C1155

DTC C1155 BR FLUID LEVEL LOW





Description
The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actuator and electric unit (control unit).




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.





Is above displayed on the self-diagnosis display?
YES - Proceed to diagnosis procedure. Refer to C1155.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, refer to Coupe or VDC/TCS/ABS.

CAUTION:
Check brake fluid level in brake reservoir tank before starting inspection.
1.CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch and combination meter connectors.
3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
4. Reconnect connector and perform self-diagnosis. Refer to VDC/TCS/ABS.
Is the inspection result normal?
YES - Inspection End.
NO - GO TO 2
2.CHECK BRAKE FLUID LEVEL SWITCH





1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check continuity between brake fluid level switch connector E24 terminals 1 and 2.





Is the inspection result normal?
YES - GO TO 3
NO - Brake fluid level switch is malfunctioning. Replace reservoir tank. Refer to Exploded View.
- Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".
3.CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1. Disconnect combination meter connector.
2. Check continuity between combination meter connector M24 (A) terminal 27 and brake fluid level switch connector E24 (B) terminal 1.

27 - 1 : Continuity should exist.

3. Check continuity between combination meter connector M24 (A) terminal 27 and ground.

27 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace malfunctioning components.
- Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".
4.CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT





Check continuity between brake fluid level switch connector E24 (B) terminal 2 and ground.

2 - Ground : Continuity should exist.

Is the inspection result normal?
YES - Brake fluid level switch circuit is OK.
NO - Repair or replace malfunctioning components.
- Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".




Component Inspection
1.CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check continuity between brake fluid level switch terminals.





Is the inspection result normal?
YES - Inspection End.
NO - Replace reservoir tank.




Special Repair Requirement
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform the neutral position adjustment for the steering angle sensor, when replacing the ABS actuator and electric unit (control unit). Refer to Service and Repair.
- END