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

Steering Wheel Audio Control Switch Check

WARNING: This page is about a different car, the 2003 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 steering wheel audio control switch.

    Does steering wheel audio control switch operate normally?

    1. OK : Inspection end.
    2. NG : GO TO 2
  2. CHECK HARNESS 
    1. Turn ignition switch OFF.
    2. Disconnect A/C and AV switch connector and spiral cable connector.
    3. Check continuity between spiral cable harness connector terminals and A/C and AV switch harness connector terminals.
      STEERING WHEEL AUDIO CONTROL SWITCH HARNESS CHECK CHART

      Terminals Continuity
      spiral cable A/C and AV switch
      Connector Terminal Connector Terminal (Wire color)
      M31 32 (G) M48 13 (G) Yes
      31 (B/W) 14 (B/W)
      24 (R) 12 (R)
    4. Check continuity between A/C and AV switch and ground.
      A/C AND AV SWITCH CONTINUITY CHECK CHART

      Terminals Continuity
      A/C and AV switch (+) (-)
      Connector Terminal (Wire color)
      M48 12 (R) Ground No
      13 (G)
      14 (B/W)
      Fig 1: Checking Continuity Between Spiral Cable Harness Connector Terminals And A/C And AV Switch Harness Connector Terminals, And Between A/C And AV Switch And Ground
      G03359952Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG

    1. OK : GO TO 2.
    2. NG : Repair harness.
  3. SPIRAL CABLE CHECK 

    Check spiral cable harness.

    OK or NG

    1. OK : GO TO 4
    2. NG : Replace spiral cable.
  4. CHECK AUDIO STEERING WHEEL SWITCH RESISTANCE 

    Check resistance between audio steering wheel switch terminals.

    AUDIO STEERING WHEEL SWITCH RESISTANCE 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 17 Seek up Depress (station) up switch. Approx. 165
    Mode Depress mode switch. Approx. 0
    Volume (up) Depress volume up switch. Approx. 652

    OK or NG

    1. OK : Replace AV and A/C switch.
    2. NG : Replace steering wheel audio control switch.
    Fig 2: Checking Resistance Between Audio Steering Wheel Switch Terminals
    G03359953Courtesy of NISSAN MOTOR CO., U.S.A.
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