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Home >> Lexus >> 2011 >> IS F >> Repair and Diagnosis >> External Pages >> Different car >> Section 99 (Audio / Visual System (Symptom Tests (Cont.)) >> Audio And Visual System >> Symptom Tests >> Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier (TO 12/2010) >> Procedure
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Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier (TO 12/2010): Procedure

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the radio receiver assembly and stereo component amplifier assembly connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E31-19 (L-) - E20-2 (L-) Always Below 1 Ω
      E31-9 (L+) - E20-3 (L+) Always Below 1 Ω
      E31-18 (R-) - E20-4 (R-) Always Below 1 Ω
      E31-8 (R+) - E20-5 (R+) Always Below 1 Ω
      E31-10 (SLD) - Body ground Always 10 kΩ or higher
      E31-19 (L-) - Body ground Always 10 kΩ or higher
      E31-9 (L+) - Body ground Always 10 kΩ or higher
      E31-18 (R-) - Body ground Always 10 kΩ or higher
      E31-8 (R+) - 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