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Inspection Procedure

  1. CHECK CAN BUS LINE (MAIN WIRE FOR OPEN, BUS LINES FOR SHORT CIRCUIT) 
    1. Measure the resistance of the DLC3.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition Proceed to
      D1-6 (CANH) - D1-14 (CANL) Power switch OFF 54 to 69 Ω OK
      D1-6 (CANH) - D1-14 (CANL) Power switch OFF 69 Ω or more NG-A
      D1-6 (CANH) - D1-14 (CANL) Power switch OFF 54 Ω or less NG-B
      Fig 1: Identifying DLC3 Connector Terminals
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG-A: CHECK CAN MAIN WIRE FOR OPEN 

    NG-B: CHECK CAN BUS LINES FOR SHORT CIRCUIT 

    OK : GO TO NEXT STEP 

  2. CHECK CAN BUS LINE FOR SHORT TO +B 
    1. Measure the resistance of the DLC3.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      D1-6 (CANH) - D1-16 (BAT) Power switch OFF 1 MΩ or more
      D1-14 (CANL) - D1-16 (BAT) Power switch OFF 1 MΩ or more
      Fig 2: Identifying DLC3 Connector Terminals
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : CHECK CAN BUS LINE FOR SHORT TO +B 

    OK : GO TO NEXT STEP 

  3. CHECK CAN BUS LINE FOR SHORT TO GND 
    1. Measure the resistance of the DLC3.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      D1-4 (CG) - D1-6 (CANH) Power switch OFF 1 kΩ or more
      D1-4 (CG) - D1-14 (CANL) Power switch OFF 1 kΩ or more
      Fig 3: Identifying DLC3 Connector Terminals
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : CHECK CAN BUS LINE FOR SHORT TO GND 

    OK : HOW TO PROCEED WITH TROUBLESHOOTING 

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