Need Help with electrical gremlins

[1badc4]

Hope I am posting in right spot, here is how issue started, on my A\C controls the fan speed switch only had 2 speeds of the 5 working. 4 & 5, so while removing cabin air filters I also cleaned the area they are in. with filter cover off the blower motor kicked on at high speed with key off and out of ignition, my buddy said blower speed problem was probably resister so while in there I decided to swap the one from my Suburban into Tahoe. one from Suburban known good. all speeds worked. after swapping I now had 3 speeds of the 5 working 3,4,5 and blower would still at random with key out of ignition just turn on by itself.. something that hasn't happened until I removed cabin filters. so I had to wrap up. the next evening I went to go to work and battery was dead. took another car to work and today I went out to hook up battery charger the blower kicked on. (without key in)well there's my dead battery issue. so what would make my blower( front ) just kick on by itself with no key in ignition? not sure if related or supposed to do this but my doors do not unlock after they have locked automatically after reaching 15mph until I partially remove key from ignition. my Suburban didn't do the 15mpg thing or unlock when key removed. both trucks 2001. Suburban is Z71 Tahoe is LS.

Also which relay is for the front hvac blower motor?

 

[1badc4]

Hope I am posting in right spot, here is how issue started, on my A\C controls the fan speed switch only had 2 speeds of the 5 working. 4 & 5, so while removing cabin air filters I also cleaned the area they are in. with filter cover off the blower motor kicked on at high speed with key off and out of ignition, my buddy said blower speed problem was probably resister so while in there I decided to swap the one from my Suburban into Tahoe. one from Suburban known good. all speeds worked. after swapping I now had 3 speeds of the 5 working 3,4,5 and blower would still at random with key out of ignition just turn on by itself.. something that hasn't happened until I removed cabin filters. so I had to wrap up. the next evening I went to go to work and battery was dead. took another car to work and today I went out to hook up battery charger the blower kicked on. (without key in)well there's my dead battery issue. so what would make my blower( front ) just kick on by itself with no key in ignition? not sure if related or supposed to do this but my doors do not unlock after they have locked automatically after reaching 15mph until I partially remove key from ignition. my Suburban didn't do the 15mpg thing or unlock when key removed. both trucks 2001. Suburban is Z71 Tahoe is LS.

Also which relay is for the front hvac blower motor?

after some youtubing It looks like on my year the relay is integrated into resister, beings both resisters from Tahoe and Suburban are in similar condition I ordered a new resister/relay from Amazon and I will go from there.

 

[Doubeleive]

not sure but the resistor you removed from the burb may not match up with the tahoe unless they are visually identical, if the systems are different it may not work correctly.
https://parts-catalog.acdelco.com/catalog/catalog_search.php

 

[1badc4]

not sure but the resistor you removed from the burb may not match up with the tahoe unless they are visually identical, if the systems are different it may not work correctly.
https://parts-catalog.acdelco.com/catalog/catalog_search.php

Yes they were identical. both P/N 15305077

 

[Doubeleive]

Yes they were identical. both P/N 15305077

well that link I included shows the resistor and a fan control module, maybe you need to swap the module in also?

 

[1badc4]

Installed new resistor/relay. All fixed.

 

[PG01]

As for your locks.... you can set that option by using the lock unlock key in key out..... iirc ... def in the owners manual

 

[doylee4693]

How the hell did you get that resister to line up? Whats the part number? I cant find mine anywhere