Steering INFINITI FX35 2004 Manual PDF

TROUBLE DIAGNOSIS
BRC-43
[VDC/TCS/ABS]
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Revision: 2004 November 2004 FX35/FX45
3. CHECK STEERING ANGLE SENSOR HARNESS
1. Check CAN communication system. Refer to BRC-53, "
Inspection 14: CAN Communication System" .
2. Turn ignition switch OFF and disconnect steering angle sensor connector.
3. Check continuity between steering angle sensor harness con-
nector M14 and ground.
4. Check voltage between steering angle sensor harness connec-
tor M14 and ground.
OK or NG
OK >> GO TO 4.
NG >> If the open or short in harness, repair or replace harness.
4. CHECK STEERING WHEEL PLAY
Check steering wheel play. Refer to PS-10, "
CHECKING STEERING WHEEL PLAY" .
OK or NG
OK >> GO TO 5
NG >> Adjustment steering wheel play.
SFIA1189E
Steering angle sensor
(Harness connector M14)Ground Continuity
2 (B) — Yes
SFIA1190E
Steering angle sensor
(Harness connector M14)GroundVoltage (V)
(Approx.)
3 (G/R) — 12V

BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
5. PERFORM DATA MONITOR
1. Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.
2. Perform “DATA MONITOR” of the “STEERING ANGLE SIGNAL” to check if the status is normal.
OK or NG
OK >> Re-perform ABS actuator and electric unit (control unit) self-diagnosis.
NG >> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to BRC-
6, "Adjustment of Steering Angle Sensor Neutral Position" .
Inspection 6: Yaw Rate/Side G-Sensor (2WD model), Yaw Rate/Side/Decel G-
sensor (AWD models) System
AFS001SY
DTC C1145, C1146, C1113
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc. May cause the G-sensor system
indicate a malfunction. However, this is not a malfunction, if normal operation can be resumed after
restarting engine.
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
CAUTION:
When on a turntable, such as at a parking structure entrance, or when on a moving object with engine
running, VDC OFF indicator lamp might turn on and self-diagnosis using CONSULT-II the yaw rate sen-
sor system might be displayed, but in this case there is no malfunction in yaw rate sensor system. As
soon as vehicle leaves turntable or moving object, restart engine to return the system to normal.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect G-sensor connector and ABS actuator and electric unit (control unit) connector and check ter-
minals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace
terminal.
2. Reconnect connectors and re-perform a ABS actuator and electric unit (control unit) self-diagnosis.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
Steering condition Data monitor
Straight-ahead -3.5 deg - +3.5 deg
Turn wheel to the right by 90°. Approx. -90 deg
Turn wheel to the left by 90°. Approx. +90 deg
Self-diagnostic results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT
G-SENSOR (AWD model)

BRC-52
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Inspection 12: When “ST ANG SEN SIGNAL” Appears on Self-Diagnosis
Results Display
AFS0021V
DTC C1144
INSPECTION PROCEDURE
1. CHECK SELF DIAGNOSIS RESULTS (1)
Check self-diagnosis results.
Dose anything besides
“ST ANG SEN SIGNAL” appear on self-diagnosis results display?
YES >> Inspect and repair the indicated items. Then perform self-diagnosis again.
NO >> Perform adjustment of steering angle sensor neutral position. Then GO TO 2.
2. CHECK SELF DIAGNOSIS RESULTS (2)
Turn ignition switch OFF and ON to erase self-diagnosis results, and perform ABS actuator and electric unit
(control unit) self-diagnosis again.
Dose anything appear on self-diagnosis results display?
YES >> Replace steering angle sensor. Then perform adjustment of neutral position and perform self-
diagnosis again.
NO >> INSPECTION END.
Inspection 13: When “DECEL G SEN SET” Appears on Self-Diagnosis Results
Display (AWD Model)
AFS0021W
DTC C1160
INSPECTION PROCEDURE
1. CHECK SELF DIAGNOSIS RESULTS (1)
Check self-diagnosis results.
Dose anything besides
“DECEL G SEN SET” appear on self-diagnosis results display?
YES >> Inspect and repair the indicated items. Then perform self-diagnosis again.
NO >> Perform calibration of Decel G Sensor. Then GO TO 2.
2. CHECK SELF-DIAGNOSIS RESULTS (2)
Turn ignition switch OFF and ON to erase self-diagnosis results, and perform ABS actuator and electric unit
(control unit) self-diagnosis again.
Dose anything appear on self-diagnosis results display?
YES >> Replace Yaw rate/side/decel G sensor. Then perform adjustments of neutral position and perform
self-diagnosis again.
NO >> INSPECTION END.
Self-diagnosis results
ST ANG SEN SIGNAL
Self-diagnosis results
DECEL G SEN SET

