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Key Warning Chime Does Not Operate

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.
  1. CHECK FUSE 

    Check if the key switch fuse [fuse 21, located in the fuse block (J/B)] is blown. Refer to , "WIRING DIAGRAM - CHIME -  ".

    Is the fuse blown?

    1. YES: Replace the fuse. Be sure to repair the cause of malfunction before installing new fuse.
    2. NO: GO TO 2.
  2. CHECK WARNING CHIME OPERATION 

    With key removed from the ignition and the front door LH open, turn the lighting switch to 1st or 2nd position.

    Does warning chime sound?

    1. YES: GO TO 3.
    2. NO: Go to All Warning Chimes Do Not Operate  or Key Warning Chime and Light Warning Chime Do Not Operate (Seat Belt Warning Chime Does Operate)  .
  3. CHECK BCM INPUT SIGNAL 

    With CONSULT-II 

    Check key switch ("KEY ON SW") in "DATA MONITOR" mode with CONSULT-II.

    1. Select "BCM".
    2. With "DATA MONITOR" of "BUZZER", confirm "KEY ON SW" changes when the key is inserted/removed form the ignition key cylinder.
      Fig 1: Data Monitor Display
      G03495396Courtesy of NISSAN MOTOR CO., U.S.A.
    1. When key is inserted in ignition key cylinder: KEY ON SW ON 
    2. When key is removed from ignition key cylinder: KEY ON SW OFF 

    Without CONSULT-II 

    Check voltage between BCM harness connector M18 terminal 37 (B/ R) and ground.

    CONNECTOR TERMINALS VOLTAGE CONDITION

    Terminals Condition Voltage (V)
    (+) (-)
    Connector Terminal (Wire color)
    M18 37 (B/R) Ground Key is inserted Battery voltage
    Key is removed 0
    Fig 2: Checking Voltage Between BCM Harness Connector M18 Terminal And Ground
    G03495397Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: Replace the BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
    2. NG: GO TO 4.
  4. CHECK KEY SWITCH 
    1. Disconnect key switch and key lock solenoid connector.
    2. Check continuity between key switch and key lock solenoid connector M27 terminals 3 and 4.
    CONNECTOR TERMINALS CONTINUITY CONDITION

    Terminals Condition Continuity
    3 4 Key is inserted Yes
    Key is removed No
    Fig 3: Checking Continuity Between Key Switch And Key Lock Solenoid Connector M27 Terminals
    G03495398Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 5.
    2. NG: Replace the key switch and key lock solenoid.
  5. CHECK KEY SWITCH CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM harness connector M18 terminal 37 (B/R) and key switch and key lock solenoid harness connector M27 terminal 4 (B/R).

      Continuity should exist. 

    3. Check continuity between BCM harness connector M18 terminal 37 (B/R) and ground.
    1. Continuity should not exist. 
    Fig 4: Checking Key Switch Circuit
    G03495399Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 6.
    2. NG: Repair harness or connector.
  6. CHECK KEY SWITCH POWER SUPPLY CIRCUIT 

    Check voltage between key switch and key lock solenoid harness connector M27 terminal 3 (Y/R) and ground.

    1. Battery voltage should exist. 

    OK or NG

    1. OK: Replace the BCM. Refer to REMOVAL AND INSTALLATION OF BCM .
    2. NG: Check harness for open or short between key switch and key lock solenoid and fuse.
    Fig 5: Checking Key Switch Power Supply Circuit
    G03495400Courtesy of NISSAN MOTOR CO., U.S.A.
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