(edit) Post 11 has the update to this...

I've finally gotten back to working on my car again after several weeks of waiting for stuff to arrive and time to allow. I've purchased a Tech2 and I've got that working and connected to the car. The car is a 98 Vert, used to be Auto now M6. It has a P0601 error on the PCM which I suspect came from an error while programming with HPTuners, though I have heard of this error coming up spontaneously as well.

I need to reprogram my PCM, and if that doesn't work, get a new PCM and program that. But either way, I need to be able to get the Cal info from GM and send it to the PCM via the Tech2.

I also need to do a TAC module relearn, or figure out what is wrong with the communications on that (if anything at all).

I've gone to the AC Delco Tech site
I then go to the link on the right Look up Vehicle Calibrations Now (No Charge) and try to look up a PCM program for my vehicle.

The VIN is 1G1YY32G9W5115000 and the Part# they then give me is 9355211. It keeps telling me that part number is invalid. If I just enter the VIN it gives me a page of info on the Part#s and Cal IDs that looks like this:




I have tried all 4 of the numbers on that page and it says all of them are invalid.





I am ok with paying the fee for the 2 days to get started on reprogramming my PCM. What I do not want to do is pay that and find out I need to get something else that needs 3 days shipping.

Any help would be appreciated. Why is it telling me the number it gives me on the previous page, is invalid?

Do I need any other cables or tools to do this programming? Can I do it while the PCM is in the car and go through the OBD2 connector?

 

I have a relative that works at the local Chevy dealer. I was there when they reprogrammed the PCM on my 2001. They connected with the Tech 2 using the candi module. It was then connected to GM Global connect via the internet and then was reprogrammed that way.

I will go down tomorrow and see what the process is step by step and also if the programming is accessible to the average person.

I will post my findings for you tomorrow evening. My PCM was installed in the car when it was reprogrammed also.

 

Thanks.

 

For what it's worth, I had to get a new PCM for my sisters trailblazer, which I bought from NAPA (GM 560.00///NAPA 139.00) installed it in the trailblazer and it would not start(it ran before for a few seconds and would die) take the PCM back to the NAPA and another guy waits on me and said the PCM needs to be programmed with the vehicle VIN ?? They took in the back and came back 20 minutes later and said your all set. Put in back in the SUV and it started right up, but then had to do a crank sensor relearn !!!! So how is that for a bunch of worthless info ???

 

If I could get a PCM for this Vette for anywhere near that, I'd simply go buy one.

 

Went to the dealership this afternoon. They use TIS2web to hookup to GM. They have a user name/password that they log in with.

I asked why you could be getting the invalid part number and they could not definitely give me a answer.

The only thing they could think of was if the PCM was replaced in the system with a newer part number then that could be the reason for the invalid number.

They did also tell me that they from time to time have to get Ford or Dodge Ram etc. and they buy limited access to their programming. It seems that the limited access does not always work out. Just like your situation with invalid part number.

From what I gathered It is not as easy to get this info as it sounds.

I just tried the same thing as you and got exactly the same result using my 2001 VIN number.

I am going to take this info with me and see if we can look up your CVN at the dealership tomorrow and i will let you know tomorrow.

 

Thanks Zach,

I think I've found at least one issue, though I'm not sure yet. I spoke to the people at Delco today. On the phone, they verified that the part numbers I was entering were invalid. The guy I spoke with said they had to be 8 digits. Ok I thought, that's interesting. Should have dawned on me right there but it didn't. Not until I hooked up the Tech2 and pulled the info from the car did I see that part number starts with a Zero. AH! Oh, so I went back to the page and still, it fails to find the part even if I enter the leading zero. So I assume then the website trims leading zeros both when it displays and in the form data when you ask for the part. Sorta silly they are doing an integer number for the item, but that's what it appears. Best I can tell anyway.

Unfortunately, it appears the Tis2Web won't allow me to re-flash with the same OS that's currently on the PCM. This definitely sucks. I don't know yet how to force that, but even if I could just get it to reflash, I'd think that might solve this code issue.

