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Home >> Toyota >> 2013 >> Avalon XLE >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Automatic High Beam System (Diagnostic Codes) (Except Hybrid) >> Automatic High Beam System >> DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module >> Procedure

DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0151: Lost Communication with Restraints Control Module; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module: Procedure

  1. CHECK FOR DTC 
    1. Clear the DTCs. Refer to DTC CHECK / CLEAR .
    2. Check for DTCs. Refer to DTC CHECK / CLEAR .

      OK

      DTCs are not output.

    NG → See step   2 

    OK → See step   3 

  2. GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
  3. USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING 
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