Infiniti FX35, FX50 (S51). Manual — part 260
C1137 RAS CIRCUIT
BRC-71
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
C1137 RAS CIRCUIT
Description
INFOID:0000000005234549
The ABS actuator and electric unit (control unit) and the RAS control unit exchange signals via the CAN com-
munication line.
DTC Logic
INFOID:0000000005234550
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 “C1137” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005234551
1.
CHECK RAS CONTROL UNIT
Perform self-diagnosis for “4WAS(MAIN)/RAS/HICAS” with CONSULT-III.
Is any item indicated on the self-diagnosis display?
YES
>> Repair or replace error-detected parts.
NO
>> GO TO 2.
2.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
1.
Erase self-diagnosis results for “ABS” with CONSULT-III.
2.
Turn the ignition switch OFF.
3.
Start the engine. Drive the vehicle for a while.
4.
Make sure that RAS warning lamp turns OFF.
5.
Stop the engine. Perform self-diagnosis for “ABS” with CONSULT-III.
Is any item indicated on the self-diagnosis display?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection
with harness connector. If any items and damaged, repair or replace error-detected parts.
Special Repair Requirement
INFOID:0000000005528316
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
C1137
RAS CIRCUIT
When RAS control unit is malfunction.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• RAS control unit
• CAN communication line
BRC-72
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1142 PRESS SENSOR
C1142 PRESS SENSOR
Description
INFOID:0000000005234553
The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator
and electric unit (control unit). [The pressure sensor is integrated in the ABS actuator and electric unit (control
unit).]
DTC Logic
INFOID:0000000005234554
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 “C1142” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005234555
1.
CHECK STOP LAMP SWITCH
Check stop lamp switch system. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunction component.
2.
CHECK BRAKE SYSTEM
1.
Check brake fluid leakage: Refer to
2.
Check front brake piping: Refer to
.
3.
Check rear brake piping: Refer to
.
4.
Check brake pedal: Refer to
BR-19, "Inspection and Adjustment"
.
5.
Check master cylinder: Refer to
.
6.
Check brake booster: Refer to
BR-34, "Inspection and Adjustment"
.
7.
Check front disc brake: Refer to
BR-46, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Inspection"
BR-50, "BRAKE CALIPER ASSEMBLY (4 PISTON TYPE) : Inspection"
(4 piston type).
8.
Check rear disc brake: Refer to
BR-60, "BRAKE CALIPER ASSEMBLY (1 PISTON TYPE) : Inspection"
piston type),
BR-64, "BRAKE CALIPER ASSEMBLY (2 PISTON TYPE) : Inspection"
(2 piston type).
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform self-diagnosis for “ABS” with CONSULT-III.
Is any item indicated on the self-diagnosis display?
YES
>> Replace ABS actuator and electric unit (control unit).
NO
>> Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection
with harness connector. If any items are damaged, repair or replace error-detected parts.
DTC
Display item
Malfunction detected condition
Possible cause
C1142
PRESS SEN CIRCUIT
Pressure sensor signal line is open or shorted, or pres-
sure sensor is malfunctioning.
• Harness or connector
• Stop lamp switch
• ABS actuator and electric unit
(control unit)
C1142 PRESS SENSOR
BRC-73
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Special Repair Requirement
INFOID:0000000005528317
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-74
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1143 STEERING ANGLE SENSOR
C1143 STEERING ANGLE SENSOR
Description
INFOID:0000000005234558
The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel,
and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.
DTC Logic
INFOID:0000000005234559
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 “C1143” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005234560
1.
CHECK CONNECTOR
1.
Turn the ignition switch OFF.
2.
Disconnect ABS actuator and electric unit (control unit) harness connector.
3.
Disconnect steering angle sensor harness connector.
4.
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 STEERING ANGLE SENSOR POWER SUPPLY
1.
Check the voltage between steering angle sensor harness connector and ground.
2.
Turn ignition switch ON.
CAUTION:
Never start the engine.
3.
Check the voltage between steering angle sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK STEERING ANGLE SENSOR POWER SUPPLY CIRCUIT
DTC
Display item
Malfunction detected condition
Possible cause
C1143
ST ANG SEN CIRCUIT
Steering angle sensor is malfunctioning.
• Harness or connector
• Steering angle sensor
• ABS actuator and electric unit
(control unit)
Steering angle sensor
—
Condition
Voltage
Connector
Terminal
M37
8
Ground
Ignition switch: OFF
Approx. 0V
Steering angle sensor
—
Condition
Voltage
Connector
Terminal
M37
8
Ground
Ignition switch: ON
Battery voltage
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст