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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT RADIO RECEIVER ASSY (ILL+, ILL-) 
    1. Check that the voltage between terminals at each condition, as shown in the chart.

      Standard: 

      RADIO RECEIVER ASSY TERMINAL VOLTAGE

      Tester connection Condition Specified condition
      ILL+-GND Light control switch TAIL or HEAD 10 - 14V
      ILL-GND Light control switch HI or FLASH 10-14 V
      Fig 1: Identifying Radio Receiver Assy Connector Terminals
      G02861006Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: CHECK AND REPLACE RADIO RECEIVER ASSY 
    2. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR