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AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
A
AUTOMATIC TRANSMISSION
SECTION AT B
AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . How To Perform Trouble Diagnosis For Quick and F
Alphabetical Index ................................................... 5
. Accurate Repair ..................................................... 43
.
DTC No. Index ........................................................ 6
. A/T Electrical Parts Location ................................. 48 .
PRECAUTIONS ......................................................... 7 . Circuit Diagram ...................................................... 49
. G
Precautions for Supplemental Restraint System Inspections Before Trouble Diagnosis ................... 50 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Check Before Engine is Started ............................. 53 .
SIONER" ................................................................. 7
. Check at Idle .......................................................... 54
.
H
Precautions for Battery Service ............................... 7 . Cruise Test - Part 1 ................................................ 55
.
Precautions for On Board Diagnostic (OBD) System Cruise Test - Part 2 ................................................ 57
.
of A/T and Engine ................................................... 7. Cruise Test - Part 3 ................................................ 58
.
Precautions ............................................................. 8
. Vehicle Speed When Shifting Gears ..................... 60 . I
Service Notice or Precautions ................................. 8 . Vehicle Speed When Performing and Releasing
Wiring Diagrams and Trouble Diagnosis ................. 9 . Complete Lock-up ................................................. 60 .
PREPARATION ........................................................ 10 . Vehicle Speed When Performing and Releasing J
Special Service Tools ............................................ 10 . Slip Lock-up ........................................................... 60
.
Commercial Service Tools ......................................11 . Symptom Chart ...................................................... 61
.
A/T FLUID ................................................................ 12
. TCM Input/Output Signal Reference Values .......... 86 .
K
Changing A/T Fluid ............................................... 12 . CONSULT-II ........................................................... 87
.
Checking A/T Fluid ................................................ 12 . Diagnostic Procedure Without CONSULT-II .......... 99 .
A/T Fluid Cooler Cleaning ..................................... 14 . DTC U1000 CAN COMMUNICATION LINE ........... 101 .
A/T CONTROL SYSTEM ......................................... 17 . Description ........................................................... 101
. L
Cross-Sectional View ............................................ 17 . On Board Diagnosis Logic ................................... 101 .
Shift Mechanism .................................................... 18. Possible Cause .................................................... 101
.
TCM Function ........................................................ 29
. DTC Confirmation Procedure .............................. 101 . M
CAN Communication ............................................. 30 . Wiring Diagram -- AT -- CAN ............................. 102 .
Input/Output Signal of TCM ................................... 30 . Diagnostic Procedure .......................................... 103 .
Line Pressure Control ........................................... 31 . DTC P0615 START SIGNAL CIRCUIT .................. 104 .
Shift Control .......................................................... 32
. Description ........................................................... 104
.
Lock-up Control ..................................................... 33
. CONSULT-II Reference Value ............................. 104 .
Engine Brake Control ............................................ 35 . On Board Diagnosis Logic ................................... 104 .
Control Valve ......................................................... 35
. Possible Cause .................................................... 104
.
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 37 . DTC Confirmation Procedure .............................. 104 .
Introduction ........................................................... 37
. Wiring Diagram -- AT -- STSIG ......................... 105 .
OBD-II Function for A/T System ............................ 37 . Diagnostic Procedure .......................................... 106 .
One or Two Trip Detection Logic of OBD-II ........... 37 . DTC P0700 TCM .................................................... 108 .
OBD-II Diagnostic Trouble Code (DTC) ................ 37 . Description ........................................................... 108
.
Malfunction Indicator Lamp (MIL) .......................... 40 . On Board Diagnosis Logic ................................... 108 .
TROUBLE DIAGNOSIS ........................................... 41 . Possible Cause .................................................... 108
.
DTC Inspection Priority Chart ............................... 41 . DTC Confirmation Procedure .............................. 108 .
Fail-Safe ................................................................ 41
. Diagnostic Procedure .......................................... 108 .
AT-1
DTC P0705 PARK/NEUTRAL POSITION SWITCH. 109 DTC Confirmation Procedure ............................... 127 .
Description ........................................................... 109
. Diagnostic Procedure ........................................... 127 .
CONSULT-II Reference Value ............................. 109 . DTC P1705 THROTTLE POSITION SENSOR ....... 128 .
