C1155

C1155 BRAKE FLUID LEVEL SWITCH





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.DTC REPRODUCTION PROCEDURE
1. Turn the ignition switch ON.
2. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1155" detected?
YES - Proceed to diagnosis procedure. SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK BRAKE FLUID LEVEL
1. Turn the ignition switch OFF.
2. Check brake fluid level. Inspection.
Is the inspection result normal?
YES - GO TO 2.
NO - Refill brake fluid. Refilling.
2.PERFORM SELF-DIAGNOSIS (1)
1. Erase Self-diagnosis result for "ABS" with CONSULT-III.
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-III.
Is DTC "C1155" detected?
YES - INSPECTION END
NO - GO TO 3.
3.CHECK BRAKE FLUID LEVEL SWITCH
Check brake fluids level switch. SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 5.
NO - Replace reservoir tank. Exploded View. GO TO 4.
4.PERFORM SELF-DIAGNOSIS (2)
1. Erase Self-diagnosis result for "ABS" with CONSULT-III.
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-III.
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 brake fluid level switch harness connector for disconnection or looseness.
4. Check brake fluid level switch pin terminals for damage or loose connection with harness connector.
5. Disconnect combination meter harness connector.
6. Check combination meter harness connector for disconnection or looseness.
7. Check combination meter 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. Erase Self-diagnosis result for "ABS" with CONSULT-III.
4. Turn the ignition switch OFF, and wait 10 seconds or more.
5. Turn the ignition switch ON.

CAUTION:
Never start the engine.
6. Perform self-diagnosis for "ABS" with CONSULT-III.
Is DTC "C1155" detected?
YES - INSPECTION END
NO - GO TO 7.
7.CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1. Turn the ignition switch OFF.
2. Disconnect brake fluid level switch harness connector.
3. Disconnect combination meter harness connector.
4. Check continuity between brake fluid level switch harness connector and combination meter harness connector.





5. Check 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. GO TO 8.
8.CHECK BRAKE FLUID LEVEL SWITCH GROUND
Check 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. GO TO 9.
9.CHECK COMBINATION METER
Check combination meter. .
Is the inspection result normal?
YES - Replace ABS actuator and electric unit (control unit). Exploded View VDC/TCS/ABS.
NO - Repair or replace combination meter. Exploded View.




Component Inspection
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 harness connector.





Is the inspection result normal?
YES - INSPECTION END
NO - Replace reservoir tank. Exploded View.




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) or steering angle sensor and removing steering angle sensor. Special Repair Requirement
- END