Operation CHARM: Car repair manuals for everyone.

C1142




C1142 PRESS SENSOR

Description

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


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn 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 ON.
2.Perform self-diagnosis for "ABS" with CONSULT.
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 system. Refer to "Diagnosis Procedure" C1116.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace malfunction component.

2. CHECK BRAKE SYSTEM

1.Check brake fluid leakage: Refer to "Inspection" Removal and Replacement.
2.Check front brake piping: Refer to "FRONT : Inspection" Inspection.
3.Check rear brake piping: Refer to "REAR : Inspection" Inspection.
4.Check brake pedal: Refer to "Inspection and Adjustment" Adjustments.
5.Check master cylinder: Refer to "Inspection" Inspection.
6.Check brake booster: Refer to "Inspection and Adjustment" Inspection and Adjustment.
7.Check front disc brake: Refer to "BRAKE CALIPER ASSEMBLY : Inspection" Inspection.
8.Check rear disc brake: Refer to "BRAKE CALIPER ASSEMBLY : Inspection" Inspection.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace error-detected parts.

3. ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS

Perform self-diagnosis for "ABS" with CONSULT.
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 error-detected parts.


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 "ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION : Description" Description.
- END