On Board Diagnosis Logic ................................... 109 . Description ........................................................... 128
.
Possible Cause .................................................... 109 . CONSULT-II Reference Value .............................. 128 .
DTC Confirmation Procedure .............................. 109 . On Board Diagnosis Logic ................................... 128 .
Wiring Diagram -- AT -- PNP/SW ...................... 110 . Possible Cause .................................................... 128.
Diagnostic Procedure ...........................................111 . DTC Confirmation Procedure ............................... 128 .
DTC P0720 VEHICLE SPEED SENSOR A/T (REV- Diagnostic Procedure ........................................... 129 .
OLUTION SENSOR) .............................................. 113 . DTC P1710 A/T FLUID TEMPERATURE SENSOR
Description ........................................................... 113
. CIRCUIT ................................................................. 131
.
CONSULT-II Reference Value ............................. 113 . Description ........................................................... 131
.
On Board Diagnosis Logic ................................... 113 . CONSULT-II Reference Value .............................. 131 .
Possible Cause .................................................... 113 . On Board Diagnosis Logic ................................... 131 .
DTC Confirmation Procedure .............................. 113 . Possible Cause .................................................... 131.
Wiring Diagram -- AT -- VSSA/T ........................ 115 . DTC Confirmation Procedure ............................... 131 .
Diagnostic Procedure .......................................... 116 . Wiring Diagram -- AT -- FTS .............................. 132 .
DTC P0725 ENGINE SPEED SIGNAL .................. 118 . Diagnostic Procedure ........................................... 133 .
Description ........................................................... 118
. Component Inspection ......................................... 135 .
CONSULT-II Reference Value ............................. 118 . DTC P1716 TURBINE REVOLUTION SENSOR ... 136 .
On Board Diagnosis Logic ................................... 118 . Description ........................................................... 136
.
Possible Cause .................................................... 118 . CONSULT-II Reference Value .............................. 136 .
DTC Confirmation Procedure .............................. 118 . On Board Diagnosis Logic ................................... 136 .
Diagnostic Procedure .......................................... 118 . Possible Cause .................................................... 136.
DTC P0740 TORQUE CONVERTER CLUTCH DTC Confirmation Procedure ............................... 136 .
SOLENOID VALVE ................................................ 120 . Diagnostic Procedure ........................................... 137 .
Description ........................................................... 120
. DTC P1721 VEHICLE SPEED SENSOR MTR ...... 138 .
CONSULT-II Reference Value ............................. 120 . Description ........................................................... 138
.
On Board Diagnosis Logic ................................... 120 . CONSULT-II Reference Value .............................. 138 .
Possible Cause .................................................... 120 . On Board Diagnosis Logic ................................... 138 .
DTC Confirmation Procedure .............................. 120 . Possible Cause .................................................... 138.
Diagnostic Procedure .......................................... 121 . DTC Confirmation Procedure ............................... 138 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP). 122 Diagnostic Procedure ........................................... 139 .
Description ........................................................... 122
. DTC P1730 A/T INTERLOCK ................................ 140 .
CONSULT-II Reference Value ............................. 122 . Description ........................................................... 140
.
On Board Diagnosis Logic ................................... 122 . On Board Diagnosis Logic ................................... 140 .
Possible Cause .................................................... 122 . Possible Cause .................................................... 140.
DTC Confirmation Procedure .............................. 122 . DTC Confirmation Procedure ............................... 140 .
Diagnostic Procedure .......................................... 123 . Judgement of A/T Interlock .................................. 140 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 124 Diagnostic Procedure ........................................... 141 .
Description ........................................................... 124
. DTC P1731 A/T 1ST ENGINE BRAKING .............. 143 .
CONSULT-II Reference Value ............................. 124 . Description ........................................................... 143
.
On Board Diagnosis Logic ................................... 124 . CONSULT-II Reference Value .............................. 143 .
Possible Cause .................................................... 124 . On Board Diagnosis Logic ................................... 143 .
DTC Confirmation Procedure .............................. 124 . Possible Cause .................................................... 143.
Diagnostic Procedure .......................................... 125 . DTC Confirmation Procedure ............................... 143 .
DTC P1702 TRANSMISSION CONTROL MODULE Diagnostic Procedure ........................................... 144 .
