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DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed [08/2019 - ]: Procedure

  1. CHECK FOR DTCs 
    1. Using the Techstream, check for SFI system DTCs.

      Powertrain > Engine > Trouble Codes 

      Result

      Result Proceed to
      SFI system DTCs are not output A
      SFI system DTCs are output B

    Result: 

    GO TO SFI SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2015 - ] 

    Result: 

    See step  2

  2. CHECK FOR DTCs (HEALTH CHECK) 
    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: System Select / Health Check.
    5. Check DTCs.
    6. Turn the engine switch off.

      OK

      DTCs indicating a vehicle information mismatch with the ECM are not output by any ECU other than the forward recognition camera.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FORWARD RECOGNITION CAMERA. Refer to  COMPONENTS [08/2019 - ] 

    Result: 

    NG 

    REPLACE ECM. Refer to  COMPONENTS [09/2015 - ]