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TRANSMISSION & DRIVELINE
A
TRANSAXLE & TRANSMISSION
SECTION TM B
C
TM
E
CONTENTS
BASIC INSPECTION ................................... 6
. DTC U1000 CAN COMMUNICATION LINE ..... 45 F
Description ..............................................................45
.
DIAGNOSIS AND REPAIR WORKFLOW ......... 6
. On Board Diagnosis Logic ......................................45 .
How to Perform Trouble Diagnosis For Quick and Possible Cause .......................................................45
. G
Accurate Repair ....................................................... 6
. DTC Confirmation Procedure .................................45 .
Diagnostic Work Sheet ............................................. 7
. Diagnosis Procedure ..............................................45 .
FUNCTION DIAGNOSIS .............................. 9
. DTC P0615 START SIGNAL CIRCUIT ............. 46 H
Description ..............................................................46
.
A/T CONTROL SYSTEM .................................... 9
. CONSULT-III Reference Value in Data Monitor
Cross-Sectional View ............................................... 9
. Mode .......................................................................46
. I
Shift Mechanism ..................................................... 10
. On Board Diagnosis Logic ......................................46 .
TCM Function ......................................................... 21
. Possible Cause .......................................................46.
CAN Communication .............................................. 23 . DTC Confirmation Procedure .................................46 .
Input/Output Signal of TCM .................................... 24 . J
Diagnosis Procedure ..............................................46 .
Line Pressure Control ............................................ 24.
Shift Control ........................................................... 26
. DTC P0700 TCM ............................................... 49
Lock-up Control ...................................................... 27
. Description ..............................................................49
. K
Engine Brake Control ............................................. 28. On Board Diagnosis Logic ......................................49 .
Control Valve .......................................................... 28
. Possible Cause .......................................................49
.
A/T Electrical Parts Location .................................. 30 . DTC Confirmation Procedure .................................49 . L
Diagnosis Procedure ..............................................49 .
A/T SHIFT LOCK SYSTEM ...............................31
.
System Description (With Manual Mode) ............... 31 . DTC P0705 PARK/NEUTRAL POSITION
Shift Lock System Electrical Parts Location (With SWITCH ............................................................. 50 M
Manual Mode) ........................................................ 31
. Description ..............................................................50
.
System Description (W/O Manual Mode) ............... 31 . CONSULT-III Reference Value in Data Monitor
Shift Lock System Electrical Parts Location (W/O Mode .......................................................................50
. N
Manual Mode) ........................................................ 32
. On Board Diagnosis Logic ......................................50 .
Possible Cause .......................................................50.
ON BOARD DIAGNOSTIC (OBD) SYSTEM .....33
. DTC Confirmation Procedure .................................50 .
Introduction ............................................................ 33
. O
Diagnosis Procedure ..............................................50 .
OBD-II Function for A/T System ............................. 33 .
One or Two Trip Detection Logic of OBD-II ........... 33 . DTC P0717 TURBINE REVOLUTION SEN-
OBD-II Diagnostic Trouble Code (DTC) ................. 33 . SOR ................................................................... 52 P
Malfunction Indicator Lamp (MIL) ........................... 34 . Description ..............................................................52
.
CONSULT-III Reference Value in Data Monitor
DIAGNOSIS SYSTEM (TCM) ............................35
.
Mode .......................................................................52
.
CONSULT-III Function (TRANSMISSION) ............ 35
.
On Board Diagnosis Logic ......................................52 .
Diagnosis Procedure without CONSULT-III ........... 42
.
Possible Cause .......................................................52.
COMPONENT DIAGNOSIS ........................ 45
. DTC Confirmation Procedure .................................52 .
TM-1
Diagnosis Procedure ............................................. 52
. On Board Diagnosis Logic ..................................... 69 .
Possible Cause ...................................................... 69
.
DTC P0720 VEHICLE SPEED SENSOR A/T DTC Confirmation Procedure ................................. 69 .
(REVOLUTION SENSOR) ................................ 54
. Diagnosis Procedure .............................................. 69
.
Description ............................................................. 54
.
CONSULT-III Reference Value in Data Monitor DTC P0744 A/T TCC S/V FUNCTION (LOCK-
Mode ...................................................................... 54
. UP) .................................................................... 71
.
