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Door Lock and Unlock Switch Check

WARNING: This page is about a different car, the 2009 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DOOR LOCK AND UNLOCK INPUT SIGNAL

    With CONSULT-III 

    Check door lock and unlock switch ("CDL LOCK SW" and "CDL UNLOCK SW") in DATA MONITOR mode with CONSULT-III.

    DATA MONITOR REFERENCE

    Test item Condition
    CDL LOCK SW Door lock and unlock switch is turned to LOCK :ON
    Other than above :OFF
    CDL UNLOCK SW Door lock and unlock switch is turned to UNLOCK :ON
    Other than above :OFF

    Without CONSULT-III 

    Check voltage between BCM connector and ground

    VOLTAGE SPECIFICATION

    Terminals Door lock and unlock switch condition Voltage (V) (Approx.)
    (+) (-)
    BCM connector Terminal
    M19 45 Ground Lock 0
    Neutral / Unlock Battery voltage
    46 Unlock 0
    Neutral / Lock Battery voltage
    Fig 1: Checking Voltage Between BCM Connector And Ground
    G04927564Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: Door lock and unlock switch is OK.

    NG1: With power windows, GO TO 2.

    NG2: Without power windows, GO TO  5.

  2. CHECK DOOR LOCK/UNLOCK SWITCH
    1. Turn ignition switch OFF.
    2. Disconnect door lock/unlock switch.
    3. Check continuity between main power window and door lock/unlock switch connector D11 (B) terminal 18 and connector D11 (B) terminal 17, and connector D5 (A) terminal 6 and connector D11 (B) terminal 17.
      CONTINUITY CHART

      Terminals Condition Continuity
      18 17 Lock Yes
      Unlock/Neutral No
      6 Unlock Yes
      Lock/Neutral No
    4. Check continuity between power window and door lock/unlock switch RH connector D104 (C) terminals 1, 2 and 3.
      CONTINUITY CHART

      Terminals Condition Continuity
      1 3 Lock Yes
      Unlock/Neutral No
      2 Unlock Yes
      Lock/Neutral No
      Fig 2: Checking Continuity Between Power Window And Door Lock/Unlock Switch RH Connector D104 Terminals 1, 2 And 3
      G05924604Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 3.

      NG: Replace door lock/unlock switch.

  3. CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS
    1. Disconnect main power window and door lock/unlock switch or power window and door lock/unlock switch RH.
    2. Check continuity between main power window and door lock/unlock switch connector D11 terminal 17 and ground.

      17 - Ground : Continuity should exist. 

      Fig 3: Checking Continuity Between Main Power Window And Door Lock/Unlock Switch Connector D11 Terminal 17 And Ground
      G05924605Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between power window and door lock/unlock switch RH connector D104 terminal 3 and ground

      3 - Ground : Continuity should exist. 

      Fig 4: Checking Continuity Between Power Window And Door Lock/Unlock Switch RH Connector D104 Terminal 3 And Ground
      G04895675Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 4.

      NG: Repair or replace harness.

  4. CHECK DOOR LOCK SWITCH CIRCUIT
    1. Disconnect BCM.
    2. Check continuity between BCM connector M19 (A) terminal 45 and main power window and door lock/unlock switch connector D11 (B) terminal 18 or power window and door lock/unlock switch RH connector D104 (C) terminal 1.

      1 - 45 : Continuity should exist. 

      18 - 45 : Continuity should exist. 

    3. Check continuity between BCM connector M19 (A) terminal 45 and ground.

      45 - Ground : Continuity should not exist. 

      Fig 5: Checking Continuity Between BCM Connector M19 (A) Terminal 45 And Ground
      G05924607Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between BCM connector M19 (A) terminal 46 and main power window and door lock/unlock switch LH connector D5 (B) terminal 6 or power window and door lock/unlock switch RH connector D104 (C) terminal 2.

      2 - 46 : Continuity should exist. 

      6 - 46 : Continuity should exist. 

    5. Check continuity between BCM connector M19 (A) terminal 46 and ground.

      46 - Ground : Continuity should not exist. 

      Fig 6: Checking Continuity Between BCM Connector M19 (A) Terminal 46 And Ground
      G05924608Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

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

      NG: Repair or replace harness.

  5. CHECK DOOR LOCK/UNLOCK SWITCH LH
    1. Turn ignition switch OFF.
    2. Disconnect door lock/unlock switch LH.
    3. Check continuity between door lock/unlock switch LH terminals 1, 2 and 5.
      CONTINUITY CHART

      Terminals Condition Continuity
      1 5 Lock Yes
      Unlock/Neutral No
      2 Unlock Yes
      Lock/Neutral No
      Fig 7: Checking Continuity Between Door Lock/Unlock Switch LH Terminals 1, 2 And 5
      G04927570Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

      OK: GO TO 6.

      NG: Replace door lock/unlock switch LH.

  6. CHECK DOOR LOCK/UNLOCK SWITCH GROUND HARNESS

    Check continuity between door lock/unlock switch connector D6 terminal 5 and ground.

    5 - Ground : Continuity should exist. 

    Fig 8: Checking Continuity Between Door Lock/Unlock Switch Connector D6 Terminal 5 And Ground
    G04927571Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    OK: GO TO 7.

    NG: Repair or replace harness.

  7. CHECK DOOR LOCK SWITCH CIRCUIT
    1. Disconnect BCM.
    2. Check continuity between BCM connector M19 (A) terminal 45 and door lock/unlock switch LH connector D6 (B) terminal 1.

      1 - 45 : Continuity should exist. 

    3. Check continuity between BCM connector M19 (A) terminal 45 and ground.

      45 - Ground : Continuity should not exist. 

      Fig 9: Checking Continuity Between BCM Connector M19 (A) Terminal 45 And Ground
      G04927572Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between BCM connector M19 (A) terminal 46 and door lock/unlock switch LH connector D6 (B) terminal 2.

      2 - 46 : Continuity should exist. 

    5. Check continuity between BCM connector M19 (A) terminal 46 and ground.

      46 - Ground : Continuity should not exist. 

      Fig 10: Checking Continuity Between BCM Connector M19 (A) Terminal 46 And Ground
      G04927573Courtesy of NISSAN MOTOR CO., U.S.A.

      OK or NG 

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

      NG: Repair or replace harness.

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