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
BRC-61
[VDC/TCS/ABS]
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BRC
Revision: 2004 November 2004 FX35/FX45

After installing vehicle harness connector in the actuator, make sure connector is securely locked.

When replacing ABS actuator and electric unit (control unit), calibrate Steering angle sensor neu-
tral position and Decel G sensor. Refer to BRC-6, "
ON-VEHICLE SERVICE" .
NOTE:

After performing above works, calibrate decel G-sensor (AWD model). Refer to BRC-6, "Calibration of
Decel G-sensor (AWD Model)" .

In the case that ABS actuator and electric unit (control unit) are replaced, make sure to adjust position of
steering angle sensor. Refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Position" .

STEERING ANGLE SENSOR
BRC-63
[VDC/TCS/ABS]
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Revision: 2004 November 2004 FX35/FX45
STEERING ANGLE SENSORPFP:25554
Removal and InstallationAFS0021I
REMOVAL
1. Remove spiral cable assembly. Refer to SRS-38, "SPIRAL CABLE" .
2. Remove steering angle sensor from spiral cable assembly.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After work, make sure to adjust neutral position of steering angle sensor. Refer to BRC-6, "
Adjustment of
Steering Angle Sensor Neutral Position" .
SFIA1404E

BRC-64
[VDC/TCS/ABS]
STEERING ANGLE SENSOR
Revision: 2004 November 2004 FX35/FX45

