DTC INFINITI QX56 2007 Factory Owner's Manual

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-47
< SERVICE INFORMATION >[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
N
O
P
3.CHECK GEAR SHIFT POSITION
Check that gear positions are correct in A/T.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.CHECK TCM GEAR POSITION SIGNAL
With CONSULT-II
With TCM data monitor on CONSULT-II, check that gear positions are correct.
OK or NG
OK >> Replace ICC unit. Refer to ACS-55, "ICC Unit". Erase DTC and perform self-diagnosis of ICC sys-
tem again.
NG >> • Perform TCM diagnosis.
• Erase DTC and perform self-diagnosis of ICC system again.
5.CHECK TCM TURBINE ROTATION
With CONSULT-II
With TCM diagnosis, check that turbine rpm is normal. Refer to AT-103
.
OK or NG
OK >> Replace ICC unit. Refer to ACS-55, "ICC Unit". Erase DTC and perform self-diagnosis of ICC sys-
tem again.
NG >> • Perform TCM diagnosis.
• Erase DTC and perform self-diagnosis of ICC system again.
DTC 102 LASER STAININFOID:0000000003533809
1.VISUAL INSPECTION (1)
Check that there is no contamination and foreign material on ICC sensor body window.
OK or NG
OK >> GO TO 2.
NG >> • Clean ICC sensor.
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
2.VISUAL INSPECTION (2)
Check ICC sensor body window for cracks.
OK or NG
OK >> GO TO 3.
NG >> • Replace ICC sensor and adjust laser beam. Refer to ACS-12
.
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
3.ASK CUSTOMER FOR DRIVING CONDITIONS
1. Is there any trace of contamination or foreign material on ICC sensor?
2. Is there any possibility that vehicle was driven in snow or ICC sensor was frosted?
3. Is there any possibility that ICC sensor was fogged temporarily? (Front window glass may have also been
fogged.)
Ye s o r N o
Yes >> Explain system operation and parameters to customer. System may be operating normally.
No >> • Replace ICC sensor and adjust laser beam aiming. Refer to ACS-55, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
DTC 103 LASER SENSOR FAILINFOID:0000000003533810
1.DIAGNOSTIC CHECK

ACS-48
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Are “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” item indicated in self-diagnosis display
item?
YES or NO
YES >> GO TO applicable item inspection. Refer to ACS-36, "DTC 11 CONTROL UNIT", and ACS-37,
"DTC 20 CAN COMM CIRCUIT".
NO >> • Replace ICC sensor and adjust laser beam aiming. Refer to ACS-55, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
DTC 104 LASER AIMING INCMPINFOID:0000000003533811
1.DIAGNOSTIC CHECK
1. Adjust laser beam aiming. Refer to ACS-12
. Erase DTC and perform ICC system running test. Refer to
ACS-9, "
ICC System Running Test".
2. Perform self-diagnosis of ICC system. Is “DTC 104 LASER AIMING INCMP” indicated?
CAUTION:
Ensure that laser beam aiming apparatus is set up accurately.
YES or NO
YES >> • Replace ICC sensor and adjust laser beam aiming. Refer to ACS-55, "ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
NO >> Inspection end.
DTC 107 LASER COMM FAILINFOID:0000000003533812
1.DIAGNOSTIC CHECK
Is “DTC 11 CONTROL UNIT” or “DTC 20 CAN COMM CIRCUIT” indicated in the self-diagnosis display item?
YES or NO
YES >> GO TO applicable item inspection. Refer to ACS-36, "DTC 11 CONTROL UNIT" , or ACS-37,
"DTC 20 CAN COMM CIRCUIT".
NO >> • Replace ICC sensor and adjust laser beam aiming. Refer to ACS-55, "
ICC Sensor".
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
DTC 109 LASER HIGH TEMPINFOID:0000000003533813
1.CHECK SYMPTOM
Is cooling system malfunctioning?
YES or NO
YES >> • Repair cooling system.
• Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
NO >> • Replace ICC sensor and adjust laser beam aiming. Refer to ACS-55, "
ICC Sensor".
• Erase DTC, then perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.

ACS-50
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
2.CHECK ICC UNIT CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ICC unit harness connectors.
3. Check connector housing for disconnected, loose, bent, and collapsed terminals.
OK or NG
OK >> GO TO 3.
