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AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
A
AUTOMATIC TRANSMISSION
SECTION AT B
AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5. DTC Inspection Priority Chart ................................ 42 . F
Alphabetical Index ................................................... 5
. Fail-Safe ................................................................ 42
.
DTC No. Index ........................................................ 6
. How To Perform Trouble Diagnosis For Quick and
PRECAUTIONS ......................................................... 7. Accurate Repair ..................................................... 44
. G
Precautions for Supplemental Restraint System A/T Electrical Parts Location ................................. 49 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Circuit Diagram ...................................................... 50
.
SIONER" ................................................................. 7
. Inspections Before Trouble Diagnosis ................... 51 .
H
Precautions for Battery Service ............................... 7 . Check Before Engine is Started ............................. 55 .
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
. I
Valve Assembly Replacement ................................. 8 . Cruise Test - Part 3 ................................................ 59
.
Precautions ............................................................. 9
. Vehicle Speed When Shifting Gears ..................... 61 .
Service Notice or Precautions ............................... 10 . Vehicle Speed When Performing and Releasing J
Wiring Diagrams and Trouble Diagnosis ............... 10 . Complete Lock-up ................................................. 61 .
PREPARATION .........................................................11. Vehicle Speed When Performing and Releasing
Special Service Tools .............................................11. Slip Lock-up ........................................................... 61
.
K
Commercial Service Tools ..................................... 12 . Symptom Chart ...................................................... 62.
A/T FLUID ................................................................ 13
. TCM Input/Output Signal Reference Values .......... 88 .
Changing A/T Fluid ............................................... 13. CONSULT-II ........................................................... 91
.
Checking A/T Fluid ................................................ 13
. Diagnostic Procedure Without CONSULT-II ........ 102 . L
A/T Fluid Cooler Cleaning ..................................... 15 . DTC U1000 CAN COMMUNICATION LINE ........... 104 .
A/T CONTROL SYSTEM ......................................... 18 . Description ........................................................... 104
.
Cross-Sectional View ............................................ 18 . On Board Diagnosis Logic ................................... 104 . M
Shift Mechanism .................................................... 19
. Possible Cause .................................................... 104.
TCM Function ........................................................ 30
. DTC Confirmation Procedure .............................. 104 .
CAN Communication ............................................. 31 . Wiring Diagram -- AT -- CAN ............................. 105 .
Input/Output Signal of TCM ................................... 31 . Diagnostic Procedure .......................................... 106 .
Line Pressure Control ........................................... 32 . DTC P0615 START SIGNAL CIRCUIT .................. 107 .
Shift Control .......................................................... 33
. Description ........................................................... 107
.
Lock-Up Control .................................................... 34
. On Board Diagnosis Logic ................................... 107 .
Engine Brake Control ............................................ 36 . Possible Cause .................................................... 107.
Control Valve ......................................................... 36
. DTC Confirmation Procedure .............................. 107 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 38 . Wiring Diagram -- AT -- STSIG ......................... 108 .
Introduction ........................................................... 38
. Diagnostic Procedure .......................................... 109 .
OBD-II Function for A/T System ............................ 38 . DTC P0705 PARK/NEUTRAL POSITION SWITCH..111
One or Two Trip Detection Logic of OBD-II ........... 38 . Description ............................................................111
.
OBD-II Diagnostic Trouble Code (DTC) ................ 38 . On Board Diagnosis Logic ....................................111 .
Malfunction Indicator Lamp (MIL) .......................... 41 . Possible Cause .....................................................111.
TROUBLE DIAGNOSIS ........................................... 42 . DTC Confirmation Procedure ...............................111 .
AT-1
Wiring Diagram -- AT -- PNP/SW ...................... 112 . DTC P1703 TRANSMISSION CONTROL MODULE
Diagnostic Procedure .......................................... 113 . (ROM) ..................................................................... 146
.
Component Inspection ......................................... 115 . Description ........................................................... 146
.
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- On Board Diagnosis Logic ................................... 146 .
OLUTION SENSOR) .............................................. 116 . Possible Cause .................................................... 146 .
Description ........................................................... 116
. DTC Confirmation Procedure ............................... 146 .
On Board Diagnosis Logic ................................... 116 . Diagnostic Procedure ........................................... 147 .
Possible Cause .................................................... 116 . DTC P1704 TRANSMISSION CONTROL MODULE
DTC Confirmation Procedure .............................. 116 . (EEPROM) .............................................................. 148
.
Wiring Diagram -- AT -- VSSA/T ........................ 117 . Description ........................................................... 148
.
Diagnostic Procedure .......................................... 118 . On Board Diagnosis Logic ................................... 148 .
DTC P0725 ENGINE SPEED SIGNAL .................. 121 . Possible Cause .................................................... 148 .
Description ........................................................... 121
. DTC Confirmation Procedure ............................... 148 .
On Board Diagnosis Logic ................................... 121 . Diagnostic Procedure ........................................... 149 .
Possible Cause .................................................... 121 . DTC P1705 THROTTLE POSITION SENSOR ....... 150 .
DTC Confirmation Procedure .............................. 121 . Description ........................................................... 150
.
Diagnostic Procedure .......................................... 121 . On Board Diagnosis Logic ................................... 150 .
DTC P0740 TORQUE CONVERTER CLUTCH Possible Cause .................................................... 150 .
SOLENOID VALVE ................................................ 123 . DTC Confirmation Procedure ............................... 150 .
Description ........................................................... 123
. Diagnostic Procedure ........................................... 150 .
CONSULT-II Reference Value ............................. 123 . DTC P1710 A/T FLUID TEMPERATURE SENSOR
On Board Diagnosis Logic ................................... 123 . CIRCUIT ................................................................. 152
.
Possible Cause .................................................... 123 . Description ........................................................... 152
.
DTC Confirmation Procedure .............................. 123 . CONSULT-II Reference Value .............................. 152 .
Wiring Diagram -- AT -- TCV ............................. 124 . On Board Diagnosis Logic ................................... 152 .
Diagnostic Procedure .......................................... 125 . Possible Cause .................................................... 152 .
Component Inspection ......................................... 127 . DTC Confirmation Procedure ............................... 152 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 128 Wiring Diagram -- AT -- FTS .............................. 153 .
Description ........................................................... 128
. Diagnostic Procedure ........................................... 154 .
On Board Diagnosis Logic ................................... 128 . Component Inspection ......................................... 157 .
Possible Cause .................................................... 128 . DTC P1716 TURBINE REVOLUTION SENSOR ... 158 .
DTC Confirmation Procedure .............................. 128 . Description ........................................................... 158
.
Wiring Diagram -- AT -- TCCSIG ....................... 129 . On Board Diagnosis Logic ................................... 158 .
Diagnostic Procedure .......................................... 130 . Possible Cause .................................................... 158 .
Component Inspection ......................................... 132 . DTC Confirmation Procedure ............................... 158 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 133 Wiring Diagram -- AT -- TRSA/T ........................ 159 .
Description ........................................................... 133
. Diagnostic Procedure ........................................... 160 .
On Board Diagnosis Logic ................................... 133 . DTC P1721 VEHICLE SPEED SENSOR MTR ...... 163 .
Possible Cause .................................................... 133 . Description ........................................................... 163
.
DTC Confirmation Procedure .............................. 133 . On Board Diagnosis Logic ................................... 163 .
Wiring Diagram -- AT -- LPSV ........................... 134 . Possible Cause .................................................... 163 .
Diagnostic Procedure .......................................... 135 . DTC Confirmation Procedure ............................... 163 .
Component Inspection ......................................... 137 . Diagnostic Procedure ........................................... 163 .
DTC P1701 TRANSMISSION CONTROL MODULE DTC P1730 A/T INTERLOCK ................................ 165 .
(POWER SUPPLY) ................................................. 138 . Description ........................................................... 165
.
Description ........................................................... 138
. On Board Diagnosis Logic ................................... 165 .
On Board Diagnosis Logic ................................... 138 . Possible Cause .................................................... 165 .
Possible Cause .................................................... 138 . DTC Confirmation Procedure ............................... 165 .
DTC Confirmation Procedure .............................. 138 . Wiring Diagram -- AT -- I/LOCK ......................... 166 .
Wiring Diagram -- AT -- POWER ....................... 139 . Judgement of A/T Interlock .................................. 170 .
Diagnostic Procedure .......................................... 141 . Diagnostic Procedure ........................................... 170 .
Component Inspection ......................................... 143 . DTC P1731 A/T 1ST ENGINE BRAKING .............. 172 .
