lock INFINITI QX4 2005 Factory Service Manual

-1QUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System (SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & MirrorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatAPAdjustable PedalJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Telephone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit ElementsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: October 2004
Revision: October 2005BDACEFGHIJKLM

ACC-2Revision: October 2005
ACCELERATOR CONTROL SYSTEM
2005 QX56
ACCELERATOR CONTROL SYSTEMPFP:18005
Removal and InstallationEBS00M3Z
Adjustable Accelerator Pedal
CAUTION:

Do not disassemble the accelerator pedal adjusting mechanism.

Before removal and installation the accelerator and brake pedals must be in the frontmost posi-
tion. This is to align the base position of the accelerator and brake pedals.

Do not disassemble the accelerator pedal assembly.

Do not remove the accelerator pedal position sensor from the accelerator pedal bracket.

Avoid damage from dropping the accelerator pedal assembly during handling.

Keep the accelerator pedal assembly away from water.
REMOVAL
1. Move the accelerator and brake pedals to the frontmost position.
2. Turn the ignition switch OFF and disconnect the negative battery terminal.
3. Disconnect the adjustable brake pedal cable from the adjustable brake pedal.

Unlock, then pull the adjustable brake pedal cable to disconnect it from the adjustable brake pedal.
LBIA0379E
1. Adjustable accelerator pedal assem-
bly2. A/T control cable mounting bracket (part
of the accelerator pedal assembly)3. Adjustable pedal electric motor (part
of the accelerator pedal assembly)
4. Adjustable brake pedal cable (part
of the accelerator pedal assembly)

ACS-16
[ICC]
LASER BEAM AIMING ADJUSTMENT
Revision: October 20052005 QX56

The area is not suitable for the adjustment work.

ICC sensor is not clean.
8. After the CONSULT-II displays “ADJUST THE VERTICAL OF
LASER BEAM AIMING” turn the vertical adjusting screw until
“U/D CORRECT” value is set in the range of ±4.
CAUTION:
Turn the screw slowly. The value on the CONSULT-II is
slower than the actual movement of the ICC sensor. Wait 2
seconds between each adjustment. Also, during adjust-
ment work, do not block the ICC sensor lens with your hand
or body. In that case, there are times when aiming cannot
be conducted correctly.
NOTE:
Turning the screw clockwise raises the ICC sensor and counter-
clockwise lowers the ICC sensor.
9. When “U/D CORRECT” value indicates ±4, confirm that the value remains within ±4 for at least 2 seconds
while nothing is touching the ICC sensor.
When “COMPLETED THE VERTICAL AIMING OF LASER
BEAM” appears on screen, touch “END”.
CAUTION:
Be sure that the margin of “U/D CORRECT” is within ±4
when the ICC sensor unit is untouched.
10. Confirm that “ADJUSTING AUTOMATIC HORIZONTAL LASER
BEAM AIMING” is on screen and wait while the horizontal
adjustment is made automatically. (maximum: 10 seconds).
SKIA1221E
WKIA1869E
WKIA2676E
SKIA1224E

