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Mustang Computer Code Identification (1987-2011)

Correct Format for Mustang Computer Codes by Year
It is important to correctly identify your Mustang’s computer code. There are literally hundreds of codes and it would be impossible and potentially hazardous to your motor to attempt to guess your code. Included are some examples of codes that you might find during these years to help you recognize your car's code.
  • 87-93:
    Usually 2 Letters and 1 Number
    Example Formats: A3M, A9L, A9P

  • 94-95:
    Usually 2 Letters and 2 Numbers
    Example Formats: H4M3, T4M0, U4P0

  • 96-11:
    Usually 3 letters and 1 Number
    Example Formats: XSH1, CDC3, MDE2

Where to Locate the Mustang Computer Code
  • 87-04:
    The Mustang computer code on 87-04 Mustangs should be on the passenger side door jam on a rectangular white sticker. Sometimes the sticker comes off, so you will need to look under the passenger side kick panel on the actual computer to get the Mustang computer code.
    1993 Mustang GT Computer Location with Kick Panel Removed 1993 Mustang GT With Computer Code A3M
    (Click to Enlarge Images)
  • 2005-2009:
    The computer code on 2005-2009 Mustangs is under the hood on the passenger side located on a silver rectangular box.
    2005 Mustang GT Computer Location 2005 Mustang GT With Computer Code CDC3
    (Click to Enlarge Images)
  • 2010-2011:
    The computer code on 2010-2011 Mustangs is under the hood on the passenger side located next to the Fuse Box on a silver metal bracket.
    2010 Mustang GT Computer Location 2010 Mustang GT With Computer Code EEU7
    (Click to Enlarge Images)
Knowing your Mustang Computer Code is important for tuning.
To learn more about custom Tuning see the following links.
Mustang Computer Links