DTC P1702 TRANSMISSION CONTROL MODULE Description ........................................................... 172
.
(RAM) ..................................................................... 144
. On Board Diagnosis Logic ................................... 172 .
Description ........................................................... 144
. Possible Cause .................................................... 172 .
On Board Diagnosis Logic ................................... 144 . DTC Confirmation Procedure ............................... 172 .
Possible Cause .................................................... 144 . Wiring Diagram -- AT -- E/BRE .......................... 173 .
DTC Confirmation Procedure .............................. 144 . Diagnostic Procedure ........................................... 174 .
Diagnostic Procedure .......................................... 145 . DTC P1752 INPUT CLUTCH SOLENOID VALVE . 176
AT-2
Description .......................................................... 176
. On Board Diagnosis Logic ................................... 209 .
On Board Diagnosis Logic .................................. 176 . Possible Cause .................................................... 209 . A
Possible Cause ................................................... 176
. DTC Confirmation Procedure .............................. 209 .
DTC Confirmation Procedure .............................. 176 . Wiring Diagram -- AT -- HLR/CF ....................... 210 .
Wiring Diagram -- AT -- I/C ............................... 177 . Diagnostic Procedure .......................................... 211 . B
Diagnostic Procedure .......................................... 178 . DTC P1772 LOW COAST BRAKE SOLENOID
Component Inspection ........................................ 180 . VALVE .................................................................... 214
.
DTC P1754 INPUT CLUTCH SOLENOID VALVE Description ........................................................... 214
.
FUNCTION ............................................................. 181
. On Board Diagnosis Logic ................................... 214 . AT
Description .......................................................... 181
. Possible Cause .................................................... 214 .
On Board Diagnosis Logic .................................. 181 . DTC Confirmation Procedure .............................. 214 .
Possible Cause ................................................... 181
. Wiring Diagram -- AT -- LC/B ............................ 215 . D
DTC Confirmation Procedure .............................. 181 . Diagnostic Procedure .......................................... 216 .
Wiring Diagram -- AT -- I/CF ............................. 182 . Component Inspection ......................................... 218 .
Diagnostic Procedure .......................................... 183 . DTC P1774 LOW COAST BRAKE SOLENOID E
DTC P1757 FRONT BRAKE SOLENOID VALVE . 185 VALVE FUNCTION ................................................. 219 .
Description .......................................................... 185
. Description ........................................................... 219
.
On Board Diagnosis Logic .................................. 185 . On Board Diagnosis Logic ................................... 219 .
Possible Cause ................................................... 185
. Possible Cause .................................................... 219 . F
DTC Confirmation Procedure .............................. 185 . DTC Confirmation Procedure .............................. 219 .
Wiring Diagram -- AT -- FR/B ............................ 186 . Wiring Diagram -- AT -- LC/BF .......................... 220 .
Diagnostic Procedure .......................................... 187 . Diagnostic Procedure .......................................... 221 . G
Component Inspection ........................................ 189 . DTC P1815 MANUAL MODE SWITCH ................. 223 .
DTC P1759 FRONT BRAKE SOLENOID VALVE Description ........................................................... 223
.
FUNCTION ............................................................. 190
. CONSULT-II Reference Value in Data Monitor Mode H
Description .......................................................... 190
. . 223
On Board Diagnosis Logic .................................. 190 . On Board Diagnosis Logic ................................... 223 .
Possible Cause ................................................... 190
. Possible Cause .................................................... 223 .
I
DTC Confirmation Procedure .............................. 190 . DTC Confirmation Procedure .............................. 223 .
Wiring Diagram -- AT -- FR/BF .......................... 191 . Wiring Diagram -- AT -- MMSW ........................ 224 .
Diagnostic Procedure .......................................... 192 . Diagnostic Procedure .......................................... 225 .
DTC P1762 DIRECT CLUTCH SOLENOID VALVE 195 . Component Inspection ......................................... 226 . J
Description .......................................................... 195
. Position Indicator Lamp ....................................... 226 .
On Board Diagnosis Logic .................................. 195 . DTC P1841 ATF PRESSURE SWITCH 1 .............. 227 .
Possible Cause ................................................... 195
. Description ........................................................... 227
. K
DTC Confirmation Procedure .............................. 195 . On Board Diagnosis Logic ................................... 227 .
