C1116

DTC C1116 STOP LAMP SW





Description
The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to 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. Refer to C1116.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, refer to Coupe or VDC/TCS/ABS.
1.CONNECTOR INSPECTION
1. Turn ignition switch OFF.
2. Disconnect stop lamp switch and ABS actuator and electric unit (control unit) 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. Repeat pumping brake pedal carefully several times, and perform self-diagnosis. Refer to VDC/TCS/ABS.
Is the inspection result normal?
YES - Inspection End.
NO - GO TO 2
2.CHECK STOP LAMP SWITCH CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check voltage between ABS actuator and electric unit (control unit) connector E54 terminal 20 and ground.






Is the inspection result normal?
YES - Perform self-diagnosis.
NO - Repair or replace stop lamp switch circuit.
- Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".




Component Inspection
1.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 - Inspection End.
NO - Replace stop lamp switch.




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 Service and Repair.
- END