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AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
A
B
SECTION
AUTOMATIC TRANSMISSION AT
D
E
CONTENTS
INDEX FOR DTC ....................................................... 5 . Accurate Repair ..................................................... 41
. F
Alphabetical Index ................................................... 5
. A/T Electrical Parts Location ................................. 46 .
DTC No. Index ........................................................ 6
. Circuit Diagram ...................................................... 47
.
PRECAUTIONS ......................................................... 7 . Wiring Diagram -- AT -- ....................................... 48 . G
Precautions for Supplemental Restraint System Inspections Before Trouble Diagnosis ................... 54 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Check Before Engine is Started ............................. 58 .
SIONER" ................................................................. 7
. Check at Idle .......................................................... 58
.
H
Precautions for Battery Service ............................... 7 . Cruise Test - Part 1 ................................................ 60
.
Precautions for On Board Diagnostic (OBD) System Cruise Test - Part 2 ................................................ 62
.
of A/T and Engine ................................................... 7. Cruise Test - Part 3 ................................................ 63
.
Precautions ............................................................. 7
. Vehicle Speed When Shifting Gears ..................... 63 . I
Service Notice or Precautions ................................. 8 . Vehicle Speed When Performing and Releasing
Wiring Diagrams and Trouble Diagnosis ................. 9 . Complete Lock-up ................................................. 63 .
PREPARATION ........................................................ 10 . Vehicle Speed When Performing and Releasing J
Special Service Tools ............................................ 10 . Slip Lock-up ........................................................... 63
.
Commercial Service Tools ..................................... 10 . Symptom Chart ...................................................... 64
.
A/T FLUID .................................................................11
. TCM Input/Output Signal Reference Values .......... 72 .
K
Changing A/T Fluid ................................................11 . CONSULT-II ........................................................... 73
.
Checking A/T Fluid .................................................11 . Diagnostic Procedure Without CONSULT-II .......... 84 .
A/T CONTROL SYSTEM ......................................... 13 . DTC U1000 CAN COMMUNICATION LINE ............. 86 .
Cross-Sectional View ............................................ 13 . Description ............................................................. 86
. L
Shift Mechanism .................................................... 14. On Board Diagnosis Logic ..................................... 86 .
TCM Function ........................................................ 25
. Possible Cause ...................................................... 86
.
CAN Communication ............................................. 26 . DTC Confirmation Procedure ................................ 86 . M
Input/Output Signal of TCM ................................... 28 . Diagnostic Procedure ............................................ 86 .
Line Pressure Control ........................................... 29 . DTC P0615 START SIGNAL CIRCUIT .................... 88 .
Shift Control .......................................................... 30
. Description ............................................................. 88
.
Lock-Up Control .................................................... 31. On Board Diagnosis Logic ..................................... 88 .
Engine Brake Control ............................................ 33 . Possible Cause ...................................................... 88
.
Control Valve ......................................................... 33
. DTC Confirmation Procedure ................................ 88 .
ON BOARD DIAGNOSTIC (OBD) SYSTEM ........... 35 . Diagnostic Procedure ............................................ 89 .
Introduction ........................................................... 35
. DTC P0705 PARK/NEUTRAL POSITION SWITCH... 91
OBD-II Function for A/T System ............................ 35 . Description ............................................................. 91
.
One or Two Trip Detection Logic of OBD-II ........... 35 . On Board Diagnosis Logic ..................................... 91 .
OBD-II Diagnostic Trouble Code (DTC) ................ 35 . Possible Cause ...................................................... 91
.
Malfunction Indicator Lamp (MIL) .......................... 38 . DTC Confirmation Procedure ................................ 91 .
TROUBLE DIAGNOSIS ........................................... 39 . Diagnostic Procedure ............................................ 91 .
DTC Inspection Priority Chart ............................... 39 . DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
Fail-Safe ................................................................ 39
. OLUTION SENSOR) ................................................ 93 .
How To Perform Trouble Diagnosis For Quick and Description ............................................................. 93
.
AT-1
On Board Diagnosis Logic ..................................... 93 . Description ........................................................... 108
.
Possible Cause ...................................................... 93. On Board Diagnosis Logic ................................... 108 .
DTC Confirmation Procedure ................................ 93 . Possible Cause .................................................... 108.
Diagnostic Procedure ............................................ 94 . DTC Confirmation Procedure ............................... 108 .
DTC P0725 ENGINE SPEED SIGNAL .................... 95 . Diagnostic Procedure ........................................... 108 .
Description ............................................................. 95
. DTC P1710 A/T FLUID TEMPERATURE SENSOR
On Board Diagnosis Logic ..................................... 95 . CIRCUIT ................................................................. 110
.
