Mustang Computer Code Identification Guide

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A simple guide to help you identify and locate your Mustang's computer code.
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Ford Mustang computer code identifier. A guide on where to locate your 1979-2014 Mustang's computer identification code.

Mustang Computer Code Identification (1987-2014)

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.

  • 1987-1993

    Usually 2 Letters and 1 Number

    Example Formats: A3M, A9L, A9P

  • 1994-1995

    Usually 2 Letters and 2 Numbers

    Example Formats: H4M3, T4M0, U4PO

  • 1996-2014

    Usually 3 Letters and 1 Number

    Example Formats: XSH1, CDC3, MDE2

Where to Locate the Mustang Computer Code

1987-2004 Mustangs

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.

  • Location of Mustang Computer Code
  • Exact Location of Mustang Computer Code

2005-2009 Mustangs

The computer code on 2005-2009 Mustangs is under the hood on the passenger side located on a silver rectangular box.

  • 2005 Mustang Computer Code Location
  • Exact 05-09 Mustang Computer Code Location

2010-2014 Mustangs

The computer code on 2010-2013 Mustangs is under the hood on the passenger side located next to the Fuse Box on a silver metal bracket.

  • Location of 10-13 Computer Code
  • Exact Location of 10-13 Computer Code

Knowing your Mustang Computer Code is important for tuning. To learn more about custom tuning see the following links.

Mustang Tuners
Mustang Tuner Differences

FItment includes:   •   1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, LX, GT, SVO, Cobra, V6, Mach 1, Bullitt, GT500, Boss Mustangs

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