Back Door Open Switch System

BACK DOOR OPEN SWITCH SYSTEM


Diagnosis Procedure

1.OPEN SWITCH SIGNAL INSPECTION
1. Turn ignition switch OFF.





2. While fully closing and opening the back door, check voltage between back door control unit connector B55 terminal 15 and ground.





Is the inspection result normal?
YES - Open switch is OK.
NO - GO TO 2
2.OPEN SWITCH CIRCUIT INSPECTION
1. Disconnect back door latch and back door control unit connector.





2. Check continuity between back door control unit connector (A)
B55 terminal 15 and back door latch (open switch) connector (B)
D705 terminal 4.

15 - 4 : Continuity should exist.

3. Check continuity between back door control unit connector (A)
B55 terminal 15 and ground.

15 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - GO TO 3
NO - Repair the harness between the back door latch (open switch) and the back door control unit.
3.OPEN SWITCH GROUND INSPECTION





Check continuity between back door latch (open switch) connector
D705 terminal 8 and ground.

8 - Ground : Continuity should exist.

Is the inspection result normal?
YES - Replace the back door latch.
NO - Repair the harness between the back door latch (open switch) and ground.