NG >> • Poor connector connection.
• Repair ICC unit connector. Erase DTC and perform ICC system running test. Refer to ACS-9,
"ICC System Running Test". Then perform self-diagnosis of ICC system again.
3.DIAGNOSIS CHECK
With CONSULT-II
• Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?
YES or NO
YES >> Refer to ACS-37, "DTC 20 CAN COMM CIRCUIT".
NO >> Refer to ACS-40, "
DTC 46 OPERATION SW CIRC".
Symptom 2 the ICC System Cannot Be Set (ON/OFF Switch Turns On/Off)
INFOID:0000000003533816
The ICC cannot be set in the following cases.• When the vehicle speed is not in range of approx. 40 km/h (25 MPH) to 144 km/h (89 MPH).
• When the selector lever is in "N".
• While the brake is in operation.
• When the windshield wipers are operating.
1.CHECK CAUSE OF AUTOMATIC CANCELLATION
With CONSULT-II
1. With “CAUSE OF AUTO-CANCEL” in "WORK SUPPORT" on CONSULT-II, check if any cause of cancel-
lation exists.
OK or NG
OK >> • Cancel with appropriate cause.
• For causes A, B, or C, go to specified diagnosis.
A: “OPE SW VOLT CIRC” : Refer to ACS-40, "
DTC 46 OPERATION SW CIRC".
B: “VHCL SPD UNMATCH” : Refer to ACS-38, "
DTC 41 VHCL SPEED SE CIRC".
C: “IGN LOW VOLT” : Refer to ACS-37, "
DTC 31 POWER SUPPLY CIR1, DTC 34
POWER SUPPLY CIR2".
NG >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Perform CONSULT-II self-diagnosis to check for malfunctioning items.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace as necessary, erase DTC. Perform ICC system running test. Refer to ACS-9,
"ICC System Running Test". Then perform self-diagnosis of ICC system again.
3.CHECK SWITCHES AND VEHICLE SPEED SIGNAL
With CONSULT-II
1. With "DATA MONITOR" on the CONSULT-II, check that the following switches and vehicle speed signal
operate normally.
A: VHCL SPEED SE B: NP RANGE SW
C: BRAKE SW D: SET/COAST SW
OK or NG
OK >> Replace ICC unit and erase DTC. Refer to ACS-55, "ICC Unit". Perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test". Then perform self-diagnosis of ICC system again.
NG >> • A: Refer to ACS-38, "
DTC 41 VHCL SPEED SE CIRC".

TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-51
< SERVICE INFORMATION >[ICC]
C
D
E
F
G
H
I
J
L
MA
B
ACS
N
O
P
• B: Refer to ACS-51, "Symptom 4 the ICC System Is Not Cancelled When the Gear Is in ‘N’".
• C: Refer to ACS-38, "
DTC 45 BRAKE SW/STOP L SW".
• D: Refer to ACS-40, "
DTC 46 OPERATION SW CIRC".
Symptom 3 the ICC System Cannot Be Operated by the CANCEL Switch, ACCEL/
RES Switch, or DISTANCE Switch
INFOID:0000000003533817
RESUME will not function in the following cases:
• When ON/OFF switch is pressed once after the ICC system was ON.
• When the vehicle speed is less than 32 km/h (20 MPH).
1.CHECK SWITCH
With CONSULT-II
1. With "DATA MONITOR" on the CONSULT-II, check that the following switches operate normally.
“RESUME/ACC SW”, “CANCEL SW”, “DISTANCE ADJ”.
OK or NG
OK >> Replace ICC unit and erase DTC. Refer to ACS-55, "ICC Unit". Perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test". Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2.CHECK DIAGNOSIS
With CONSULT-II
• Perform self-diagnosis with CONSULT-II. Is “CAN COMM CIRCUIT” indicated?
YES or NO
YES >> Refer to ACS-37, "DTC 20 CAN COMM CIRCUIT".
NO >> Refer to ACS-40, "
DTC 46 OPERATION SW CIRC".
Symptom 4 the ICC System Is Not Cancelled When the Gear Is in ‘N’INFOID:0000000003533818
1.CHECK D RANGE SWITCH
With CONSULT-II
1. With "DATA MONITOR" on the CONSULT-II, check that “NP RANGE SW” operates normally.
OK or NG
OK >> Replace ICC unit and erase DTC. Refer to ACS-55, "ICC Unit". Perform ICC system running test.
Refer to ACS-9, "
ICC System Running Test". Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2.CHECK CAN COMMUNICATION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check “CAN COMM CIRCUIT”.
OK or NG
OK >> GO TO 3.
NG >> Refer to ACS-37, "
DTC 20 CAN COMM CIRCUIT".
3.CHECK NP RANGE SWITCH
1. With "DATA MONITOR" on the CONSULT-II, check that “N” position switch operates normally.
OK or NG
OK >> Replace ICC unit. Refer to ACS-55, "ICC Unit". Perform ICC system running test. Refer to ACS-9,
"ICC System Running Test". Then perform self-diagnosis of ICC system again.
NG >> Repair or replace as necessary. Perform ICC system running test. Refer to ACS-9, "
ICC System
Running Test". Then perform self-diagnosis of ICC system again.
Symptom 5 Chime Does Not SoundINFOID:0000000003533819
The chime may not sound occasionally in the following cases even if the distance from the vehicle ahead is
short:
• When the speed difference from that of the vehicle ahead is small (both vehicles driving at similar speed).
• When the vehicle ahead drives at faster speed (the actual distance is increasing).

ACS-52
< SERVICE INFORMATION >[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
• When depressing the accelerator.
• Chime does not sound when the vehicle is not driving.
• Chime does not sound when the system does not detect any vehicle ahead. Diagnose the conditions under
which the system is detecting the vehicle ahead and when the system is malfunctioning. If there is any mal-
function in detecting the vehicle ahead. Refer to ACS-52, "
Symptom 7 the ICC System Frequently Cannot
Detect the Vehicle Ahead/The Detection Zone Is Short".
1.CHECK ICC WARNING CHIME
With CONSULT-II
1. With "ACTIVE TEST" on the CONSULT-II, check that ICC warning chime operates normally.
OK or NG
OK >> Determine preceding vehicle detection status when malfunction occurred. If chime should have
sounded replace ICC unit. Refer to ACS-55, "
ICC Unit". Perform ICC system running test. Refer
to ACS-9, "
ICC System Running Test". Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2.CAN COMMUNICATION INSPECTION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check “CAN COMM CIRCUIT”.
OK or NG
OK >> Refer to ACS-37, "DTC 20 CAN COMM CIRCUIT".
NG >> Replace combination meter. Refer to DI-21, "
Removal and Installation of Combination Meter".
Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC System Running Test".
Then perform self-diagnosis of ICC system again.
Symptom 6 Driving Force Is HuntingINFOID:0000000003533820
1.CHECK ECM
1. Perform self-diagnosis of ECM.
OK or NG
OK >> Refer to ACS-52, "Symptom 7 the ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone Is Short".
NG >> Repair as necessary. Erase DTC and perform ICC system running test. Refer to ACS-9, "
ICC
System Running Test". Then perform self-diagnosis of ICC system again.
Symptom 7 the ICC System Frequently Cannot Detect the Vehicle Ahead/The Detec-
tion Zone Is Short
INFOID:0000000003533821
The detection function may become disrupted in the following cases:
• When the reflector of the vehicle ahead is small or not clean enough to reflect the laser.
• When driving a road with extremely sharp corners.
• When the laser cannot detect the reflector of the vehicle ahead as the vehicle ahead is passing a hill or
passing the peak.
1.VISUAL CHECK
1. Check ICC sensor body window for contamination and foreign materials.
OK or NG
OK >> If any contamination or foreign materials are found, remove them. Then perform ICC system run-
ning test. Refer to ACS-9, "
ICC System Running Test".
NG >> GO TO 2.
2.CHECK FUNCTION
1. After performing laser beam aiming adjustment, perform ICC system running test. Refer to ACS-9, "
ICC
System Running Test". Check that preceding vehicle detection performance has been improved.
OK or NG
OK >> Inspection End.
NG >> • Replace ICC sensor and perform laser beam aiming adjustment. Refer to ACS-55, "
ICC Sen-
sor".

AT-1
TRANSMISSION/TRANSAXLE
D
E
F
G
H
I
J
K
L
M
SECTION AT
A
B
AT
N
O
P
CONTENTS
AUTOMATIC TRANSMISSION
SERVICE INFORMATION ............................6
INDEX FOR DTC .................................................6
Alphabetical Index .....................................................6
DTC No. Index ..........................................................6
PRECAUTIONS ...................................................8
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
8
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine .....................................................
