INFINITI FX35 2004 Manual PDF

ACS-62
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
Symptom 4: The ICC System Is Not Cancelled When the Gear Is in Other Than
‘D’.
AKS006ZR
1. CHECK D RANGE SWITCH
With CONSULT-II
1. With data monitor, check that “D RANGE SW” operates normally.Refer to ACS-32, "
DATA MONITOR" .
OK or NG
OK >> After replacing ICC unit, erase DTC. Perform ICC system running test, and then perform self-diag-
nosis of ICC system again.
NG >> GO TO 2.
2. CHECK CAN COMMUNICATION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check that “CAN COMM CIRCUIT” item exists.
OK or NG
OK >> GO TO 3.
NG >> Refer to ACS-41, "
DTC 20 CAN COMM CIRCUIT" .
3. CHECK D RANGE SWITCH
1. With TCM data monitor, check that “D” position switch operates normally.
OK or NG
OK >> After replacing ICC unit. Perform ICC system running test, and then perform self-diagnosis of ICC
system again.
NG >> After repairing or replacing malfunctioning part. Perform ICC system running test, and then per-
form self-diagnosis of ICC system again.
Symptom 5: Chime Does Not Sound.AKS006ZS
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).

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 malfunction in detecting the vehicle ahead, check the system following the ACS-63, "
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, check that ICC warning chime operates normally.
OK or NG
OK >> Determine preceding vehicle detection status when malfunction occurred. If chime should have
sounded: after replacing ICC unit. Perform ICC system running test, and then perform self-diag-
nosis of ICC system again.
NG >> GO TO 2.

TROUBLE DIAGNOSIS FOR SYMPTOMS
ACS-63
[ICC]
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Revision: 2004 November 2004 FX35/FX45
2. CAN COMMUNICATION INSPECTION
With CONSULT-II
1. With CONSULT-II self-diagnosis, check that “CAN COMM CIRCUIT” item exists.
OK or NG
OK >> Refer to ACS-41, "DTC 20 CAN COMM CIRCUIT" .
NG >> After replacing combination meter, erase DTC. Perform ICC system running test, and then per-
form self-diagnosis of ICC system again.
Symptom 6: Driving Force Is Hunting.AKS006ZU
1. CHECK ECM
1. Perform self-diagnosis of ECM.
OK or NG
OK >> Refer toACS-63, "Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone Is Short." .
NG >> After repairing applicable parts, erase DTC. Perform ICC system running test, and then perform
self-diagnosis of ICC system again.
Symptom 7: The ICC System Frequently Cannot Detect the Vehicle Ahead/The
Detection Zone Is Short.
AKS006ZV
The detection function may become unstable in the following cases:

When the reflector of the vehicle ahead is deficient/ not clean enough to reflect the radar.

When driving a road with extremely sharp corners.

When the radar 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.
NG >> GO TO 2.
2. CHECK FUNCTION
1. After adjusting ICC sensor beam aiming, perform 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.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.
Symptom 8: The System Does Not Detect the Vehicle Ahead at All.AKS006ZW
1. VISUAL CHECK
1. With ignition switch turned ON (engine not started), check that all indicator lamps in ICC system display
are continuously lit. (Check for a missing segment in preceding vehicle detection display.)
OK or NG
OK >> GO TO 2.
NG >> Check for combination meter. Refer to DI-13, "
How to Proceed With Trouble Diagnosis" in DI.

ACS-64
[ICC]
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
2. VISUAL CHECK

Check ICC sensor body window for contamination and foreign materials.
OK or NG
OK >> If any contamination or foreign materials are found, remove them. Perform ICC system running
test.
NG >> GO TO 3.
3. VISUAL CHECK

Check ICC sensor body window for cracks and scratches.
OK or NG
OK >> GO TO 4.
NG >>

Replace ICC sensor, and perform laser beam aiming adjustment.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.
4. ADJUST ICC SENSOR
1. After adjusting ICC sensor beam aiming, perform 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.

