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Inspection Procedure

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS LINES FOR SHORT CIRCUIT (DLC3 SUB BUS LINE) 
    1. Disconnect the J32 DLC3 sub bus line connector from the junction connector B side.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
        Fig 1: Disconnecting J32 DLC3 Sub Bus Line Connector From Junction Connector B Side
        G04439191Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 2: Measuring Resistance Of DLC3
      G04439192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (DLC3 SUB BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 1 MΩ or higher

    NG: REPAIR OR REPLACE DLC3 SUB BUS LINE AND CONNECTOR 

    OK: GO TO NEXT STEP 

  2. CONNECT CONNECTOR 
    1. Reconnect the J32 DLC3 sub bus line connector to the junction connector B side.
  3. CHECK CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE) 
    1. Disconnect the J29 ECM main bus line connector from the junction connector B side.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
        Fig 3: Disconnecting J29 ECM Main Bus Line Connector From Junction Connector B Side
        G04439193Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 4: Measuring Resistance Of DLC3
      G04439194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 108 to 132 Ω

    OK: Go to step   8 

    NG: GO TO NEXT STEP 

  4. CONNECT CONNECTOR 
    1. Reconnect the J29 ECM main bus line connector to the junction connector B side.
  5. CHECK CAN BUS LINES FOR SHORT CIRCUIT (GATEWAY ECU MAIN BUS LINE) 
    1. Disconnect the J30 gateway ECU main bus line connector from the junction connector B side.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
        Fig 5: Disconnecting J30 Gateway ECU Main Bus Line Connector From Junction Connector B Side
        G04439195Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 6: Measuring Resistance Of DLC3
      G04439196Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (GATEWAY ECU MAIN BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 108 to 132 Ω

    OK: Go to step   10 

    NG: GO TO NEXT STEP 

  6. CONNECT CONNECTOR 
    1. Reconnect the J30 gateway ECU main bus line connector to the junction connector B side.
  7. CHECK CAN BUS LINES FOR SHORT CIRCUIT (TRANSLATE ECU SUB BUS LINE) 
    1. Disconnect the J31 translate ECU sub bus line connector from the junction connector B side.
      NOTE:
      • Before disconnecting the connector, make a note of where it is connected.
      • Reconnect the connector to its original position.
        Fig 7: Disconnecting J31 Translate ECU Sub Bus Line Connector From Junction Connector B Side
        G04439197Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 8: Measuring Resistance Of DLC3
      G04439198Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (TRANSLATE ECU SUB BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 54 to 67 Ω

    OK: Go to step   12 

    NG: REPLACE JUNCTION CONNECTOR 

  8. CONNECT CONNECTOR 
    1. Reconnect the J29 ECM main bus line connector to the junction connector B side.
  9. CHECK CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE) 
    1. Disconnect the E8 ECM connector.
      Fig 9: Disconnecting E8 ECM Connector
      G04439199Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 10: Measuring Resistance Of DLC3
      G04439200Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (ECM MAIN BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 108 to 132 Ω

    OK: REPLACE ECM 

    NG: REPAIR OR REPLACE ECM MAIN BUS LINE AND CONNECTOR (CAN-H, CAN-L) 

  10. CONNECT CONNECTOR 
    1. Reconnect the J30 gateway ECU main bus line connector to the junction connector B side.
  11. CHECK CAN BUS LINES FOR SHORT CIRCUIT (GATEWAY ECU MAIN BUS LINE) 
    1. Disconnect the G4 gateway ECU connector.
      Fig 11: Disconnecting G4 Gateway ECU Connector
      G04439201Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 12: Measuring Resistance Of DLC3
      G04439202Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      CAN BUS LINES FOR SHORT CIRCUIT (GATEWAY ECU MAIN BUS LINE)

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 108 to 132 Ω

    OK: REPLACE GATEWAY ECU 

    NG: REPAIR OR REPLACE GATEWAY ECU MAIN BUS LINE AND CONNECTOR (CAN-H, CAN-L) 

  12. CONNECT CONNECTOR 
    1. Reconnect the J31 translate ECU sub bus line connector to the junction connector B side.
  13. CHECK CAN BUS LINES FOR SHORT CIRCUIT (TRANSLATE ECU SUB BUS LINE) 
    1. Disconnect the T29 translate ECU connector.
      Fig 13: Disconnecting T29 Translate ECU Connector
      G04439203Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the DLC3.
      Fig 14: Measuring Resistance Of DLC3
      G04439204Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION TABLE

      Tester Connection Condition Specified Condition
      D7-6 (CANH) - D7-14 (CANL) Ignition switch OFF 54 to 67 Ω

    OK: REPLACE TRANSLATE ECU 

    NG: REPAIR OR REPLACE TRANSLATE ECU SUB BUS LINE AND CONNECTOR (CAN-H, CAN-L) 

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