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Home >> Lexus >> 2012 >> LS 460L AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System (Diagnostic Codes & Symptom Tests) >> Power Steering System >> DTC U0100, U0129, U0130, U1104, U1105: Lost Communication with ECM/PCM "A"; Lost Communication with Brake System Control Module; Lost Communication with Steering Effort Control Module; Lost Communication with Driving Support ECU; Lost Communication with Parking Assist ECU >> Procedure

DTC U0100, U0129, U0130, U1104, U1105: Lost Communication with ECM/PCM "A"; Lost Communication with Brake System Control Module; Lost Communication with Steering Effort Control Module; Lost Communication with Driving Support ECU; Lost Communication with Parking Assist ECU: Procedure

  1. CHECK DTC 
    1. Using the Techstream, check for DTCs. Refer to DTC CHECK/CLEAR .

    NEXT → See step   2 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
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