Possible Cause ...................................................... 95. Description ........................................................... 110
.
DTC Confirmation Procedure ................................ 95 . CONSULT-II Reference Value .............................. 110 .
Diagnostic Procedure ............................................ 95 . On Board Diagnosis Logic ................................... 110 .
DTC P0740 TORQUE CONVERTER CLUTCH Possible Cause .................................................... 110.
SOLENOID VALVE .................................................. 97 . DTC Confirmation Procedure ............................... 110 .
Description ............................................................. 97
. Diagnostic Procedure ........................................... 111 .
CONSULT-II Reference Value ............................... 97 . DTC P1716 TURBINE REVOLUTION SENSOR ... 112 .
On Board Diagnosis Logic ..................................... 97 . Description ........................................................... 112
.
Possible Cause ...................................................... 97. On Board Diagnosis Logic ................................... 112 .
DTC Confirmation Procedure ................................ 97 . Possible Cause .................................................... 112.
Diagnostic Procedure ............................................ 98 . DTC Confirmation Procedure ............................... 112 .
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)... 99 Diagnostic Procedure ........................................... 113 .
Description ............................................................. 99
. DTC P1721 VEHICLE SPEED SENSOR MTR ...... 114 .
On Board Diagnosis Logic ..................................... 99 . Description ........................................................... 114
.
Possible Cause ...................................................... 99. On Board Diagnosis Logic ................................... 114 .
DTC Confirmation Procedure ................................ 99 . Possible Cause .................................................... 114.
Diagnostic Procedure .......................................... 100 . DTC Confirmation Procedure ............................... 114 .
DTC P0745 LINE PRESSURE SOLENOID VALVE. 101 Diagnostic Procedure ........................................... 114 .
Description ........................................................... 101
. DTC P1730 A/T INTERLOCK ................................ 116 .
On Board Diagnosis Logic ................................... 101 . Description ........................................................... 116
.
Possible Cause .................................................... 101 . On Board Diagnosis Logic ................................... 116 .
DTC Confirmation Procedure .............................. 101 . Possible Cause .................................................... 116.
Diagnostic Procedure .......................................... 101 . DTC Confirmation Procedure ............................... 116 .
DTC P1701 TRANSMISSION CONTROL MODULE Judgement of A/T Interlock .................................. 116 .
(POWER SUPPLY) ................................................. 103 . Diagnostic Procedure ........................................... 118 .
Description ........................................................... 103
. DTC P1731 A/T 1ST ENGINE BRAKING .............. 119 .
On Board Diagnosis Logic ................................... 103 . Description ........................................................... 119
.
Possible Cause .................................................... 103 . On Board Diagnosis Logic ................................... 119 .
DTC Confirmation Procedure .............................. 103 . Possible Cause .................................................... 119.
Diagnostic Procedure .......................................... 103 . DTC Confirmation Procedure ............................... 119 .
DTC P1702 TRANSMISSION CONTROL MODULE Diagnostic Procedure ........................................... 119 .
(RAM) ..................................................................... 105
. DTC P1752 INPUT CLUTCH SOLENOID VALVE . 121
Description ........................................................... 105
. Description ........................................................... 121
.
On Board Diagnosis Logic ................................... 105 . On Board Diagnosis Logic ................................... 121 .
Possible Cause .................................................... 105 . Possible Cause .................................................... 121.
DTC Confirmation Procedure .............................. 105 . DTC Confirmation Procedure ............................... 121 .
Diagnostic Procedure .......................................... 105 . Diagnostic Procedure ........................................... 122 .
DTC P1703 TRANSMISSION CONTROL MODULE DTC P1754 INPUT CLUTCH SOLENOID VALVE
(ROM) ..................................................................... 106
. FUNCTION ............................................................. 123
.
Description ........................................................... 106
. Description ........................................................... 123
.
On Board Diagnosis Logic ................................... 106 . On Board Diagnosis Logic ................................... 123 .
Possible Cause .................................................... 106 . Possible Cause .................................................... 123.
DTC Confirmation Procedure .............................. 106 . DTC Confirmation Procedure ............................... 123 .
Diagnostic Procedure .......................................... 106 . Diagnostic Procedure ........................................... 124 .
DTC P1704 TRANSMISSION CONTROL MODULE DTC P1757 FRONT BRAKE SOLENOID VALVE .. 125 .
(EEPROM) .............................................................. 107
. Description ........................................................... 125
.
Description ........................................................... 107
. On Board Diagnosis Logic ................................... 125 .
On Board Diagnosis Logic ................................... 107 . Possible Cause .................................................... 125.
