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Home >> Toyota >> 2021 >> Corolla LE >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> HEADUP Display System - Diagnostic Codes >> HEADUP Display 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; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [06/2018 - 09/2022] >> 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; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [06/2018 - 09/2022]: Procedure

  1. CHECK FOR DTC (HEADUP DISPLAY SYSTEM) 
    1. Check for headup display system DTCs.

      Body Electrical > Head Up Display > Trouble Codes 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - 09/2022] 

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