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Home >> Lexus >> 2021 >> ES 300h Luxury >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (Hybrid) - Diagnostic Codes (1 Of 5) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C1203: ECM Communication Circuit [06/2018 - ] >> Typical Malfunction Thresholds

Typical Malfunction Thresholds

Both of the following conditions are met A and B
A. Test Mode Off
B. One of the following conditions is met -
Grade info Undetermined or different from a storage memory
Drive train info Undetermined or different from a storage memory
Steering info Undetermined or different from a storage memory
Car spec info There is no write-in