(RAM) ..................................................................... 126
. DTC P1752 INPUT CLUTCH SOLENOID VALVE . 145
Description ........................................................... 126
. Description ........................................................... 145
.
On Board Diagnosis Logic ................................... 126 . CONSULT-II Reference Value .............................. 145 .
Possible Cause .................................................... 126 . On Board Diagnosis Logic ................................... 145 .
DTC Confirmation Procedure .............................. 126 . Possible Cause .................................................... 145.
Diagnostic Procedure .......................................... 126 . DTC Confirmation Procedure ............................... 145 .
DTC P1703 TRANSMISSION CONTROL MODULE Diagnostic Procedure ........................................... 146 .
(ROM) ..................................................................... 127
. DTC P1754 INPUT CLUTCH SOLENOID VALVE
Description ........................................................... 127
. FUNCTION ............................................................. 147
.
On Board Diagnosis Logic ................................... 127 . Description ........................................................... 147
.
Possible Cause .................................................... 127 . CONSULT-II Reference Value .............................. 147 .
On Board Diagnosis Logic ................................... 147 .
AT-2
Possible Cause ................................................... 147 . Description ........................................................... 163
.
DTC Confirmation Procedure .............................. 147 . CONSULT-II Reference Value ............................. 163 . A
Diagnostic Procedure .......................................... 148 . On Board Diagnosis Logic ................................... 163 .
DTC P1757 FRONT BRAKE SOLENOID VALVE . 149 Possible Cause .................................................... 163
.
Description .......................................................... 149
. DTC Confirmation Procedure .............................. 163 . B
CONSULT-II Reference Value ............................. 149 . Diagnostic Procedure .......................................... 164 .
On Board Diagnosis Logic .................................. 149 . DTC P1815 MANUAL MODE SWITCH ................. 165 .
Possible Cause ................................................... 149 . Description ........................................................... 165
.
DTC Confirmation Procedure .............................. 149 . CONSULT-II Reference Value in Data Monitor Mode AT
Diagnostic Procedure .......................................... 150 . . 165
DTC P1759 FRONT BRAKE SOLENOID VALVE On Board Diagnosis Logic ................................... 165 .
FUNCTION ............................................................. 151
. Possible Cause .................................................... 165
. D
Description .......................................................... 151
. DTC Confirmation Procedure .............................. 165 .
CONSULT-II Reference Value ............................. 151 . Wiring Diagram -- AT -- MMSW ........................ 166 .
On Board Diagnosis Logic .................................. 151 . Diagnostic Procedure .......................................... 167 . E
Possible Cause ................................................... 151 . Component Inspection ......................................... 168 .
DTC Confirmation Procedure .............................. 151 . A/T Position Indicator .......................................... 168 .
Diagnostic Procedure .......................................... 152 . DTC P1841 ATF PRESSURE SWITCH 1 .............. 170 .
DTC P1762 DIRECT CLUTCH SOLENOID VALVE 153 . Description ........................................................... 170
. F
Description .......................................................... 153
. CONSULT-II Reference Value ............................. 170 .
CONSULT-II Reference Value ............................. 153 . On Board Diagnosis Logic ................................... 170 .
On Board Diagnosis Logic .................................. 153 . Possible Cause .................................................... 170
. G
Possible Cause ................................................... 153 . DTC Confirmation Procedure .............................. 170 .
DTC Confirmation Procedure .............................. 153 . Diagnostic Procedure .......................................... 171 .
Diagnostic Procedure .......................................... 154 . DTC P1843 ATF PRESSURE SWITCH 3 .............. 172 . H
DTC P1764 DIRECT CLUTCH SOLENOID VALVE Description ........................................................... 172
.
FUNCTION ............................................................. 155
. CONSULT-II Reference Value ............................. 172 .
Description .......................................................... 155
. On Board Diagnosis Logic ................................... 172 .
I
CONSULT-II Reference Value ............................. 155 . Possible Cause .................................................... 172
.
On Board Diagnosis Logic .................................. 155 . DTC Confirmation Procedure .............................. 172 .
Possible Cause ................................................... 155 . Diagnostic Procedure .......................................... 173 .
DTC Confirmation Procedure .............................. 155 . DTC P1845 ATF PRESSURE SWITCH 5 .............. 174 . J
Diagnostic Procedure .......................................... 156 . Description ........................................................... 174
.