Wiring Diagram -- AT -- D/C .............................. 196 . Possible Cause .................................................... 227 .
Diagnostic Procedure .......................................... 197 . DTC Confirmation Procedure .............................. 227 . L
Component Inspection ........................................ 199 . Wiring Diagram -- AT -- FPSW1 ........................ 228 .
DTC P1764 DIRECT CLUTCH SOLENOID VALVE Diagnostic Procedure .......................................... 229 .
FUNCTION ............................................................. 200
. DTC P1843 ATF PRESSURE SWITCH 3 .............. 231 .
Description .......................................................... 200
. Description ........................................................... 231
. M
On Board Diagnosis Logic .................................. 200 . On Board Diagnosis Logic ................................... 231 .
Possible Cause ................................................... 200
. Possible Cause .................................................... 231 .
DTC Confirmation Procedure .............................. 200 . DTC Confirmation Procedure .............................. 231 .
Wiring Diagram -- AT -- D/CF ............................ 201 . Wiring Diagram -- AT -- FPSW3 ........................ 232 .
Diagnostic Procedure .......................................... 202 . Diagnostic Procedure .......................................... 233 .
DTC P1767 HIGH AND LOW REVERSE CLUTCH DTC P1845 ATF PRESSURE SWITCH 5 .............. 235 .
SOLENOID VALVE ................................................ 204 . Description ........................................................... 235
.
Description .......................................................... 204
. On Board Diagnosis Logic ................................... 235 .
On Board Diagnosis Logic .................................. 204 . Possible Cause .................................................... 235 .
Possible Cause ................................................... 204
. DTC Confirmation Procedure .............................. 235 .
DTC Confirmation Procedure .............................. 204 . Wiring Diagram -- AT -- FPSW5 ........................ 236 .
Wiring Diagram -- AT -- HLR/C ......................... 205 . Diagnostic Procedure .......................................... 237 .
Diagnostic Procedure .......................................... 206 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 239 .
Component Inspection ........................................ 208 . Description ........................................................... 239
.
DTC P1769 HIGH AND LOW REVERSE CLUTCH On Board Diagnosis Logic ................................... 239 .
SOLENOID VALVE FUNCTION ............................ 209 . Possible Cause .................................................... 239 .
Description .......................................................... 209
. DTC Confirmation Procedure .............................. 239 .
AT-3
Wiring Diagram -- AT -- FPSW6 ........................ 240 . ON-VEHICLE SERVICE ......................................... 301 .
Diagnostic Procedure .......................................... 241 . Control Valve Assembly ....................................... 301 .
PARK/NEUTRAL POSITION, MANUAL MODE, Rear Oil Seal ........................................................ 308
.
BRAKE AND THROTTLE POSITION SWITCH CIR- Parking Components ........................................... 309 .
CUIT ....................................................................... 243
. AIR BREATHER HOSE .......................................... 315 .
Diagnostic Procedure .......................................... 243 . Removal and Installation ...................................... 315 .
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 245 . TRANSMISSION ASSEMBLY ................................ 316 .
Wiring Diagram -- AT -- NONDTC ..................... 245 . Removal and Installation ...................................... 316 .
A/T CHECK Indicator Lamp Does Not Come On . 247 OVERHAUL ............................................................ 319
.
Engine Cannot Be Started In "P" or "N" Position . 249 Components ......................................................... 319
.
In "P" Position, Vehicle Moves When Pushed ..... 250 . Oil Channel .......................................................... 325
.
In "N" Position, Vehicle Moves ............................. 251 . Locations of Adjusting Shims, Needle Bearings,
Large Shock ("N" to "D" Position) ........................ 252 . Thrust Washers and Snap Rings ......................... 326 .
Vehicle Does Not Creep Backward In "R" Position. 255 DISASSEMBLY ...................................................... 327 .
Vehicle Does Not Creep Forward In "D" Position . 258 Disassembly ......................................................... 327
.
Vehicle Cannot Be Started From D1 .................... 261 . REPAIR FOR COMPONENT PARTS ..................... 341 .
A/T Does Not Shift: D1 D2 ............................... 263 . Oil Pump .............................................................. 341
.
A/T Does Not Shift: D2 D3 ............................... 265 . Front Sun Gear, 3rd One-Way Clutch .................. 344 .
