Does anyone have the list of BMW OBD2 codes corresponding to the associated faults? My check engine indicator and airbag indicator stays on all the time. Plugged in the $150.00 Actron code reader from Autozone and got two codes: P 1421 and P 1423. Will call a couple of dealers next, but if anyone has a list,it would be greatly appreciated. Used the reader to turn off the indicators. Maybe they will stay off, because the engine is really running smooth and strong.