Check Door Key Cylinder Switch (Unlock)

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

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

Check door key cylinder switch ("KEY CYL UN-SW") in "DATA MONITOR" mode with CONSULT-II.
- When key cylinder switch is turn to "UNLOCK"
  KEY CYL UN-SW: ON
  
  Fig 1: CONSULT-II Function Display Data Monitor
  Courtesy of NISSAN MOTOR CO., U.S.A.
Without CONSULT-II

Check voltage between main power window (door lock and unlock switch) connector and ground.

Fig 2: Terminal Voltage Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 3: Checking Voltage Between Main Power Window Connector And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Door key cylinder switch (unlock) circuit is OK.
2. NG: GO TO 2
CHECK FRONT DOOR KEY CYLINDER SWITCH
1. Disconnect door key cylinder switch connector.
2. Check continuity between door key cylinder switch terminals 5 and 6.
  
  Fig 4: Terminal Continuity Chart
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Continuity Between Door Key Cylinder Switch Terminals 5 And 6
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Check the following.
  - Harness for open or short between power window main switch (door lock and unlock switch) and door key cylinder switch.
  - Door key cylinder switch ground circuit.
2. NG: Replace front door lock assembly (driver side) (door key cylinder switch).