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Inspection Procedure

  1. CHECK SLIP INDICATOR LIGHT 
    1. Disconnect the skid control ECU connector.
    2. Turn the ignition switch to the ON position.
    3. Ground terminal IND of the skid control ECU.
    4. Check the SLIP indicator light.

      OK 

      SLIP INDICATOR LIGHT CINDITION CHART

      IND - GND Condition Illumination Condition
      Connecting ON
      Disconnecting OFF
    5. Turn the ignition switch to OFF.
    6. Reconnect the skid control ECU connector.

    OK: REPLACE MASTER CYLINDER SOLENOID 

    Fig 1: Identifying Skid Control ECU Connector
    G05199323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to Next Step 

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    1. Disconnect the skid control ECU connector.
    2. Disconnect the combination meter connector.
    3. Measure the resistance.

      Standard 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      S1-34 (IND) - C9-36 Below 1 Ω
      S1-34 (IND) - Body ground 10 kΩ or higher
    4. Reconnect the combination meter connector.
    5. Reconnect the skid control ECU connector.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 2: Identifying Combination Meter & Skid Control ECU Connectors
    G05199322Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  3. INSPECT COMBINATION METER ASSEMBLY 
    1. Check the combination meter system. (See COMBINATION METER ).

      OK: Combination meter is normal. 

    NG: REPLACE COMBINATION METER ASSEMBLY 

    OK: CHECK FOR INTERMITTENT PROBLEMS 

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