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
A
B
AT
Revision: October 20052005 QX56 INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
DTC No. Index ......................................................... 6
PRECAUTIONS .......................................................... 7
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 7
Precautions for On Board Diagnostic (OBD) System
of A/T and Engine .................................................... 7
Precautions .............................................................. 8
Service Notice or Precautions .................................. 9
Wiring Diagrams and Trouble Diagnosis .................. 9
PREPARATION ......................................................... 10
Special Service Tools ............................................. 10
Commercial Service Tools ...................................... 12
A/T FLUID ................................................................. 13
Changing A/T Fluid ................................................ 13
Checking A/T Fluid ................................................. 13
A/T Fluid Cooler Cleaning ...................................... 13
A/T CONTROL SYSTEM .......................................... 16
Cross-Sectional View (2WD models) ..................... 16
Cross-Sectional View (4WD models) ..................... 17
Shift Mechanism ..................................................... 18
TCM Function ......................................................... 29
CAN Communication .............................................. 30
Input/Output Signal of TCM .................................... 30
Line Pressure Control ............................................ 31
Shift Control ........................................................... 32
Lock-up Control ...................................................... 33
Engine Brake Control ............................................. 35
Control Valve .......................................................... 35
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 37
Introduction ............................................................ 37
OBD-II Function for A/T System ............................. 37
One or Two Trip Detection Logic of OBD-II ............ 37
OBD-II Diagnostic Trouble Code (DTC) ................. 37
Malfunction Indicator Lamp (MIL) ........................... 40
TROUBLE DIAGNOSIS ............................................ 41
DTC Inspection Priority Chart ................................ 41
Fail-Safe ................................................................. 41How To Perform Trouble Diagnosis For Quick and
Accurate Repair ...................................................... 43
A/T Electrical Parts Location .................................. 48
Circuit Diagram ....................................................... 49
Inspections Before Trouble Diagnosis .................... 50
Check Before Engine is Started .............................. 54
Check at Idle ........................................................... 54
Cruise Test - Part 1 ................................................. 55
Cruise Test - Part 2 ................................................. 57
Cruise Test - Part 3 ................................................. 58
Vehicle Speed When Shifting Gears ...................... 59
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................. 59
Vehicle Speed When Performing and Releasing
Slip Lock-up ............................................................ 59
Symptom Chart ....................................................... 60
TCM Input/Output Signal Reference Values ........... 82
CONSULT-II Function (A/T) .................................... 83
DTC U1000 CAN COMMUNICATION LINE .............. 95
Description .............................................................. 95
On Board Diagnosis Logic ...................................... 95
Possible Cause ....................................................... 95
DTC Confirmation Procedure ................................. 95
Wiring Diagram — AT — CAN ................................ 96
Diagnostic Procedure ............................................. 98
DTC P0615 START SIGNAL CIRCUIT ..................... 99
Description .............................................................. 99
CONSULT-II Reference Value ................................ 99
On Board Diagnosis Logic ...................................... 99
Possible Cause ....................................................... 99
DTC Confirmation Procedure ................................. 99
Wiring Diagram — AT — STSIG ..........................100
Diagnostic Procedure ...........................................101
DTC P0700 TCM .....................................................103
Description ............................................................103
On Board Diagnosis Logic ....................................103
Possible Cause .....................................................103
DTC Confirmation Procedure ...............................103
Diagnostic Procedure ...........................................103
DTC P0705 PARK/NEUTRAL POSITION SWITCH .104

