CrankKey.
Look up any P-code. Find the fix.

Look up any P-code. Find the fix. No adapter required — the pocket reference for OBD-II powertrain codes built for DIY drivers. Type the code your car threw, get a plain-English breakdown of the likely cause, the parts usually behind it, and a shop's honest quote — ranked by how often each fix actually works.

Preview of a handful of codes. The full CrankKey library covers the entire P0001–P3000 family.