LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Prius Base >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering >> Electronic Power Steering System >> DTC U0073: Control Module Communication Bus OFF; DTC U0121: Lost Communication with Anti-lock Brake System (ABS) Control Module >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK DTC 
    1. Using the Techstream (with CAN VIM), check for DTCs.

      OK : DTC is not output. 

    OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

    NG : GO TO CAN COMMUNICATION SYSTEM TROUBLESHOOTING