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Home >> Lexus >> 2020 >> UX 200 Base >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Diagnostic Codes (2 Of 2) & Circuit Tests) (Except Hybrid) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> Brake Warning Light does not Come ON [10/2018 - 07/2022] >> Procedure

Brake Warning Light does not Come ON [10/2018 - 07/2022]: Procedure

  1. INSPECT COMBINATION METER ASSEMBLY 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    4. Perform the Active Test of the combination meter assembly using the Techstream.

      Refer to DATA LIST / ACTIVE TEST [10/2018 - 07/2022]

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Brake Warning
    5. Check the combination meter assembly.

      OK

      The brake warning light / red (malfunction) turns on or off in accordance with Techstream operation.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022] 

    Result: 

    NG 

    INSPECT METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - 07/2022]