Diagnosis Procedure

DOOR SWITCH


Description

Detects door open/close condition and transmits the signal to BCM.




DOOR SWITCH


Diagnosis Procedure

Regarding Wiring Diagram information, Power Window Main Switch.
1. CHECK FRONT DOOR SWITCH





Check voltage between BCM connector and ground.





Is the measurement value within the specification?
YES - Replace BCM. Service and Repair.
NO - GO TO 2
2. CHECK HARNESS CONTINUITY





1. Turn ignition switch OFF.
2. Disconnect BCM and front door switch.
3. Check continuity between BCM connector and front door switch connector.





4. Check continuity between front door switch connector and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace harness.
3. CHECK BCM OUTPUT SIGNAL





1. Connect BCM connector.
2. Check voltage between BCM connector and ground.





Is the measurement value within the specification?
YES - GO TO 4
NO - Replace BCM. Service and Repair.
4. CHECK FRONT DOOR SWITCH
Check front door switch. Component Inspection.
Is the inspection result normal?
YES - Check intermittent incident. Intermittent Incident.
NO - Replace front door switch.