GM HVAC programming

[Trindaddy]

Hello again fellas. First of all, the Toolbox 2 program appears to have changed. It is looking for a compatable device before the program loads now. Of coarse i am using the Pass Thru Pro 1 which is an Actia and not supported. Now i cant even use the program for info and guidance to websites, procedures, etc. Does anyone know a way around this? Has this new program procedure been seen/used by any of you yet? Looks like they made the program only work with Drew-Tech stuff.
Second, does anyone know if we can flash update an HVAC module in GMs using J2534 interface? Mine is a 2005 Silverado w/ auto climate control, VIN:
2GCEK19B751194144. I'm against the wall and need your help asap. Thanks guys.....again.

Neil

[Orevin]

Can't help you with the Toolbox stuff, but if you want to know if a module on a GM can be reflashed and if there's an update available, punch in the VIN here:

http://tis2web.service.gm.com/tis2web

[Trindaddy]

Hey Kai, thanks a lot for the help. I realize our recent past was a little rocky. I'm glad we're past that. Anyway, any idea what to do at this screen? I only want to try to update controller for recirc door issues as listed in GM service bulletin #06-01-38-003.

http://tis2web.service.gm.com/tis2web/?target=AQL2S0C92S0QB2S0&target.method=onSubmit&ABL2S0Z82S0NG2S0=1&bm=_top#_top

[Trindaddy]

Sorry Kai, that link didn't work. How the hell do you capture the screen and post it like you did?
I'm stuck at the screen where the choices are airflow, HVAC, and something else i forgot.

[Orevin]

Hey Kai, thanks a lot for the help. I realize our recent past was a little rocky.

No harm done, let's move on!

Sorry Kai, that link didn't work. How the hell do you capture the screen and post it like you did?

Will answer that later, ok?

I'm stuck at the screen where the choices are airflow, HVAC, and something else i forgot.

Click on Airflow:

4-14-2011 9-45-22 PM.jpg


Then check one of the radio buttons. There are two different calibrations available, depending on the blower motor controller installed:

4-14-2011 9-45-40 PM.jpg

4-14-2011 9-46-02 PM.jpg

[Trindaddy]

Sorry the time delay, i just got home from work. I always feel terrible asking so many questions after seeing the work you have to go thru. Thank you very much. Someday soon i'll start a post about how to post like you do (little red arrows!!!).
How did you know to choose airflow, because it was highlighted red? By blower controller you mean the "blower resistor"? Are we able to do this update with J2534 interface? Anything i should do in preparation (remove any modules from BUS etc). As you may remember, this will only be my 2nd flash attempt. The first being the infamous Mustang SJB
Cant thank you enough

Neil

[Orevin]

I you haven't done so, download and install Sun Java: http://www.java.com/en/download/index.jsp

Purchase a J2534 subscription here:

https://www.acdelcotds.com/acdelco/action/subscribehome

4-15-2011 6-17-20 AM.jpg

If you don't have an account yet, you will have to create one.


You might need access to the RPOs to select the correct options later, check if they are accessible. Disable any security software like firewalls and antivirus. If you use a laptop, make sure it will not shut down during the process. Hook up a suitable power supply to the vehicles battery. Connect your J2534 box and turn the key on. If possible, turn off the DRL and any other electrical loads.

Login to TIS2Web:

https://www.acdelcotds.com/acdelco/action/login?subscribeTo=tis-all

Click on Tis2Web - All Access

4-15-2011 6-24-12 AM.jpg


Click through the next information screens until you arrive here, click on Service Programming System:

4-15-2011 6-25-30 AM.jpg


You will be asked to install some Java applets. When done, the fun can begin. I don't have any screenshots to walk you through the reflash process. Here is a Youtube video that explains the steps necessary from here, on a PCM reflash.

Follow all instructions of the software. If it asks to remove fuses or disconnect modules before the reflash, do so. At the end of the process you will be told if there are additional tasks are necessary (clear DTCs, perform relearns or such). Alldata/Shopkey have instructions for possible relearn procedures.

This should be a pretty easy one. Take notes and screenshots, to have a guide for the next reflash.

Let us know how it turned out!

