Cadillac Repair Questions? Ask a Mechanic for Answers ASAP
This vehicle does not have a Blower Motor Resistor. Due to the "auto" feature of the system, the job of the resistor is done by a Blower Motor Control Processor. It's similar in function to the resistor, just "smarter" to accommodate the auto feature. The processor is mounted to the left/side of the blower housing (for an image location view, click here: https://www.dropbox.com/s/xd6d6b48yogzdr2/cad-blowmod.jpg?dl=0). Unfortunately, there is no test procedure provided for this item. If you apply 12v to the blower motor and it responds, the problem will lie in the processor. They are fairly common fail items on these vehicles.If you found this answer helpful, please help me by leaving a rating using the "stars" at the top of the page or click 'accept'.Rating or accepting my answer does not cost you extra. It allows me to be credited for this Q&A. If you cannot rate or do not see where to rate, please let me know!