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Home >> Toyota >> 2017 >> Mirai >> Repair and Diagnosis (Single Page) >> Restraints >> Restraints Control Systems >> Pre-Collision System - Diagnostic Codes & Circuit Tests >> Pre-Collision System >> DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [11/2018 - ] >> 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 [11/2018 - ]: Description

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

If the forward recognition camera cannot store the vehicle information, it will store this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area
U0300-51 Internal Control Module Software Incompatibility Not Programmed When the power switch is on (IG) for 3 seconds or more, the vehicle information sent from the EV control ECU cannot be verified by the forward recognition camera for 3 seconds or more.
  • EV control system
  • Forward recognition camera
  • EV control ECU
U0300-57 Internal Control Module Software Incompatibility Invalid / Incompatible Software Component When the power switch is on (IG) for 3 seconds or more, the vehicle information sent from the EV control ECU does not match that stored in the forward recognition camera for 1second or more.
  • EV control system
  • Forward recognition camera
  • EV control ECU