aaronspink Posted August 17, 2006 Report Share Posted August 17, 2006 hello, I just bought my first caddy at 1993 sedan devil and i love it! But, it has one problem. When i first got it the heater fan didnt work at all after pulling the fan and inspecting it we decided to check the fuses (duh) the AC fuse thats under the hood was compltely missing. I put in a spare and the fan immediatly kicked on...the problem is the car wasnt on. Now the fan will run constantly if the car is on or off and if the fan on the climate control is on or off. Any ideas? thanks, aaron Link to comment Share on other sites More sharing options...
epricedright Posted August 17, 2006 Report Share Posted August 17, 2006 Now you know why your fuse was missing...the dirty scoundrels! Link to comment Share on other sites More sharing options...
Ranger Posted August 17, 2006 Report Share Posted August 17, 2006 The internal control module is bad. R & R the fan. Link to comment Share on other sites More sharing options...
alwing17 Posted August 17, 2006 Report Share Posted August 17, 2006 Unplug the resistor/blower control module under the hood near the blower motor and see if it stops running...If it does...you need a new one. About $70-80 from GM. Link to comment Share on other sites More sharing options...
aaronspink Posted August 17, 2006 Author Report Share Posted August 17, 2006 Unplug the resistor/blower control module under the hood near the blower motor and see if it stops running...If it does...you need a new one. About $70-80 from GM. THANKS! i replaced the blower control module with a 20$ part from a junkyard and it works good as new...I coudlnt be happier thnx again guys... Link to comment Share on other sites More sharing options...
BodybyFisher Posted August 17, 2006 Report Share Posted August 17, 2006 Unplug the resistor/blower control module under the hood near the blower motor and see if it stops running...If it does...you need a new one. About $70-80 from GM. NICE AL! Stick with us! Good fix... Pre-1995 - DTC codes OBD1 >> 1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/ Cadillac History & Specifications Year by Year http://www.motorera.com/cadillac/index.htm Link to comment Share on other sites More sharing options...
Ranger Posted August 17, 2006 Report Share Posted August 17, 2006 The control module used to be internal. Guess they changed them. Sure wish they'd quit that. I can't keep up with it. Link to comment Share on other sites More sharing options...
Logan Posted August 18, 2006 Report Share Posted August 18, 2006 No, on that era of Cadillac. The blower module was external of the actual blower motor. Very common failure mode was a bad blower module. '94 saw the blower module go internal to to blower motor. Those have have their particular failure modes... Logan Diagnostic LLC www.airbagcrash.com www.ledfix.com www.ledfix.com/yukontaillightrepair.html www.ledfix.com/ledreplacements.html www.ledfix.com/j42385toolrental.html Link to comment Share on other sites More sharing options...
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