2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

Audio Steering Wheel Switch Check

WARNING: This page is about a different car, the 2004 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
  1. A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION CHECK 
    1. Start A/C and AV switch self-diagnosis function. Refer to "A/C AND AV SWITCH SELF-DIAGNOSIS FUNCTION  ".
    2. Operate audio steering wheel switch.

    Dose audio steering wheel switch operate normally?

    1. OK: INSPECTION END.
    2. NG: GO TO 2.
  2. CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE 
    1. Turn ignition switch OFF.
    2. Disconnect spiral cable connector.
    3. Check resistance between audio steering wheel switch terminals.
      RESISTANCE CHECK CHART

      Terminal Signal name Condition Resistance (ohm)
      16 17 Seek down Depress (station) down switch. Approx. 165
      Power Depress power switch. Approx. 0
      Volume (down) Depress volume down switch. Approx. 652
      20 Seek up Depress (station) up switch. Approx. 165
      Mode Depress mode switch. Approx. 0
      Volume (up) Depress volume up switch. Approx. 652
      Fig 1: Checking Resistance Between Audio Steering Wheel Switch Terminals
      G03492452Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 3.
    2. NG: Replace audio steering wheel switch.
  3. SPIRAL CABLE CHECK 
    1. Disconnect spiral cable connector.
    2. Check continuity between spiral cable harness connector terminals.
      CONTINUITY CHECK CHART

      Terminals Continuity
      Spiral cable
      Connector Terminal Connector Terminal
      M31 32 M203 16 Yes
      31 17
      24 20
      Fig 2: Checking Continuity Between Spiral Cable Harness Connector Terminals
      G03492453Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK: GO TO 4.
    2. NG: Replace spiral cable.
  4. CHECK HARNESS 
    1. Disconnect A/C and AV switch connector.
    2. Check continuity between spiral cable harness connector terminals and A/C and AV switch harness connector terminals.
      CONTINUITY CHECK CHART

      Terminals Continuity
      Spiral cable A/C and AV switch
      Connector Terminal (Wire color) Connector Terminal (Wire color)
      M31 32 (G) M48 13 (G) Yes
      31 (B/W) 14 (B/W)
      24 (R) 12 (R)
    3. Check continuity between A/C and AV switch and ground.
      Fig 3: Checking Continuity Between A/C And AV Switch Harness Connector And Ground
      G03492454Courtesy of NISSAN MOTOR CO., U.S.A.
      CONTINUITY CHECK CHART

      Terminals Continuity
      A/C and AV switch Ground
      Connector Terminal (Wire color)
      M48 12 (R) No
      13 (G)
      14 (B/W)

    OK or NG

    1. OK: INSPECTION END.
    2. NG: Repair harness or connector.
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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.