DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U0300-57: Internal Control Module Software Incompatibility Invalid/Incompatible Software Component [05/2019 - ]: Description

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