Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
Hello I will help you with your question,
Normally the problem is in the wiring or the power transistor mounted on top of the blower case under the hood on the passenger side. You need to remove the fuse racks enough to get to the case.
I will see if I can find you a diagram of the fuse racks for the blower fuse
Fuse link "F" powers the blower through the power module as shown here >click<
Best tool here is your eyes looking for burning and melting of the connections and a voltmeter to see if power is getting the power module.
Let me know what I can do to help