Stop Lamp Switch Circuit

TROUBLE DIAGNOSIS FOR SYSTEM


Stop Lamp Switch Circuit


INSPECTION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.





Is above displayed on the self-diagnosis display?
YES - GO TO 2.
NO - INSPECTION END
2.CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect stop lamp switch connector E124 and ABS actuator and electric unit (control unit) connector E30, check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
2. Reconnect connectors securely.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, and perform self-diagnosis.
OK or NG
OK - INSPECTION END
NG - GO TO 3.
3.CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E30.





2. Check voltage between ABS actuator and electric unit (control unit) harness connector E30 terminal 30 and ground.





OK or NG
OK - Perform self-diagnosis.
NG -
- Repair or replace stop lamp switch circuit.
- Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".