On Board Diagnosis Logic ..................................... 54 . Description ............................................................. 71
.
Possible Cause ...................................................... 54. CONSULT-III Reference Value in Data Monitor
DTC Confirmation Procedure ................................ 54 . Mode ...................................................................... 71
.
Diagnosis Procedure ............................................. 55 . On Board Diagnosis Logic ..................................... 71 .
Possible Cause ...................................................... 71.
DTC P0725 ENGINE SPEED SIGNAL ............. 57
. DTC Confirmation Procedure ................................. 71 .
Description ............................................................. 57
. Diagnosis Procedure .............................................. 71 .
CONSULT-III Reference Value in Data Monitor
Mode ...................................................................... 57
. DTC P0745 LINE PRESSURE SOLENOID
On Board Diagnosis Logic ..................................... 57 . VALVE .............................................................. 73
.
Possible Cause ...................................................... 57. Description ............................................................. 73
.
DTC Confirmation Procedure ................................ 57 . CONSULT-III Reference Value in Data Monitor
Diagnosis Procedure ............................................. 57 . Mode ...................................................................... 73
.
On Board Diagnosis Logic ..................................... 73 .
DTC P0731 A/T 1ST GEAR FUNCTION .......... 59
. Possible Cause ...................................................... 73.
Description ............................................................. 59
. DTC Confirmation Procedure ................................. 73 .
On Board Diagnosis Logic ..................................... 59 . Diagnosis Procedure .............................................. 73 .
Possible Cause ...................................................... 59
.
DTC Confirmation Procedure ................................ 59 . DTC P1705 THROTTLE POSITION SENSOR... 75
Diagnosis Procedure ............................................. 60 . Description ............................................................. 75
.
CONSULT-III Reference Value in Data Monitor
DTC P0732 A/T 2ND GEAR FUNCTION .......... 61
. Mode ...................................................................... 75
.
Description ............................................................. 61
. On Board Diagnosis Logic ..................................... 75 .
On Board Diagnosis Logic ..................................... 61 . Possible Cause ...................................................... 75.
Possible Cause ...................................................... 61
. DTC Confirmation Procedure ................................. 75 .
DTC Confirmation Procedure ................................ 61 . Diagnosis Procedure .............................................. 75 .
Diagnosis Procedure ............................................. 62 .
DTC P1710 A/T FLUID TEMPERATURE SEN-
DTC P0733 A/T 3RD GEAR FUNCTION .......... 63
. SOR CIRCUIT ................................................... 77
.
Description ............................................................. 63
. Description ............................................................. 77
.
On Board Diagnosis Logic ..................................... 63 .
CONSULT-III Reference Value in Data Monitor
Possible Cause ...................................................... 63
. Mode ...................................................................... 77
.
DTC Confirmation Procedure ................................ 63 .
On Board Diagnosis Logic ..................................... 77 .
Diagnosis Procedure ............................................. 64 . Possible Cause ...................................................... 77.
DTC P0734 A/T 4TH GEAR FUNCTION .......... 65
. DTC Confirmation Procedure ................................. 77 .
Description ............................................................. 65
. Diagnosis Procedure .............................................. 77 .
On Board Diagnosis Logic ..................................... 65 . Component Inspection ........................................... 79 .
Possible Cause ...................................................... 65
. DTC P1721 VEHICLE SPEED SENSOR MTR... 80
DTC Confirmation Procedure ................................ 65 .
Description ............................................................. 80
.
Diagnosis Procedure ............................................. 66 .
CONSULT-III Reference Value in Data Monitor
DTC P0735 A/T 5TH GEAR FUNCTION .......... 67
. Mode ...................................................................... 80
.
Description ............................................................. 67
. On Board Diagnosis Logic ..................................... 80 .
On Board Diagnosis Logic ..................................... 67 . Possible Cause ...................................................... 80.
Possible Cause ...................................................... 67
. DTC Confirmation Procedure ................................. 80 .
DTC Confirmation Procedure ................................ 67 . Diagnosis Procedure .............................................. 80 .
Diagnosis Procedure ............................................. 68 . DTC P1730 A/T INTERLOCK ........................... 82
.
