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Home >> Lexus >> 2017 >> ES 350 >> Repair and Diagnosis (Single Page) >> Steering >> Power Steering >> Power Steering System (Diagnostic Codes & Circuit Tests) >> Power Steering System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U1104: Lost Communication with Driving Support ECU [07/2015 - ] >> Procedure

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U1104: Lost Communication with Driving Support ECU [07/2015 - ]: Procedure

  1. GO TO CAN COMMUNICATION SYSTEM 
    1. Go to CAN communication system (Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ] for with Central Gateway ECU. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [07/2015 - ] for without Central Gateway ECU).

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