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Inspection Procedure

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

      Standard: 

      CONTINUITY

      Tester connection Condition Specified condition
      GND - Body ground Constant Continuity
    2. Check that the voltage between terminals at each condition, as shown in the chart.

      Standard: 

      VOLTAGE SPECIFICATIONS

      Tester connection Condition Specified condition
      +B/BU+B - GND Constant 10 - 14 V
      ACC/ACC+B - GND Ignition switch ACC or ON 10 - 14 V
      Fig 1: Identifying Radio Receiver Assy Terminals
      G02894888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 2: Identifying Radio Receiver Assy Terminals - Separate Type Amplifier
      G02894889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
    2. OK: CHECK AND REPLACE RADIO RECEIVER ASSY