2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE

Combination Switch Inspection

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. SYSTEM CHECK 

    Referring to table below, check to which system the malfunctioning switch belongs.

    SYSTEM REFERENCE

    System 1 System 2 System 3 System 4 System 5
    - FR WASHER FR WIPER LO TURN LH TURN RH
    FR WIPER HI - FR WIPER INT PASSING HEAD LAMP1
    INT VOLUME 1 - - HEAD LAMP2 HI BEAM
    - INT VOLUME 3 AUTO LIGHT - TAIL LAMP
    INT VOLUME 2 - - FR FOG -

    : GO TO 2.

  2. SYSTEM CHECK 

    With CONSULT-II 

    CAUTION: If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be detected in self-diagnosis depending on control unit which carries out CAN communication.
    1. Connect CONSULT-II, and select "COMB SW" on "SELECT TEST ITEM" screen.
    2. Select "DATA MONITOR".
    3. Select "START", and confirm that other switches in malfunctioning system operate normally.

      Example: When auto light switch is malfunctioning, confirm that "FRONT WIPER LOW" and "FRONT WIPER INT" in System 3, to which the auto light switch belongs, turn ON-OFF normally.

      4. Fig 1: CONSULT-II Display - DATA MONITOR
      G04188671Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    Operate combination switch, and confirm that other switches in malfunctioning system operate normally.

    Example: When auto light switch is malfunctioning, confirm that "FRONT WIPER LOW" and "FRONT WIPER INT" in System 3, to which the auto light switch belongs, operate normally.

    Check results 

    Other switches in malfunctioning system operate normally.: Replace lighting switch or wiper switch.

    Other switches in malfunctioning system do not operate normally.: GO TO 3.

  3. HARNESS INSPECTION 
    1. Turn ignition switch OFF.
    2. Disconnect BCM and combination switch connectors.
    3. Check for continuity between BCM harness connector of the suspect system and the corresponding combination switch connector terminals.
      Fig 2: Checking Continuity Between BCM Harness Connector Of Suspect System And Corresponding Combination Switch Connector Terminals
      G04188672Courtesy of NISSAN MOTOR CO., U.S.A.
      TERMINALS CONTINUITY REFERENCE

      Suspect system Terminals   Continuity
      BCM Combination switch
      Connector Terminal Connector Terminal
      1 M18 Input 1 6 M28 6 Yes
      Output 1 36 1
      2 Input 2 5 7
      Output 2 35 2
      3 Input 3 4 10
      Output 3 34 3
      4 Input 4 3 9
      Output 4 33 4
      5 Input 5 2 8
      Output 5 32 5
    4. Check for continuity between each terminal of BCM harness connector in suspect malfunctioning system and ground.
      TERMINALS CONTINUITY REFERENCE

      Suspect system Terminals   Continuity
      BCM  
      Connector Terminal
      1 M18 Input 1 6 Ground No
      Output 1 36
      2 Input 2 5
      Output 2 35
      3 Input 3 4
      Output 3 34
      4 Input 4 3
      Output 4 33
      5 Input 5 2
      Output 5 32

    OK or NG 

    OK: GO TO 4.

    NG: Check harness between BCM and combination switch for open or short circuit.

  4. BCM OUTPUT TERMINAL INSPECTION 
    1. Turn lighting switch and wiper switch to OFF.
    2. Set wiper dial to position 4.
    3. Turn ignition switch ON.
    4. Connect BCM and combination switch connectors
    5. Check BCM output terminal voltage waveform of suspect malfunctioning system.
      Fig 3: Checking BCM Output Terminal Voltage Waveform Of Suspect Malfunctioning System
      G04188673Courtesy of NISSAN MOTOR CO., U.S.A.
      COMBINATION SWITCH CONNECTOR TERMINALS REFERENCE

      Suspect system Combination switch (+)
      Connector Terminal
      1 M28 Input 1 1
      2 Input 2 2
      3 Input 3 3
      4 Input 4 4
      5 Input 5 5

    OK or NG 

    OK: Open circuit in combination switch, GO TO 5.

    NG: Replace BCM. Refer to "BCM ".

  5. COMBINATION SWITCH INSPECTION 

    Referring to table below, perform combination switch inspection.

    COMBINATION SWITCH INSPECTION PROCEDURE

    Procedure
    1 2 3 4 5 6 7
    Replace lighting switch. Confirm check results. OK INSPECTION END Confirm check results. OK INSPECTION END Confirm check results. OK INSPECTION END
    NG Replace wiper switch. NG Replace switch base. NG Confirm symptom again.

    : Inspection End.

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.