I see no way in HPTuners to modify that CalID before it is sent to the controller. So that doesn't work either. I've resent the original tune I took off the car multiple times, no joy.

I am wondering if that missing leading 0 isn't what's causing the checksum error on the uploaded cal.

 

I was able to to get to the dealership and got some different info. We went into the GM system and got some different numbers:




The numbers came up different in their system. Hope this helps

 

Thanks for trying but nope, those are the same numbers I had above.

 

I was at the dealership again today and we tried to get a number for you. We got the same results as i posted earlier.

We got the best tech at the dealership and went through the process again and got the same results.

He said without the car hooked to the tech 2 at the dealership, we would probably get the same result and would have to be called into GM. He said many times he has had to call GM to get right calibration numbers. They have this available and we do not.

Sorry we could not get the info.

 

Ok, I've got an update on how this went...

Had to buy a new PCM, also got a TAC module but I'm not sure I really needed that. I'll probably tear the PCM apart and see if there's anything serviceable inside cause I really don't think anything went wrong other than a flash problem.

I"ll just steal some of this from a PM I sent to AKAPounder.

You start by going to the AC Delco TDS site. Sign up for a login. I found this is best if you get your login a while before you attempt to call for tech support because they won't be able to find you in the system if you make the account and then just call them 5 min later.

Once you have an account and get signed in, you can then purchase any services you want. Just go to the "Service and Programming Information" link and either buy service there, or once you've bought active service, links will appear that allow you to use that service.

I bought the 2 day service programming. I have always been told online that you need to pay also for the VIN you want to do, but that is not true. I paid the $55 and that was it, I was done.

Tech support is free. Even BEFORE you buy. They'll talk with you and help you to get started. I called in twice before I bought my subscription and asked questions, telling them up front that I was doing so just so I would not pay the fee and then find out I didn't have what I needed.

Before you call in, you need Java 7.67 on your system. You have to go to the java archives to get that. Other versions (so they say) won't work.

Now, you don't need TIS2000 any more. Once you pay the fee, you can just use your internet browser and do the programming with the serial connection right to the Tech2. Once they fixed all the problems I had, it was straightforward! This was done using the Delco TDS site which is linked right from the purchase/service page. Those links don't exist till you are logged in with your account and have a paid subscription that is active.

I did the programming several ways, and did it on two different PCMs. I tried to do my original, it still failed with the P0603 so I installed the new PCM, changed it's VIN# to my cars VIN with the utility on the TDS website. Then reprogrammed that using the "Replace PCM and Reprogram" functions. I did both a standalone and a pass through, both worked fine

All in all it wasn't that bad, but I would have had my subscription run out before I had the parts in hand if I had just bought it and tried my old PCM. So it paid to not jump in too quickly. I had the spare ready to install beforehand.

Tech support is available M-F 8am till 10PM if I recall correctly. Also Saturday 8am - 8pm. (covers west coast dealers who are open till 5). The number is on the website under help.

I had to do a BCM relearn, CKP relearn, and will need to use HPTuners to switch the car to a manual transmission tomorrow. It's throwing a lot of automatic transmission codes which is to be expected with no automatic tranny in there.

I drove the car around the block tonight. Just a test to see if it would move on it's own.

Thanks again to AKAPounder for all the help on the Tech2. I did the brake bleed with it tonight and the brakes feel like never before. Need to do my truck tomorrow.

Oh, and as to the part numbers. That's only a problem on the TIS2Web site. Once you go to the AC Delco TDS site, you put in the VIN and pow, up comes your tune info for programming. All the part numbers are right, and it sends it to the Tech2 slick as can be. Bout a minute and a half to reprogram the car.

 

 

Glad you got it worked out.

 

[font][font]ola eu sou do brasil estou colocando uma pcm e40 em uma corveta c5 ano 98 gostaria de uma ajuda para poder trabalhar ar condicionado, controle tracao,abs e cluster alguem aqui ja fez essa modificacao?[/font][/font]