Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Lexus UX 200 BaseFACTORY OEM SERVICE PROCEDURE
DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U030057: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [07/2022 - ]: Description
- The forward recognition camera receives vehicle information (Conv/HV/EV) and vehicle information (transmission type) 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) and vehicle information (transmission type) from the vehicle information (Conv/HV/EV) and vehicle information (transmission type) sent from the hybrid vehicle control ECU, the forward recognition camera outputs U030051.
- When the vehicle information (Conv/HV/EV) and vehicle information (transmission type) sent from the hybrid vehicle control ECU does not match the vehicle information stored by the forward recognition camera, the forward recognition camera outputs U030057.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U030051 | Internal Control Module Software Incompatibility Not Programmed | Once 3 seconds elapse after turning the ignition switch to ON, the system is unable to determine the vehicle information (Conv/HV/EV) and vehicle information (transmission type) sent from the hybrid vehicle control ECU and vehicle information (Conv/HV/EV) and vehicle information (transmission type) sent from the forward recognition camera for approximately 3 seconds or more. |
|
| U030057 | Internal Control Module Software Incompatibility Invalid / Incompatible Software Component | Once 3 seconds elapse after turning the ignition switch to ON, the vehicle information (Conv/HV/EV) and vehicle information (transmission type) 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. |
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.