After performing above. Perform ICC system running test, and then perform self-diagnosis of
ICC system again.

ELECTRICAL COMPONENT INSPECTION
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Revision: 2004 November 2004 FX35/FX45
ELECTRICAL COMPONENT INSPECTIONPFP:00000
ICC Steering SwitchAKS006ZX
1. Disconnect ICC steering switch.
2. Check resistance between M203 terminals 14 and 15 by
depressing each switch.
ICC Brake Switch and Stop Lamp SwitchAKS006ZY
Check each switch after adjusting brake pedal, refer to BR-6,
"BRAKE PEDAL" .
Booster SolenoidAKS006ZZ
Disconnect booster solenoid/release switch connector, and check
resistance value between terminals 4 and 6.
Switch Condition Resistance [Ω]
ON/OFF Depressed Approx. 0
Released Approx. 5,456
DISTANCE Depressed Approx. 741
Released Approx. 5,456
ACCEL/RES Depressed Approx. 2,586
Released Approx. 5,456
COAST/SET Depressed Approx. 1,406
Released Approx. 5,456
CANCEL Depressed Approx. 309
Released Approx. 5,456
SKIA5983E
Continuity
ICC brake switch Stop lamp switch
When brake pedal is depressed No Yes
When brake pedal is released Yes No
SKIA5984E
4 - 6 :Approx. 1.4Ω
SKIA1255E

ACS-66
[ICC]
ELECTRICAL COMPONENT INSPECTION
Revision: 2004 November 2004 FX35/FX45
Release SwitchAKS00700
Disconnect booster solenoid/release switch connector and check
resistance between the terminals.
NOTE:
If pedal is depressed insufficiently, resistance value may remain unchanged.Condition 1 - 3 1 - 2 2 - 3
Release the brake pedal.Continuity
should exist.Continuity
should not
exist.Continu-
ity should
not exist.
Depress the brake pedal.Continuity
should not
exist. (Note)Continuity
should
exist.
(Note)Continu-
ity should
not exist.SKIA1256E

REMOVAL AND INSTALLATION
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Revision: 2004 November 2004 FX35/FX45
REMOVAL AND INSTALLATIONPFP:00000
ICC UnitAKS00704
ICC SensorAKS00705
CAUTION:
Adjust the laser beam aiming every time the ICC sensor is removed or installed.
ICC Steering SwitchAKS00707
Replace ICC steering switch as steering wheel assembly. Refer to PS-11, "Removal and Installation" .
SKIA5985E
SKIA5986E

