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Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio / Video System (Plug-In) (Diagnostic Codes & Symptom Tests) >> Audio And Visual System >> DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0293: Lost Communication with HV ECU; DTC U1135: Lost Communication with Plug-in Control Module >> Procedure
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DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0293: Lost Communication with HV ECU; DTC U1135: Lost Communication with Plug-in Control Module: Procedure

  1. CHECK DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Recheck for DTCs and check if the same DTC is output again.

      OK

      No DTCs are output.

    NG → See step   3 

    OK → See step   2 

  2. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  3. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING