C1142

C1142 PRESS SEN CIRCUIT

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. CHECK SELF DIAGNOSTIC RESULT

With CONSULT.
1.Turn the ignition switch OFF to ON.
2.Perform self diagnostic result.
Is DTC C1142 detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure".
NO- Inspection End.


Diagnosis Procedure

Regarding Wiring Diagram information, Coupe or VDC/TCS/ABS.

1. CHECK STOP LAMP SWITCH CONNECTOR

1.Turn ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) and stop lamp switch connectors.
3.Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
4.Reconnect connectors securely.
5.Start engine.
6.Pump brake pedal carefully several times, and perform self diagnostic result. VDC/TCS/ABS.
Is the inspection result normal?
YES- GO TO 2
NO- Poor connection of connector terminals. Repair or replace connector.

2. CHECK STOP LAMP SWITCH

1.Turn ignition switch OFF.
2.Disconnect stop lamp switch connector.
3.Check continuity between stop lamp switch terminals.





Is the inspection result normal?
YES- GO TO 3
NO- Replace stop lamp switch.

3. CHECK STOP LAMP SWITCH CIRCUIT

1.Disconnect ABS actuator and electric unit (control unit) connector.
2.Connect stop lamp switch connector.
3.Check voltage between ABS actuator and electric unit (control unit) connector E54 terminal 20 and ground.





Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace malfunctioning components.

4. CHECK SELF DIAGNOSTIC RESULT

With CONSULT.
1.Turn the ignition switch OFF to ON.
2.Perform self diagnostic result.
Is DTC C1142 detected?
YES- Replace ABS actuator and electric unit (control unit). VDC/TCS/ABS.
NO- Inspection End.


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- Go 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). Service and Repair.
- END