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C1199 VACUUM SENSOR BRC-91 < DTC/CIRCUIT DIAGNOSIS > [VDC/TCS/ABS] C D E G H I J K L M A B BRC N O P C1199 VACUUM SENSOR Description INFOID:0000000005234602 The vacuum sensor converts the vacuum pressure to an electric signal and transmits it to the ABS actuator DTC Logic INFOID:0000000005234603 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 “C1199” detected? YES >> Proceed to diagnosis procedure. Refer to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000005234604 1. CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect ABS actuator and electric unit (control unit) harness connector. 3. Disconnect vacuum sensor harness connector. 4. Check terminal for deformation, disconnection, looseness, etc. Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace error-detected parts. 2. CHECK BRAKE BOOSTER Check brake booster. Refer to . Is the inspection result normal? YES >> GO TO 3. NO >> Replace brake booster. Refer to . 3. CHECK VACUUM PIPING Check vacuum piping. Refer to . Is the inspection result normal? YES >> GO TO 4. NO >> Replace vacuum hose. Refer to . 4. CHECK VACUUM SENSOR HARNESS Check the continuity between vacuum sensor harness connector and ABS actuator and electric unit (control DTC Display item Malfunction detected condition Possible cause C1199 BRAKE BOOSTER When negative pressure of brake booster becomes close • Harness or connector |