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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 (TS VOLTAGE) 
    1. Turn the power switch ON (READY).
    2. Measure the voltage of the DLC3.

      Standard voltage 

      STANDARD VOLTAGE SPECIFICATION

      Tester Connection Specified Condition
      D1-12 (TS) - D1-4 (CG) 10 to 14 V

    NG: Go to step  3

    Fig 1: Identifying DLC3 Connector Terminal
    G05189336Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  2. CHECK WIRE HARNESS (SKID CONTROL ECU - DLC3) 
    1. Disconnect the S8 ECU connector.
    2. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      S8-32 (TS) - D1-12 (TS) Below 1 Ω
      S8-32 (TS) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 2: Disconnecting S8 ECU Connector
    G05189337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE SKID CONTROL ECU 

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

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      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
    G05189334Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  4. CHECK WIRE HARNESS (SKID CONTROL ECU - DLC3) 
    1. Disconnect the S8 ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Specified Condition
      S8-32 (TS) - D1-12 (TS) Below 1 Ω
      S8-32 (TS) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 4: Disconnecting S8 ECU Connector
    G05189337Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE SKID CONTROL ECU