What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[George B]

I’m gun shy when it comes to trying to program that. I am afraid of bricking the module.

 

[Doubeleive]

I’m gun shy when it comes to trying to program that. I am afraid of bricking the module.

I would do the calibration on the rear unit, it's easy just get it all ready and then when you go to tell it to do the calibration just let it do it's thing and don't touch anything. no wiggling wires around anything just let it be. typical calibration is 10 minutes or less

 

[George B]

I would do the calibration on the rear unit, it's easy just get it all ready and then when you go to tell it to do the calibration just let it do it's thing and don't touch anything. no wiggling wires around anything just let it be. typical calibration is 10 minutes or less

You mean mode door calibration?
I was taking about reprogramming the rear seat controller and display.
I can try a calibration on all the mode actuators.

 

[Doubeleive]

You mean mode door calibration?
I was taking about reprogramming the rear seat controller and display.
I can try a calibration on all the mode actuators.

I mean the rear ac control head, there are no calibrations for the actuators

 

[George B]

I mean the rear ac control head, there are no calibrations for the actuators

Got it. I will have to get a subscription for that and will look into it. Currently doing exhaust work on the saturn.

 

[Rocket Man]

I’m gun shy when it comes to trying to program that. I am afraid of bricking the module.

That’s funny but not funny. I did brick my HVAC control module on my Silverado by trying to update the calibration on it. It stopped programming right in the middle of the operation. I called TDIS tech support and she walked me through a couple attempts to get it going again, then finally told me to disconnect the Tech II and the display went blank, no communication. We decided it was because of my Pioneer stereo. Any aftermarket electronics need to have their fuses pulled especially if they tap into the OBD like the Pioneer. She said during programming, the BCM attempts to “ wake up” all the modules and query them for their calibration #’s and if it detects a module but can’t talk to it, it just waits and waits forever. Lesson learned. I found a used one online but new ones are $400-$500.

 

[Just Fishing]

with the techII it's in the body menu/hvac, it's under the same menu list where it shows the after blow function and a couple other things, you just go into the option "display ambient temp" then hit save and back out

I found it under "module setup" after selecting auto hvac in the body menu.

tried to apply and it says something about having the wrong vehicle selected

Under the same area, I found something called "afterblow"
Me thinking "Great!" I enabled it.

Now i wait for pleasure
(I have no idea what it does)

 

[Rocket Man]

I found it under "module setup" after selecting auto hvac in the body menu.

tried to apply and it says something about having the wrong vehicle selected

Under the same area, I found something called "afterblow"
Me thinking "Great!" I enabled it.

Now i wait for pleasure
(I have no idea what it does)

It’s not that kind of afterblow , I found out.

 

[Doubeleive]

I found it under "module setup" after selecting auto hvac in the body menu.

tried to apply and it says something about having the wrong vehicle selected

Under the same area, I found something called "afterblow"
Me thinking "Great!" I enabled it.

Now i wait for pleasure
(I have no idea what it does)

after blow turns on the hvac fan on after the vehicle sits for 15 minutes to dissipate any moisture, probably don't have to worry about it out in the desert

 

[George B]

I even found after-blow in the saturn.