Door Module : A door module is used on some vehicles to control door mirrors, driver memory, power windows and power locks. A door module may also contain a computer to communicate with the other body computers of the vehicle. Door module failures may occur causing power windows not to work, power lock problems, or other door modules not to work properly. Skill, computer diagnostic equipment and a good auto mechanic are needed to diagnose and repair door module problems accurately. If you have a door module problem, contact Guy’s Automotive today and get your car, truck, van or suv repaired today.