Nissan Murano. Instruction — part 229
BRC-72
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1144 INCOMPLETE STEERING ANGLE SENSOR ADJUSTMENT
>> END
C1155 BRAKE FLUID LEVEL SWITCH
BRC-73
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
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BRC
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C1155 BRAKE FLUID LEVEL SWITCH
Description
INFOID:0000000009718297
The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actu-
ator and electric unit (control unit).
DTC Logic
INFOID:0000000009718298
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If “DTC CONFIRMATION PROCEDURE” has been previously conducted, always turn the ignition switch OFF
and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.
DTC REPRODUCTION PROCEDURE
1.
Turn the ignition switch OFF to ON.
2.
Perform self-diagnosis for “ABS” with CONSULT.
Is DTC “C1155” detected?
YES
>> Proceed to diagnosis procedure. Refer to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009718299
1.
CHECK BRAKE FLUID LEVEL
1.
Turn the ignition switch OFF.
2.
Check the brake fluid level. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Refill brake fluid. Refer to
.
2.
PERFORM SELF-DIAGNOSIS (1)
1.
Erase self-diagnosis result for “ABS” with CONSULT.
2.
Turn the ignition switch OFF, and wait 10 seconds or more.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Perform self-diagnosis for “ABS” with CONSULT.
Is DTC “C1155” detected?
YES
>> INSPECTION END
NO
>> GO TO 3.
3.
CHECK BRAKE FLUID LEVEL SWITCH
Check the brake fluids level switch. Refer to
BRC-75, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 5.
DTC
Display item
Malfunction detected condition
Possible cause
C1155
BR FLUID LEVEL LOW
Brake fluid level is low or communication line between
the ABS actuator and electric unit (control unit) and brake
fluid level switch is open or shorted.
• Harness or connector
• ABS actuator and electric unit
(control unit)
• Brake fluid level low
• Brake fluid level switch
• Combination meter
BRC-74
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C1155 BRAKE FLUID LEVEL SWITCH
NO
>> Replace sub tank. Refer to
. GO TO 4.
4.
PERFORM SELF-DIAGNOSIS (2)
1.
Erase self-diagnosis result for “ABS” with CONSULT.
2.
Turn the ignition switch OFF, and wait 10 seconds or more.
3.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
4.
Perform self-diagnosis for “ABS” with CONSULT.
Is DTC “C1155” detected?
YES
>> INSPECTION END
NO
>> GO TO 5.
5.
CHECK CONNECTOR AND TERMINAL
1.
Turn the ignition switch OFF.
2.
Disconnect brake fluid level switch harness connector.
3.
Check the brake fluid level switch harness connector for disconnection or looseness.
4.
Check the brake fluid level switch pin terminals for damage or loose connection with harness connector.
5.
Disconnect combination meter harness connector.
6.
Check the combination meter harness connector for disconnection or looseness.
7.
Check the combination meter pin terminals for damage or loose connection with harness connector.
8.
Disconnect ABS actuator and electric unit (control unit) harness connector.
9.
Check the ABS actuator and electric unit (control unit) harness connector harness connector for discon-
nection or looseness.
10. Check the ABS actuator and electric unit (control unit) harness connector pin terminals for damage or
loose connection with harness connector.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Repair or replace error-detected parts. GO TO 6.
6.
PERFORM SELF-DIAGNOSIS (3)
1.
Connect brake fluid level switch harness connector.
2.
Connect combination meter harness connector.
3.
Connect ABS actuator and electric unit (control unit) harness connector.
4.
Erase self-diagnosis result for “ABS” with CONSULT.
5.
Turn the ignition switch OFF, and wait 10 seconds or more.
6.
Turn the ignition switch ON.
CAUTION:
Never start the engine.
7.
Perform self-diagnosis for “ABS” with CONSULT.
Is DTC “C1155” detected?
YES
>> INSPECTION END
NO
>> GO TO 7.
7.
CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT
1.
Turn the ignition switch OFF.
2.
Disconnect brake fluid level switch harness connector.
3.
Disconnect ABS actuator and electric unit (control unit) harness connector.
4.
Disconnect combination meter harness connector.
5.
Check the continuity between brake fluid level switch harness connector and ABS actuator and electric
unit (control unit) harness connector.
6.
Check the continuity between brake fluid level switch harness connector and combination meter harness
connector.
Brake fluid level switch
ABS actuator and electric
unit (control unit)
Continuity
Connector
Terminal
Connector
Terminal
E37
1
E36
7
Existed
C1155 BRAKE FLUID LEVEL SWITCH
BRC-75
< DTC/CIRCUIT DIAGNOSIS >
[VDC/TCS/ABS]
C
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BRC
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7.
Check the continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace error-detected parts.
8.
CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check the continuity between brake fluid level switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Repair or replace error-detected parts.
9.
CHECK COMBINATION METER
Check the combination meter. Refer to
MWI-35, "CONSULT Function (METER/M&A)"
Is the inspection result normal?
YES
>> Replace ABS actuator and electric unit (control unit). Refer to
NO
>> Repair or replace combination meter. Refer to
.
Component Inspection
INFOID:0000000009718300
1.
CHECK BRAKE FLUID LEVEL SWITCH
1.
Turn the ignition switch OFF.
2.
Disconnect brake fluid level switch harness connector.
3.
Check the continuity between brake fluid level switch connector terminals.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace sub tank. Refer to
.
Special Repair Requirement
INFOID:0000000009718301
1.
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION AND CALIBRATION OF DECEL G
SENSOR
• After replacing an ABS actuator and electric unit (control unit), be sure to perform the following procedure.
- Adjustment of steering angle sensor neutral position: Refer to
BRC-9, "ADJUSTMENT OF STEERING
ANGLE SENSOR NEUTRAL POSITION : Description"
.
- Calibration of decel G sensor: Refer to
BRC-10, "CALIBRATION OF DECEL G SENSOR : Description"
.
Brake fluid level switch
Combination meter
Continuity
Connector
Terminal
Connector
Terminal
E37
1
M34
27
Existed
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
1
Ground
Not existed
Brake fluid level switch
—
Continuity
Connector
Terminal
E37
2
Ground
Existed
Brake fluid level switch
Condition
Continuity
Terminal
1 – 2
When brake fluid is full in the sub tank.
Not existed
When brake fluid is empty in the sub tank.
Existed
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