AT-2Revision: October 20052005 QX56 Description ............................................................104
CONSULT-II Reference Value ..............................104
On Board Diagnosis Logic ....................................104
Possible Cause .....................................................104
DTC Confirmation Procedure ...............................104
Wiring Diagram — AT — PNP/SW .......................105
Diagnostic Procedure ...........................................106
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) ...............................................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Wiring Diagram — AT — VSSA/T .........................110
Diagnostic Procedure ........................................... . 111
DTC P0725 ENGINE SPEED SIGNAL ...................113
Description ............................................................113
CONSULT-II Reference Value ..............................113
On Board Diagnosis Logic ....................................113
Possible Cause .....................................................113
DTC Confirmation Procedure ...............................113
Diagnostic Procedure ...........................................113
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................115
Description ............................................................115
CONSULT-II Reference Value ..............................115
On Board Diagnosis Logic ....................................115
Possible Cause .....................................................115
DTC Confirmation Procedure ...............................115
Diagnostic Procedure ...........................................116
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .117
Description ............................................................117
CONSULT-II Reference Value ..............................117
On Board Diagnosis Logic ....................................117
Possible Cause .....................................................117
DTC Confirmation Procedure ...............................117
Diagnostic Procedure ...........................................118
DTC P0745 LINE PRESSURE SOLENOID VALVE .119
Description ............................................................119
CONSULT-II Reference Value ..............................119
On Board Diagnosis Logic ....................................119
Possible Cause .....................................................119
DTC Confirmation Procedure ...............................119
Diagnostic Procedure ...........................................120
DTC P1702 TRANSMISSION CONTROL MODULE
(RAM) ......................................................................121
Description ............................................................121
On Board Diagnosis Logic ....................................121
Possible Cause .....................................................121
DTC Confirmation Procedure ...............................121
Diagnostic Procedure ...........................................121
DTC P1703 TRANSMISSION CONTROL MODULE
(ROM) ......................................................................122
Description ............................................................122
On Board Diagnosis Logic ....................................122
Possible Cause .....................................................122
DTC Confirmation Procedure ...............................122
Diagnostic Procedure ...........................................122DTC P1705 THROTTLE POSITION SENSOR ........ 123
Description ............................................................ 123
CONSULT-II Reference Value ............................... 123
On Board Diagnosis Logic .................................... 123
Possible Cause ..................................................... 123
DTC Confirmation Procedure ................................ 123
Diagnostic Procedure ............................................ 123
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT .................................................................. 126
Description ............................................................ 126
CONSULT-II Reference Value ............................... 126
On Board Diagnosis Logic .................................... 126
Possible Cause ..................................................... 126
DTC Confirmation Procedure ................................ 126
Wiring Diagram — AT — FTS ............................... 127
Diagnostic Procedure ............................................ 128
Component Inspection .......................................... 129
DTC P1716 TURBINE REVOLUTION SENSOR .... 131
Description ............................................................ 131
CONSULT-II Reference Value ............................... 131
On Board Diagnosis Logic .................................... 131
Possible Cause ..................................................... 131
DTC Confirmation Procedure ................................ 131
Diagnostic Procedure ............................................ 132
DTC P1721 VEHICLE SPEED SENSOR MTR ....... 133
Description ............................................................ 133
CONSULT-II Reference Value ............................... 133
On Board Diagnosis Logic .................................... 133
Possible Cause ..................................................... 133
DTC Confirmation Procedure ................................ 133
Diagnostic Procedure ............................................ 134
DTC P1730 A/T INTERLOCK ................................. 135
Description ............................................................ 135
On Board Diagnosis Logic .................................... 135
Possible Cause ..................................................... 135
DTC Confirmation Procedure ................................ 135
Judgement of A/T Interlock ................................... 136
Diagnostic Procedure ............................................ 136
DTC P1731 A/T 1ST ENGINE BRAKING ............... 138
Description ............................................................ 138
CONSULT-II Reference Value ............................... 138
On Board Diagnosis Logic .................................... 138
Possible Cause ..................................................... 138
DTC Confirmation Procedure ................................ 138
Diagnostic Procedure ............................................ 139
DTC P1752 INPUT CLUTCH SOLENOID VALVE .. 140
Description ............................................................ 140
CONSULT-II Reference Value ............................... 140
On Board Diagnosis Logic .................................... 140
Possible Cause ..................................................... 140
DTC Confirmation Procedure ................................ 140
Diagnostic Procedure ............................................ 141
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION .............................................................. 142
Description ............................................................ 142
CONSULT-II Reference Value ............................... 142
On Board Diagnosis Logic .................................... 142
Possible Cause ..................................................... 142

AT-4Revision: October 20052005 QX56 A/T Does Not Shift: D
3 → D4 ................................199
A/T Does Not Shift: D
4 → D5 ................................202
A/T Does Not Perform Lock-up ............................204
A/T Does Not Hold Lock-up Condition ..................206
Lock-up Is Not Released ......................................208
Engine Speed Does Not Return to Idle ................209
A/T Does Not Shift: 5th gear → 4th gear ..............210
A/T Does Not Shift: 4th gear → 3rd gear ..............213
A/T Does Not Shift: 3rd gear → 2nd gear .............214
A/T Does Not Shift: 2nd gear → 1st gear .............216
Vehicle Does Not Decelerate By Engine Brake ....219
A/T SHIFT LOCK SYSTEM .....................................222
Description ............................................................222
Shift Lock System Electrical Parts Location .........222
Wiring Diagram — A/T — SHIFT ..........................223
Shift Lock Control Unit Reference Values .............224
Component Inspection ..........................................225
SHIFT CONTROL SYSTEM ....................................227
Control Device Removal and Installation ..............227
Adjustment of A/T Position ...................................228
Checking of A/T Position ......................................228
ON-VEHICLE SERVICE ..........................................229
Oil Pan ..................................................................229
Control Valve With TCM and A/T Fluid Temperature
Sensor 2 ...............................................................231
Rear Oil Seal ........................................................241
AIR BREATHER HOSE ...........................................242
Removal and Installation ......................................242
TRANSMISSION ASSEMBLY ................................244
Removal and Installation (4x2) .............................244
Removal and Installation (4x4) .............................247
OVERHAUL .............................................................250Components .......................................................... 250
Oil Channel ........................................................... 258
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings .......................... 260
DISASSEMBLY ....................................................... 262
Disassembly .......................................................... 262
REPAIR FOR COMPONENT PARTS ...................... 280
Oil Pump ............................................................... 280
Front Sun Gear, 3rd One-Way Clutch ................... 282
Front Carrier, Input Clutch, Rear Internal Gear ..... 284
Mid Sun Gear, Rear Sun Gear, High and Low
Reverse Clutch Hub .............................................. 289
High and Low Reverse Clutch .............................. 294
Direct Clutch ......................................................... 296
ASSEMBLY ............................................................. 298
Assembly (1) ......................................................... 298
Adjustment ............................................................311
Assembly (2) ......................................................... 314
SERVICE DATA AND SPECIFICATIONS (SDS) .... 321
General Specifications .......................................... 321
Vehicle Speed When Shifting Gears ..................... 321
Vehicle Speed When Performing and Releasing
Complete Lock-up ................................................. 322
Vehicle Speed When Performing and Releasing
Slip Lock-up .......................................................... 322
Stall Speed ............................................................ 322
Line Pressure ........................................................ 322
A/T Fluid Temperature Sensor .............................. 322
Turbine Revolution Sensor .................................... 322
Vehicle Speed Sensor A/T (Revolution Sensor) ... 322
Reverse brake ....................................................... 323
Total End Play ....................................................... 323

