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
Pre-Collision (Diagnostic Codes)
- Pre-Collision System
- Vehicle Control History [10/2018 - 07/2022]
- Vehicle Control History [07/2022 - ]
- DTC C1425-71: Stop Light Relay Actuator Stuck [10/2018 - 07/2022]
- DTC C1425-71: Stop Light Relay Actuator Stuck [07/2022 - ]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U012587: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012687: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U029387: Lost Communication with Hybrid Powertrain Control Module Missing Message [10/2018 - 07/2022]
- DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U012687: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U012987: Lost Communication with Brake System Control Module Missing Message; DTC U013187: Lost Communication with Power Steering Control Module Missing Message; DTC U029387: Lost Communication with Hybrid Powertrain Control Module Missing Message [07/2022 - ]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Missing Message [10/2018 - 08/2021]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Missing Message [08/2021 - 07/2022]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Missing Message [07/2022 - ]
- DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [10/2018 - 07/2022]
- DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [07/2022 - ]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U030057: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [10/2018 - 07/2022]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed; DTC U030057: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [07/2022 - ]
- DTC U0328-51: Software Incompatibility with Steering Angle Sensor Module Not Programmed; DTC U032857: Software Incompatibility with Steering Angle Sensor Module Invalid/Incompatible Software Component [07/2022 - ]
- DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [10/2018 - 07/2022]
- DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [07/2022 - ]
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.
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