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C1155 BRAKE FLUID LEVEL SWITCH BRC-71 < COMPONENT DIAGNOSIS > [VDC/TCS/ABS] C D E G H I J K L M A B BRC N O P C1155 BRAKE FLUID LEVEL SWITCH Description INFOID:0000000003132951 The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actu- DTC Logic INFOID:0000000003132952 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. DTC REPRODUCTION PROCEDURE 1. Turn the ignition switch ON. 2. Perform ABS actuator and electric unit (control unit) self-diagnosis. Is DTC “C1155” detected? YES >> Proceed to diagnosis procedure. Refer to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000003132953 1. CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect brake fluid level switch connector. 3. Disconnect unified meter and A/C amp. connector. 4. Check terminal for deformation, disconnection, looseness, etc. Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace damaged parts. 2. CHECK BRAKE FLUID LEVEL SWITCH Check brake fluid level switch. Refer to BRC-72, "Component Inspection" Is the inspection result normal? YES >> GO TO 3. NO >> Brake fluid level switch is malfunction. Replace reservoir tank. 3. CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT 1. Check the continuity between brake fluid level switch harness connector and unified meter and A/C amp. 2. Check the continuity between brake fluid level switch harness connector and ground. 3. Check the continuity between unified meter and A/C amp. harness connector and ground. DTC Display item Malfunction detected condition Possible cause C1155 BR FLUID LEVEL LOW Brake fluid level is low or communication line between • Harness or connector Unified meter and A/C amp. Brake fluid level switch Continuity Connector Terminal Connector Terminal M67 57 E47 1 Existed Brake fluid level switch — Continuity Connector Terminal E47 2 Ground Existed |