Refine by vehicle (optional — sharpens the results & search links)
Type a code (like P0301 or P0730) and press Search to see what it means, the most common fix to start with, and what to check.
Pick the make and model for sharper results. Works on any device, even offline.
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Ask PAFO
A fast, simple car trouble-code helper — type a diagnostic code and get what it means, the most common fix to start with, and what to check, in plain English. Free, and it works offline on any phone, tablet, or computer.
What's inside:… common trouble codes — standard OBD-II (generic) codes in detail, plus common manufacturer-specific codes including BMW. Each one shows the meaning, the most common fix to start with, the likely causes, and what to check.
How accurate is it? Definitions are curated and reviewed against standard OBD-II references. Codes can still vary by make, model, and year, so treat this as a strong starting point and always confirm on the actual vehicle. For brand-specific codes that aren't in the list, the Search buttons take you straight to the details.
Ask PAFO is a helper, not a replacement for the vehicle service information or a proper diagnosis.