INDEX FOR DTC
AT-5
D
E
F
G
H
I
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K
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MA
B
AT
Revision: October 20052005 QX56
INDEX FOR DTCPFP:00024
Alphabetical Index ECS0 0CD H
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT-9 5, "
DTC U1000 CAN COMMUNICATION LINE" .
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.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 3 8
ATF PRES SW 1/CIRC — P1841AT- 1 6 0
ATF PRES SW 3/CIRC — P1843AT- 1 6 2
ATF PRES SW 5/CIRC — P1845AT- 1 6 4
ATF PRES SW 6/CIRC — P1846AT- 1 6 6
A/T INTERLOCK P1730 P1730AT- 1 3 5
A/T TCC S/V FNCTN P0744 P0744 AT- 11 7
ATF TEMP SEN/CIRC P0710 P1710AT- 1 2 6
CAN COMM CIRCUIT U1000 U1000AT- 9 5
D/C SOLENOID/CIRC P1762 P1762AT- 1 4 8
D/C SOLENOID FNCTN P1764 (*2 ) P1764 AT- 1 5 0
ENGINE SPEED SIG — P0725AT- 11 3
FR/B SOLENOID/CIRC P1757 P1757AT- 1 4 4
FR/B SOLENOID FNCT P1759 P1759 AT- 1 4 6
HLR/C SOL/CIRC P1767 P1767AT- 1 5 2
HLR/C SOL FNCTN P1769 (*2 ) P1769 AT- 1 5 4
I/C SOLENOID/CIRC P1752 P1752AT- 1 4 0
I/C SOLENOID FNCTN P1754 (*2 ) P1754 AT- 1 4 2
L/PRESS SOL/CIRC P0745 P0745AT- 11 9
LC/B SOLENOID/CIRC P1772 P1772AT- 1 5 6
LC/B SOLENOID FNCT P1774 P1774 AT- 1 5 8
PNP SW/CIRC P0705 P0705AT- 1 0 4
STARTER RELAY/CIRC — P0615AT- 9 9
TCC SOLENOID/CIRC P0740 P0740AT- 11 5
TCM P0700 P0700AT- 1 0 3
TCM·RAM — P1702AT- 1 2 1
TCM·ROM — P1703AT- 1 2 2
TP SEN/CIRC A/T — P1705AT- 1 2 3
TURBINE REV S/CIRC P1716 P1716AT- 1 3 1
VEH SPD SE/CIR·MTR — P1721AT- 1 3 3
VEH SPD SEN/CIR AT P0720 P0720AT- 1 0 8