Possible Cause .................................................... 107 . DTC Confirmation Procedure ............................... 125 .
DTC Confirmation Procedure .............................. 107 . Diagnostic Procedure ........................................... 126 .
Diagnostic Procedure .......................................... 107 . DTC P1759 FRONT BRAKE SOLENOID VALVE
DTC P1705 THROTTLE POSITION SENSOR ...... 108 . FUNCTION ............................................................. 127
.
AT-2
Description .......................................................... 127
. Possible Cause .................................................... 144
.
On Board Diagnosis Logic .................................. 127 . DTC Confirmation Procedure .............................. 144 . A
Possible Cause ................................................... 127 . Diagnostic Procedure .......................................... 145 .
DTC Confirmation Procedure .............................. 127 . DTC P1843 ATF PRESSURE SWITCH 3 .............. 146 .
Diagnostic Procedure .......................................... 128 . Description ........................................................... 146
. B
DTC P1762 DIRECT CLUTCH SOLENOID VALVE 129 . On Board Diagnosis Logic ................................... 146 .
Description .......................................................... 129
. Possible Cause .................................................... 146
.
On Board Diagnosis Logic .................................. 129 . DTC Confirmation Procedure .............................. 146 .
Possible Cause ................................................... 129 . Diagnostic Procedure .......................................... 147 . AT
DTC Confirmation Procedure .............................. 129 . DTC P1845 ATF PRESSURE SWITCH 5 .............. 148 .
Diagnostic Procedure .......................................... 130 . Description ........................................................... 148
.
DTC P1764 DIRECT CLUTCH SOLENOID VALVE On Board Diagnosis Logic ................................... 148 . D
FUNCTION ............................................................. 131
. Possible Cause .................................................... 148
.
Description .......................................................... 131
. DTC Confirmation Procedure .............................. 148 .
On Board Diagnosis Logic .................................. 131 . Diagnostic Procedure .......................................... 149 . E
Possible Cause ................................................... 131 . DTC P1846 ATF PRESSURE SWITCH 6 .............. 150 .
DTC Confirmation Procedure .............................. 131 . Description ........................................................... 150
.
Diagnostic Procedure .......................................... 132 . On Board Diagnosis Logic ................................... 150 .
DTC P1767 HIGH AND LOW REVERSE CLUTCH Possible Cause .................................................... 150
. F
SOLENOID VALVE ................................................ 133 . DTC Confirmation Procedure .............................. 150 .
Description .......................................................... 133
. Diagnostic Procedure .......................................... 151 .
On Board Diagnosis Logic .................................. 133 . CLOSED THROTTLE POSITION AND WIDE OPEN G
Possible Cause ................................................... 133 . THROTTLE POSITION CIRCUIT ........................... 152 .
DTC Confirmation Procedure .............................. 133 . Diagnostic Procedure .......................................... 152 .
Diagnostic Procedure .......................................... 134 . BRAKE SIGNAL CIRCUIT ..................................... 153 . H
DTC P1769 HIGH AND LOW REVERSE CLUTCH Diagnostic Procedure .......................................... 153 .
SOLENOID VALVE FUNCTION ............................ 135 . TROUBLE DIAGNOSIS FOR SYMPTOMS ........... 154 .
Description .......................................................... 135
. A/T CHECK Indicator Lamp does not come on ... 154 .
I
On Board Diagnosis Logic .................................. 135 . Engine Cannot Be Started In "P" or "N" Position . 155
Possible Cause ................................................... 135 . In "P" Position, Vehicle Moves When Pushed ..... 156 .
DTC Confirmation Procedure .............................. 135 . In "N" Position, Vehicle Moves ............................. 156 .
Diagnostic Procedure .......................................... 136 . Large Shock ("N" to "D" Position) ........................ 157 . J
DTC P1772 LOW COAST BRAKE SOLENOID Vehicle Does Not Creep Backward In "R" Position 158 .
VALVE .................................................................... 137
. Vehicle Does Not Creep Forward In "D" Position . 159
Description .......................................................... 137
. Vehicle Cannot Be Started From D1 .................... 161 . K
On Board Diagnosis Logic .................................. 137 . A/T Does Not Shift: D1 D2 ............................... 162 .
Possible Cause ................................................... 137 . A/T Does Not Shift: D2 D3 ............................... 163 .
DTC Confirmation Procedure .............................. 137 . A/T Does Not Shift: D3 D4 ............................... 164 . L
Diagnostic Procedure .......................................... 138 . A/T Does Not Shift: D4 D5 ............................... 165 .
DTC P1774 LOW COAST BRAKE SOLENOID A/T Does Not Perform Lock-up ........................... 166 .
