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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R Spec V >> Repair and Diagnosis >> External Pages >> Different car >> Section 1642 (Body, Lock & Security System) >> Vehicle Security (Theft Warning) System >> Front Door Lock Assembly LH (Key Cylinder Switch) Check (Crew Cab)
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Front Door Lock Assembly LH (Key Cylinder Switch) Check (Crew Cab)

WARNING: This page is about a different car, the 2006 Nissan Titan. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DOOR KEY CYLINDER SWITCH LH 

    With CONSULT-II 

    Check front door lock assembly LH (key cylinder switch) ("KEY CYL LK-SW") and ("KEY CYL UN-SW) in DATA MONITOR mode in CONSULT-II. Refer to "DATA MONITOR ".

    Fig 1: CONSULT II Display - Data Monitor
    G04150922Courtesy of NISSAN MOTOR CO., U.S.A.
    • When key inserted in front key cylinder is turned to LOCK:

      KEY CYL LK-SW: ON 

    • When key inserted in front key cylinder is turned to UNLOCK:

      KEY CYL UN-SW: ON 

    Without CONSULT-II 

    Check voltage between main power window and door lock/unlock switch connector D7 terminals 4, 6 and ground.

    Fig 2: Checking Voltage Between Main Power Window And Door Lock/Unlock Switch Connector D7 Terminals 4, 6 And Ground
    G04187588Courtesy of NISSAN MOTOR CO., U.S.A.
    CONNECTOR TERMINAL VOLTAGE REFERENCE

    Connector Terminals Condition Voltage (V) (Approx.)
    ( + ) ( - )
    D7 4 Ground Neutral/Unlock 5
    Lock 0
    6 Neutral/Lock 5
    Unlock 0

    OK or NG 

    OK: Front door lock assembly LH (key cylinder switch) signal is OK.

    NG: GO TO 2.

  2. CHECK DOOR KEY CYLINDER SWITCH LH GROUND HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect front door lock assembly LH (key cylinder switch).
    3. Check continuity between front door lock assembly LH (key cylinder switch) connector (A) D14 terminal 5 and body ground.
      Fig 3: Checking Continuity Between Front Door Lock Assembly LH Connector D14 Terminal 5 And Body Ground
      G04187589Courtesy of NISSAN MOTOR CO., U.S.A.
      CONNECTOR TERMINAL CONTINUITY REFERENCE

      Connector Terminals Continuity
      D14 5 - Ground Yes

    OK or NG 

    OK: GO TO 3.

    NG: Repair or replace harness.

  3. CHECK DOOR KEY CYLINDER SWITCH LH 

    Check continuity between front door lock assembly LH (key cylinder switch) terminals.

    Fig 4: Checking Continuity Between Front Door Lock Assembly LH Terminals
    G04187590Courtesy of NISSAN MOTOR CO., U.S.A.
    CONNECTOR TERMINAL CONTINUITY REFERENCE

    Terminals Condition Continuity
    1 - 5 Key is turned to UNLOCK or neutral. No
    Key is turned to LOCK. Yes
    5 - 6 Key is turned to LOCK or neutral. No
    Key is turned to UNLOCK. Yes

    OK or NG 

    OK: GO TO 4.

    NG: Replace front door lock assembly LH (key cylinder switch). Refer to "REMOVAL AND INSTALLATION ".

  4. CHECK DOOR KEY CYLINDER HARNESS 
    1. Disconnect main power window and door lock/unlock switch.
    2. Check continuity between main power window and door lock/unlock switch connector (A) D7 terminals 4, 6 and front door lock assembly LH (key cylinder switch) connector (B) D14 terminals 1, 6 and body ground.
      Fig 5: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector D7 Terminals 4, 6 And Front Door Lock Assembly LH Connector D14 Terminals 1, 6 And Body Ground
      G04187591Courtesy of NISSAN MOTOR CO., U.S.A.
      CONNECTOR TERMINAL CONTINUITY REFERENCE

      Connector Terminals Connector Terminals Continuity
      A: Main power window and door lock/unlock switch 4 B: Front door lock assembly LH (key cylinder switch) 1 Yes
      6 6 Yes
      4, 6 Ground No

    OK or NG 

    OK: Replace main power window and door lock/unlock switch.

    NG: Repair or replace harness.

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