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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DLC3 
    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 108 to 132 Ω A
      D1-6 (CANH) - D1-14 (CANL) Power switch OFF 132 Ω or more B
      NOTE: When the measured value is 132 Ω or more and the CAN communication system DTC is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again from HOW TO PROCEED WITH TROUBLESHOOTING  after repairing the trouble area.
      Fig 1: Identifying DLC3 Connector Terminals
      G04021879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B : REPLACE DLC3 BRANCH WIRE AND CONNECTOR (CANH, CANL) 

    A : GO TO NEXT STEP 

  2. CHECK CAN MAIN WIRE FOR DISCONNECTION (BUS CHECK) 
    1. Perform "BUS CHECK" using the intelligent tester via the CAN VIM (see DIAGNOSIS SYSTEM ).

      Result 

      RESULT

      Result Proceed to
      Only "ENGINE" is not displayed A
      Only "HV BATTERY" is not displayed B
      Other ("ENGINE" and "HV BATTERY" are not displayed) C

    B : Go to step   4 

    C : Go to step   5 

    A : GO TO NEXT STEP 

  3. CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM - J/C2) 
    1. Disconnect the E6 ECM connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      E6-31 (CANH) - E6-30 (CANL) Power switch OFF 108 to 132 Ω
      Fig 2: Checking CAN Main Wire Disconnection (ECM - J/C2)
      G04477382Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE CAN MAIN WIRE AND CONNECTOR (ECM - J/C2) 

    OK : REPLACE ECM 

  4. CHECK CAN MAIN WIRE FOR DISCONNECTION (BATTERY ECU - J/C1) 
    1. Disconnect the B11 battery ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      B11-18 (CANH) - B11-19 (CANL) Power switch OFF 108 to 132 Ω
      Fig 3: Checking CAN Main Wire Disconnection (Battery ECU - J/C1)
      G04477383Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE CAN MAIN WIRE AND CONNECTOR (BATTERY ECU - J/C1) 

    OK : REPLACE BATTERY ECU 

  5. CHECK CAN MAIN WIRE FOR DISCONNECTION (J/C1 - ECM) 
    1. Disconnect the J15 J/C1 connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      J15-17 (CANH) - J15-6 (CANL) Power switch OFF 108 to 132 Ω
      Fig 4: Checking CAN Main Wire Disconnection (J/C1 - ECM)
      G04477384Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : Go to step   8 

    OK : GO TO NEXT STEP 

  6. CONNECT CONNECTOR 
    1. Reconnect the J15 J/C1 connector.

    NEXT 

  7. CHECK CAN MAIN WIRE FOR DISCONNECTION (BATTERY ECU - J/C1) 
    1. Disconnect the B11 battery ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      B11-18 (CANH) - B11-19 (CANL) Power switch OFF 108 to 132 Ω
      Fig 5: Checking CAN Main Wire Disconnection (Battery ECU - J/C1)
      G04477385Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE CAN MAIN WIRE AND CONNECTOR (BATTERY ECU - J/C1) 

    OK : REPLACE BATTERY ECU 

  8. CONNECT CONNECTOR 
    1. Reconnect the J15 J/C1 connector.

    NEXT 

  9. CHECK CAN MAIN WIRE FOR DISCONNECTION (J/C2 - J/C1) 
    1. Disconnect the J18 J/C2 connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      J18-18 (CANH) - J18-7 (CANL) Power switch OFF 108 to 132 Ω
      Fig 6: Checking CAN Main Wire Disconnection (J/C2 - J/C1)
      G04477386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE CAN MAIN WIRE AND CONNECTOR (J/C2 - J/C1) 

    OK : GO TO NEXT STEP 

  10. CONNECT CONNECTOR 
    1. Reconnect the J18 J/C2 connector.

    NEXT 

  11. CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM - J/C2) 
    1. Disconnect the E6 ECM connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION - SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      E6-31 (CANH) - E6-30 (CANL) Power switch OFF 108 to 132 Ω
      Fig 7: Checking CAN Main Wire Disconnection (ECM - J/C2)
      G04477387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE CAN MAIN WIRE AND CONNECTOR 

    OK : REPLACE ECM 

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