The MemoScan U281 CAN VW/AUDI Code Reader is a powerful diagnostic tool designed for Volkswagen and Audi vehicles. This guide explains how to use this car diagnostic tool to read and erase trouble codes. Understanding how to use this scanner can help car owners diagnose issues, potentially saving time and money on repairs.
Understanding the Memo Scanner
The MemoScan U281 features a simple interface:
- LCD Display: A backlit 2-line display shows test results and diagnostic trouble codes (DTCs).
- Read Button: This button retrieves and scrolls through stored DTCs from the vehicle’s systems, including engine, ABS, airbags, and automatic transmission.
- Erase Button: Use this button to clear DTCs and “Freeze Frame” data from the vehicle’s memory, effectively turning off the check engine light (MIL).
- OBD II Connector: This connector plugs directly into the vehicle’s OBD II port, enabling communication with the car’s onboard computer.
Using the Memo Scanner: A Step-by-Step Guide
Using the MemoScan U281 is straightforward:
- Locate the OBD II Port: Typically found under the dashboard on the driver’s side, the OBD II port is a standardized 16-pin connector.
- Connect the Scanner: Plug the MemoScan U281’s OBD II connector into the vehicle’s OBD II port. The scanner is powered by the vehicle, so no batteries are required.
- Turn the Ignition On: Turn the ignition key to the “on” position, but do not start the engine. This powers up the scanner and allows it to communicate with the vehicle’s computer.
- Read Trouble Codes: Press the “Read” button on the scanner. The LCD display will show any stored DTCs. Use the “Read” button again to scroll through multiple codes. Each code represents a specific problem area within the vehicle’s systems.
- Interpreting the Codes: Refer to a reliable source, such as a vehicle repair manual or an online DTC database, to understand the meaning of each code. This information will help pinpoint the cause of the issue.
- Erase Trouble Codes: After addressing the identified problem, press the “Erase” button to clear the DTCs and turn off the check engine light.
Vehicle Compatibility
The MemoScan U281 is compatible with most Volkswagen and Audi models sold worldwide from 1990 or newer. It works with vehicles equipped with a standard 16-pin OBD II connector. However, for older VW/Audi models with a 2×2 Data Link Connector, compatibility depends on the wiring configuration. Four wires connected to the pins are required for compatibility. A separate 2×2 cabling adapter (not included) is needed for vehicles with only three wires.
Conclusion
The MemoScan U281 offers a simple and effective way to diagnose car problems in Volkswagen and Audi vehicles. By following these steps, car owners can quickly read and erase trouble codes, gaining valuable insights into their vehicle’s health. This user-friendly diagnostic tool empowers DIYers and car enthusiasts to troubleshoot issues and potentially save on repair costs. Remember to always consult a reliable source for accurate DTC interpretations.