DTC P1767 HIGH AND LOW REVERSE CLUTCH CONSULT-II Reference Value ............................. 174 .
SOLENOID VALVE ................................................ 157 . On Board Diagnosis Logic ................................... 174 . K
Description .......................................................... 157
. Possible Cause .................................................... 174
.
CONSULT-II Reference Value ............................. 157 . DTC Confirmation Procedure .............................. 174 .
On Board Diagnosis Logic .................................. 157 . Diagnostic Procedure .......................................... 175 . L
Possible Cause ................................................... 157 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 176 .
DTC Confirmation Procedure .............................. 157 . Description ........................................................... 176
.
Diagnostic Procedure .......................................... 158 . CONSULT-II Reference Value ............................. 176 .
DTC P1769 HIGH AND LOW REVERSE CLUTCH On Board Diagnosis Logic ................................... 176 . M
SOLENOID VALVE FUNCTION ............................ 159 . Possible Cause .................................................... 176
.
Description .......................................................... 159
. DTC Confirmation Procedure .............................. 176 .
CONSULT-II Reference Value ............................. 159 . Diagnostic Procedure .......................................... 177 .
On Board Diagnosis Logic .................................. 159 . MAIN POWER SUPPLY AND GROUND CIRCUIT. 178
Possible Cause ................................................... 159 . Wiring Diagram -- AT -- MAIN ........................... 178 .
DTC Confirmation Procedure .............................. 159 . Diagnostic Procedure .......................................... 179 .
Diagnostic Procedure .......................................... 160 . CLOSED THROTTLE POSITION AND WIDE OPEN
DTC P1772 LOW COAST BRAKE SOLENOID THROTTLE POSITION CIRCUIT ........................... 182 .
VALVE .................................................................... 161
. CONSULT-II Reference Value ............................. 182 .
Description .......................................................... 161
. Diagnostic Procedure .......................................... 182 .
CONSULT-II Reference Value ............................. 161 . BRAKE SIGNAL CIRCUIT ..................................... 183 .
On Board Diagnosis Logic .................................. 161 . CONSULT-II Reference Value ............................. 183 .
Possible Cause ................................................... 161 . Diagnostic Procedure .......................................... 183 .
DTC Confirmation Procedure .............................. 161 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 184 .
Diagnostic Procedure .......................................... 162 . Wiring Diagram -- AT -- NONDTC ..................... 184 .
DTC P1774 LOW COAST BRAKE SOLENOID A/T CHECK Indicator Lamp Does Not Come On . 186
VALVE FUNCTION ................................................ 163 . Engine Cannot Be Started In "P" or "N" Position . 186
AT-3
In "P" Position, Vehicle Moves When Pushed ..... 187 . Rear Oil Seal ........................................................ 255
.
In "N" Position, Vehicle Moves ............................. 188 . Revolution Sensor ................................................ 256.
Large Shock ("N" to "D" Position) ........................ 189 . AIR BREATHER HOSE .......................................... 261 .
Vehicle Does Not Creep Backward In "R" Position. 192 Removal and Installation ...................................... 261 .
Vehicle Does Not Creep Forward In "D" Position . 195 TRANSMISSION ASSEMBLY ................................ 262 .
Vehicle Cannot Be Started From D1 .................... 197 . Removal and Installation ...................................... 262 .
A/T Does Not Shift: D1 D2 ............................... 200 . OVERHAUL ............................................................ 265
.
A/T Does Not Shift: D2 D3 ............................... 202 . Components ......................................................... 265
.
A/T Does Not Shift: D3 D4 ............................... 204 . Oil Channel .......................................................... 271
.
A/T Does Not Shift: D4 D5 ............................... 207 . Locations of Adjusting Shims, Needle Bearings,
A/T Does Not Perform Lock-up ........................... 209 . Thrust Washers and Snap Rings ......................... 272 .
A/T Does Not Hold Lock-up Condition ................. 211 . DISASSEMBLY ...................................................... 273 .
Lock-up Is Not Released ..................................... 213 . Disassembly ......................................................... 273
.
Engine Speed Does Not Return To Idle ............... 214 . REPAIR FOR COMPONENT PARTS ..................... 288 .
Cannot Be Changed to Manual Mode ................. 215 . Oil Pump .............................................................. 288
.
A/T Does Not Shift: 5th gear 4th gear ............. 216 . Front Sun Gear, 3rd One-Way Clutch .................. 291 .
A/T Does Not Shift: 4th gear 3rd gear ............. 217 . Front Carrier, Input Clutch, Rear Internal Gear .... 293 .
A/T Does Not Shift: 3rd gear 2nd gear ............ 219 . Mid Sun Gear, Rear Sun Gear, High and Low
A/T Does Not Shift: 2nd gear 1st gear ............ 221 . Reverse Clutch Hub ............................................. 298 .
Vehicle Does Not Decelerate By Engine Brake ... 222 . High and Low Reverse Clutch ............................. 303 .
SHIFT CONTROL SYSTEM ................................... 225 . Direct Clutch ........................................................ 305
.
Control Device Removal and Installation ............. 225 . ASSEMBLY ............................................................ 307
.
Adjustment of A/T Position .................................. 226 . Assembly (1) ........................................................ 307
.
Checking of A/T Position ..................................... 226 . Adjustment ........................................................... 317
.
A/T SHIFT LOCK SYSTEM .................................... 228 . Assembly (2) ........................................................ 320
.
Description ........................................................... 228
. SERVICE DATA AND SPECIFICATIONS (SDS) ... 327 .
Shift Lock System Electrical Parts Location ........ 228 . General Specifications ......................................... 327 .
Wiring Diagram -- AT -- SHIFT .......................... 229 . Vehicle Speed When Shifting Gears .................... 327 .
A/T Device Inspection Table ................................ 230 . Vehicle Speed When Performing and Releasing
Diagnostic Procedure .......................................... 230 . Complete Lock-up ................................................ 327 .
KEY INTERLOCK CABLE ..................................... 234 . Vehicle Speed When Performing and Releasing
Components ........................................................ 234 . Slip Lock-up ......................................................... 327
.
Removal .............................................................. 235
. Stall Speed ........................................................... 327
.
Installation ............................................................ 236
. Line Pressure ....................................................... 328
.
ON-VEHICLE SERVICE ......................................... 237 . A/T Fluid Temperature Sensor ............................. 328 .
Control Valve with TCM and A/T Fluid Temperature Turbine Revolution Sensor ................................... 328 .
Sensor 2 .............................................................. 237
. Vehicle Speed Sensor A/T (Revolution Sensor) .. 328 .
Parking Components ........................................... 249 . Reverse Brake ..................................................... 328
.
Total End Play ...................................................... 328
.
AT-4
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index ACS005G7
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-101 .
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-143 D
ATF PRES SW 1/CIRC -- P1841 AT-170
ATF PRES SW 3/CIRC -- P1843 AT-172
E
ATF PRES SW 5/CIRC -- P1845 AT-174
ATF PRES SW 6/CIRC -- P1846 AT-176
A/T INTERLOCK P1730 P1730 AT-140 F
A/T TCC S/V FNCTN P0744 P0744 AT-122
ATF TEMP SEN/CIRC P0710 P1710 AT-131
G
CAN COMM CIRCUIT U1000 U1000 AT-101
D/C SOLENOID/CIRC P1762 P1762 AT-153
D/C SOLENOID FNCTN P1764 P1764 AT-155 H
ENGINE SPEED SIG P0725 P0725 AT-118
FR/B SOLENOID/CIRC P1757 P1757 AT-149
I
FR/B SOLENOID FNCT P1759 P1759 AT-151
HLR/C SOL/CIRC P1767 P1767 AT-157
HLR/C SOL FNCTN P1769 P1769 AT-159 J
I/C SOLENOID/CIRC P1752 P1752 AT-145
I/C SOLENOID FNCTN P1754 P1754 AT-147
L/PRESS SOL/CIRC P0745 P0745 AT-124 K
LC/B SOLENOID/CIRC P1772 P1772 AT-161
LC/B SOLENOID FNCT P1774 P1774 AT-163
L
MANU MODE SW/CIR -- P1815 AT-165
PNP SW/CIRC P0705 P0705 AT-109
STARTER RELAY/CIRC -- P0615 AT-104 M
TCC SOLENOID/CIRC P0740 P0740 AT-120
TCM P0700 P0700 AT-108
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