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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DLC3 
    1. Turn the power switch off.
    2. Measure the resistance according to the value(s) in the table below.

    Result: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value Result
    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
    Fig 1: Identifying DLC3 Connector Terminals
    G02919890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    NOTE: When the measured value is 132 Ω or more and the CAN communication system diagnostic code is output, there may be a fault besides disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "HOW TO PROCEED WITH TROUBLESHOOTING" (see HOW TO PROCEED WITH TROUBLESHOOTING  ) after repairing the trouble area.

    B: REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    A: Go to next step. 

  2. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (BUS CHECK) 
    1. Perform "BUS CHECK" using the hand-held tester via CAN VIM (see DIAGNOSIS SYSTEM  ).

    Result: 

    BUS CHECK RESULT

    Specified Value Result
    Only "ENGINE" is not displayed A
    Only "HV BATTERY" is not displayed B
    Other C

    B: Go to step   4 

    C: Go to step   5 

    A: Go to next step. 

  3. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (ECM - J/C2) 
    1. Disconnect the ECM connector (E6).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    E6-31 (CANH) - E6-30 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 2: Disconnecting E6 ECM Connector
    G02919891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CAN MAIN BUS LINE OR CONNECTOR (ECM - J/C2) 

    OK: REPLACE ECM  

  4. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (BATTERY ECU - J/C1) 
    1. Disconnect the battery ECU connector (B11).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    B11-18 (CANH) - B11-19 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 3: Disconnecting (B11) ECU Connector
    G02919892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CAN MAIN BUS LINE OR CONNECTOR (BATTERY ECU - J/C1) 

    OK: REPLACE BATTERY ECU ASSY  

  5. CHECK CAN MAIN BUS LINE FOR DISCONNECTION(J/C1 - ECM) 
    1. Disconnect the J/C1 connector (J15).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    J15-17 (CANH) - J15-6 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 4: Disconnecting J/C1 Connector (J15)
    G02919893Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   8 

    OK: Go to next step. 

  6. CONNECT CONNECTOR 
    1. Reconnect the J/C1 connector (J15).
  7. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (BATTERY ECU - J/C1) 
    1. Disconnect the battery ECU connector (B11).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    B11-18 (CANH) - B11-19 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 5: Disconnecting (B11) ECU Connector
    G02919894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CAN MAIN BUS LINE OR CONNECTOR (BATTERY ECU - J/C1) 

    OK: REPLACE BATTERY ECU ASSY  

  8. CONNECT CONNECTOR 
    1. Reconnect the J/C1 connector (J15).
  9. CHECK CAN MAIN BUS LINE FOR DISCONNECTION(J/C2 - J/C1) 
    1. Disconnect the J/C2 connector (J18).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    J18-18 (CANH) - J18-7 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 6: Disconnecting J/C2 Connector (J18)
    G02919895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CAN MAIN BUS LINE OR CONNECTOR (J/C2 - J/C1) 

    OK: Go to next step. 

  10. CONNECT CONNECTOR 
    1. Reconnect the J/C2 connector (J18).
  11. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (ECM - J/C2) 
    1. Disconnect the ECM connector (E6).
    2. Measure the resistance according to the value(s) in the table below.

    Standard: 

    TESTER CONNECTION SPECIFIED VALUE

    Tester Connection Condition Specified value
    E6-31 (CANH) - E6-30 (CANL) Power Switch OFF 108 to 132 Ω
    Fig 7: Disconnecting E6 ECM Connector
    G02919896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE CAN MAIN BUS LINE OR CONNECTOR 

    OK: REPLACE ECM  

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