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. 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 "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK BRAKE FLUID LEVEL

1.Turn the ignition switch OFF.
2.Check the brake fluid level. Refer to "Inspection" Removal and Replacement.
Is the inspection result normal?
YES- GO TO 2.
NO- Refill brake fluid. Refer to "Refilling" Refilling.

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 "Component Inspection" .
Is the inspection result normal?
YES- GO TO 5.
NO- Replace reservoir tank. Refer to "Exploded View" Exploded View. 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 disconnection 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 HARNESS

1.Turn the ignition switch OFF.
2.Disconnect brake fluid level switch harness connector.
3.Disconnect combination meter harness connector.
4.Disconnect unified meter and A/C amp. harness connector.
5.Check the continuity between brake fluid level switch harness connector and combination meter harness connector.





6.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. GO TO 8.

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. GO TO 9.

9. CHECK COMBINATION METER

Check the combination meter. Refer to "CONSULT Function (METER/M&A)" CONSULT Function.
Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Exploded View" Exploded View.
NO- Repair or replace combination meter. Refer to "Exploded View" 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 connector terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace reservoir tank. Refer to "Exploded View" 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. Refer to BRC9, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement"
- END