A/T Does Not Shift: D3 D4 ............................... 268 . Front Carrier, Input Clutch, Rear Internal Gear .... 346 .
A/T Does Not Shift: D4 D5 ............................... 270 . Mid Sun Gear, Rear Sun Gear, High and Low
A/T Does Not Perform Lock-up ........................... 273 . Reverse Clutch Hub ............................................. 351 .
A/T Does Not Hold Lock-up Condition ................. 275 . High and Low Reverse Clutch ............................. 356 .
Lock-up Is Not Released ..................................... 276 . Direct Clutch ........................................................ 358
.
Engine Speed Does Not Return To Idle ............... 277 . ASSEMBLY ............................................................ 360
.
Cannot Be Changed to Manual Mode ................. 278 . Assembly (1) ........................................................ 360
.
A/T Does Not Shift: 5th gear 4th gear ............. 279 . Adjustment ........................................................... 371
.
A/T Does Not Shift: 4th gear 3rd gear ............. 281 . Assembly (2) ........................................................ 373
.
A/T Does Not Shift: 3rd gear 2nd gear ............ 283 . SERVICE DATA AND SPECIFICATIONS (SDS) ... 379 .
A/T Does Not Shift: 2nd gear 1st gear ............ 285 . General Specifications ......................................... 379 .
Vehicle Does Not Decelerate By Engine Brake ... 287 . Vehicle Speed When Shifting Gears .................... 379 .
SHIFT CONTROL SYSTEM ................................... 289 . Vehicle Speed When Performing and Releasing
Control Device Removal and Installation ............. 289 . Complete Lock-up ................................................ 379 .
Adjustment of A/T Position .................................. 290 . Vehicle Speed When Performing and Releasing
Checking of A/T Position ..................................... 290 . Slip Lock-up ......................................................... 379
.
A/T SHIFT LOCK SYSTEM .................................... 292 . Stall Speed ........................................................... 379
.
Description ........................................................... 292
. Line Pressure ....................................................... 380
.
Shift Lock System Electrical Parts Location ........ 292 . Solenoid Valves ................................................... 380
.
Wiring Diagram -- AT -- SHIFT .......................... 293 . A/T Fluid Temperature Sensor ............................. 380 .
Diagnostic Procedure .......................................... 294 . Turbine Revolution Sensor ................................... 380 .
KEY INTERLOCK CABLE ..................................... 298 . Vehicle Speed Sensor A/T (Revolution Sensor) .. 380 .
Components ........................................................ 298 . Reverse Brake ..................................................... 381
.
Removal .............................................................. 299. Total End Play ...................................................... 381
.
Installation ............................................................ 300
.
AT-4
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index ACS002AD
NOTE:
If DTC U1000 is displayed with other DTCs, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-104 .
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-172 D
ATF PRES SW 1/CIRC -- P1841 AT-227
ATF PRES SW 3/CIRC -- P1843 AT-231
E
ATF PRES SW 5/CIRC -- P1845 AT-235
ATF PRES SW 6/CIRC -- P1846 AT-239
A/T INTERLOCK P1730 P1730 AT-165 F
A/T TCC S/V FNCTN P0744 P0744 AT-128
ATF TEMP SEN/CIRC P0710 P1710 AT-152
G
CAN COMM CIRCUIT U1000 U1000 AT-104
D/C SOLENOID/CIRC P1762 P1762 AT-195
D/C SOLENOID FNCTN P1764 P1764 AT-200 H
ENGINE SPEED SIG P0725 P0725 AT-121
FR/B SOLENOID/CIRC P1757 P1757 AT-185
I
FR/B SOLENOID FNCT P1759 P1759 AT-190
HLR/C SOL/CIRC P1767 P1767 AT-204
HLR/C SOL FNCTN P1769 P1769 AT-209 J
I/C SOLENOID/CIRC P1752 P1752 AT-176
I/C SOLENOID FNCTN P1754 P1754 AT-181
L/PRESS SOL/CIRC P0745 P0745 AT-133 K
LC/B SOLENOID/CIRC P1772 P1772 AT-214
LC/B SOLENOID FNCT P1774 P1774 AT-219
L
MANU MODE SW/CIR -- P1815 AT-223
PNP SW/CIRC P0705 P0705 AT-111
STARTER RELAY/CIRC -- P0615 AT-107 M
TCC SOLENOID/CIRC P0740 P0740 AT-123
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