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Home >> Nissan-Datsun >> 2002 >> Sentra SE-R, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 593 (Power Door Lock System - Coupe) >> Power Door Lock System >> Check Door Lock and Unlock Switch

Check Door Lock and Unlock Switch

WARNING: This page is about a different car, the 2005 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER WINDOW OPERATION 

    Does power window system operate normally?

    YES or NO? 

    1. YES: GO TO  2.
    2. NO: Refer to POWER WINDOW SYSTEM .
  2. CHECK DOOR LOCK AND UNLOCK SWITCH OUTPUT SIGNAL 

    With CONSULT-II 

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

    • When door lock and unlock switch is turned to LOCK
      1. CDL LOCK SW: ON 
    • When door lock and unlock switch is turned to UNLOCK
      1. CDL UNLOCK SW: ON 
    Fig 1: Checking Door Lock & Unlock Switch "CDL LOCK SW", "CDL UNLOCK SW" In DATA MONITOR Mode With CONSULT-II
    G02335989Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    1. Remove key from ignition key cylinder, and the all door are closed.
    2. Check the signal between BCM connector and ground with oscilloscope when door lock and unlock switch (driver side and passenger side) is turned "LOCK" or "UNLOCK".
    3. Make sure signals which are shown in the figure below can be detected during 10 second just after door lock and unlock switch (driver side and passenger side) is turned "LOCK" or "UNLOCK".
      Fig 2: Connector, Terminal & Signal Reference Value Chart
      G02335990Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: Door lock and unlock switch circuit is OK.
    2. NG: GO TO  3.
    Fig 3: Checking Signal Between BCM Connector Terminal 22 & Ground With Oscilloscope
    G02335991Courtesy of NISSAN MOTOR CO., U.S.A.
  3. CHECK DOOR LOCK AND UNLOCK SWITCH GROUND HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch (door lock and unlock switch) and power window sub-switch (door lock and unlock switch) connector.
    3. Check continuity between power window main switch (door lock and unlock switch) connector D7 terminal 15 and ground.
      1. 15 (B) - Ground: Continuity should exist. 
      Fig 4: Checking Continuity Between Power Window Main Switch Connector D7 Terminal 15 & Ground
      G02335992Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Check continuity between power window sub-switch (door lock and unlock switch) connector D43 terminal 11 and ground.
      1. 11 (B) - Ground: Continuity should exist. 
      Fig 5: Checking Continuity Between Power Window Sub-Switch Connector D43 Terminal 11 & Ground
      G02335993Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: GO TO  4.
    2. NG: Repair or replace harness.
  4. CHECK POWER WINDOW SERIAL LINK CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between BCM connector M1 terminal 22 and power window main switch (door lock and unlock switch) connector D7 terminal 12.
      1. 22 (Y) - 12 (BR): Continuity should exist. 
      Fig 6: Checking Continuity Between BCM Connector M1 Terminal 22 & Power Window Main Switch Connector D7 Terminal 12
      G02335994Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check continuity between BCM connector M1 terminal 22 and power window sub- switch (door lock and unlock switch) connector D43 terminal 16.
      1. 22 (Y) - 16 (Y): Continuity should exist. 
      Fig 7: Checking Continuity Between BCM Connector M1 Terminal 22 & Power Window Sub-Switch Connector D43 Terminal 16
      G02335995Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK: Replace power window main switch or sub-switch (door lock and unlock switch).
    2. NG: Repair or replace harness.
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