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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (BATTERY - RADIO RECEIVER) 
    Fig 1: Checking Harness And Connector (Battery - Radio Receiver)
    G05237131Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the radio receiver R16 connector.
    2. Measure the resistance according to the values in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      GND (R16-20) - Body ground (1) Always Below 1 Ω
      GND (R16-7) - Body ground (2) Always Below 1 Ω
      (1) Separate Type Amplifier
      (2) Built-in Type Amplifier
    3. Measure the voltage according to the values in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      +B (R16-1) - GND (R16-20) (1) Always 10 to 14 V
      B (R16-4) - GND (R16-7) (2) Always 10 to 14 V
      ACC (R16-11) - GND (R16-20) (1) Ignition SW ACC 10 to 14 V
      ACC (R16-3) - GND (R16-7) (2) Ignition SW ACC 10 to 14 V
      (1) Separate Type Amplifier
      (2) Built-in Type Amplifier

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE