LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2013 >> Prius Four >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio / Video System (W/O Daytime Running Light) (Diagnostic Codes & Symptom Tests) (Except Plug-In) >> AUDIO AND VISUAL SYSTEM (w/o Daytime Running Light) >> 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 >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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: Procedure

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