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Home >> Lexus >> 2021 >> UX 200 Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Diagnostic Codes) (1 Of 2) (Except Hybrid) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model) >> DTC C0040-13: Brake Pedal Switch "A" Circuit Open [10/2018 - 07/2022] >> Description

DTC C0040-13: Brake Pedal Switch "A" Circuit Open [10/2018 - 07/2022]: Description

The brake pedal load sensing switch turns on when the brake pedal is depressed with a force exceeding a predetermined level.

The skid control ECU uses this circuit to detect if the brake pedal is depressed or not.

DTC No. Detection Item DTC Detection Condition Trouble Area
C0040-13 Brake Pedal Switch "A" Circuit Open An open or short in the brake pedal load sensing switch circuit continues for 0.5 seconds or more.
  • Brake pedal load sensing switch (Brake pedal support assembly)
  • Brake pedal load sensing switch circuit
  • Skid control ECU (Brake actuator assembly)