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Discussion Starter #1
Any Ideas? I turned car off and blower motor kept going I unplugged it from under the hood, I have the digital controls and I dont think buttons getting stuck the display changes when I depress a button but im not sure.:crazy:
 

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Blower control module kaput
Is a solid state relay controlled by the HVAC head unit.
Has power direct from batt to blower motor so when faulty can run blower any / all the time.

Try working on your car in the garage @ 12.00 at night and have the blower randomly start up on it's own :WTF

Also check the fuse in the weatherpak hosing on the blower motor; if this is blown can cause motor to run also
"actual blower speed (voltage) is returned to the Programmer on a protected circuit with a 5 amp fuse
If the fuse opens, the default is high blower and it will often run with the ignition off"
 

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Discussion Starter #3
Yes that would freak me out the motor popping on at midnight hehe, thanks again will check that stuff out in the morning.
 

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will check that stuff out in the morning.
BCM is expensive new ($160 ) but the same module was used on all GM cars ( Caddy's ) with climate control for many years.

BCM location

 
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