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AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
A
B
SECTION
AUTOMATIC TRANSMISSION AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5. Fail-Safe ................................................................ 42
. F
Alphabetical Index ................................................... 5
. How To Perform Trouble Diagnosis For Quick and
DTC No. Index ........................................................ 6
. Accurate Repair ..................................................... 44
.
PRECAUTIONS ......................................................... 7. A/T Electrical Parts Location ................................. 49 . G
Precautions for Supplemental Restraint System Circuit Diagram ...................................................... 50
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Inspections Before Trouble Diagnosis ................... 51 .
SIONER" ................................................................. 7
. Check Before Engine is Started ............................. 55 .
H
Precautions for On Board Diagnostic (OBD) System Check at Idle .......................................................... 55
.
of A/T and Engine ................................................... 7
. Cruise Test - Part 1 ................................................ 56
.
Precautions for TCM, A/T Assembly and Control Cruise Test - Part 2 ................................................ 58
.
Valve Assembly Replacement ................................. 8 . Cruise Test - Part 3 ................................................ 59
. I
Precautions ............................................................. 9
. Vehicle Speed When Shifting Gears ..................... 61 .
Service Notice or Precautions ............................... 10 . Vehicle Speed When Performing and Releasing
Wiring Diagrams and Trouble Diagnosis ............... 10 . Complete Lock-up ................................................. 61 . J
PREPARATION .........................................................11. Vehicle Speed When Performing and Releasing
Special Service Tools .............................................11. Slip Lock-up ........................................................... 61
.
Commercial Service Tools ..................................... 12 . Symptom Chart ...................................................... 62.
K
A/T FLUID ................................................................ 13
. TCM Input/Output Signal Reference Values .......... 89 .
Changing A/T Fluid ............................................... 13. CONSULT-II ........................................................... 92
.
Checking A/T Fluid ................................................ 13
. Diagnostic Procedure Without CONSULT-II ........ 103 .
A/T Fluid Cooler Cleaning ..................................... 15 . DTC U1000 CAN COMMUNICATION LINE ........... 105 . L
A/T CONTROL SYSTEM ......................................... 18 . Description ........................................................... 105
.
Cross-Sectional View ............................................ 18 . On Board Diagnosis Logic ................................... 105 .
Shift Mechanism .................................................... 19
. Possible Cause .................................................... 105. M
TCM Function ........................................................ 30
. DTC Confirmation Procedure .............................. 105 .
CAN Communication ............................................. 31 . Wiring Diagram -- AT -- CAN ............................. 106 .
Input/Output Signal of TCM ................................... 31 . Diagnostic Procedure .......................................... 107 .
Line Pressure Control ........................................... 32 . DTC P0615 START SIGNAL CIRCUIT .................. 108 .
Shift Control .......................................................... 34
. Description ........................................................... 108
.
Lock-Up Control .................................................... 34
. On Board Diagnosis Logic ................................... 108 .
Engine Brake Control ............................................ 36 . Possible Cause .................................................... 108.
Control Valve ......................................................... 36
. DTC Confirmation Procedure .............................. 108 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 38 . Wiring Diagram -- AT -- STSIG ......................... 109 .
Introduction ........................................................... 38
. Diagnostic Procedure .......................................... 110 .
OBD-II Function for A/T System ............................ 38 . DTC P0705 PARK/NEUTRAL POSITION SWITCH. 112
One or Two Trip Detection Logic of OBD-II ........... 38 . Description ........................................................... 112
.
OBD-II Diagnostic Trouble Code (DTC) ................ 38 . On Board Diagnosis Logic ................................... 112 .
Malfunction Indicator Lamp (MIL) .......................... 41 . Possible Cause .................................................... 112.
TROUBLE DIAGNOSIS ........................................... 42 . DTC Confirmation Procedure .............................. 112 .
DTC Inspection Priority Chart ............................... 42 . Wiring Diagram -- AT -- PNP/SW ...................... 113 .
AT-1
Diagnostic Procedure .......................................... 114 . (ROM) ..................................................................... 147
.
Component Inspection ......................................... 116 . Description ........................................................... 147
.
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- On Board Diagnosis Logic ................................... 147 .
OLUTION SENSOR) .............................................. 117 . Possible Cause .................................................... 147 .
Description ........................................................... 117
. DTC Confirmation Procedure ............................... 147 .
On Board Diagnosis Logic ................................... 117 . Diagnostic Procedure ........................................... 148 .
