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Home >> Toyota >> 2021 >> Prius LE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Front Camera System - Diagnostic Codes >> 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 [07/2020 - ] >> Description
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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 [07/2020 - ]: Description

The forward recognition camera receives vehicle information from the hybrid vehicle control ECU via the CAN communication line.

When the forward recognition camera is unable to determine the vehicle information from the vehicle information sent from the hybrid vehicle control ECU, the forward recognition camera outputs U0300-51.

When the vehicle information sent from the hybrid vehicle control ECU does not match the vehicle information stored by the forward recognition camera, the forward recognition camera outputs U0300-57.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0300-51 Internal Control Module Software Incompatibility Not Programmed The forward recognition camera cannot confirm the vehicle information from the hybrid vehicle control ECU.
  • Hybrid control system
  • Forward recognition camera
  • Hybrid vehicle control ECU
U0300-57 Internal Control Module Software Incompatibility Invalid/Incompatible Software Component The vehicle information from the hybrid vehicle control ECU and that stored in the forward recognition camera do not match.
  • Hybrid control system
  • Forward recognition camera
  • Hybrid vehicle control ECU