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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 - ] >> Component Operating Range

Component Operating Range

All of the following conditions are met -
EEPROM read-in Complete
IG1 On
Test Mode Off
Grade info Decision and concordance from a storage memory
Drive train info Decision and concordance from a storage memory
Steering info Decision and concordance from a storage memory
Car spec info There is write-in
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