OBD2 Codes | Repair Guide

Look up OBD2 and DTC fault codes, possible causes, symptoms, and repair guidance in a fast offline automotive reference for English and Arabic.

OBD2 Codes | Repair Guide is a fast automotive reference for OBD2 and OBD-II diagnostic trouble codes (DTCs), check engine codes, and common vehicle fault codes.

Search by exact code or keyword to quickly understand what a trouble code means, review possible causes and symptoms, and explore suggested diagnostic checks and repair guidance.

Key features • Search OBD2 / OBD-II and DTC fault codes • Look up generic and manufacturer-specific codes • Browse P, B, C, and U code families • Explore codes by category and manufacturer • Review definitions, reference context, possible causes, and repair guidance • Save important codes to Favorites • Organize saved codes into collections • Review recently viewed codes in History • Use the local code database offline • English and Arabic interface support • Light and dark themes with reading preferences • Share useful code information • Optional lifetime Remove Ads purchase

Useful for automotive fault-code lookup

Use the app as a quick reference for check engine light codes, engine and transmission faults, sensor issues, emissions-related codes, electrical systems, body systems, chassis systems, and vehicle network communication codes.

If a scan tool or technician gives you a code such as P0420, P0300, or P0171, OBD2 Codes | Repair Guide helps you understand the code and identify useful areas to inspect next.

Works offline

The diagnostic code database is stored locally on your device, so code lookup remains available without an internet connection. No account or login is required for normal use.

Important

OBD2 Codes | Repair Guide is an informational diagnostic code reference. It does not connect to your vehicle, read live vehicle data, clear fault codes, or replace an OBD2 scanner or professional diagnostic equipment.

Code definitions, possible causes, symptoms, and suggested checks are reference information and may vary by vehicle make, model, year, and system. Always verify faults using appropriate diagnostic equipment and consult a qualified technician when needed.