Gary its the resistor that runs between the large positive and negative terminals of the solenoid. It is wrapped with a see-through plastic tube. The positive side of the solenoid is hooked to the positive side of the battery pack and the negative runs to the controller. I checked the old one (resistor) and peeled the plastic wrapper off. There is corrosion around the wires coming out and it seems to be crumbling like chalk on one end. If this is a fluke let me know because I don't want to end up having to deal with this problem again after dishing out money for tires and a lift kit.
By the way thank you for all your help up til now. This web site forum is a wealth of knowledge.
