LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2009 >> Matrix Base, Standard >> Repair and Diagnosis >> Steering >> Power Steering >> Power Assist Steering Systems >> Power Steering System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. RECONFIRM DTC 
    1. Clear the DTCs (See DTC CHECK / CLEAR  ).
    2. Check for DTCs.

      OK: 

      DTC is not output  .

      NG: GO TO CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

      OK: CHECK FOR INTERMITTENT PROBLEMS 

scientia non olet · About LEMON Manuals