Do you have 12V to the control switch. I would check this first, if you have power going in then check outgoing. Make sure you have a good ground.
If the switch is bad you should be able to get the PN off of it and find a replacement.
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Jim J
2002 Monaco Windsor 38 PKD Cummins ISC 350 8.3L
2005 Jeep Grand Cherokee w/5.7 Hemi
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