ACS-68
[ICC]
REMOVAL AND INSTALLATION
Revision: 2004 November 2004 FX35/FX45

AT-1
AUTOMATIC TRANSMISSION
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION AT
A
B
AT
Revision: 2004 November 2004 FX35/FX45
AUTOMATIC TRANSMISSION
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 ....................................... 11
A/T FLUID ................................................................. 12
Changing A/T Fluid ................................................ 12
Checking A/T Fluid ................................................. 12
A/T Fluid Cooler Cleaning ...................................... 14
A/T CONTROL SYSTEM .......................................... 17
Cross-Sectional View (2WD Models) ..................... 17
Cross-Sectional View (AWD Models) ..................... 18
Shift Mechanism ..................................................... 19
TCM Function ......................................................... 30
CAN Communication .............................................. 31
Input/Output Signal of TCM .................................... 31
Line Pressure Control ............................................ 32
Shift Control ........................................................... 33
Lock-up Control ...................................................... 34
Engine Brake Control ............................................. 36
Control Valve .......................................................... 36
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 38
Introduction ............................................................ 38
OBD-II Function for A/T System ............................. 38
One or Two Trip Detection Logic of OBD-II ............ 38
OBD-II Diagnostic Trouble Code (DTC) ................. 38
Malfunction Indicator Lamp (MIL) ........................... 41
TROUBLE DIAGNOSIS ............................................ 42
DTC Inspection Priority Chart ................................ 42
Fail-Safe ................................................................. 42How To Perform Trouble Diagnosis For Quick and
Accurate Repair ...................................................... 44
A/T Electrical Parts Location .................................. 49
Circuit Diagram ....................................................... 50
Inspections Before Trouble Diagnosis .................... 51
Check Before Engine is Started .............................. 55
Check at Idle ........................................................... 55
Cruise Test - Part 1 ................................................. 57
Cruise Test - Part 2 ................................................. 60
Cruise Test - Part 3 ................................................. 61
Vehicle Speed When Shifting Gears ...................... 62
Vehicle Speed When Performing and Releasing
Complete Lock-up .................................................. 63
Vehicle Speed When Performing and Releasing
Slip Lock-up ............................................................ 64
Symptom Chart ....................................................... 65
TCM Input/Output Signal Reference Values ........... 90
CONSULT-II ............................................................ 91
Diagnostic Procedure Without CONSULT-II .........103
DTC U1000 CAN COMMUNICATION LINE ............105
Description ............................................................105
On Board Diagnosis Logic ....................................105
Possible Cause .....................................................105
DTC Confirmation Procedure ...............................105
Wiring Diagram — AT — CAN ..............................106
Diagnostic Procedure ...........................................107
DTC P0615 START SIGNAL CIRCUIT ...................108
Description ............................................................108
CONSULT-II Reference Value ..............................108
On Board Diagnosis Logic ....................................108
Possible Cause .....................................................108
DTC Confirmation Procedure ...............................108
Wiring Diagram — AT — STSIG ..........................109
Diagnostic Procedure ...........................................110
DTC P0705 PARK/NEUTRAL POSITION SWITCH .112
Description ............................................................112
CONSULT-II Reference Value ..............................112
On Board Diagnosis Logic ....................................112
Possible Cause .....................................................112
DTC Confirmation Procedure ...............................112

