X2 on what 62maxwgn said. I just had a similar problem with my sons 93 Dakota. Opened up the wiring harness from the relay box, found the red/red-white wires that were 3 into one, cleaned them, re-soldered and sealed it up. Didnt fix the problem. moved forward in the harness, and found a ground that was basically sheet metal screwed to the inner fender (between the battery and the relay box. Cleaned the ground, tightened it up. problems solved.

Laine.