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Inspection Procedure

NOTE: When replacing the skid control ECU, perform initialization of linear solenoid valve and calibration (see INITIALIZATION  ).
  1. CHECK DLC3 (TC VOLTAGE) 
    1. Turn the power switch ON (READY).
    2. Measure the voltage of the DLC3 connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D1-13 (TC) - Body ground 10 to 14 V
    3. Measure the resistance of the DLC3 connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D1-4 (CG) - Body ground Below 1 Ω

    NG : Go to step   3 

    Fig 1: Identifying DLC3 Connector Terminal
    G04474693Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  2. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if a CAN communication system DTC is output (see HOW TO PROCEED WITH TROUBLESHOOTING ).

      Result 

      RESULT REFERENCE

      Result Proceed to
      DTC is not output A
      DTC is output B

    B : REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

    A : REPLACE SKID CONTROL ECU 

  3. CHECK WIRE HARNESS AND CONNECTORS (DLC3 - ECM) 
    1. Disconnect the slid control ECU connector.
    2. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D1-13 (TC) - E6-14 (TC) Below 1 Ω
      D1-13 (TC) - Body ground 10 kΩ or higher

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 2: Disconnecting Slid Control ECU Connector
    G04474694Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  4. CHECK WIRE HARNESS (DLC3 - BODY GROUND) 
    1. Measure the resistance of the DLC3 connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      D1-4 (CG) - Body ground Below 1 Ω

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 3: Identifying DLC3 Connector Terminal
    G04474695Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  5. CHECK CAN COMMUNICATION SYSTEM 
    1. Check if a CAN communication system DTC is output (see HOW TO PROCEED WITH TROUBLESHOOTING ).

      Result 

      RESULT REFERENCE

      Result Proceed to
      DTC is not output A
      DTC is output B

    B : REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

    A : REPLACE SKID CONTROL ECU 

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