VALVE FUNCTION ................................................ 139 . A/T Does Not Hold Lock-up Condition ................. 167 .
Description .......................................................... 139
. Lock-up Is Not Released ..................................... 168 . M
On Board Diagnosis Logic .................................. 139 . Engine Speed Does Not Return To Idle ............... 169 .
Possible Cause ................................................... 139 . Cannot Be changed to Manual Mode .................. 170 .
DTC Confirmation Procedure .............................. 139 . A/T Does Not Shift: 5th gear 4th gear ............. 170 .
Diagnostic Procedure .......................................... 140 . A/T Does Not Shift: 4th gear 3rd gear ............. 171 .
DTC P1815 MANUAL MODE SWITCH ................. 141 . A/T Does Not Shift: 3rd gear 2nd gear ............ 172 .
Description .......................................................... 141
. A/T Does Not Shift: 2nd gear 1st gear ............ 173 .
CONSULT-II Reference Value in Data Monitor Mode Vehicle Does Not Decelerate By Engine Brake ... 174 .
. 141 SHIFT CONTROL SYSTEM ................................... 176 .
On Board Diagnosis Logic .................................. 141 . Control Device Removal and Installation ............. 176 .
Possible Cause ................................................... 141 . Adjustment of A/T Position .................................. 177 .
DTC Confirmation Procedure .............................. 141 . Checking of A/T Position ..................................... 177 .
Diagnostic Procedure .......................................... 141 . A/T SHIFT LOCK SYSTEM ................................... 179 .
Component Inspection ........................................ 143 . Description ........................................................... 179
.
Position Indicator Lamp ....................................... 143 . Shift Lock System Electrical Parts Location ........ 179 .
DTC P1841 ATF PRESSURE SWITCH 1 .............. 144 . Wiring Diagram -- AT -- SHIFT .......................... 180 .
Description .......................................................... 144
. Diagnostic Procedure .......................................... 181 .
On Board Diagnosis Logic .................................. 144 . KEY INTERLOCK CABLE ..................................... 184 .
AT-3
Components ........................................................ 184 . General Specifications ......................................... 191 .
Removal .............................................................. 185
. Vehicle Speed When Shifting Gears .................... 191 .
Installation ............................................................ 186
. Vehicle Speed When Performing and Releasing
AIR BREATHER HOSE .......................................... 187 . Complete Lock-up ................................................ 191 .
Removal and Installation ..................................... 187 . Vehicle Speed When Performing and Releasing
TRANSMISSION ASSEMBLY ............................... 188 . Slip Lock-up ......................................................... 191
.
Removal and Installation ..................................... 188 . Stall Speed ........................................................... 191
.
SERVICE DATA AND SPECIFICATIONS (SDS) ... 191 . Line Pressure ....................................................... 192
.
AT-4
INDEX FOR DTC
INDEX FOR DTC PFP:00024
A
Alphabetical Index ACS000GR
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to B
AT-86 .
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-119 D
ATF PRES SW 1/CIRC -- P1841 AT-144
ATF PRES SW 3/CIRC -- P1843 AT-146
E
ATF PRES SW 5/CIRC -- P1845 AT-148
ATF PRES SW 6/CIRC -- P1846 AT-150
A/T INTERLOCK P1730 P1730 AT-116 F
A/T TCC S/V FNCTN P0744 P0744 AT-99
ATF TEMP SEN/CIRC P0710 P1710 AT-110
G
CAN COMM CIRCUIT U1000 U1000 AT-86
D/C SOLENOID/CIRC P1762 P1762 AT-129
D/C SOLENOID FNCTN P1764 P1764 AT-131 H
ENGINE SPEED SIG P0725 P0725 AT-95
FR/B SOLENOID/CIRC P1757 P1757 AT-125
I
FR/B SOLENOID FNCT P1759 P1759 AT-127
HLR/C SOL/CIRC P1767 P1767 AT-133
HLR/C SOL FNCTN P1769 P1769 AT-135 J
I/C SOLENOID/CIRC P1752 P1752 AT-121
I/C SOLENOID FNCTN P1754 P1754 AT-123
L/PRESS SOL/CIRC P0745 P0745 AT-101 K
LC/B SOLENOID/CIRC P1772 P1772 AT-137
LC/B SOLENOID FNCT P1774 P1774 AT-139
L
MANU MODE SW/CIR -- P1815 AT-141
PNP SW/CIRC P0705 P0705 AT-91
STARTER RELAY/CIRC -- P0615 AT-88 M
TCC SOLENOID/CIRC P0740 P0740 AT-97
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