Ranked causes, real symptoms, honest cost ranges, and the exact part.
Save your vehicle once, then get parts that actually match it.
Nothing parked yet.
OBD1 was never standardized — pick a manufacturer below.
P1xxx and other extended codes aren't part of the universal SAE standard — each brand defines its own. This is a representative sample per brand, not exhaustive.
Every standard SAE generic code on file, plus notes on manufacturer-specific ranges. Click any row to look it up.
OBD Bay is a reference tool, not a replacement for a scan on your actual car.
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