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How to Reset the Computer in a 2003 Ford F 150

You can reset the computer on your 03 Ford F-150 right from your home garage or driveway, saving yourself time and money. The F-150 is equipped with an on-board diagnostics computer that receives trouble codes from sensors positioned throughout the vehicle. This computer monitors all functions of the vehicle and will alert you to any malfunctions via warning lights on the instrument panel. It will also keep track of and alert you to the servicing needs of your Ford. Once you have had the vehicle serviced or repaired, you should reset the computer to shut off the warning and service lights.

Instructions

1

Pop open the hood of the vehicle and prop it up with the rod. Locate the battery in the engine compartment.

2

Find the negative battery terminal and the clamp with a nut attached to it. Loosen the nut with a wrench and remove the clamp from the negative battery terminal. Make sure it doesnt touch anything, especially the positive battery terminal.

3

Wait 20 minutes to allow the electricity to drain out of the OBD computer and to allow it to reset itself.

4

Reconnect the negative battery clamp and tighten the nut with the wrench. Lower the hood.

5

Use the key to start the engine. Verify that all service and warning lights have shut off.