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Home >> Toyota >> 2021 >> Corolla LE >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Except HEV) (W/ Electric Parking Brake) - Diagnostic Codes (7 Of 7), Symptom Tests & Circuit Tests >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System) >> Brake Warning Light does not Come ON [11/2022 - ] >> Procedure

Brake Warning Light does not Come ON [11/2022 - ]: Procedure

  1. CHECK VEHICLE 
    1. Check the combination meter assembly.

      Result

      Result Proceed to
      except 12.3 Inch Display A
      for 12.3 Inch Display B

    Result: 

    B 

    See step  3

    Result: 

    A 

    See step  2

  2. INSPECT COMBINATION METER ASSEMBLY 
    1. Connect the GTS to the DLC3.
    2. Turn the ignition switch to ON.
    3. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    4. Perform the Active Test of the combination meter assembly using the GTS.

      Refer to DATA LIST / ACTIVE TEST [11/2022 - ]

      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 GTS operation.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    INSPECT METER / GAUGE SYSTEM 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2022 - ]

  3. INSPECT COMBINATION METER ASSEMBLY 
    1. Connect the GTS to the DLC3.
    2. Turn the ignition switch to ON.
    3. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    4. Perform the Active Test of the combination meter assembly using the GTS.

      Refer to DATA LIST / ACTIVE TEST [09/2022 - 09/2024] , or refer to DATA LIST / ACTIVE TEST [09/2024 - ]

      Body Electrical > Combination Meter > Active Test 

      Tester Display
      Multi Display All (White)
    5. Check the combination meter assembly.

      OK

      The multi-information display turns on or off in accordance with GTS operation.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY 

    Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    INSPECT METER / GAUGE SYSTEM 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2022 - ]