DTC P0740 TORQUE CONVERTER CLUTCH Description ............................................................. 82
.
SOLENOID VALVE ........................................... 69
. On Board Diagnosis Logic ..................................... 82 .
Possible Cause ...................................................... 82
.
Description ............................................................. 69
.
DTC Confirmation Procedure ................................. 82 .
CONSULT-III Reference Value in Data Monitor
Judgement of A/T Interlock .................................... 82 .
Mode ...................................................................... 69
.
TM-2
Diagnosis Procedure .............................................. 83
. DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION ........................................... 96 A
DTC P1731 A/T 1ST ENGINE BRAKING .........84
. Description ..............................................................96
.
Description ............................................................. 84
.
CONSULT-III Reference Value in Data Monitor
CONSULT-III Reference Value in Data Monitor Mode .......................................................................96
.
Mode ...................................................................... 84
. B
On Board Diagnosis Logic ......................................96 .
On Board Diagnosis Logic ..................................... 84 .
Possible Cause .......................................................96.
Possible Cause ...................................................... 84
.
DTC Confirmation Procedure .................................96 .
DTC Confirmation Procedure ................................. 84 . C
Diagnosis Procedure ..............................................97 .
Diagnosis Procedure .............................................. 84 .
DTC P1815 MANUAL MODE SWITCH ............ 98
DTC P1752 INPUT CLUTCH SOLENOID Description ..............................................................98
. TM
VALVE ...............................................................86
. CONSULT-III Reference Value in Data Monitor
Description ............................................................. 86
. Mode .......................................................................98
.
CONSULT-III Reference Value in Data Monitor On Board Diagnosis Logic ......................................98 .
Mode ...................................................................... 86
. E
Possible Cause .......................................................98.
On Board Diagnosis Logic ..................................... 86 . DTC Confirmation Procedure .................................98 .
Possible Cause ...................................................... 86
. Diagnosis Procedure ..............................................98 .
DTC Confirmation Procedure ................................. 86 . Component Inspection .......................................... 100 . F
Diagnosis Procedure .............................................. 86 .
MAIN POWER SUPPLY AND GROUND CIR-
DTC P1757 FRONT BRAKE SOLENOID CUIT ................................................................ 101 G
VALVE ...............................................................88
. Diagnosis Procedure ............................................ 101
.
Description ............................................................. 88
.
CONSULT-III Reference Value in Data Monitor CLOSED THROTTLE POSITION AND WIDE
Mode ...................................................................... 88
. OPEN THROTTLE POSITION CIRCUIT ......... 104 H
On Board Diagnosis Logic ..................................... 88 . CONSULT-III Reference Value in Data Monitor
Possible Cause ...................................................... 88
. Mode ..................................................................... 104
.
DTC Confirmation Procedure ................................. 88 . Diagnosis Procedure ............................................ 104 . I
Diagnosis Procedure .............................................. 88 .
BRAKE SIGNAL CIRCUIT .............................. 105
DTC P1762 DIRECT CLUTCH SOLENOID CONSULT-III Reference Value in Data Monitor
VALVE ...............................................................90
. J
Mode ..................................................................... 105
.
Description ............................................................. 90
. Diagnosis Procedure ............................................ 105 .
CONSULT-III Reference Value in Data Monitor
Mode ...................................................................... 90
. A/T SHIFT LOCK SYSTEM ............................. 106 K
On Board Diagnosis Logic ..................................... 90 . Terminals And Reference Values ......................... 106 .
Possible Cause ...................................................... 90
. Wiring Diagram - A/T - SHIFT .............................. 107
.
DTC Confirmation Procedure ................................. 90 . Diagnosis Procedure ............................................ 108
. L
Diagnosis Procedure .............................................. 90 .
OVERDRIVE CONTROL SWITCH .................. 111
DTC P1767 HIGH AND LOW REVERSE CONSULT-III Reference Value in Data Monitor
CLUTCH SOLENOID VALVE ...........................92
. Mode ..................................................................... 111
. M
Description ............................................................. 92
. Diagnosis Procedure ............................................ 111 .
CONSULT-III Reference Value in Data Monitor
Mode ...................................................................... 92
.
