Diagnosis Procedure

2013 Nissan-Datsun Juke SL, 4WDSECTION Diagnosis Procedure
  1. CHECK STEERING SWITCH SIGNAL B CIRCUIT (TEL ADAPTER UNIT TO AUDIO UNIT) 
    1. Turn ignition switch OFF.
    2. Disconnect audio unit connector and TEL adapter unit connector.
    3. Check continuity between audio unit harness connector and TEL adapter unit harness connector.
      Audio unit TEL adapter unit Continuity
      Connector Terminal Connector Terminal
      M91 16 M127 18 Existed
    4. Check continuity between audio unit harness connector and ground.
      Audio unit Ground Continuity
      Connector Terminal
      M91 16 Not existed

      Is inspection result normal? 

      YES: GO TO 2.

      NO: Repair harness or connector.

  2. CHECK AUDIO UNIT VOLTAGE 
    1. Connect audio unit connector and TEL adapter unit connector.
    2. Turn ignition switch ON.
    3. Check voltage between audio unit harness connector terminals.
      Probe Standard Reference value (Approx.)
      (+) (-)
      Audio unit
      Connector Terminal Connector Terminal
      M91 16 M91 15 0 - 3.3 V 3.3 V

      Is inspection result normal? 

      YES: Replace TEL adapter unit. Refer to "REMOVAL AND INSTALLATION ".

      NO: Replace audio unit. Refer to "REMOVAL AND INSTALLATION ".

RENDER: 1.0x

NO RELATED

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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.