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 (Conv/HV/EV) from the hybrid vehicle control ECU via the CAN communication line.
When the forward recognition camera is unable to determine the vehicle information (Conv/HV/EV) from the vehicle information (Conv/HV/EV) sent from the hybrid vehicle control ECU, the forward recognition camera outputs U0300-51.
When the vehicle information (Conv/HV/EV) 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	Once 3 seconds elapse after turning the power switch on (IG), the system is unable to determine the vehicle information (Conv/HV/EV) sent from the hybrid vehicle control ECU and vehicle information (Conv/HV/EV) sent from the forward recognition camera for approximately 3 seconds or more	Hybrid control system Forward recognition camera Hybrid vehicle control ECU
U0300-57	Internal Control Module Software Incompatibility Invalid / Incompatible Software Component	Once 3 seconds elapse after turning the power switch on (IG), the vehicle information (Conv/HV/EV) sent from the hybrid vehicle control ECU does not match the vehicle information stored by the forward recognition camera for approximately 1 second or more	Hybrid control system Forward recognition camera Hybrid vehicle control ECU