ECU DIAGNOSIS ...................................... 113
. N
On Board Diagnosis Logic ..................................... 92 . TCM ................................................................. 113
Possible Cause ...................................................... 92
. TCM Terminals and Reference Values ................ 113 .
DTC Confirmation Procedure ................................. 92 . Wiring Diagram A/T Control System ..................... 114 . O
Diagnosis Procedure .............................................. 92 . Fail-Safe ............................................................... 121
.
DTC P1772 LOW COAST BRAKE SOLENOID DTC Inspection Priority Chart ............................... 123 .
DTC No. Index ...................................................... 123
. P
VALVE ...............................................................94
.
Alphabetical Index ................................................ 124.
Description ............................................................. 94
.
CONSULT-III Reference Value in Data Monitor SYMPTOM DIAGNOSIS ........................... 126
.
Mode ...................................................................... 94
.
On Board Diagnosis Logic ..................................... 94 . SYSTEM SYMPTOM ....................................... 126
Possible Cause ...................................................... 94
. A/T Check Indicator Lamp Does Not Come On
DTC Confirmation Procedure ................................. 94 . (With Manual Mode) ............................................. 126
.
Diagnosis Procedure .............................................. 94 .
TM-3
O/D OFF Indicator Lamp Does Not Come On Cruise Test - Part 3 .............................................. 194
.
(Without Manual Mode) ........................................126.
Engine Cannot Be Started in "P" or "N" Position ..127 ON-VEHICLE REPAIR .............................. 195
In "P" Position, Vehicle Moves When Pushed ......127 .
In "N" Position, Vehicle Moves .............................128 .
SHIFT CONTROL SYSTEM ............................ 195
.
Exploded view ...................................................... 195
.
Large Shock ("N" to "D" Position) .........................128 .
Removal and Installation ...................................... 195.
Vehicle Does Not Creep Backward in "R" Position..130
Inspection and Adjustment ................................... 196 .
Vehicle Does Not Creep Forward in "D" Position ..132
Vehicle Cannot Be Started from D1 ......................134 . OIL PAN ........................................................... 197
.
A/T Does Not Shift: D1 D2 .................................135 . Removal and Installation ...................................... 197
.
A/T Does Not Shift: D2 D3 .................................137 .
A/T Does Not Shift: D3 D4 .................................138 . CONTROL VALVE WITH TCM ....................... 199
.
A/T Does Not Shift: D4 D5 .................................140 . Control Valve with TCM and A/T Fluid Tempera-
A/T Does Not Perform Lock-up ............................142 . ture Sensor 2 ....................................................... 199
.
A/T Does Not Hold Lock-up Condition ..................143 . Exploded view ...................................................... 206
.
Lock-up Is Not Released ......................................144. Removal and Installation ...................................... 206 .
Engine Speed Does Not Return to Idle ................144 .
A/T Does Not Shift: 5th gear 4th gear ..............145 . REAR OIL SEAL ............................................. 213
.
A/T Does Not Shift: 4th gear 3rd gear ..............147 . Removal and Installation ...................................... 213
.
A/T Does Not Shift: 3rd gear 2nd gear .............148 .
A/T Does Not Shift: 2nd gear 1st gear .............149 .
KEY INTERLOCK CABLE .............................. 214
.
Vehicle Does Not Decelerate By Engine Brake ....150 . Component .......................................................... 214
.
Cannot Be Changed to Manual Mode ..................152 . Removal and Installation ...................................... 214.
Symptom Chart .....................................................152
. AIR BREATHER HOSE ................................... 217
.
PRECAUTION ........................................... 176
. 2WD ........................................................................ 217
.
2WD : Removal and Installation ........................... 217 .
PRECAUTIONS .............................................. 176
.
Precaution for Supplemental Restraint System 4WD ........................................................................ 220
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- 4WD : Removal and Installation ........................... 220 .
SIONER" ...............................................................176
.
Precaution for On Board Diagnosis (OBD) System A/T FLUID COOLER ....................................... 223
.
of A/T and Engine .................................................176
. Removal and Installation ...................................... 223
.
Precaution ............................................................176
.
Service Notice or Precaution ................................177 . REMOVAL AND INSTALLATION ............. 224
PREPARATION ......................................... 178
. TRANSMISSION ASSEMBLY ......................... 224
.
2WD ........................................................................ 224
.
