1994 Jeep Grand Cherokee

Electrical problem
1994 Jeep Grand Cherokee 6 cyl All Wheel Drive Automatic

I have a 94 Jeep grand cherokee. The front wipers work, but only work for 1/10th of a second on delay (they work fine on " normal" ) and they won't return " home" I've replaced the wiper motor and the switch on the steering wheel, I have checked the fuse and replaced the module. The module keeps burning out, after doing some searching I've found that the modules have a habit of doing that so as they all suggested I put some solder in the right spot on the circuit board. It blew out again. I've followed the wiring the best I can and can't seem to find any issues, I'm just about at my wits end. Any suggestions on the next step?
October 27, 2010.

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