C1142
C1142 PRESS SENSORDescription
The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator and electric unit (control unit). [The pressure sensor is integrated in the ABS actuator and electric unit (control unit).]
DTC Logic
C1142:
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 "C1142" detected?
YES >> Proceed to diagnosis procedure. Refer to "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK STOP LAMP SWITCH
Check stop lamp switch. Refer to BRC-51, "Diagnosis Procedure". C1116
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace malfunction component.
2.CHECK DATA MONITOR
Check pressure sensor signal. Refer to "Component Inspection".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system fluid leakage, etc.
^ Brake pedal: Refer to BR-7, "Inspection and Adjustment". Testing and Inspection
^ Brake booster: Refer to WT-13, "Inspection".
^ Master cylinder: Refer to WT-12, "Inspection".
3.ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform ABS actuator and electric unit (control unit) self-diagnosis.
Is any item indicated on the self-diagnosis display?
YES >> Replace ABS actuator and electric unit (control unit).
NO >> Check ABS actuator and electric unit (control unit) pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
Component Inspection
1.CHECK DATA MONITOR
On "DATA MONITOR", select "PRESS SENSOR" and check the brake fluid pressure.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Proceed to diagnosis procedure. Refer to "Diagnosis Procedure".
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). Refer to BRC-8, "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION: Description". Testing and Inspection
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