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Home >> Nissan-Datsun >> 2006 >> Altima SE-R, Automatic >> Repair and Diagnosis >> Electrical >> Gauges >> Driver Information System >> Warning Chime >> Key Warning Chime Does Not Operate
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Key Warning Chime Does Not Operate

  1. CHECK FUSE 

    Check if the key switch and key lock solenoid (key detection) switch fuse is blown. Refer to , "WIRING DIAGRAM - CHIME - ".

    Is the fuse blown? 

    YES: If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to , "POWER SUPPLY ROUTING CIRCUIT ".

    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? 

    YES: GO TO 3.

    NO: Go to , "ALL WARNINGS ARE NOT OPERATED " or , "KEY WARNING CHIME AND LIGHT WARNING CHIME DOES NOT OPERATE (SEAT BELT WARNING CHIME DOES OPERATE) ".

  3. KEY SWITCH INSPECTION 

    With CONSULT-II 

    With "BUZZER" on the data monitor, insert the key into the ignition cylinder to check ON/OFF operation.

    SWITCH OPERATION AND CONSULT-II DISPLAY

    Switch operation CONSULT-II display Operation status
    Ignition switch (key in switch) KEY ON SW ON
    Ignition switch (key out of switch) OFF
    Fig 1: CONSULT-II DATA MONITOR Screen
    G04171168Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Check voltage between BCM harness connector M18 terminal 37 and ground.

    BCM CONNECTOR AND GROUND VOLTAGE

    Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    Connector Terminal
    M18 37 Ground Key is inserted Battery voltage
    Key is removed 0V
    Fig 2: Checking Voltage Between BCM Connector M18 Terminal 37 And Ground
    G04171169Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM. Refer to , "REMOVAL AND INSTALLATION OF BCM ".

    NG: GO TO 4.

  4. CHECK KEY SWITCH (INSERT) 
    1. Disconnect key switch and key lock solenoid connector.
    2. Check continuity between key switch and key lock solenoid terminals 3 and 4.
      KEY SWITCH (INSERT) CONTINUITY

      Terminals Condition Continuity
      3 4 Key is inserted Yes
      Key is removed No
    Fig 3: Checking Continuity Between Key Switch And Key Lock Solenoid Terminals 3 And 4
    G04171170Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 5.

    NG: Replace key switch and key lock solenoid.

  5. BCM AND KEY SWITCH CONTINUITY INSPECTION 
    1. Disconnect BCM connector M18.
    2. Check continuity between BCM harness connector M18 terminal 37 and key switch and key lock solenoid harness connector M26 terminal 4.

      Continuity should exist. 

    3. Check continuity between BCM harness connector M18 terminal 37 and ground.

      Continuity should not exist. 

    Fig 4: Checking Continuity Between BCM Harness Connector M18 And Terminal 37 And Ground
    G04171171Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 6.

    NG: Repair harness or connector.

  6. KEY SWITCH INPUT SIGNAL INSPECTION 

    Check voltage between key switch and key lock solenoid harness connector M26 terminal 3 and ground.

    Battery voltage should exist. 

    Fig 5: Checking Voltage Between Key Switch And Key Lock Solenoid Connector M26 Terminal 3 And Ground
    G04171172Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Replace BCM. Refer to , "REMOVAL AND INSTALLATION OF BCM ".

    NG: Check harness for open between key switch and key lock solenoid and fuse.

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