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Inspection Procedure

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (See CALIBRATION  ).
  1. INSPECT IF SKID CONTROL ECU CONNECTOR IS SECURELY CONNECTED 
    1. Check the skid control ECU Connector's connecting condition.

      OK: The connector should be securely connected. 

    NG: CONNECT CONNECTOR TO ECU 

    OK: Go To Next Step 

  2. INSPECT BATTERY 
    1. Check the battery voltage.

      Standard voltage: 

      11 to 14 V 

    NG: INSPECT CHARGING SYSTEM 

    OK: Go To Next Step 

  3. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    1. Disconnect the skid control ECU connector and combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION TABLE

      Tester Connection Condition Specified Condition
      S28-15 (INFR) - C10-17 Always Below 1 Ω
      S28-15 (INFR) - Body ground Always 10 kΩ or higher
      Fig 1: Identifying Harness Connector (Skid Control ECU - Combination Meter)
      G05556609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go To Next Step 

  4. INSPECT COMBINATION METER ASSEMBLY 
    1. Check the combination meter system (See HOW TO PROCEED WITH TROUBLESHOOTING ).

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: Go To Next Step 

  5. INSPECT SKID CONTROL ECU (CSW TERMINAL) 
    1. Disconnect the skid control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION TABLE

      Tester Connection Condition Specified Condition
      S28-43 (CSW) - Body ground VSC OFF switch is not pushed in 10 kΩ or higher
      Fig 2: Identifying Skid Control ECU Connector (CSW Terminal)
      G05556610Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: REPLACE MASTER CYLINDER SOLENOID 

    NG: Go to Next Step 

  6. INSPECT VSC OFF SWITCH 
    1. Disconnect the VSC OFF switch connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION TABLE

      Tester Connection Condition Specified Condition
      T19-3 - T19-4 Switch is pushed in Below 1 Ω
      T19-3 - T19-4 Switch is not pushed in 10 kΩ or higher
      Fig 3: Identifying VSC OFF Switch Connector
      G05556606Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE VSC OFF SWITCH 

    OK: Go To Next Step 

  7. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION TABLE

      Tester Connection Condition Specified Condition
      S28-43 (CSW) - T19-3 Always Below 1 Ω
      S28-43 (CSW) - Body ground Always 10 kΩ or higher
      T19-4 - Body ground Always Below 1 Ω
      Fig 4: Identifying Harness Connector (Skid Control ECU - VSC OFF Switch)
      G05556607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: CHECK FOR INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS   ) 

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