P04EF

P04EF

DTC P04EF, sometimes indicated as P04EF00 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the auxiliary emissions system causing p04ef.


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    Bulletins

    Bulletins are notices put out by manufacturers in conjunction with the NHTSA to notify the public of manufacturing issues or changes.

    • A0119182055592_1 - ENGINE AND ENGINE COOLING
      AUDI: This bulletin contains repair instructions for dtcs P045600, and/or P044200, P04EF00, P04ED00.
    • TSB 19-2207 - ENGINE AND ENGINE COOLING
      LINCOLN: Some 2013-2017 c-max/fusion/mkz hybrid/energi vehicles may exhibit an illuminated malfunction indicator lamp (mil) with diagnostic trouble codes (dtcs) P1450, P0456, P0457, P04EE and/or P04EF. This may be due to the sealing capability of th
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