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Check Key Switch and Key Lock Solenoid Circuit

  1. CHECK KEY SWITCH AND KEY LOCK SOLENOID 

    With CONSULT-II 

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

    MONITOR ITEM AND CONTENTS REFERENCE

    Monitor item [OPERATION or UNIT] Contents
    IGN KEY SW "ON/OFF" Key inserted (ON)/key removed (OFF) status judged from the key detection switch is displayed.
    Fig 1: Display CONSULT II - Data Monitor Screen
    G04130161Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between BCM connector ground.

    CONNECTORS VOLTAGE REFERENCE

    Connector Terminals (Wire color) Condition Voltage (V) (Approx.)
    (+) (-)
    M4 69 (PU/W) ground Remove the key 0
    Insert the key Battery voltage

    OK or NG 

    • OK : System is OK.
    • NG : GO TO 2.
      Fig 2: Identifying Voltage Between BCM Connector And Ground
      G04130162Courtesy of NISSAN MOTOR CO., U.S.A.
  2. CHECK FUSE 

    Check if any of the following fuses is blown.

    FUSES AND UNIT REFERENCE

    Power source Fuse No. Unit
    BAT power supply 32 (10A) Fuse block (J/B) No. 2
    NOTE: Refer to "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION ".

    OK or NG 

    • OK : GO TO 3.
    • NG : If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to "POWER SUPPLY ROUTING ".
  3. CHECK KEY SWITCH AND KEY LOCK SOLENOID POWER SUPPLY CIRCUIT 
    1. Turn ignition switch OFF,
    2. Check voltage between key switch and key lock solenoid connector M64 terminal 3 and ground.

      3 (W) - Ground : Battery voltage. 

    OK or NG 

    • OK : GO TO 4.
    • NG : Check harness between key switch and key lock solenoid and fuse.
      Fig 3: Identifying Voltage Between Key Switch And Key Lock Solenoid Connector M64 Terminal 3 And Ground
      G04130163Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK KEY SWITCH 
    1. Disconnect key switch connector.
    2. Check continuity between key switch connector M64 terminal 3 and 4.
      CONNECTORS CONTINUITY REFERENCE

      Connector Terminals Condition Continuity
      M64 3 4 Key is inserted in ignition key cylinder Yes
      Key is removed from ignition key cylinder No
      Fig 4: Identifying Continuity Between Key Switch Connector M64 Terminal 3 And 4
      G04130164Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    • OK : GO TO 5.
    • NG : Replace key switch and key lock solenoid (key switch) switch.
  5. CHECK HARNESS CONTINUITY 
    1. Disconnect key switch and key lock solenoid connector and BCM connector.
    2. Check continuity between key switch and key lock solenoid connector M64 terminal 4 and BCM connector M4 terminal 69.

      4 (PU/W) - 69 (PU/W) : Continuity should exist. 

    3. Check continuity between key switch and key lock solenoid connector M64 terminal 4 and ground.

      4 (PU/W) - Ground : Continuity should not exist. 

    OK or NG 

    • OK : Check the condition of the harness and connector.
    • NG : Repair or replace harness between key switch and key lock solenoid and BCM.
      Fig 5: Identifying Continuity Between Key Switch And Key Lock Solenoid Connector M64 Terminal 4 And Ground
      G04130165Courtesy of NISSAN MOTOR CO., U.S.A.
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