Possible Cause .................................................... 117 . DTC P1704 TRANSMISSION CONTROL MODULE
DTC Confirmation Procedure .............................. 117 . (EEPROM) .............................................................. 149
.
Wiring Diagram -- AT -- VSSA/T ........................ 118 . Description ........................................................... 149
.
Diagnostic Procedure .......................................... 119 . On Board Diagnosis Logic ................................... 149 .
DTC P0725 ENGINE SPEED SIGNAL .................. 122 . Possible Cause .................................................... 149 .
Description ........................................................... 122
. DTC Confirmation Procedure ............................... 149 .
On Board Diagnosis Logic ................................... 122 . Diagnostic Procedure ........................................... 150 .
Possible Cause .................................................... 122 . DTC P1705 THROTTLE POSITION SENSOR ....... 151 .
DTC Confirmation Procedure .............................. 122 . Description ........................................................... 151
.
Diagnostic Procedure .......................................... 123 . On Board Diagnosis Logic ................................... 151 .
DTC P0740 TORQUE CONVERTER CLUTCH Possible Cause .................................................... 151 .
SOLENOID VALVE ................................................ 124 . DTC Confirmation Procedure ............................... 151 .
Description ........................................................... 124
. Diagnostic Procedure ........................................... 152 .
CONSULT-II Reference Value ............................. 124 . DTC P1710 A/T FLUID TEMPERATURE SENSOR
On Board Diagnosis Logic ................................... 124 . CIRCUIT ................................................................. 153
.
Possible Cause .................................................... 124 . Description ........................................................... 153
.
DTC Confirmation Procedure .............................. 124 . CONSULT-II Reference Value .............................. 153 .
Wiring Diagram -- AT -- TCV ............................. 125 . On Board Diagnosis Logic ................................... 153 .
Diagnostic Procedure .......................................... 126 . Possible Cause .................................................... 153 .
Component Inspection ......................................... 128 . DTC Confirmation Procedure ............................... 153 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 129 Wiring Diagram -- AT -- FTS .............................. 154 .
Description ........................................................... 129
. Diagnostic Procedure ........................................... 155 .
On Board Diagnosis Logic ................................... 129 . Component Inspection ......................................... 158 .
Possible Cause .................................................... 129 . DTC P1716 TURBINE REVOLUTION SENSOR ... 159 .
DTC Confirmation Procedure .............................. 129 . Description ........................................................... 159
.
Wiring Diagram -- AT -- TCCSIG ....................... 130 . On Board Diagnosis Logic ................................... 159 .
Diagnostic Procedure .......................................... 131 . Possible Cause .................................................... 159 .
Component Inspection ......................................... 133 . DTC Confirmation Procedure ............................... 159 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 134 Wiring Diagram -- AT -- TRSA/T ........................ 160 .
Description ........................................................... 134
. Diagnostic Procedure ........................................... 161 .
On Board Diagnosis Logic ................................... 134 . DTC P1721 VEHICLE SPEED SENSOR MTR ...... 164 .
Possible Cause .................................................... 134 . Description ........................................................... 164
.
DTC Confirmation Procedure .............................. 134 . On Board Diagnosis Logic ................................... 164 .
Wiring Diagram -- AT -- LPSV ........................... 135 . Possible Cause .................................................... 164 .
Diagnostic Procedure .......................................... 136 . DTC Confirmation Procedure ............................... 164 .
Component Inspection ......................................... 138 . Diagnostic Procedure ........................................... 165 .
DTC P1701 TRANSMISSION CONTROL MODULE DTC P1730 A/T INTERLOCK ................................ 166 .
(POWER SUPPLY) ................................................. 139 . Description ........................................................... 166
.
Description ........................................................... 139
. On Board Diagnosis Logic ................................... 166 .
On Board Diagnosis Logic ................................... 139 . Possible Cause .................................................... 166 .
Possible Cause .................................................... 139 . DTC Confirmation Procedure ............................... 166 .
DTC Confirmation Procedure .............................. 139 . Wiring Diagram -- AT -- I/LOCK ......................... 167 .
Wiring Diagram -- AT -- POWER ....................... 140 . Judgement of A/T Interlock .................................. 171 .
Diagnostic Procedure .......................................... 142 . Diagnostic Procedure ........................................... 171 .
Component Inspection ......................................... 144 . DTC P1731 A/T 1ST ENGINE BRAKING .............. 173 .
