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Home › Nissan-Datsun › 2002 › Sentra SE-R, Automatic › Repair and Diagnosis › External Pages › Different car › Section 1788 (Audio, Visual, Navigation & Telephone System (Sedan)) › Audio › Steering Wheel Audio Control Switch Does Not Operate › Without Telephone System › Notes

Without Telephone System: Notes

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 STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE 
    1. Turn ignition switch OFF.
    2. Disconnect steering wheel audio control switch connector.
    3. Check resistance of steering wheel audio control switch. Refer to "STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE INSPECTION ".

      Resistance value is OK? 

    YES or NO 

    1. YES : GO TO 2.
    2. NO : Replace steering wheel audio control switch.
  2. CHECK STEERING WHEEL AUDIO CONTROL SWITCH CIRCUIT 
    1. Disconnect audio unit connector.
    2. Check continuity between audio unit harness connector M39 and combination switch (spiral cable) harness connector M23.
    CONNECTOR TERMINAL CONTINUITY REFERENCE

    Terminals Continuity
    Connector Terminal Connector Terminal
    M39 22 M23 24 Yes
    23 32
    25 31
    Fig 1: Identifying Continuity Between Audio Unit Harness Connector M39 And Combination Switch Connector M23
    G04124328Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : GO TO 3.
    2. NG : Repair harness or connector.
  3. CHECK AUDIO UNIT 
    1. Connect audio unit connector.
    2. Turn ignition switch ON.
    3. Check voltage between audio unit harness connector M39 terminal 22, 23 and ground.

      22 - Ground : Approx. 5 V 

      23 - Ground : Approx. 5 V 

      Fig 2: Identifying Voltage Between Audio Unit Harness Connector M39 Terminal 22, 23 And Ground
      G04124329Courtesy of NISSAN MOTOR CO., U.S.A.

    OK or NG 

    1. OK : Replace combination switch (spiral cable).
    2. NG : Replace audio unit.
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