8
Precaution .................................................................8
Service Notice or Precaution .....................................9
PREPARATION ..................................................11
Special Service Tool ...............................................11
Commercial Service Tool ........................................12
A/T FLUID ...........................................................13
Changing Automatic Transmission Fluid (ATF) ......13
Checking Automatic Transmission Fluid (ATF) .......13
A/T Fluid Cooler Cleaning .......................................15
A/T CONTROL SYSTEM ....................................19
Cross-Sectional View (2WD models) ......................19
Cross-Sectional View (4WD models) ......................20
Shift Mechanism ......................................................20
TCM Function ..........................................................31
CAN Communication ...............................................32
Input/Output Signal of TCM .....................................33
Line Pressure Control .............................................33
Shift Control ............................................................35
Lock-up Control .......................................................36
Engine Brake Control ..............................................37
Control Valve ...........................................................37
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......39
Introduction .............................................................39
OBD-II Function for A/T System ..............................39
One or Two Trip Detection Logic of OBD-II ............39
OBD-II Diagnostic Trouble Code (DTC) ..................39
Malfunction Indicator Lamp (MIL) ............................41
TROUBLE DIAGNOSIS ....................................43
DTC Inspection Priority Chart ..................................43
Fail-Safe ..................................................................43
How To Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
44
A/T Electrical Parts Location ...................................50
Circuit Diagram ........................................................51
Inspections Before Trouble Diagnosis .....................51
Check Before Engine Is Started ..............................55
Check at Idle ............................................................55
Cruise Test - Part 1 .................................................56
Cruise Test - Part 2 .................................................58
Cruise Test - Part 3 .................................................59
Vehicle Speed When Shifting Gears .......................59
Vehicle Speed When Performing and Releasing
Complete Lock-up ...................................................
60
Vehicle Speed When Performing and Releasing
Slip Lock-up .............................................................
60
Symptom Chart ........................................................60
TCM Input/Output Signal Reference Value .............82
CONSULT-II Function (A/T) ....................................83
DTC U1000 CAN COMMUNICATION LINE .....91
Description ...............................................................91
On Board Diagnosis Logic .......................................91
Possible Cause ........................................................91
DTC Confirmation Procedure ..................................91
Wiring Diagram - AT - CAN .....................................92
Diagnosis Procedure ...............................................93
DTC P0615 START SIGNAL CIRCUIT .............94
Description ...............................................................94
CONSULT-II Reference Value in Data Monitor
Mode ........................................................................
94
On Board Diagnosis Logic .......................................94
Possible Cause ........................................................94
DTC Confirmation Procedure ..................................94
Wiring Diagram - AT - STSIG ..................................95
Diagnosis Procedure ...............................................95

AT-2
DTC P0700 TCM ................................................98
Description ..............................................................98
On Board Diagnosis Logic ......................................98
Possible Cause .......................................................98
DTC Confirmation Procedure .................................98
Diagnosis Procedure ..............................................98
DTC P0705 PARK/NEUTRAL POSITION
SWITCH .............................................................
99
Description ..............................................................99
CONSULT-II Reference Value in Data Monitor
Mode .......................................................................
99
On Board Diagnosis Logic ......................................99
Possible Cause .......................................................99
DTC Confirmation Procedure .................................99
Wiring Diagram - AT - PNP/SW .............................100
Diagnosis Procedure .............................................100
DTC P0717 TURBINE REVOLUTION SEN-
SOR ..................................................................
103
Description .............................................................103
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
103
On Board Diagnosis Logic .....................................103
Possible Cause ......................................................103
DTC Confirmation Procedure ................................103
Diagnosis Procedure .............................................103
DTC P0720 VEHICLE SPEED SENSOR A/T
(REVOLUTION SENSOR) ...............................
105
Description .............................................................105
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
105
On Board Diagnosis Logic .....................................105
Possible Cause ......................................................105
DTC Confirmation Procedure ................................105
Wiring Diagram - AT - VSSA/T ..............................106
Diagnosis Procedure .............................................107
DTC P0725 ENGINE SPEED SIGNAL ............109
Description .............................................................109
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
109
On Board Diagnosis Logic .....................................109
Possible Cause ......................................................109
DTC Confirmation Procedure ................................109
Diagnosis Procedure .............................................109
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE ..........................................
