How to Display Ford Trouble Codes

Written by richard ristow
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How to Display Ford Trouble Codes
The ABS braking system issues trouble codes, just like the OBD-II system. (Car Brake image by Joelyn Pullano from Fotolia.com)

To display trouble codes on a Ford vehicle, you will need the a code scanner, and as of 2010, not one code scanner fits all trouble codes. Fords made after 1996 operate under On-Board Diagnostic (OBD-II) coding, but the brakes, tire pressure monitoring and the other diagnostic systems cannot be read by and OBD-II reader. Those systems require their own dedicated code reading hardware. Yet, all diagnostic systems can be accessed the same way. Every Ford manufactured after 1996 has a data link connection beneath the dashboard, usually somewhere near the underside of the steering wheel.

Skill level:
Easy

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Things you need

  • Diagnostic code reader

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Instructions

  1. 1

    Open the Ford's driver's side door, and place the key in the ignition. Do not turn the electrical system on yet. Just leave the key there, for later use.

  2. 2

    Connect the diagnostic to the data link connection.

  3. 3

    Turn the key in the ignition so that the electrical system comes on. If your particular code reader has an "auto on" function, it will come to life as soon as it senses incoming data. If your scanner does not have this feature, you will have to turn the scanner on.

  4. 4

    Wait a few seconds. As soon as the scanner connects with the diagnostic system, the trouble code will be displayed on the scanner's screen.

Tips and warnings

  • If your Ford predates 1996, you may not have the benefit of using a scanner or OBD-II coding. The codes themselves are different and they cannot be "displayed." Under the hood of the Ford, you will find self-test "in" and "out" ports. If these are connected with a jumper wire, codes can be relayed by a series of flashing lights.

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