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Home >> Toyota >> 2025 >> Land Cruiser Base >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Front Camera System - Diagnostic Codes & Circuit Tests >> Front Camera System >> DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid/Incompatible Software Component; DTC U0301-57: Software Incompatibility with ECM/PCM Invalid/Incompatible Software Component [02/2024 - ] >> Procedure
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DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid/Incompatible Software Component; DTC U0301-57: Software Incompatibility with ECM/PCM Invalid/Incompatible Software Component [02/2024 - ]: Procedure

  1. CHECK FOR DTCs (Engine) 
    1. Check for DTCs.

      Powertrain > Engine > Trouble Codes 

      HINT: 

      If DTC U0300-51, U0300-57 or U0301-57 is output, inspect the SFI system first as a SFI system DTC may be stored.

      Result

      Result Proceed to
      DTC is not output A
      DTC is output B

    Result: 

    GO TO SFI SYSTEM 

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2024 - ]

    Result: 

    See step  2

  2. CHECK FOR DTCs (HEALTH CHECK) 
    1. Using the GTS, perform a health check.

      OK

      ECUs other than the forward recognition camera do not output specification information mismatch DTCs related to the ECM.

      Result

      Result Proceed to
      DTC is not output A
      DTC is output B

    Result: 

    REPLACE ECM 

    Refer to REMOVAL [02/2024 - ]

    Result: 

    See step  3

  3. READ VALUE USING GTS (Powertrain Information) 
    1. Using the GTS, read the Data List.

      Chassis > Front Recognition Camera > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Powertrain Information Powertrain information Conventional, SS, HV, PHV, EV, 1MHV, FCV or Default Value Conventional: Conventional vehicle
      SS: w/ Stop and start vehicle
      HV: HEV
      PHV: PHEV
      EV: BEV
      1MHV: 1MHV
      FCV: FCEV
      Default Value: Vehicle information not confirmed
      -

      Chassis > Front Recognition Camera > Data List 

      Tester Display
      Powertrain Information

      HINT: 

      • When the specification stored by the forward recognition camera and the vehicle specification do not match, there is a malfunction in the specification information stored by the forward recognition camera. Therefore, replace the forward recognition camera.
      • When the specification stored by the forward recognition camera and the vehicle specification match, a ECM with different specifications may be installed. Therefore, replace the ECM.

      Result

      Result Proceed to
      • Vehicle information stored in the forward recognition camera and actual vehicle specifications do not match
      • Not confirmed is displayed
      A
      Vehicle specification information stored in forward recognition camera and actual vehicle specifications match B

    Result: 

    REPLACE FORWARD RECOGNITION CAMERA 

    Refer to REMOVAL [02/2024 - ]

    Result: 

    REPLACE ECM 

    Refer to REMOVAL [02/2024 - ]