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OBD-II · Engine and powertrain (P)

P1639

Manufacturer-specific code

Meaning by manufacturer

This code means different things on different makes. Find yours below.

  • Ford

    Vehicle ID block corrupted or not programmed

    The engine computer is missing the vehicle-specific configuration it needs, usually after it was replaced or a reprogramming failed.

    Likely causes, most likely first

    1. 01Engine computer replaced without programming
    2. 02Interrupted or failed software update
    3. 03Internal memory fault in the engine computer

    Severity: Caution: get it checked soon · Workshop job