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Home >> Toyota >> 2021 >> Mirai Limited >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (2 Of 4) >> Electronically Controlled Brake System >> DTC C124A-00: ECM Communication [11/2020 - ] >> Description

DTC C124A-00: ECM Communication [11/2020 - ]: Description

DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority Note
C124A-00 ECM Communication Either of the following is detected:
  • The engine type, powertrain variation and destination information sent from the EV control ECU do not match the information stored in the No. 2 skid control ECU (brake actuator assembly).
  • No system information stored in the No. 2 skid control ECU (brake actuator assembly).
  • Incorrect EV control ECU installed
  • No. 2 skid control ECU (brake actuator assembly)
Brake/EPB A Output ECU: No. 2 skid control ECU (brake actuator assembly)
C124A-00 DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status The engine type, powertrain variation and destination information sent from the EV control ECU do not match the information stored in the No. 2 skid control ECU (brake actuator assembly) -
No system information stored in the No. 2 skid control ECU (brake actuator assembly) -
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.