I drive a 2002 grand caravan sport, got it with 17,000mi. on it. The van did not come with a fob. How can I find out if it has keyless entry? I have a fob from another van, same year and model, can it be used with mine?

if it has keyholes in all the doors probably not. You can pull the top of the dash and look for the RKE module, just take off the plastic on the A pillars and pull the front piece of the dash out. It is a box type thing that pulgs into the existing wiring. It is in front of the driver.

Thanks for responding wireman2, the front doors and rear hatch have keyholes but the sliders do not have keyholes. Could a fob from another caravan sport work with this van?

if you have the rke and program them

search on ebay for them