Common Diagnostic Trouble Codes & Solutions

When you scan a vehicle after a repair, you may encounter diagnostic trouble codes (DTCs) related to advanced driver assistance systems. Understanding these codes and how to resolve them is essential for safe calibration and customer satisfaction.

Here are some common ADAS-related DTCs and tips for addressing them:

1. Camera misalignment or obstruction (e.g. DTC B10A5) – This code indicates the forward-facing camera can’t see properly. Check for a dirty or cracked windscreen, remove any stickers or dash accessories, then perform a camera calibration.
2. Radar sensor blocked or out of position (e.g. C1A16) – If the radar is covered by a bumper sticker or the mounting bracket is bent, you’ll get a blockage code. Remove obstructions, verify the bracket is straight and recalibrate the radar.
3. Steering angle sensor calibration required (e.g. C1231) – After suspension work or alignment, the steering angle sensor may need to be reset. Use your scan tool to calibrate the sensor on a level surface.
4. Yaw rate or lateral acceleration sensor fault (e.g. C0072) – These sensors support stability control and ADAS functions. Inspect wiring connections, ensure the sensor is mounted securely and perform calibration according to the service manual.
5. Wheel speed sensor signal lost (e.g. C0035) – A broken or dirty wheel speed sensor can disable stability control and ADAS functions. Clean or replace the sensor and check wiring harnesses.
6. Rain/light sensor error (e.g. B1026) – Automatic wipers and headlights may stop working if the sensor lens is dirty or not seated properly. Clean the sensor and inspect the mounting bracket.
7. Lane departure camera internal error (e.g. U3000) – This general code can indicate a software issue or module failure. Update the camera module firmware or replace the unit if necessary and recalibrate.
8. Adaptive cruise control distance sensor misalignment (e.g. U0235) – Communication faults between the distance sensor and other modules can trigger this code. Check wiring connectors, ensure the sensor is aligned and perform a dynamic calibration.

Always refer to manufacturer service information for exact code definitions and procedures. Perform a post-repair scan, fix any underlying issues and recalibrate as required. Following the troubleshooting guidance in the AAAA ADAS Industry Code of Conduct will help you assess DTCs efficiently and get your customers back on the road with confidence. For more troubleshooting guides and solutions, join the Calibration Club community.