I have a 96 Cadillac Sedan Deville and the heater blower wont run. The motor is ok as is the relay, also checked the fuse. Thought maybe its the heater resistor switch but I cant seem to find it. Any thoughts on this? Thanks!!

The car probably has ECC and has a blower module instead of the resistor. It should be located on the housing on the passenger side.

Is the blower module under the dash, if so, where, approximately is it? I dont see anything under the hood that could be it. Thanks again.

Sorry, I wasn't too clear on that. Under the dash on the passenger side. Should be near the blower motor. Pulling the glove box may make it easier to access.

Thanks for the info. If the module is bad will it keep the fan from running on any speed or will it just loose one speed? My doesnt run at all. Ive heard that this is a problem on lots of Caddys but never have heard of a solution. Thanks again!!