Back Door Key Cylinder Switch Check

WARNING: This page is about a different car, the 2003 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

CHECK BACK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK/UNLOCK SIGNAL)
With CONSULT-II

Check back door key cylinder switch ("KEY CYL LK-SW"/"KEY CYL UN-SW") in "DATA MONITOR" mode with CONSULT-II.

Fig 1: Checking Back Door Key Cylinder Switch Input Signal (Lock/Unlock Signal) - With CONSULT-II
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between smart entrance control unit terminals 10 (LG), 11 (Y) or 12 (W/PU) and ground.

Fig 2: Checking Back Door Key Cylinder Switch Input Signal (Lock/Unlock Signal) - Without CONSULT-II
Courtesy of NISSAN MOTOR CO., U.S.A.

Refer to wiring diagram in WIRING DIAGRAM - VEHSEC .

OK or NG
1. OK: Back door key cylinder switch is OK.
2. NG: GO TO 2 .
CHECK BACK DOOR KEY CYLINDER SWITCH
1. Disconnect back door key cylinder switch connector.
2. Check continuity between back door key cylinder switch terminals.
  
  Fig 3: Checking Back Door Key Cylinder Switch
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Check the following.
  - Back door key cylinder switch ground circuit
  - Harness for open or short between smart entrance control unit and back door key cylinder switch
2. NG: Replace back door key cylinder switch.