How to Check Trouble Codes refers to the process of retrieving and interpreting diagnostic trouble codes (DTCs) stored in a vehicle’s electronic control unit (ECU). These codes provide valuable insights into potential issues within the vehicle’s systems, enabling timely repairs and maintenance.
Trouble codes play a crucial role in modern vehicle diagnostics. They help identify malfunctions, pinpoint faulty components, and guide repair strategies. By accessing and interpreting these codes, mechanics and vehicle owners can efficiently troubleshoot issues, reducing repair time and costs. Historically, trouble codes were retrieved using specialized diagnostic tools or by manually reading blink codes from the vehicle’s dashboard.