Open Switch System 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.
   OPEN SWITCH SIGNAL REFERENCE
   
   

   15 - Ground

   Fig 1: Checking Voltage Between Back Door Control Unit Connector Terminal 15 And Ground

   

OK or NG 

OK: Open switch is OK.

NG: GO TO 2.

1. Disconnect back door latch and back door control unit connector.
2. Check continuity between back door latch (open switch) connector D503 terminal 4 and back door control unit connector B55 terminal 15.

   4 - 15 : Continuity should exist. 

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness.

Fig 2: Checking Continuity Between Back Door Latch Connector Terminal 4 And Back Door Control Unit Connector Terminal 15

Check continuity between back door latch (open switch) connector D503 terminal 8 and ground.

8 - Ground : Continuity should exist. 

OK or NG 

OK: Replace the back door latch.

NG: Repair or replace harness.

Fig 3: Checking Continuity Between Back Door Latch Connector Terminal 8 And Ground