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Home >> Toyota >> 2008 >> Highlander Base, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering (Except Hybrid) >> Power Steering System >> DTC U0073, U0100, U0129: Control Module Communication Bus OFF; Lost Communication with ECM/PCM "A1"; Lost Communication with Brake System Control Module >> Inspection Procedure
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Inspection Procedure

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

      OK: DTC is not output. 

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

    OK: CHECK INTERMITTENT PROBLEMS