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Home >> Toyota >> 2017 >> Prius Prime Advanced >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Automatic High Beam System (Exterior) - Diagnostic Codes & Symptom Tests >> Automatic High Beam System >> DTC U023A: Lost Communication With Image Processing Module "A" [09/2016 - ] >> Procedure

DTC U023A: Lost Communication With Image Processing Module "A" [09/2016 - ]: Procedure

  1. CLEAR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Trouble Codes.
    5. Clear the DTCs.

      Body Electrical > Main Body > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK FOR DTC 
    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Trouble Codes.
    5. Check for DTCs.

      Body Electrical > Main Body > Trouble Codes 

      OK

      DTC U023A is not output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2016 - 05/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [05/2019 - 07/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [07/2020 - 06/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2021 - ] 

    Result: 

    NG 

    GO TO CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2016 - 12/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2018 - ]