[Trindaddy]

THANK YOU!!! I'm goin in now. I have the rest of the day to complete! I'll update you tonight. *nervous*

Neil

[Trindaddy]

Sorry i didn't get back to you last night, fell asleep promptly after dinner- tough week!
Anyway, I am very excited and relieved to tell you that not only did the flashing process work perfectly, it did fix the recirc door problem on this Chevy! As you know, this was a special job for me. It was the first time (except for cat effeciency issues that i have never flashed for) that i had a vehicle with a specific problem where the repair was only to reflash a module. That in itself is a tough thing to verify unless one is confident enough to go ahead and use the SPS program to update a module. Also, it was the first successful reflash for me, using all the equipment i have bought (most recently the Midtronics PCS-550) to make it happen. I have owned the Pass Thru Pro 1 for 5 years now and never used it! If you, Kai, and others remember the satisfaction of your "first time", i know you understand how liberated I feel now. Though i am not Flash Gordon yet, i feel like I'm finally part of the "high tech club" of fixing cars. It is gratifying. I am grateful for your step-by-step help Kai. It would have been very difficult to proceed without it!
In closing, i am again left with a few questions. After helping sooo much, i hate to ask, but could you clarify a few things for me and others who may read this? Here goes:
During the SPS process.......
-What is programming type VCI? (i chose normal and it worked fine)
-Why are there 3 different areas of choices within the HVAC system i.e- Airflow (which i chose), HVAC, and operating system? There is only 1 module controlling the HVAC system. What is all this stuff? What are all these cal and part numbers referring to? How does one know what to choose (without the help from someone like yourself)?
-There is no desktop icon (like the Ford FMP program) left behind after programming. The next time i wish to use the GM SPS program where do you launch it from?

I owe you Kai, Thanks...........Neil

[gmworldclass]

The VCI is set up for the specails times when GM technical assistance will give you a number. This number is for using through VCI.

[greasybob]

To start another session, just go back to the ACDELCOTDS home page where you logged in last time and follow the same steps. Glad it worked out for you.

[Orevin]

Neil,

Sorry i didn't get back to you last night, fell asleep promptly after dinner- tough week!
Anyway, I am very excited and relieved to tell you that not only did the flashing process work perfectly, it did fix the recirc door problem on this Chevy! As you know, this was a special job for me. It was the first time (except for cat effeciency issues that i have never flashed for) that i had a vehicle with a specific problem where the repair was only to reflash a module.

I'm glad your first reflash was a success! Sometimes it is not instantly obvious if the new software fixed a problem. The most rewarding updates fix issues that can be felt, seen or heard. Did a Jeep recently with a minute transmission shift concern, could hardly be felt, but was there. A reflash was available, installed and the trans shifted smoothly on the next test drive. Awesome!

That in itself is a tough thing to verify unless one is confident enough to go ahead and use the SPS program to update a module. Also, it was the first successful reflash for me, using all the equipment i have bought (most recently the Midtronics PCS-550) to make it happen. I have owned the Pass Thru Pro 1 for 5 years now and never used it! If you, Kai, and others remember the satisfaction of your "first time", i know you understand how liberated I feel now. Though i am not Flash Gordon yet, i feel like I'm finally part of the "high tech club" of fixing cars. It is gratifying. I am grateful for your step-by-step help Kai. It would have been very difficult to proceed without it!
In closing, i am again left with a few questions. After helping sooo much, i hate to ask, but could you clarify a few things for me and others who may read this? Here goes:
During the SPS process.......
-What is programming type VCI? (i chose normal and it worked fine)

See gmworldclass' response.

-Why are there 3 different areas of choices within the HVAC system i.e- Airflow (which i chose), HVAC, and operating system? There is only 1 module controlling the HVAC system. What is all this stuff? What are all these cal and part numbers referring to? How does one know what to choose (without the help from someone like yourself)?

I'm no

Flash Gordon

either, nor a GM specialist. I speculate these are sub-systems within the same controller with separate, but interacting, software routines. You will see this on other GM modules as well. Here is an example from an 05 Trailblazer:

tis.jpg

If a reflash is performed, all (sub)-systems will be updated. Always click through all systems to check what problems can be addressed with a reflash. GM doesn't always publish a TSB if a new software is available.

-There is no desktop icon (like the Ford FMP program) left behind after programming. The next time i wish to use the GM SPS program where do you launch it from?

Greasybob answered this already.

I owe you Kai, Thanks...........Neil

Nah... it's a give and take here. I'm glad we buried the hatchet