Home >> Toyota >> 2021 >> Corolla L >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Except HEV) (W/ Electric Parking Brake) - Diagnostic Codes (4 Of 7) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System) >> DTC C0597-04: Brake System Control Module "A" System Internal Failure [08/2023 - ] >> Component Operating Range