Key Switch Check

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

CHECK KEY SWITCH INPUT SIGNAL
With CONSULT-II

Check key switch "KEY ON SW" in DATA MONITOR mode with CONSULT-II. Refer to DATA MONITOR .
- When key is inserted to ignition key cylinder:
  KEY ON SW: ON
- When key is removed from ignition key cylinder:
  KEY ON SW: OFF
Fig 1: Data Monitor Display
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

Check voltage between BCM connector M18 terminal 37 and ground.

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

Fig 3: Checking Voltage Between BCM Connector M18 Terminal 37 & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG
1. OK: Key switch circuit is OK.
2. NG: GO TO 2
CHECK KEY SWITCH
Check continuity between key switch terminals.

Fig 4: Terminal Continuity Condition Table
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 5: Checking Continuity Between Key Switch Terminals
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG?
1. OK: Repair or replace harness.
2. NG: Replace key switch.