Diagnosis Procedure
- CHECK DOOR SWITCH INPUT SIGNAL
- Turn ignition switch OFF.
- Disconnect malfunctioning door switch connector.
- Check signal between malfunctioning door switch harness connector and ground with oscilloscope.
(+) (-) Signal (Reference value) Door switch Connector Terminal Driver side B16 2 Ground Passenger side B216 2 Rear LH B23 2 Rear RH B223 2 Is the inspection result normal?
YES: GO TO 3.
NO: GO TO 2.
- CHECK DOOR SWITCH CIRCUIT
- Disconnect BCM connector.
- Check continuity between door switch harness connector and BCM harness connector.
Door switch BCM Continuity Connector Terminal Connector Terminal Driver side B16 2 M123 150 Existed Passenger side B216 124 Rear LH B23 M121 69 Rear RH B223 68 - Check continuity between door switch harness connector and ground.
Door switch Ground Continuity Connector Terminal Driver side B16 2 Not existed Passenger side B216 Rear LH B23 Rear RH B223 Is the inspection result normal?
YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
NO: Repair or replace harness.
- CHECK DOOR SWITCH
Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: GO TO 4.
NO: Replace malfunctioning door switch. Refer to "REMOVAL AND INSTALLATION ".
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
INSPECTION END