C1155
DTC C1155 BR FLUID LEVEL LOWDescription
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
C1155:
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 "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
CAUTION: Check brake fluid level in brake reservoir tank before starting inspection.
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect brake fluid level switch connector E24 and combination meter connector M24, check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
2. Reconnect connector and perform self-diagnosis.
Is the inspection result normal?
YES >> Inspection end.
NO >> GO TO 2
2. CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF and disconnect brake fluid level switch connector E24.
2. 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.
^ 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 M24.
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 connector 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).
>> END