C1199
C1199 BRAKE BOOSTER
Description
The brake booster pressure sensor of engine converts the vacuum pressure to an electric signal and transmits it to the ABS actuator and electric unit (control unit) by CAN.
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 "C1199" detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK BRAKE BOOSTER AND VACUUM HOSE
Check the brake booster and vacuum hose.
- Brake booster: Refer to "Inspection and Adjustment" Inspection and Adjustment.
- Vacuum hose: Refer to "Inspection" Inspection.
Is the inspection result normal?
YES- GO TO 2.
NO-Replace brake booster or vacuum hose.
- Brake booster: Refer to "Exploded View" Exploded View.
- Vacuum hose: Refer to "Exploded View" Exploded View.
2. CHECK THE ECM
1.Check the DTC "P0555" display with the self-diagnosis function of "ENGINE" with CONSULT, and repair or replace error-detected parts. Refer to "Diagnosis Procedure" P0555.
2.After repair or replace, erase self-diagnosis results for "ENGINE" and "ABS" with CONSULT.
-"ENGINE": Refer to "CONSULT Function" CONSULT Function.
-"ABS": Refer to "CONSULT Function" Scan Tool Testing and Procedures.
3.Perform the self-diagnosis again, and check that the malfunction is repaired completely.
- INSPECTION END
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