRECAUTIONS
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Precautions for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" NDAT0002
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, warning lamp, wiring 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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