2000 Yukon XL Reprogramming Climate Control

[Chet70]

Hello Everyone!

I am new to this forum and am wanting to get some info on how to reset my climate control system in my truck. I had the battery disconnected for about 5 days while I replaced the intake gaskets and when I reconnected the battery, the system stays on defrost. Blower and auto works fine, just no adjustment on the floor/defrost/vents.

Any ideas?

Thanks!

 

[Doubeleive]

Hello Everyone!

I am new to this forum and am wanting to get some info on how to reset my climate control system in my truck. I had the battery disconnected for about 5 days while I replaced the intake gaskets and when I reconnected the battery, the system stays on defrost. Blower and auto works fine, just no adjustment on the floor/defrost/vents.

Any ideas?

Thanks!

disconnect battery again or pull hvac fuse, wait a few seconds, reconnect.
that should make it recalibrate

 

[Chet70]

disconnect battery again or pull hvac fuse, wait a few seconds, reconnect.
that should make it recalibrate

So I tried that a few times and it still didn’t work. Couldn’t hear anything happening under the dash either. Any other ideas?

 

[Doubeleive]

So I tried that a few times and it still didn’t work. Couldn’t hear anything happening under the dash either. Any other ideas?

leave the battery disconnected or fuse out for about 5 minutes and try again, that should work. If not then either the actuator is stuck or you need a tech2

 

[NELLY1947]

disconnect battery again or pull hvac fuse, wait a few seconds, reconnect.
that should make it recalibrate

Also I've been told to connect the positive first then rhe negative I've been told that way no arching.

 

[Doubeleive]

Also I've been told to connect the positive first then rhe negative I've been told that way no arching.

The trick is to do in one shot and not be wiggling it around so it's intermittently loosing connection while tightening, this can cause a bad handshake

 

[Chet70]

Can you explain what a tech2 is?

 

[Chet70]

leave the battery disconnected or fuse out for about 5 minutes and try again, that should work. If not then either the actuator is stuck or you need a tech2

What do you mean by a tech2?

 

[Fless]

What do you mean by a tech2?

The Case for the Tech-2

The Case for the Tech-2 By J. A. Burns, Port Saint Lucie, Florida I first learned the complete necessity of owning a scan tool designed for my given car at the dawn of the computerized automobile, owning and racing a stable of turbocharged Buick Regals. Even only being able to see and work...

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