C1142
Pressure Sensor SystemINSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK STOP LAMP SWITCH CONNECTOR
1. Turn ignition switch OFF and disconnect stop lamp switch connector and VDC/TCS/ABS control unit connector.
2. Reconnect connectors securely.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, then perform self-diagnosis.
Do any self-diagnostic items appear?
YES >> GO TO 3.
NO >> Poor connection. Repair or replace connector.
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF and disconnect stop lamp switch harness connector.
2. Operate stop lamp switch and check continuity between stop lamp switch harness connector terminals.
OK or NG
OK >> GO TO 4.
NG >> Replace stop lamp switch.
4. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit harness connector.
2. Check continuity between VDC/TCS/ABS control unit harness connector M93 terminal 48 and ground.
OK or NG
OK >> GO TO 5.
NG >> Open or short in harness between VDC/TCS/ABS control unit and stop lamp switch
5. CHECK PRESSURE SENSOR CONNECTOR
1. Turn ignition switch OFF and disconnect VDC actuator (pressure sensor) connector and VDC/TCS/ABS control unit connector. Then reconnect them securely.
2. Perform VDC/TCS/ABS control unit self-diagnosis again.
OK or NG
OK >> Poor connection of connectors. Repair or replace suspect connector. Perform self-diagnosis again.
NO >> GO TO 6.
6. CHECK PRESSURE SENSOR CIRCUIT
1. Turn ignition switch OFF and disconnect VDC actuator (pressure sensor) connector and VDC/TCS/ABS control unit connector.
2. Check continuity between VDC/TCS/ABS control unit harness connector M93 and VDC actuator (pressure sensor) harness connector E50.
OK or NG
OK >> GO TO 7.
NG >> Open or short in harness. Repair or replace the suspect harness.
7. CHECK PRESSURE SENSOR
1. Connect VDC actuator (pressure sensor) connector and VDC/TCS/ABS control unit connector.
2. Check "DATA MONITOR" for "PRESS SENSOR". Check if results are normal.
OK or NG
OK >> Perform VDC/TCS/ABS control unit self-diagnosis again.
NG >> Pressure sensor malfunction. Replace VDC actuator (inside pressure sensor).