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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) >> DTC C124A-00: ECM Communication [10/2018 - 07/2022] >> Description

DTC C124A-00: ECM Communication [10/2018 - 07/2022]: Description

If the vehicle information stored by the skid control ECU (brake actuator assembly) does not match that sent from the ECM or a new skid control ECU (brake actuator assembly) is installed and the vehicle information has not been stored, this DTC is stored.

DTC No. Detection Item DTC Detection Condition Trouble Area
C124A-00 ECM Communication Engine, drive source and destination information sent from the ECM does not match the information of the skid control ECU or there is no information in memory.
  • ECM
  • Skid control ECU (brake actuator assembly)