Infiniti FX35, FX50 (S51). Manual — part 262
C1145, C1146 YAW RATE/SIDE G SENSOR
BRC-79
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> INSPECTION END
Special Repair Requirement
INFOID:0000000005528334
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> END
BRC-80
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1147, C1148, C1149, C1150 USV/HSV LINE
C1147, C1148, C1149, C1150 USV/HSV LINE
Description
INFOID:0000000005234571
USV1, USV2 (CUT VALVE)
The cut valve shuts off the normal brake fluid path from the master cylinder, when VDC/TCS is activated.
HSV1, HSV2 (SUCTION VALVE)
The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated.
DTC Logic
INFOID:0000000005234572
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch ON.
2.
Perform self-diagnosis for “ABS” with CONSULT-III.
Is DTC “C1147”, “C1148”, “C1149” or “C1150” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005234573
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY POWER SUPPLY CIRCUIT
Check the voltage between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1147
USV LINE[FL-RR]
VDC switch-over solenoid valve (USV1) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
• Harness or connector
• ABS actuator and electric unit
(control unit)
C1148
USV LINE[FR-RL]
VDC switch-over solenoid valve (USV2) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
C1149
HSV LINE[FL-RR]
VDC switch-over solenoid valve (HSV1) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
C1150
HSV LINE[FR-RL]
VDC switch-over solenoid valve (HSV2) on the primary
side is open circuit or shorted, or the control line is open
or shorted to the power supply or the ground.
ABS actuator and electric unit (control unit)
—
Voltage
Connector
Terminal
E41
3
Ground
Battery voltage
C1147, C1148, C1149, C1150 USV/HSV LINE
BRC-81
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
3.
CHECK SOLENOID, VDC SWITCH-OVER VALVE AND ACTUATOR RELAY GROUND CIRCUIT
Check the continuity between ABS actuator and electric unit (control unit) harness connector and ground.
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Repair or replace error-detected parts.
Special Repair Requirement
INFOID:0000000005528337
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> END
ABS actuator and electric unit (control unit)
—
Continuity
Connector
Terminal
E41
1
Ground
Existed
4
BRC-82
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1154 TRANSMISSION RANGE SWITCH
C1154 TRANSMISSION RANGE SWITCH
Description
INFOID:0000000005234576
The ABS actuator and electric unit (control unit) and TCM exchange signals via the CAN communication line.
DTC Logic
INFOID:0000000005234577
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch ON.
2.
Perform self-diagnosis for “ABS” with CONSULT-III.
Is DTC “C1154” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005234578
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Check terminal for deformation, disconnection, looseness, etc.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace or repair damaged parts.
2.
CHECK TCM
Perform self-diagnosis for “TRANSMISSION” with CONSULT-III.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis for “ABS” with CONSULT-III.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace error-detected parts.
Special Repair Requirement
INFOID:0000000005528342
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actua-
tor and electric unit (control unit). Refer to
BRC-9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEU-
>> END
DTC
Display item
Malfunction detected condition
Possible cause
C1154
PNP POSI SIG
TCM internal malfunction or ABS actuator and electric
unit (control unit) internal malfunction.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• TCM
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