LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2015 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Electrical >> Starter >> Entry Start System Start System (Keyless Start) >> Entry & Start System (Start Function) >> DTC U0073: Control module communication bus "A" off; DTC U0100: Lost Communication With ECM/PCM "A"; DTC U0101: Lost Communication With TCM; DTC U0122: Lost Communication With Vehicle Dynamics Control Module; DTC U0140: Lost Communication With Body Control Module; DTC U0155: Nonarrival Of H-CAN Data (METER); DTC U0401: Invalid Data Received From ECM/PCM "A"; DTC U0422: Invalid Data Received From Body Control Module >> Inspection steps
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection steps

CAUTION:
  • After repair, perform the [DTC output confirmation operation], and check that the DTC is not output again.
  1. DTC check
    1. Record the output DTC. (Refer to DTC CHECK/CLEAR  )

      Next: Go to "CAN communication system (How to troubleshoot)" (Refer to HOW TO TROUBLESHOOT )

scientia non olet · About LEMON Manuals