EC-6Revision: 2004 November 2004 FX35/FX45 DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ...............................494
Description ............................................................494
CONSULT-II Reference Value in Data Monitor Mode
.494
On Board Diagnosis Logic ....................................495
DTC Confirmation Procedure ...............................495
Wiring Diagram .....................................................496
Diagnostic Procedure ...........................................498
Component Inspection ..........................................501
Removal and Installation ......................................501
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................502
Component Description ........................................502
CONSULT-II Reference Value in Data Monitor Mode
.502
On Board Diagnosis Logic ....................................502
DTC Confirmation Procedure ...............................503
Wiring Diagram .....................................................504
Diagnostic Procedure ...........................................505
Component Inspection ..........................................506
DTC P1564 ICC STEERING SWITCH ....................508
Component Description ........................................508
CONSULT-II Reference Value in Data Monitor Mode
.508
On Board Diagnosis Logic ....................................508
DTC Confirmation Procedure ...............................508
Wiring Diagram .....................................................510
Diagnostic Procedure ...........................................511
Component Inspection ..........................................514
DTC P1564 ASCD STEERING SWITCH ................515
Component Description ........................................515
CONSULT-II Reference Value in Data Monitor Mode
.515
On Board Diagnosis Logic ....................................515
DTC Confirmation Procedure ...............................516
Wiring Diagram .....................................................517
Diagnostic Procedure ...........................................518
Component Inspection ..........................................520
DTC P1568 ICC FUNCTION ...................................521
On Board Diagnosis Logic ....................................521
DTC Confirmation Procedure ...............................521
Diagnostic Procedure ...........................................521
DTC P1572 ICC BRAKE SWITCH ..........................522
Component Description ........................................522
CONSULT-II Reference Value in Data Monitor Mode
.522
On Board Diagnosis Logic ....................................522
DTC Confirmation Procedure ...............................523
Wiring Diagram .....................................................524
Diagnostic Procedure ...........................................525
Component Inspection ..........................................530
DTC P1572 ASCD BRAKE SWITCH ......................532
Component Description ........................................532
CONSULT-II Reference Value in Data Monitor Mode
.532
On Board Diagnosis Logic ....................................532
DTC Confirmation Procedure ...............................533
Wiring Diagram .....................................................534Diagnostic Procedure ............................................535
Component Inspection ..........................................540
DTC P1574 ICC VEHICLE SPEED SENSOR .........541
Component Description ........................................541
On Board Diagnosis Logic ....................................541
DTC Confirmation Procedure ................................541
Diagnostic Procedure ............................................542
DTC P1574 ASCD VEHICLE SPEED SENSOR .....543
Component Description ........................................543
On Board Diagnosis Logic ....................................543
DTC Confirmation Procedure ................................543
Diagnostic Procedure ............................................544
DTC P1706 PNP SWITCH .......................................545
Component Description ........................................545
CONSULT-II Reference Value in Data Monitor Mode
.545
On Board Diagnosis Logic ....................................545
DTC Confirmation Procedure ................................545
Overall Function Check .........................................546
Wiring Diagram .....................................................547
Diagnostic Procedure ............................................548
DTC P1805 BRAKE SWITCH .................................550
Description ............................................................550
CONSULT-II Reference Value in Data Monitor Mode
.550
On Board Diagnosis Logic ....................................550
DTC Confirmation Procedure ................................550
Wiring Diagram .....................................................551
Diagnostic Procedure ............................................552
Component Inspection ..........................................554
DTC P2122, P2123 APP SENSOR .........................555
Component Description ........................................555
CONSULT-II Reference Value in Data Monitor Mode
.555
On Board Diagnosis Logic ....................................555
DTC Confirmation Procedure ................................556
Wiring Diagram .....................................................557
Diagnostic Procedure ............................................558
Component Inspection ..........................................560
Removal and Installation .......................................561
DTC P2127, P2128 APP SENSOR .........................562
Component Description ........................................562
CONSULT-II Reference Value in Data Monitor Mode
.562
On Board Diagnosis Logic ....................................562
DTC Confirmation Procedure ................................563
Wiring Diagram .....................................................564
Diagnostic Procedure ............................................565
Component Inspection ..........................................568
Removal and Installation .......................................568
DTC P2135 TP SENSOR ........................................569
Component Description ........................................569
CONSULT-II Reference Value in Data Monitor Mode
.569
On Board Diagnosis Logic ....................................569
DTC Confirmation Procedure ................................570
Wiring Diagram .....................................................571
Diagnostic Procedure ............................................572