111
Description .............................................................111
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
111
On Board Diagnosis Logic .....................................111
Possible Cause ......................................................111
DTC Confirmation Procedure ................................111
Diagnosis Procedure .............................................111
DTC P0744 A/T TCC S/V FUNCTION (LOCK-
UP) ...................................................................
113
Description ............................................................113
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
113
On Board Diagnosis Logic ....................................113
Possible Cause .....................................................113
DTC Confirmation Procedure ................................113
Diagnosis Procedure .............................................114
DTC P0745 LINE PRESSURE SOLENOID
VALVE ..............................................................
115
Description ............................................................115
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
115
On Board Diagnosis Logic ....................................115
Possible Cause .....................................................115
DTC Confirmation Procedure ................................115
Diagnosis Procedure .............................................115
DTC P1705 THROTTLE POSITION SENSOR ..117
Description ............................................................117
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
117
On Board Diagnosis Logic ....................................117
Possible Cause .....................................................117
DTC Confirmation Procedure ................................117
Diagnosis Procedure .............................................117
DTC P1710 A/T FLUID TEMPERATURE SEN-
SOR CIRCUIT ...................................................
119
Description ............................................................119
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
119
On Board Diagnosis Logic ....................................119
Possible Cause .....................................................119
DTC Confirmation Procedure ................................119
Wiring Diagram - AT - FTS ...................................120
Diagnosis Procedure .............................................120
Component Inspection ..........................................122
DTC P1721 VEHICLE SPEED SENSOR MTR ..124
Description ............................................................124
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
124
On Board Diagnosis Logic ....................................124
Possible Cause .....................................................124
DTC Confirmation Procedure ................................124
Diagnosis Procedure .............................................124
DTC P1730 A/T INTERLOCK ...........................126
Description ............................................................126
On Board Diagnosis Logic ....................................126
Possible Cause .....................................................126
DTC Confirmation Procedure ................................126
Judgement of A/T Interlock ...................................126
Diagnosis Procedure .............................................127
DTC P1731 A/T 1ST ENGINE BRAKING ........128
Description ............................................................128
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
128

AT-3
D
E
F
G
H
I
J
K
L
MA
B
AT
N
O
P N On Board Diagnosis Logic ....................................
128
Possible Cause .....................................................128
DTC Confirmation Procedure ................................128
Diagnosis Procedure .............................................128
DTC P1752 INPUT CLUTCH SOLENOID
VALVE ..............................................................
130
Description ............................................................130
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
130
On Board Diagnosis Logic ....................................130
Possible Cause .....................................................130
DTC Confirmation Procedure ................................130
Diagnosis Procedure .............................................130
DTC P1754 INPUT CLUTCH SOLENOID
VALVE FUNCTION ..........................................
132
Description ............................................................132
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
132
On Board Diagnosis Logic ....................................132
Possible Cause .....................................................132
DTC Confirmation Procedure ................................132
Diagnosis Procedure .............................................133
DTC P1757 FRONT BRAKE SOLENOID
VALVE ..............................................................
134
Description ............................................................134
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
134
On Board Diagnosis Logic ....................................134
Possible Cause .....................................................134
DTC Confirmation Procedure ................................134
Diagnosis Procedure .............................................134
DTC P1759 FRONT BRAKE SOLENOID
VALVE FUNCTION ..........................................
136
Description ............................................................136
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
136
On Board Diagnosis Logic ....................................136
Possible Cause .....................................................136
DTC Confirmation Procedure ................................136
Diagnosis Procedure .............................................137
DTC P1762 DIRECT CLUTCH SOLENOID
VALVE ..............................................................
138
Description ............................................................138
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
138
On Board Diagnosis Logic ....................................138
Possible Cause .....................................................138
DTC Confirmation Procedure ................................138
Diagnosis Procedure .............................................138
DTC P1764 DIRECT CLUTCH SOLENOID
VALVE FUNCTION ..........................................
140
Description ............................................................140
CONSULT-II Reference Value in Data Monitor
Mode .....................................................................
140
On Board Diagnosis Logic .....................................140
Possible Cause ......................................................140
DTC Confirmation Procedure ................................140
Diagnosis Procedure .............................................141
DTC P1767 HIGH AND LOW REVERSE
CLUTCH SOLENOID VALVE .........................
