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Inspection Procedure

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (See CALIBRATION  ).
  1. INSPECT BRAKE WARNING LIGHT 
    1. Disconnect the skid control ECU (S38) connector.
    2. Turn the ignition switch to the ON position.
    3. Check that the BRAKE warning light comes on.

      OK: BRAKE warning light comes on. 

    OK: REPLACE MASTER CYLINDER SOLENOID 

    NG: Go to next step 

  2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
    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 CHART

      Tester Connection Specified Condition
      S38-3 (BRL) - C10-8 Below 1 Ω
      S38-3 (BRL) - Body ground 10 kΩ or higher

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

    Fig 1: Checking Harness And Connector (Skid Control ECU - Combination Meter)
    G05262777Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    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