LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 1748 (Body, Lock & Security System (Sedan)) >> Intelligent Key System >> Check Door Switch
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Check Door Switch

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DOOR SWITCH INPUT SIGNAL 

    With CONSULT-II 

    Check door switches ("DOOR SW-DR""DOOR SW-AS""DOOR SW-RL" and "DOOR SW-RR") in "DATA MONITOR" mode with CONSULT-II.

    MONITOR ITEM AND CONDITION REFERENCE

    Monitor item Condition
    DOOR SW-DR CLOSE --> OPEN: OFF --> ON
    DOOR SW-AS
    DOOR SW-RL
    DOOR SW-RR
    Fig 1: Display CONSULT-II - Data Monitor Screen
    G04122415Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Driver side and Passenger side

    Check voltage between BCM connectors B4 (driver side), M1 (passenger side) terminals 62, 12 and ground.

    Fig 2: Identifying Voltage Between BCM Connectors B4 (Driver Side), M1 (Passenger Side) Terminals 62, 12 And Ground
    G04122416G04122417Courtesy of NISSAN MOTOR CO., U.S.A.
    TERMINALS VOLTAGE REFERENCE

    Item Connectors Terminals (Wire color) Condition Voltage [V] (Approx.)
    (+) (-)
    Driver side door switch B4 62 (Y) Ground CLOSE
    G04122417
    Passenger side door switch M1 12 (P) OPEN 0

    Rear LH side and Rear RH side

    1. Turn ignition switch OFF.
    2. Check voltage between BCM harness connector and ground.
    TERMINALS VOLTAGE REFERENCE

    Item Connector Terminals (Wire color) Door condition Voltage (V) (Approx.)
    (+) (-)
    Rear LH B4 63 (P) Ground CLOSE then OPEN Battery voltage then 0
    Rear RH M1 13 (P)
    Fig 3: Identifying Voltage Between BCM Harness Connector And Ground
    G04122418Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: Door switch circuit is OK.
    • NG: GO TO 2.
  2. CHECK DOOR SWITCH 
    1. Turn ignition switch OFF.
    2. Disconnect door switch connector.
    3. Check continuity between door switch terminal 1 and ground part of door switch.
    TERMINALS CONTINUITY REFERENCE

    Terminal Door switch condition Continuity
    1 Ground part of door switch Pushed No
    Released Yes
    Fig 4: Identifying Continuity Between Door Switch Terminal 1 And Ground Part Of Door Switch
    G04122419Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: GO TO 3.
    • NG: Replace door switch.
  3. CHECK DOOR SWITCH CIRCUIT 
    1. Disconnect BCM connector.
    2. Check continuity between door switch harness connector B17, B20, B23, B32 terminal 1 and BCM harness connector M1, B4 terminals 12, 13, 62, 63.

      Driver door 

      1 (W) -62 (W) : Continuity should exist. 

      Passenger door 

      1 (P) - 12 (P) : Continuity should exist. 

      Rear door LH 

      1 (P) - 63 (P) : Continuity should exist. 

      Rear door RH 

      1 (P) - 13 (P) : Continuity should exist. 

    3. Check continuity between door switch harness connector B17, B20, B23, B32 terminal 1 and ground.

      1 (W or P) - Ground : Continuity should not exist. 

    Fig 5: Identifying Continuity Between Door Switch Harness Connector B17, B20, B23, B32 Terminal 1 And Ground
    G04122420Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    • OK: Check door switch case ground condition.
    • NG: Repair or replace harness between BCM and door switch.
scientia non olet · About LEMON Manuals