I've tried disconnecting the battery for 1 min and running the car for 3 min 3 times and also disconnection the #36 fuse under the back driver side seat for 2 min and then turning the key without starting the truck and nothing works
Unfortunately, you have come across a common problem on these vehicle when the battery power is interrupted. One of your Temperature Control Actuators (or its associated door) has failed. Attached is a diagram of the HVAC unit and the location of the actuators 9With part numbers). Some of these actuators are difficult to get to without disassembling the dash. The Driver's side actuator can be accessed from under the dash.
SOURCE: AIR CONDITIONER ONLY BLOWING COLD ON ONE SIDE AFTER DISCONNECTING BATTERY
Turn your AC off. Turn the car off Crank the car turn ac on drivers side to 60 passenger side to 90 press auto wait 1 minute turn AC off (very important) turn car off turn car back on switch driver's side 90 passenger 60 press auto wait one minute turn AC off( very important) turn car off turn car on AC 70 both sides press auto your ac should be blowing cold If not, you have an expensive problem
SOURCE: 2005 Yukon Denalli - Blow cold air out the drivers side
the passenger side electronic controller is sensing the passenger side temperature is cooler than it really is, which causes the controller to increase the hot water flow to warm up the passenger area...any time you replace a battery or loose your charge, the HVAC module will need to be reset...Try this...
Remove your hvac fuse for 10 sec - reinstall fuse.
Start engine "DO NOT TOUCH ANYTHING FOR 3 MINUTES"
Recalibration of module will accure when power is lost (fuse pulled, battery changed or died)
If hvac reset did not work you have a trouble code - reset BCM
There are two ways to reset your body control module
Go to the GENERAL
Remove BOTH battery cables (for the sake of CAUTION remove air bag fuse and wait 5 MINUTES)
Hold both cables together for 1 minute - drains KAM (keep alive memory).
Put everything back together
Start the engine "DO NOT TOUCH ANYTHING FOR 3 MINUTES"
If you have no broken parts - system not default (normal operation)
If that works it just saved you 600 dollars...dealer costs to repair.
Good Luck...please rate me a fixya.
SOURCE: Changed batteries and climate control not working properly
The actuator has gone bad. They can be programed, and reset, but usaly they are bad, and that will only patch the problem for a while.
SOURCE: 2005 gmc sierra 2500hd heated seat turns off
you have a couple of problems first of all your drivers sd=ide heated heat pad is probably faulty, for your heating problem you may have to get the hvac doors recalibrated.
SOURCE: My 2004 GMC sierra blows hot air out the drivers
If you've replaced the actuators and they are working.
One of the blend doors may be broken inside the heater box. To repair or replace the broken door you
have to remove the heater box. This is not a small job. The book gives 6-7 hours for the job. There is a
cheat that I've heard good things about. I guess it can
be done in a fraction of the time. You can find out
about it at heatertreater.net I have not used it myself
but I know somone who has. And it worked well for
him. Hope this helps.
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