EC-12Revision: 2004 November 2004 FX35/FX451095
On Board Diagnosis Logic ...................................1095
DTC Confirmation Procedure ..............................1095
Wiring Diagram ....................................................1096
Diagnostic Procedure ..........................................1099
Component Inspection .........................................11 0 2
Removal and Installation .....................................11 0 2
DTC P1143, P1163 HO2S1 ....................................110 3
Component Description .......................................11 0 3
CONSULT-II Reference Value in Data Monitor Mode
11 0 3
On Board Diagnosis Logic ...................................11 0 3
DTC Confirmation Procedure ..............................11 0 4
Overall Function Check .......................................11 0 5
Diagnostic Procedure ..........................................11 0 5
Component Inspection .........................................11 0 7
Removal and Installation .....................................11 0 8
DTC P1144, P1164 HO2S1 ....................................110 9
Component Description .......................................11 0 9
CONSULT-II Reference Value in Data Monitor Mode
11 0 9
On Board Diagnosis Logic ...................................11 0 9
DTC Confirmation Procedure ..............................111 0
Overall Function Check .......................................1111
Diagnostic Procedure ..........................................1111
Component Inspection .........................................111 3
Removal and Installation .....................................111 5
DTC P1146, P1166 HO2S2 ....................................111 6
Component Description .......................................111 6
CONSULT-II Reference Value in Data Monitor Mode
111 6
On Board Diagnosis Logic ...................................111 6
DTC Confirmation Procedure ..............................111 7
Overall Function Check .......................................111 7
Wiring Diagram ....................................................111 9
Diagnostic Procedure ..........................................11 2 2
Component Inspection .........................................11 2 5
Removal and Installation .....................................11 2 6
DTC P1147, P1167 HO2S2 ....................................112 7
Component Description .......................................11 2 7
CONSULT-II Reference Value in Data Monitor Mode
11 2 7
On Board Diagnosis Logic ...................................11 2 7
DTC Confirmation Procedure ..............................11 2 8
Overall Function Check .......................................11 2 8
Wiring Diagram ....................................................11 3 0
Diagnostic Procedure ..........................................11 3 3
Component Inspection .........................................11 3 6
Removal and Installation .....................................11 3 7
DTC P1148, P1168 CLOSED LOOP CONTROL ...113 8
On Board Diagnosis Logic ...................................11 3 8
DTC Confirmation Procedure ..............................11 3 8
Overall Function Check .......................................11 3 9
Diagnostic Procedure ..........................................11 3 9
DTC P1211 TCS CONTROL UNIT .........................114 0
Description ...........................................................11 4 0
On Board Diagnosis Logic ...................................11 4 0
DTC Confirmation Procedure ..............................11 4 0
Diagnostic Procedure ..........................................11 4 0DTC P1212 TCS COMMUNICATION LINE ............11 41
Description ...........................................................11 4 1
On Board Diagnosis Logic ...................................11 4 1
DTC Confirmation Procedure ...............................11 4 1
Diagnostic Procedure ...........................................11 4 1
DTC P1217 ENGINE OVER TEMPERATURE .......11 42
Description ...........................................................11 4 2
CONSULT-II Reference Value in Data Monitor Mode
11 4 3
On Board Diagnosis Logic ...................................11 4 3
Overall Function Check ........................................11 4 3
Wiring Diagram ....................................................11 4 5
Diagnostic Procedure ...........................................11 4 7
Main 12 Causes of Overheating ..........................11 5 0
Component Inspection .........................................11 5 1
DTC P1225 TP SENSOR .......................................11 52
Component Description .......................................11 5 2
On Board Diagnosis Logic ...................................11 5 2
DTC Confirmation Procedure ...............................11 5 2
Diagnostic Procedure ...........................................11 5 3
Removal and Installation ......................................11 5 3
DTC P1226 TP SENSOR .......................................11 54
Component Description .......................................11 5 4
On Board Diagnosis Logic ...................................11 5 4
DTC Confirmation Procedure ...............................11 5 4
Diagnostic Procedure ...........................................11 5 5
Removal and Installation ......................................11 5 5
DTC P1229 SENSOR POWER SUPPLY ...............11 56
On Board Diagnosis Logic ...................................11 5 6
DTC Confirmation Procedure ...............................11 5 6
Wiring Diagram ....................................................11 5 7
Diagnostic Procedure ...........................................11 5 8
DTC P1444 EVAP CANISTER PURGE VOLUME
CONTROL SOLENOID VALVE ..............................11 60
Description ...........................................................11 6 0
CONSULT-II Reference Value in Data Monitor Mode
11 6 0
On Board Diagnosis Logic ...................................11 6 1
DTC Confirmation Procedure ...............................11 6 1
Wiring Diagram ....................................................11 6 2
Diagnostic Procedure ...........................................11 6 4
Component Inspection .........................................11 6 7
Removal and Installation ......................................11 6 7
DTC P1446 EVAP CANISTER VENT CONTROL
VALVE .....................................................................11 68
Component Description .......................................11 6 8
CONSULT-II Reference Value in Data Monitor Mode
11 6 8
On Board Diagnosis Logic ...................................11 6 8
DTC Confirmation Procedure ...............................11 6 9
Wiring Diagram ....................................................11 7 0
Diagnostic Procedure ...........................................11 7 1
Component Inspection .........................................11 7 2
DTC P1564 ICC STEERING SWITCH ...................11 74
Component Description .......................................11 7 4
CONSULT-II Reference Value in Data Monitor Mode
11 7 4
On Board Diagnosis Logic ...................................11 7 4
DTC Confirmation Procedure ...............................11 7 4