AT-2Revision: 2004 November 2004 FX35/FX45Wiring Diagram — AT — PNP/SW .......................113
Diagnostic Procedure ...........................................114
DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR) ...............................................116
Description ............................................................116
CONSULT-II Reference Value ..............................116
On Board Diagnosis Logic ....................................116
Possible Cause .....................................................116
DTC Confirmation Procedure ...............................116
Wiring Diagram — AT — VSSA/T .........................118
Diagnostic Procedure ...........................................119
DTC P0725 ENGINE SPEED SIGNAL ...................121
Description ............................................................121
CONSULT-II Reference Value ..............................121
On Board Diagnosis Logic ....................................121
Possible Cause .....................................................121
DTC Confirmation Procedure ...............................121
Diagnostic Procedure ...........................................121
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE .................................................123
Description ............................................................123
CONSULT-II Reference Value ..............................123
On Board Diagnosis Logic ....................................123
Possible Cause .....................................................123
DTC Confirmation Procedure ...............................123
Diagnostic Procedure ...........................................124
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP) .125
Description ............................................................125
CONSULT-II Reference Value ..............................125
On Board Diagnosis Logic ....................................125
Possible Cause .....................................................125
DTC Confirmation Procedure ...............................125
Diagnostic Procedure ...........................................126
DTC P0745 LINE PRESSURE SOLENOID VALVE .127
Description ............................................................127
CONSULT-II Reference Value ..............................127
On Board Diagnosis Logic ....................................127
Possible Cause .....................................................127
DTC Confirmation Procedure ...............................127
Diagnostic Procedure ...........................................128
DTC P1701 TRANSMISSION CONTROL MODULE
(POWER SUPPLY) ..................................................129
Description ............................................................129
On Board Diagnosis Logic ....................................129
Possible Cause .....................................................129
DTC Confirmation Procedure ...............................129
Wiring Diagram — AT — POWER ........................130
Diagnostic Procedure ...........................................131
DTC P1702 TRANSMISSION CONTROL MODULE
(RAM) ......................................................................133
Description ............................................................133
On Board Diagnosis Logic ....................................133
Possible Cause .....................................................133
DTC Confirmation Procedure ...............................133
Diagnostic Procedure ...........................................133
DTC P1703 TRANSMISSION CONTROL MODULE
(ROM) ......................................................................134
Description ............................................................134
On Board Diagnosis Logic ....................................134Possible Cause .....................................................134
DTC Confirmation Procedure ................................134
Diagnostic Procedure ............................................134
DTC P1704 TRANSMISSION CONTROL MODULE
(EEPROM) ...............................................................135
Description ............................................................135
On Board Diagnosis Logic ....................................135
Possible Cause .....................................................135
DTC Confirmation Procedure ................................135
Diagnostic Procedure ............................................135
DTC P1705 THROTTLE POSITION SENSOR ........136
Description ............................................................136
CONSULT-II Reference Value ...............................136
On Board Diagnosis Logic ....................................136
Possible Cause .....................................................136
DTC Confirmation Procedure ................................136
Diagnostic Procedure ............................................136
DTC P1710 A/T FLUID TEMPERATURE SENSOR
CIRCUIT ..................................................................139
Description ............................................................139
CONSULT-II Reference Value ...............................139
On Board Diagnosis Logic ....................................139
Possible Cause .....................................................139
DTC Confirmation Procedure ................................139
Wiring Diagram — AT — FTS ...............................140
Diagnostic Procedure ............................................141
Component Inspection ..........................................142
DTC P1716 TURBINE REVOLUTION SENSOR ....143
Description ............................................................143
CONSULT-II Reference Value ...............................143
On Board Diagnosis Logic ....................................143
Possible Cause .....................................................143
DTC Confirmation Procedure ................................143
Diagnostic Procedure ............................................144
DTC P1721 VEHICLE SPEED SENSOR MTR .......145
Description ............................................................145
CONSULT-II Reference Value ...............................145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ................................145
Diagnostic Procedure ............................................146
DTC P1730 A/T INTERLOCK .................................147
Description ............................................................147
On Board Diagnosis Logic ....................................147
Possible Cause .....................................................147
DTC Confirmation Procedure ................................147
Judgement of A/T Interlock ...................................147
Diagnostic Procedure ............................................148
DTC P1731 A/T 1ST ENGINE BRAKING ...............150
Description ............................................................150
CONSULT-II Reference Value ...............................150
On Board Diagnosis Logic ....................................150
Possible Cause .....................................................150
DTC Confirmation Procedure ................................150
Diagnostic Procedure ............................................151
DTC P1752 INPUT CLUTCH SOLENOID VALVE ..152
Description ............................................................152
CONSULT-II Reference Value ...............................152
On Board Diagnosis Logic ....................................152

