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Radio Receiver Power Source Circuit [09/2020 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY POWER SOURCE) 
    1. Disconnect the K173 and K172 radio receiver assembly connectors.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K172-1 (GND1) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      K172-4 (+B1) - K172-1 (GND1) Always 11 to 14 V
      K172-15 (ACC1) - K172-1 (GND1) Ignition switch ACC 11 to 14 V
      K173-19 (IG) - K172-1 (GND1) Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [09/2020 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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