Key Switch And Key Lock Solenoid Circuit Inspection

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

CHECK KEY SWITCH AND KEY LOCK SOLENOID
With CONSULT-II

With "IGN KEY SW" on the DATA MONITOR, Check ON/OFF operation.

Fig 1: Key Switch And Key Lock Solenoid Circuit - Monitor Item Contents Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: DATA MONITOR - CONSULT II Display Screen
Courtesy of NISSAN MOTOR CO., U.S.A.

Without CONSULT-II

GO TO 2.

OK or NG
- OK: Key switch and key lock solenoid circuit is OK.
- NG: GO TO 2.
KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid.
3. Check voltage between key switch and key lock solenoid connector M27 terminal 3 and ground.
  3 (Y/B) - Ground: Battery voltage.
OK or NG
- OK: GO TO 3.
- NG: Check harness between key switch and key lock solenoid and fuse.
  
  Fig 3: Checking Voltage Between Key Switch And Key Lock Solenoid Connector M27 Terminal 3 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.
CHECK KEY SWITCH AND KEY LOCK SOLENOID
Check continuity between key switch and key lock solenoid as follows.

Fig 4: Terminals Continuity Reference Chart
Courtesy of NISSAN MOTOR CO., U.S.A.

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

OK or NG
- OK: GO TO 4.
- NG: Replace key switch and key lock solenoid.
CHECK HARNESS CONTINUITY
1. Disconnect key switch and key lock solenoid and BCM.
2. Check continuity between key switch and key lock solenoid connector M27 terminal 4 and BCM connector M18 terminal 37.
  4 (B/R) - 37 (B/R): Continuity should exist.
3. Check continuity between key switch and key lock solenoid connector M27 terminal 4 and ground.
  4 (B/R) - Ground: Continuity should not exist.
OK or NG
- OK: Key switch and key lock solenoid circuit is OK.
- NG: Repair or replace harness.
  
  Fig 6: Checking Continuity Between Key Switch And Key Lock Solenoid Connector M27 Terminal 4, BCM Connector M18 Terminal 37 And Ground
  Courtesy of NISSAN MOTOR CO., U.S.A.