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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (For Vacuum Brake Booster) - Diagnostic Codes (B1380-U0074) & Symptom Tests >> VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster) >> Brake Warning Light does not Come ON [08/2019 - ] >> Procedure

Brake Warning Light does not Come ON [08/2019 - ]: Procedure

  1. INSPECT COMBINATION METER ASSEMBLY 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Perform Active Test of the combination meter assembly using the Techstream.
      BODY ELECTRICAL > COMBINATION METER > ACTIVE TEST

      Tester Display
      Indicat. Lamp Brake
    5. Check the combination meter assembly.

      OK

      The brake system warning light (red indicator) turns on or off in accordance with the Techstream.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [08/2019 - ] 

    Result: 

    NG 

    INSPECT METER / GAUGE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]