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Sound Signal Circuit between Navigation Receiver Assembly and Stereo Component Amplifier: Procedure

  1. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER) 
    1. Disconnect the E52 navigation receiver assembly connector.
    2. Disconnect the E20 stereo component amplifier assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E52-8 (R+) - E20-5 (R+) Always Below 1 Ω
      E52-18 (R-) - E20-4 (R-) Always Below 1 Ω
      E52-9 (L+) - E20-3 (L+) Always Below 1 Ω
      E52-19 (L-) - E20-2 (L-) Always Below 1 Ω
      E52-10 (SLD) - Body ground Always 10 kΩ or higher
      E52-8 (R+) - Body ground Always 10 kΩ or higher
      E52-18 (R-) - Body ground Always 10 kΩ or higher
      E52-9 (L+) - Body ground Always 10 kΩ or higher
      E52-19 (L-) - Body ground Always 10 kΩ or higher

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK → See step   2 

  2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE  .