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Inspection Procedure

  1. CHECK HARNESS AND CONNECTOR (BATTERY - RADIO RECEIVER) 
    1. Disconnect the radio receiver R16 connector.
    2. Measure the resistance according to the values in BATTERY - RADIO RECEIVER (RESISTANCE)  .

      Standard resistance 

      BATTERY - RADIO RECEIVER (RESISTANCE)

      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 BATTERY - RADIO RECEIVER (VOLTAGE)  .

      Standard voltage 

      BATTERY - RADIO RECEIVER (VOLTAGE)

      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
      Fig 1: Checking Harness And Connector (Battery - Radio Receiver)
      G04466722Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

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

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