DTC P1702 TRANSMISSION CONTROL MODULE Description ........................................................... 173
.
(RAM) ..................................................................... 145
. On Board Diagnosis Logic ................................... 173 .
Description ........................................................... 145
. Possible Cause .................................................... 173 .
On Board Diagnosis Logic ................................... 145 . DTC Confirmation Procedure ............................... 173 .
Possible Cause .................................................... 145 . Wiring Diagram -- AT -- E/BRE .......................... 174 .
DTC Confirmation Procedure .............................. 145 . Diagnostic Procedure ........................................... 175 .
Diagnostic Procedure .......................................... 146 . DTC P1752 INPUT CLUTCH SOLENOID VALVE . 177
DTC P1703 TRANSMISSION CONTROL MODULE Description ........................................................... 177
.
AT-2
On Board Diagnosis Logic .................................. 177 . Possible Cause .................................................... 210 .
Possible Cause ................................................... 177
. DTC Confirmation Procedure .............................. 210 . A
DTC Confirmation Procedure .............................. 177 . Wiring Diagram -- AT -- HLR/CF ....................... 211 .
Wiring Diagram -- AT -- I/C ............................... 178 . Diagnostic Procedure .......................................... 212 .
Diagnostic Procedure .......................................... 179 . DTC P1772 LOW COAST BRAKE SOLENOID B
Component Inspection ........................................ 181 . VALVE .................................................................... 215
.
DTC P1754 INPUT CLUTCH SOLENOID VALVE Description ........................................................... 215
.
FUNCTION ............................................................. 182
. On Board Diagnosis Logic ................................... 215 .
Description .......................................................... 182
. Possible Cause .................................................... 215 . AT
On Board Diagnosis Logic .................................. 182 . DTC Confirmation Procedure .............................. 215 .
Possible Cause ................................................... 182
. Wiring Diagram -- AT -- LC/B ............................ 216 .
DTC Confirmation Procedure .............................. 182 . Diagnostic Procedure .......................................... 217 . D
Wiring Diagram -- AT -- I/CF ............................. 183 . Component Inspection ......................................... 219 .
Diagnostic Procedure .......................................... 184 . DTC P1774 LOW COAST BRAKE SOLENOID
DTC P1757 FRONT BRAKE SOLENOID VALVE . 186 VALVE FUNCTION ................................................. 220 . E
Description .......................................................... 186
. Description ........................................................... 220
.
On Board Diagnosis Logic .................................. 186 . On Board Diagnosis Logic ................................... 220 .
Possible Cause ................................................... 186
. Possible Cause .................................................... 220 .
DTC Confirmation Procedure .............................. 186 . DTC Confirmation Procedure .............................. 220 . F
Wiring Diagram -- AT -- FR/B ............................ 187 . Wiring Diagram -- AT -- LC/BF .......................... 221 .
Diagnostic Procedure .......................................... 188 . Diagnostic Procedure .......................................... 222 .
Component Inspection ........................................ 190 . DTC P1815 MANUAL MODE SWITCH ................. 224 . G
DTC P1759 FRONT BRAKE SOLENOID VALVE Description ........................................................... 224
.
FUNCTION ............................................................. 191
. CONSULT-II Reference Value in Data Monitor Mode
Description .......................................................... 191
. . 224 H
On Board Diagnosis Logic .................................. 191 . On Board Diagnosis Logic ................................... 224 .
Possible Cause ................................................... 191
. Possible Cause .................................................... 224 .
DTC Confirmation Procedure .............................. 191 . DTC Confirmation Procedure .............................. 224 .
I
Wiring Diagram -- AT -- FR/BF .......................... 192 . Wiring Diagram -- AT -- MMSW ........................ 225 .
Diagnostic Procedure .......................................... 193 . Diagnostic Procedure .......................................... 226 .
DTC P1762 DIRECT CLUTCH SOLENOID VALVE 196 . Component Inspection ......................................... 227 .
Description .......................................................... 196
. Position Indicator Lamp ....................................... 227 . J
On Board Diagnosis Logic .................................. 196 . DTC P1841 ATF PRESSURE SWITCH 1 .............. 228 .
Possible Cause ................................................... 196
. Description ........................................................... 228
.
DTC Confirmation Procedure .............................. 196 . On Board Diagnosis Logic ................................... 228 . K
Wiring Diagram -- AT -- D/C .............................. 197 . Possible Cause .................................................... 228 .
Diagnostic Procedure .......................................... 198 . DTC Confirmation Procedure .............................. 228 .
Component Inspection ........................................ 200 . Wiring Diagram -- AT -- FPSW1 ........................ 229 . L
DTC P1764 DIRECT CLUTCH SOLENOID VALVE Diagnostic Procedure .......................................... 230 .
FUNCTION ............................................................. 201
. DTC P1843 ATF PRESSURE SWITCH 3 .............. 232 .
Description .......................................................... 201
. Description ........................................................... 232
.
On Board Diagnosis Logic .................................. 201 . On Board Diagnosis Logic ................................... 232 . M
Possible Cause ................................................... 201
. Possible Cause .................................................... 232 .
DTC Confirmation Procedure .............................. 201 . DTC Confirmation Procedure .............................. 232 .
Wiring Diagram -- AT -- D/CF ............................ 202 . Wiring Diagram -- AT -- FPSW3 ........................ 233 .
Diagnostic Procedure .......................................... 203 . Diagnostic Procedure .......................................... 234 .
DTC P1767 HIGH AND LOW REVERSE CLUTCH DTC P1845 ATF PRESSURE SWITCH 5 .............. 236 .
SOLENOID VALVE ................................................ 205 . Description ........................................................... 236
.
Description .......................................................... 205
. On Board Diagnosis Logic ................................... 236 .
On Board Diagnosis Logic .................................. 205 . Possible Cause .................................................... 236 .
Possible Cause ................................................... 205
. DTC Confirmation Procedure .............................. 236 .
DTC Confirmation Procedure .............................. 205 . Wiring Diagram -- AT -- FPSW5 ........................ 237 .
Wiring Diagram -- AT -- HLR/C ......................... 206 . Diagnostic Procedure .......................................... 238 .
Diagnostic Procedure .......................................... 207 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 240 .
Component Inspection ........................................ 209 . Description ........................................................... 240
.
DTC P1769 HIGH AND LOW REVERSE CLUTCH On Board Diagnosis Logic ................................... 240 .
SOLENOID VALVE FUNCTION ............................ 210 . Possible Cause .................................................... 240 .
Description .......................................................... 210
. DTC Confirmation Procedure .............................. 240 .
On Board Diagnosis Logic .................................. 210 .
AT-3
Wiring Diagram -- AT -- FPSW6 ........................ 241 . ON-VEHICLE SERVICE ......................................... 299 .
Diagnostic Procedure .......................................... 242 . Control Valve Assembly ....................................... 299 .
PARK/NEUTRAL POSITION, MANUAL MODE, Rear Oil Seal ........................................................ 306
.
BRAKE AND THROTTLE POSITION SWITCH CIR- Parking Components ........................................... 307 .
CUIT ....................................................................... 244
. AIR BREATHER HOSE .......................................... 313 .
Diagnostic Procedure .......................................... 244 . Removal and Installation ...................................... 313 .
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 246 . TRANSMISSION ASSEMBLY ................................ 314 .
Wiring Diagram -- AT -- NONDTC ..................... 246 . Removal and Installation ...................................... 314 .
A/T Check Indicator Lamp Does Not Come On ... 248 . OVERHAUL ............................................................ 317
.
Engine Cannot Be Started In "P" or "N" Position . 250 Components ......................................................... 317
.
In "P" Position, Vehicle Moves When Pushed ..... 250 . Oil Channel .......................................................... 323
.
In "N" Position, Vehicle Moves ............................. 251 . Locations of Adjusting Shims, Needle Bearings,
Large Shock ("N" to "D" Position) ........................ 253 . Thrust Washers and Snap Rings ......................... 324 .
Vehicle Does Not Creep Backward In "R" Position. 255 DISASSEMBLY ...................................................... 325 .
Vehicle Does Not Creep Forward In "D" Position . 258 Disassembly ......................................................... 325
.
Vehicle Cannot Be Started From D1 .................... 260 . REPAIR FOR COMPONENT PARTS ..................... 339 .
A/T Does Not Shift: D1 D2 ............................... 263 . Oil Pump .............................................................. 339
.
A/T Does Not Shift: D2 D3 ............................... 265 . Front Sun Gear, 3rd One-Way Clutch .................. 342 .
A/T Does Not Shift: D3 D4 ............................... 267 . Front Carrier, Input Clutch, Rear Internal Gear .... 344 .
A/T Does Not Shift: D4 D5 ............................... 270 . Mid Sun Gear, Rear Sun Gear, High and Low
A/T Does Not Perform Lock-up ........................... 272 . Reverse Clutch Hub ............................................. 349 .
A/T Does Not Hold Lock-up Condition ................. 274 . High and Low Reverse Clutch ............................. 354 .
Lock-up Is Not Released ..................................... 276 . Direct Clutch ........................................................ 356
.
Engine Speed Does Not Return To Idle ............... 276 . ASSEMBLY ............................................................ 358
.
Cannot Be Changed to Manual Mode ................. 278 . Assembly (1) ........................................................ 358
.
A/T Does Not Shift: 5th gear 4th gear ............. 278 . Adjustment ........................................................... 369
.
A/T Does Not Shift: 4th gear 3rd gear ............. 280 . Assembly (2) ........................................................ 371
.
A/T Does Not Shift: 3rd gear 2nd gear ............ 282 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 377 .
A/T Does Not Shift: 2nd gear 1st gear ............ 284 . General Specifications ......................................... 377 .
Vehicle Does Not Decelerate By Engine Brake ... 286 . Vehicle Speed When Shifting Gears .................... 377 .
SHIFT CONTROL SYSTEM ................................... 288 . Vehicle Speed When Performing and Releasing
Control Device Removal and Installation ............. 288 . Complete Lock-up ................................................ 377 .
Adjustment of A/T Position .................................. 289 . Vehicle Speed When Performing and Releasing
Checking of A/T Position ..................................... 289 . Slip Lock-up ......................................................... 377
.
A/T SHIFT LOCK SYSTEM .................................... 291 . Stall Speed ........................................................... 377
.
Description ........................................................... 291
. Line Pressure ....................................................... 378
.
Shift Lock System Electrical Parts Location ........ 291 . Solenoid Valves ................................................... 378
.
Wiring Diagram -- AT -- SHIFT .......................... 292 . A/T Fluid Temperature Sensor ............................. 378 .
Diagnostic Procedure .......................................... 293 . Turbine Revolution Sensor ................................... 378 .
KEY INTERLOCK CABLE ..................................... 296 . Vehicle Speed Sensor A/T (Revolution Sensor) .. 378 .
Components ........................................................ 296 . Reverse Brake ..................................................... 378
.
Removal .............................................................. 297. Total End Play ...................................................... 378
.
Installation ............................................................ 298
.
AT-4
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index ACS00081
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-105 .
DTC
Items OBD-II Except OBD-II AT
Reference page
(CONSULT-II screen terms)
CONSULT-II CONSULT-II
GST*1 only "A/T"
A/T 1ST E/BRAKING -- P1731 AT-173 D
ATF PRES SW 1/CIRC -- P1841 AT-228
ATF PRES SW 3/CIRC -- P1843 AT-232
E
ATF PRES SW 5/CIRC -- P1845 AT-236
ATF PRES SW 6/CIRC -- P1846 AT-240
A/T INTERLOCK P1730 P1730 AT-166 F
A/T TCC S/V FNCTN P0744 P0744 AT-129
ATF TEMP SEN/CIRC P0710 P1710 AT-153
G
CAN COMM CIRCUIT U1000 U1000 AT-105
D/C SOLENOID/CIRC P1762 P1762 AT-196
D/C SOLENOID FNCTN P1764 P1764 AT-201 H
ENGINE SPEED SIG P0725 P0725 AT-122
FR/B SOLENOID/CIRC P1757 P1757 AT-186
I
FR/B SOLENOID FNCT P1759 P1759 AT-191
HLR/C SOL/CIRC P1767 P1767 AT-205
HLR/C SOL FNCTN P1769 P1769 AT-210 J
I/C SOLENOID/CIRC P1752 P1752 AT-177
I/C SOLENOID FNCTN P1754 P1754 AT-182
L/PRESS SOL/CIRC P0745 P0745 AT-134 K
LC/B SOLENOID/CIRC P1772 P1772 AT-215
LC/B SOLENOID FNCT P1774 P1774 AT-220
L
MANU MODE SW/CIR -- P1815 AT-224
PNP SW/CIRC P0705 P0705 AT-112
STARTER RELAY/CIRC -- P0615 AT-108 M
TCC SOLENOID/CIRC P0740 P0740 AT-124
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