AT-6
INDEX FOR DTC
Revision: October 20052005 QX56
DTC No. Index ECS00CDI
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
AT- 9 5 , "
DTC U1000 CAN COMMUNICATION LINE" .
*1: These numbers are prescribed by SAE J2012.
*2: These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.DTC
Items
(CONSULT- II screen terms)Reference page OBD- II Except OBD- II
CONSULT- II
GST (*1)C O N S U LT- I I
only “A/T”
— P0615 STARTER RELAY/CIRCAT- 9 9
P0700 P0700 TCMAT- 1 0 3
P0705 P0705 PNP SW/CIRCAT- 1 0 4
P0710 P1710 ATF TEMP SEN/CIRCAT- 1 2 6
P0720 P0720 VEH SPD SEN/CIR ATAT- 1 0 8
— P0725 ENGINE SPEED SIGAT-11 3
P0740 P0740 TCC SOLENOID/CIRCAT-11 5
P0744 P0744 A/T TCC S/V FNCTNAT-11 7
P0745 P0745 L/PRESS SOL/CIRCAT-11 9
— P1702 TCM·RAMAT- 1 2 1
— P1703 TCM·ROMAT- 1 2 2
— P1705 TP SEN/CIRC A/TAT- 1 2 3
P1716 P1716 TURBINE REV S/CIRCAT- 1 3 1
— P1721 VEH SPD SE/CIR·MTRAT- 1 3 3
P1730 P1730 A/T INTERLOCKAT- 1 3 5
— P1731 A/T 1ST E/BRAKINGAT- 1 3 8
P1752 P1752 I/C SOLENOID/CIRCAT- 1 4 0
P1754 (*2 ) P1754 I/C SOLENOID FNCTNAT- 1 4 2
P1757 P1757 FR/B SOLENOID/CIRCAT- 1 4 4
P1759 (*2 ) P1759 FR/B SOLENOID FNCTAT- 1 4 6
P1762 P1762 D/C SOLENOID/CIRCAT- 1 4 8
P1764 (*2 ) P1764 D/C SOLENOID FNCTNAT- 1 5 0
P1767 P1767 HLR/C SOL/CIRCAT- 1 5 2
P1769 P1769 HLR/C SOL FNCTNAT- 1 5 4
P1772 P1772 LC/B SOLENOID/CIRCAT- 1 5 6
P1774 P1774 LC/B SOLENOID FNCTAT- 1 5 8
— P1841 ATF PRES SW 1/CIRCAT- 1 6 0
— P1843 ATF PRES SW 3/CIRCAT- 1 6 2
— P1845 ATF PRES SW 5/CIRCAT- 1 6 4
— P1846 ATF PRES SW 6/CIRCAT- 1 6 6
U1000 U1000 CAN COMM CIRCUITAT- 9 5

PRECAUTIONS
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Revision: October 20052005 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ECS00CDJ
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WA RN ING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for On Board Diagnostic (OBD) System of A/T and EngineECS00CDK
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch “OFF” and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. Will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. May cause the MIL to light up due to a short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EGR system or fuel injection system, etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.

PRECAUTIONS
AT-9
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Revision: October 20052005 QX56
Service Notice or PrecautionsECS00CDM
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to AT-13, "
A/T
Fluid Cooler Cleaning" . For radiator replacement, refer to CO-12, "Removal and Installation" .
CHECKING AND CHANGING A/T FLUID SERVICE
Increase ATF temperature by 80°C (176°F) once, and then check ATF level in 65°C (149°F) when adjusting
ATF level.
NOTE:
JA60 uses both systems of a water-cooling and of an air-cooling. Air-cooling system has a by-pass valve.
When ATF temperature is not over 50°C (122°F) with water-cooling system OFF, it does not flow to air-cooling
system. If ATF level is set without the flow of ATF, the level will be 10mm lower than the standard. Therefore,
piping should be filled with ATF when adjusting level.
OBD-II SELF-DIAGNOSIS

A/T self-diagnosis is performed by the TCM in combination with the ECM. Refer to the table on AT-85,
"SELF-DIAGNOSTIC RESULT MODE" for the indicator used to display each self-diagnostic result.

The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure on AT-3 8, "
HOW TO ERASE DTC" to complete the repair and avoid
unnecessary blinking of the MIL.
For details of OBD-II, refer to EC-48, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" .

Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-67, "
HAR-
NESS CONNECTOR" .
Wiring Diagrams and Trouble DiagnosisECS0 0CD N
When you read wiring diagrams, refer to the following:

GI-15, "How to Read Wiring Diagrams".

PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit.
When you perform trouble diagnosis, refer to the following:

GI-11, "How to Follow Trouble Diagnoses".

GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident".