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Inspection Procedure

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (See CALIBRATION  ).
  1. INSPECT VSC TRAC WARNING LIGHT 
    1. Disconnect the skid control ECU connector.
    2. Ground terminal VSCW of the skid control ECU.
    3. Turn the ignition switch to the ON position.
    4. Check that the VSC TRAC warning light comes on.

      OK: VSC TRAC warning light comes on. 

    OK: REPLACE MASTER CYLINDER SOLENOID 

    NG: Go to Next Step 

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    Fig 1: Identifying Skid Control ECU Connector Terminals S37
    G05262769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the combination meter connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION TABLE

      Tester Connection Specified Condition
      S37-36 (VSCW) - C12-16 Below 1 Ω
      S37-36 (VSCW) - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (VSCW CIRCUIT) 

    OK: Go to Next Step 

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

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: END 

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