AT-3
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AT
Revision: 2004 November 2004 FX35/FX45Possible Cause .................................................... 152
DTC Confirmation Procedure ............................... 152
Diagnostic Procedure ........................................... 153
DTC P1754 INPUT CLUTCH SOLENOID VALVE
FUNCTION .............................................................. 154
Description ........................................................... 154
CONSULT-II Reference Value .............................. 154
On Board Diagnosis Logic ................................... 154
Possible Cause .................................................... 154
DTC Confirmation Procedure ............................... 154
Diagnostic Procedure ........................................... 155
DTC P1757 FRONT BRAKE SOLENOID VALVE .. 156
Description ........................................................... 156
CONSULT-II Reference Value .............................. 156
On Board Diagnosis Logic ................................... 156
Possible Cause .................................................... 156
DTC Confirmation Procedure ............................... 156
Diagnostic Procedure ........................................... 157
DTC P1759 FRONT BRAKE SOLENOID VALVE
FUNCTION .............................................................. 158
Description ........................................................... 158
CONSULT-II Reference Value .............................. 158
On Board Diagnosis Logic ................................... 158
Possible Cause .................................................... 158
DTC Confirmation Procedure ............................... 158
Diagnostic Procedure ........................................... 159
DTC P1762 DIRECT CLUTCH SOLENOID VALVE . 160
Description ........................................................... 160
CONSULT-II Reference Value .............................. 160
On Board Diagnosis Logic ................................... 160
Possible Cause .................................................... 160
DTC Confirmation Procedure ............................... 160
Diagnostic Procedure ........................................... 161
DTC P1764 DIRECT CLUTCH SOLENOID VALVE
FUNCTION .............................................................. 162
Description ........................................................... 162
CONSULT-II Reference Value .............................. 162
On Board Diagnosis Logic ................................... 162
Possible Cause .................................................... 162
DTC Confirmation Procedure ............................... 162
Diagnostic Procedure ........................................... 163
DTC P1767 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE ................................................. 164
Description ........................................................... 164
CONSULT-II Reference Value .............................. 164
On Board Diagnosis Logic ................................... 164
Possible Cause .................................................... 164
DTC Confirmation Procedure ............................... 164
Diagnostic Procedure ........................................... 165
DTC P1769 HIGH AND LOW REVERSE CLUTCH
SOLENOID VALVE FUNCTION ............................. 166
Description ........................................................... 166
CONSULT-II Reference Value .............................. 166
On Board Diagnosis Logic ................................... 166
Possible Cause .................................................... 166
DTC Confirmation Procedure ............................... 166
Diagnostic Procedure ........................................... 167
DTC P1772 LOW COAST BRAKE SOLENOID
VALVE ..................................................................... 168Description ............................................................168
CONSULT-II Reference Value ..............................168
On Board Diagnosis Logic ....................................168
Possible Cause .....................................................168
DTC Confirmation Procedure ...............................168
Diagnostic Procedure ...........................................169
DTC P1774 LOW COAST BRAKE SOLENOID
VALVE FUNCTION ..................................................170
Description ............................................................170
CONSULT-II Reference Value ..............................170
On Board Diagnosis Logic ....................................170
Possible Cause .....................................................170
DTC Confirmation Procedure ...............................170
Diagnostic Procedure ...........................................171
DTC P1815 MANUAL MODE SWITCH ..................172
Description ............................................................172
CONSULT-II Reference Value in Data Monitor Mode
.172
On Board Diagnosis Logic ....................................172
Possible Cause .....................................................172
DTC Confirmation Procedure ...............................172
Wiring Diagram — AT — MMSW .........................173
Diagnostic Procedure ...........................................175
Component Inspection ..........................................176
A/T Position Indicator ...........................................177
DTC P1841 ATF PRESSURE SWITCH 1 ...............178
Description ............................................................178
CONSULT-II Reference Value ..............................178
On Board Diagnosis Logic ....................................178
Possible Cause .....................................................178
DTC Confirmation Procedure ...............................178
Diagnostic Procedure ...........................................179
DTC P1843 ATF PRESSURE SWITCH 3 ...............180
Description ............................................................180
CONSULT-II Reference Value ..............................180
On Board Diagnosis Logic ....................................180
Possible Cause .....................................................180
DTC Confirmation Procedure ...............................180
Diagnostic Procedure ...........................................181
DTC P1845 ATF PRESSURE SWITCH 5 ...............182
Description ............................................................182
CONSULT-II Reference Value ..............................182
On Board Diagnosis Logic ....................................182
Possible Cause .....................................................182
DTC Confirmation Procedure ...............................182
Diagnostic Procedure ...........................................183
DTC P1846 ATF PRESSURE SWITCH 6 ...............184
Description ............................................................184
CONSULT-II Reference Value ..............................184
On Board Diagnosis Logic ....................................184
Possible Cause .....................................................184
DTC Confirmation Procedure ...............................184
Diagnostic Procedure ...........................................185
CLOSED THROTTLE POSITION AND WIDE OPEN
THROTTLE POSITION CIRCUIT ............................186
CONSULT-II Reference Value ..............................186
Diagnostic Procedure ...........................................186
BRAKE SIGNAL CIRCUIT ......................................187