2005 INFINITI FX35 Service Manual

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Page 1185 of 4731

INFINITI FX35 2005 Service Manual BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
5. PERFORM DATA MONITOR
1. Connect steering angle sensor and ABS actuator and electric unit (control unit) connectors.
2. Perform �

BRC-44
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
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 >> Perform ABS actuator and electric unit (control unit) self-diagnosis again.
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 sen-
sor (AWD Models) Circuit
AFS001SY
DTC C1145, C1146, C1113
CAUTION:
Sudden turns (such as spin turns, acceleration turns), drifting, etc. may cause the G sensor circuit
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 circuit. 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 perform a ABS actuator and electric unit (control unit) self-diagnosis again.
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)

Page 1186 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-45
[VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
Revision: 2005 July 2005 FX
3. CHECK G SENSOR HARNESS
1. Turn ignition switch OFF and disconnect G sensor connector an

Page 1187 of 4731

INFINITI FX35 2005 Service Manual BRC-46
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Inspection 7: Solenoid and VDC Change-Over Valve CircuitAFS001SZ
DTC C1120-C1127, C1164-C1167
INSPECTION PROCEDURE
1. CHECK SELF-DIAG

Page 1188 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-47
[VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
Revision: 2005 July 2005 FX
3. CHECK SOLENOID POWER AND GROUND CIRCUIT
1. Disconnect ABS actuator and electric unit (co

Page 1189 of 4731

INFINITI FX35 2005 Service Manual BRC-48
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
3. CHECK ABS MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. C

Page 1190 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-49
[VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
Revision: 2005 July 2005 FX
3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT (1)
1. Disconne

Page 1191 of 4731

INFINITI FX35 2005 Service Manual BRC-50
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Inspection 10: Stop Lamp Switch CircuitAFS001T2
DTC C1116
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagn

Page 1192 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-51
[VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
Revision: 2005 July 2005 FX
Inspection 11: Brake Fluid Level Switch CircuitAFS001T4
DTC C1155
INSPECTION PROCEDURE
1. CH

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