142
Description .............................................................142
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
142
On Board Diagnosis Logic .....................................142
Possible Cause ......................................................142
DTC Confirmation Procedure ................................142
Diagnosis Procedure .............................................142
DTC P1769 HIGH AND LOW REVERSE
CLUTCH SOLENOID VALVE FUNCTION ......
144
Description .............................................................144
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
144
On Board Diagnosis Logic .....................................144
Possible Cause ......................................................144
DTC Confirmation Procedure ................................144
Diagnosis Procedure .............................................145
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE .............................................................
146
Description .............................................................146
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
146
On Board Diagnosis Logic .....................................146
Possible Cause ......................................................146
DTC Confirmation Procedure ................................146
Diagnosis Procedure .............................................146
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION .........................................
148
Description .............................................................148
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
148
On Board Diagnosis Logic .....................................148
Possible Cause ......................................................148
DTC Confirmation Procedure ................................148
Diagnosis Procedure .............................................149
DTC P1841 ATF PRESSURE SWITCH 1 .......150
Description .............................................................150
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
150
On Board Diagnosis Logic .....................................150
Possible Cause ......................................................150
DTC Confirmation Procedure ................................150
Diagnosis Procedure .............................................150
DTC P1843 ATF PRESSURE SWITCH 3 .......152
Description .............................................................152
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
152
On Board Diagnosis Logic .....................................152
Possible Cause ......................................................152

AT-4
DTC Confirmation Procedure ................................152
Diagnosis Procedure .............................................152
DTC P1845 ATF PRESSURE SWITCH 5 ........154
Description .............................................................154
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
154
On Board Diagnosis Logic .....................................154
Possible Cause ......................................................154
DTC Confirmation Procedure ................................154
Diagnosis Procedure .............................................154
DTC P1846 ATF PRESSURE SWITCH 6 ........156
Description .............................................................156
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
156
On Board Diagnosis Logic .....................................156
Possible Cause ......................................................156
DTC Confirmation Procedure ................................156
Diagnosis Procedure .............................................156
MAIN POWER SUPPLY AND GROUND CIR-
CUIT .................................................................
158
Wiring Diagram - AT - MAIN ..................................158
Diagnosis Procedure .............................................159
CLOSED THROTTLE POSITION AND WIDE
OPEN THROTTLE POSITION CIRCUIT .........
161
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
161
Diagnosis Procedure .............................................161
BRAKE SIGNAL CIRCUIT ..............................162
CONSULT-II Reference Value in Data Monitor
Mode ......................................................................
162
Diagnosis Procedure .............................................162
TOW MODE SWITCH ......................................163
Description .............................................................163
Wiring Diagram - AT - TMSW ................................163
Diagnosis Procedure .............................................164
TROUBLE DIAGNOSIS FOR SYMPTOMS .....165
Wiring Diagram - AT - NONDTC ............................165
A/T Check Indicator Lamp Does Not Come On .....167
Engine Cannot Be Started in "P" or "N" Position ...168
In "P" Position, Vehicle Moves When Pushed .......168
In "N" Position, Vehicle Moves ..............................169
Large Shock ("N" to "D" Position) ..........................170
Vehicle Does Not Creep Backward in "R" Position ..172
Vehicle Does Not Creep Forward in "D" Position ..175
Vehicle Cannot Be Started from D1 .......................177
A/T Does Not Shift: D1→ D2 ..................................179
A/T Does Not Shift: D2→ D3 ..................................181
A/T Does Not Shift: D3→ D4 ..................................183
A/T Does Not Shift: D4→ D5 ..................................185
A/T Does Not Perform Lock-up .............................187
A/T Does Not Hold Lock-up Condition ...................189
Lock-up Is Not Released .......................................190
Engine Speed Does Not Return to Idle .................191
A/T Does Not Shift: 5th gear → 4th gear ..............192
A/T Does Not Shift: 4th gear → 3rd gear ..............194
A/T Does Not Shift: 3rd gear → 2nd gear .............196
A/T Does Not Shift: 2nd gear → 1st gear .............197
Vehicle Does Not Decelerate By Engine Brake ....199
A/T SHIFT LOCK SYSTEM ..............................202
Description ............................................................202
Shift Lock System Electrical Parts Location ..........202
Wiring Diagram - AT - SHIFT ................................203
Shift Lock Control Unit Reference Value ..............204
Component Inspection ..........................................204
SHIFT CONTROL SYSTEM .............................207
Control Device Removal and Installation ..............207
Adjustment of A/T Position ....................................208
Checking of A/T Position .......................................208
ON-VEHICLE SERVICE ...................................209
Oil Pan ..................................................................209
Control Valve with TCM and A/T Fluid Tempera-
ture Sensor 2 ........................................................
210
Rear Oil Seal .........................................................219
AIR BREATHER HOSE ....................................221
Removal and Installation .......................................221
TRANSMISSION ASSEMBLY ..........................223
Removal and Installation (2WD) ...........................223
Removal and Installation (4WD) ...........................225
OVERHAUL ......................................................228
Component ...........................................................228
Oil Channel ...........................................................235
Location of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings ..........................
237
DISASSEMBLY ................................................240
Disassembly ..........................................................240
REPAIR FOR COMPONENT PARTS ..............258
Oil Pump ...............................................................258
Front Sun Gear, 3rd One-Way Clutch ...................260
Front Carrier, Input Clutch, Rear Internal Gear .....262
Mid Sun Gear, Rear Sun Gear, High and Low Re-
verse Clutch Hub ..................................................
267
High and Low Reverse Clutch ..............................272
Direct Clutch .........................................................274
ASSEMBLY ......................................................277
Assembly (1) .........................................................277
Adjustment ............................................................290
Assembly (2) .........................................................292
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
298
General Specification ............................................298
Vehicle Speed When Shifting Gears .....................298
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................
299
Stall Speed ............................................................299

AT-6
< SERVICE INFORMATION >
INDEX FOR DTC
SERVICE INFORMATION
INDEX FOR DTC
Alphabetical IndexINFOID:0000000003532216
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT- 9 1
.
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
DTC No. IndexINFOID:0000000003532217
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT- 9 1
.
Items
(CONSULT- II screen terms) DTC
Reference page OBD- II Except OBD- II
CONSULT- II GST (*1) CONSULT- II only “A/T”
A/T 1ST E/BRAKING — P1731AT- 1 2 8
ATF PRES SW 1/CIRC — P1841AT- 1 5 0
ATF PRES SW 3/CIRC — P1843AT- 1 5 2
ATF PRES SW 5/CIRC — P1845AT- 1 5 4
ATF PRES SW 6/CIRC — P1846AT- 1 5 6
A/T INTERLOCK P1730 P1730AT- 1 2 6
A/T TCC S/V FNCTN P0744 P0744 AT- 11 3
ATF TEMP SEN/CIRC P0710 P1710AT- 11 9
CAN COMM CIRCUIT U1000 U1000AT- 9 1
D/C SOLENOID/CIRC P1762 P1762AT- 1 3 8
D/C SOLENOID FNCTN P1764 (*2) P1764 AT- 1 4 0
ENGINE SPEED SIG — P0725AT- 1 0 9
FR/B SOLENOID/CIRC P1757 P1757AT- 1 3 4
FR/B SOLENOID FNCT P1759 P1759 AT- 1 3 6
HLR/C SOL/CIRC P1767 P1767AT- 1 4 2
HLR/C SOL FNCTN P1769 (*2) P1769 AT- 1 4 4
I/C SOLENOID/CIRC P1752 P1752AT- 1 3 0
I/C SOLENOID FNCTN P1754 (*2) P1754 AT- 1 3 2
L/PRESS SOL/CIRC P0745 P0745AT- 11 5
LC/B SOLENOID/CIRC P1772 P1772AT- 1 4 6
LC/B SOLENOID FNCT P1774 P1774 AT- 1 4 8
PNP SW/CIRC P0705 P0705AT- 9 9
STARTER RELAY/CIRC — P0615AT- 9 4
TCC SOLENOID/CIRC P0740 P0740AT- 111
TCM P0700 P0700AT- 9 8
TP SEN/CIRC A/T — P1705AT- 11 7
TURBINE REV S/CIRC P0717 P0717AT- 1 0 3
VEH SPD SE/CIR·MTR — P1721AT- 1 2 4
VEH SPD SEN/CIR AT P0720 P0720AT- 1 0 5