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Home >> Toyota >> 2019 >> Avalon XLE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Active Noise Control System - Diagnostic Codes & Circuit Tests >> Active Noise Control System >> DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message [04/2018 -] >> Procedure
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DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message [04/2018 -]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Active Noise Control > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > Active Noise Control > Trouble Codes 

      OK

      DTC U0100-87, U0129-87 and U0140-87 are not output

      Result

      Proceed to
      OK
      NG

      HINT: 

      • If CAN communication system malfunction DTCs are output, they may also be output for other systems.
      • If the CAN communication system has been checked and repaired in other systems, the DTC will not be output after rechecking for DTCs.
      • If the DTC is output frequently, duplicate the conditions that cause a malfunction and perform the check again, even though the DTC was not output after rechecking for DTCs.

        Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -]

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -]