LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Scion >> 2016 >> FR-S Automatic Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Meter / Gauge / Display (Diagnostic Codes & Symptom Tests) >> Meter / Gauge System >> DTC U0073: Control Module Communication Bus "A" Off; DTC U0100: Lost Communication With ECM / Pcm "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0131: Lost Communication With Power Steering Control Module; DTC U0140: Lost Communication With Body Control Module; DTC U0151: Lost Communication With Restraints Control Module [05/2014 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U0073: Control Module Communication Bus "A" Off; DTC U0100: Lost Communication With ECM / Pcm "A"; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0131: Lost Communication With Power Steering Control Module; DTC U0140: Lost Communication With Body Control Module; DTC U0151: Lost Communication With Restraints Control Module [05/2014 - ]: Procedure

  1. CONFIRM DTC OUTPUT 
    1. Check DTC. Refer to DTC CHECK / CLEAR [05/2014 - ] .
      Result Proceed to
      CAN communication DTC is not output A
      CAN communication DTC is output B

    B → See step   2 

    A → See step   3 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2014 - ] 
  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2014 - ]