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-DIAGNOSIS RESULTS
Check the self-diagnosis results.





Is above displayed on the self-diagnosis display?
YES - Proceed to diagnosis procedure. C1142.
NO - Inspection End




Diagnosis Procedure
Regarding Wiring Diagram information, [1][2]Antilock Brakes / Traction Control Systems.
1.CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector and stop lamp switch connector.
3. Check terminals for deformation, disconnection, looseness and damage. 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-diagnosis.
Is the inspection result normal?
YES - GO TO 2
NO - Poor connection of connector terminal. 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 3 and 4.





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 E26 terminal 20 and ground.






Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace malfunctioning components.
4.CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.







Is above displayed on the self-diagnosis display?
YES - Replace ABS actuator and electric unit (control unit). Removal And Installation.
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. C1142.




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). Special Repair Requirement.
- END