EC-13
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ECA
Revision: 2004 November 2004 FX35/FX45Wiring Diagram ...................................................1176
Diagnostic Procedure ..........................................1177
Component Inspection ........................................1180
DTC P1564 ASCD STEERING SWITCH ...............1181
Component Description .......................................1181
CONSULT-II Reference Value in Data Monitor Mode
1181
On Board Diagnosis Logic ..................................1181
DTC Confirmation Procedure ..............................1182
Wiring Diagram ...................................................1183
Diagnostic Procedure ..........................................1184
Component Inspection ........................................1187
DTC P1568 ICC FUNCTION ..................................1188
On Board Diagnosis Logic ..................................1188
DTC Confirmation Procedure ..............................1188
Diagnostic Procedure ..........................................1188
DTC P1572 ICC BRAKE SWITCH ........................1189
Component Description .......................................1189
CONSULT-II Reference Value in Data Monitor Mode
1189
On Board Diagnosis Logic ..................................1189
DTC Confirmation Procedure ..............................1190
Wiring Diagram ...................................................1191
Diagnostic Procedure ..........................................1192
Component Inspection ........................................1197
DTC P1572 ASCD BRAKE SWITCH ....................1199
Component Description .......................................1199
CONSULT-II Reference Value in Data Monitor Mode
1199
On Board Diagnosis Logic ..................................1199
DTC Confirmation Procedure ..............................1200
Wiring Diagram ...................................................1201
Diagnostic Procedure ..........................................1202
Component Inspection ........................................1206
DTC P1574 ICC VEHICLE SPEED SENSOR .......1207
Component Description .......................................1207
On Board Diagnosis Logic ..................................1207
DTC Confirmation Procedure ..............................1207
Diagnostic Procedure ..........................................1208
DTC P1574 ASCD VEHICLE SPEED SENSOR ...1209
Component Description .......................................1209
On Board Diagnosis Logic ..................................1209
DTC Confirmation Procedure ..............................1209
Diagnostic Procedure ..........................................1210
DTC P1706 PNP SWITCH .....................................1211
Component Description .......................................1211
CONSULT-II Reference Value in Data Monitor Mode
1211
On Board Diagnosis Logic ..................................1211
DTC Confirmation Procedure ..............................1211
Overall Function Check .......................................1212
Wiring Diagram ...................................................1213
Diagnostic Procedure ..........................................1214
DTC P1720 VEHICLE SPEED SENSOR (A/T OUT-
PUT) .......................................................................1216
Description ..........................................................1216
CONSULT-II Reference Value in Data Monitor Mode
1216
On Board Diagnosis Logic ..................................1216DTC Confirmation Procedure ..............................1216
Diagnostic Procedure ..........................................1217
DTC P1780 SHIFT CHANGE SIGNAL ..................1218
Description ...........................................................1218
On Board Diagnosis Logic ...................................1218
DTC Confirmation Procedure ..............................1218
Diagnostic Procedure ..........................................1218
DTC P1805 BRAKE SWITCH ................................1220
Description ...........................................................1220
CONSULT-II Reference Value in Data Monitor Mode
1220
On Board Diagnosis Logic ...................................1220
DTC Confirmation Procedure ..............................1220
Wiring Diagram ....................................................1221
Diagnostic Procedure ..........................................1222
Component Inspection .........................................1224
DTC P2122, P2123 APP SENSOR ........................1225
Component Description .......................................1225
CONSULT-II Reference Value in Data Monitor Mode
1225
On Board Diagnosis Logic ...................................1225
DTC Confirmation Procedure ..............................1226
Wiring Diagram ....................................................1227
Diagnostic Procedure ..........................................1228
Component Inspection .........................................1230
Removal and Installation .....................................1231
DTC P2127, P2128 APP SENSOR ........................1232
Component Description .......................................1232
CONSULT-II Reference Value in Data Monitor Mode
1232
On Board Diagnosis Logic ...................................1232
DTC Confirmation Procedure ..............................1233
Wiring Diagram ....................................................1234
Diagnostic Procedure ..........................................1235
Component Inspection .........................................1238
Removal and Installation .....................................1238
DTC P2135 TP SENSOR .......................................1239
Component Description .......................................1239
CONSULT-II Reference Value in Data Monitor Mode
1239
On Board Diagnosis Logic ...................................1239
DTC Confirmation Procedure ..............................1240
Wiring Diagram ....................................................1241
Diagnostic Procedure ..........................................1242
Component Inspection .........................................1245
Removal and Installation .....................................1245
DTC P2138 APP SENSOR ....................................1246
Component Description .......................................1246
CONSULT-II Reference Value in Data Monitor Mode
1246
On Board Diagnosis Logic ...................................1246
DTC Confirmation Procedure ..............................1247
Wiring Diagram ....................................................1248
Diagnostic Procedure ..........................................1249
Component Inspection .........................................1253
Removal and Installation .....................................1253
VARIABLE INDUCTION AIR CONTROL SYSTEM
(VIAS) .....................................................................1254
Description ...........................................................1254

ENGINE CONTROL SYSTEM
EC-31
[VQ35DE]
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Revision: 2004 November 2004 FX35/FX45
System ChartABS006K6
*1: This sensor is not used to control the engine system. This is used only for the on board diagnosis.
*2: This sensor is not used to control the engine system under normal conditions.
*3: This input signal is sent to the ECM through CAN communication line.
*4: This output signal is sent from the ECM through CAN communication line.Input (Sensor) ECM Function Output (Actuator)

Camshaft position sensor (PHASE)

Crankshaft position sensor (POS)

Mass air flow sensor

Engine coolant temperature sensor

Heated oxygen sensor 1

Throttle position sensor

Accelerator pedal position sensor

Park/neutral position (PNP) switch

Intake air temperature sensor

Power steering pressure sensor

Ignition switch

Battery voltage

Knock sensor

Refrigerant pressure sensor

Stop lamp switch

ICC steering switch

ICC brake switch

ASCD steering switch

ASCD brake switch

Fuel level sensor*1 *3

EVAP control system pressure sensor

Fuel tank temperature sensor*1

Heated oxygen sensor 2*2

TCM (Transmission control module)*3

ABS actuator and electric unit (control unit)*3

ICC unit*3

Air conditioner switch*3

Wheel sensor*3

Electrical load signal*3
Fuel injection & mixture ratio control Fuel injector
Electronic ignition system Power transistor
Fuel pump control Fuel pump relay
ICC vehicle speed control Electric throttle control actuator
ASCD vehicle speed control Electric throttle control actuator
On board diagnostic system
MIL (On the instrument panel)*
4
Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater
Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater
EVAP canister purge flow controlEVAP canister purge volume control
solenoid valve
Air conditioning cut control
Air conditioner relay*
4
Cooling fan control
Cooling fan relay*4
ON BOARD DIAGNOSIS for EVAP system EVAP canister vent control valve