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Home >> Lexus >> 2021 >> UX 250h Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Diagnostic Codes) (1 Of 4) (Hybrid) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1203: ECM Communication Circuit [10/2018 - ] >> Monitor Strategy

Monitor Strategy

Related DTCs C124A: CAN communication identification signal
Required Sensors/Components(Main) Skid control ECU (brake booster with master cylinder assembly)
Required Sensors/Components(Related) Skid control ECU (brake booster with master cylinder assembly)
Speed sensor
Frequency of Operation Continuous
Duration -
MIL Operation Immediately
Sequence of Operation None