PREPARATION .............................................. 178
.
2WD : Exploded View .......................................... 224 .
Special Service Tool .............................................178
.
2WD : Removal and Installation ........................... 225 .
Commercial Service Tool .....................................179.
4WD ........................................................................ 227
.
ON-VEHICLE MAINTENANCE ................. 180
. 4WD : Exploded View .......................................... 228 .
A/T FLUID ....................................................... 180
. 4WD : Removal and Installation ........................... 228 .
Checking the A/T Fluid (ATF) ...............................180
. DISASSEMBLY AND ASSEMBLY ........... 232
Changing the A/T Fluid (ATF) ...............................182
.
A/T Fluid Cooler Cleaning ....................................183
. OVERHAUL ..................................................... 232
.
Exploded View ..................................................... 232
.
INSPECTIONS BEFORE TROUBLE DIAG- Oil Channel .......................................................... 246
.
NOSIS ............................................................. 186
. Location of Adjusting Shims, Needle Bearings,
Fluid Condition Check ..........................................186 . Thrust Washers and Snap Rings ......................... 248 .
Stall Test ...............................................................186
.
Line Pressure Test ...............................................187 . DISASSEMBLY ............................................... 253
.
Disassembly ......................................................... 253
.
ROAD TEST .................................................... 190
.
Check Before Engine Is Started ...........................190 . OIL PUMP ........................................................ 271
.
Check at Idle .........................................................190
. Exploded View ..................................................... 271
.
Cruise Test - Part 1 ..............................................191
. Disassembly and Assembly ................................. 271 .
Cruise Test - Part 2 ..............................................193
.
TM-4
FRONT SUN GEAR, 3RD ONE-WAY ASSEMBLY ..................................................... 291
CLUTCH .......................................................... 274
. Assembly (1) ......................................................... 291
. A
Exploded View ..................................................... 274
. Adjustment ............................................................ 305
.
Disassembly and Assembly ................................. 274 . Assembly (2) ......................................................... 307
.
B
FRONT CARRIER, INPUT CLUTCH, REAR SERVICE DATA AND SPECIFICATIONS
INTERNAL GEAR ........................................... 276
. (SDS) ......................................................... 314
.
Exploded View ..................................................... 276
.
Disassembly and Assembly ................................. 276 . SERVICE DATA AND SPECIFICATIONS C
(SDS) ............................................................... 314
MID SUN GEAR, REAR SUN GEAR, HIGH General Specification ........................................... 314 .
AND LOW REVERSE CLUTCH HUB ............. 281
. Vehicle Speed at Which Gear Shifting Occurs ..... 314 . TM
Exploded View ..................................................... 281
. Vehicle Speed at Which Lock-up Occurs/Releas-
Disassembly and Assembly ................................. 282 . es .......................................................................... 315
.
Stall Speed ........................................................... 315. E
HIGH AND LOW REVERSE CLUTCH ............ 287
. Line Pressure ....................................................... 315 .
Exploded View ..................................................... 287
. A/T Fluid Temperature Sensor ............................. 316 .
Disassembly and Assembly ................................. 287 . Turbine Revolution Sensor ................................... 316 .
Vehicle Speed Sensor A/T (Revolution Sensor) ... 316 . F
DIRECT CLUTCH ............................................ 289
.
Reverse brake ...................................................... 316 .
Exploded View ..................................................... 289
.
Total End Play ...................................................... 316 .
Disassembly and Assembly ................................. 289 .
G
H
I
J
K
L
M
N
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P
TM-5
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick and Accurate Repair INFOID:0000000001714419
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, accelera-
tor pedal position sensor (throttle position sensor) or PNP switch.
Then provides shift control or lock-up control via A/T solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
A/T system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
SAT631IB
tion, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-III (or GST) or a circuit tester connected should be
performed. Follow the "DETAILED FLOW".
SAT632I
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A "Diagnostic work sheet" as shown on
the example (Refer to TM-7) should be used.
Start your diagnosis by looking for "conventional" errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SEF234G
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using diagnosis worksheet. Refer to TM-7, "Diagnostic Work Sheet".
>> GO TO 2.
2.CHECK SYMPTOM 1
Check the following items based on the information obtained from the customer.
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