davidhaberstroh123 wrote: ↑04 Apr 2018, 13:14 I understand that but the garage all ready fixed everything. The modules need to be updated and I am trying to figure out how to do it without paying Volvo.
Okay, I'm going to make several assumptions based on limited information to try and help you out.
Your garage can't determine what keeps setting the code(s) and turning on your check engine light. The garage tech believes there's nothing else wrong with the car so a module needs to be replaced. Assuming it's the EngineControlModule that needs to be replaced it would need to be a new Volvo part and it would have to be programmed with your car's VIN (I'm assuming this is what is meant by re-learn). A new ECM is ~$1100 plus programming and installation so it's very expensive.
It's possible but not probable the ECM needs to be replaced. Typically ECM electronics are very reliable and why I say it's not likely the ECM needs replacement but still possible.
To help you, the DTCode(s) being set and stored need to be known, the codes that have been erased multiple times to reset the check engine light. Your garage needs to provide you with this information and exactly why they think there's nothing left wrong with the car based on what the codes are referring to. With the codes and what's been done to the car maybe myself or others can help you out.
It's very possible the underlying problem is not the ECM and you'll be saved the large expense of replacing this part.
Assuming worse case and it is the ECM that's the problem there are other options such as ECM repair services. You send them your ECM, they repair it, send it back and you (or your garage) plug it back in. Still costly but much cheaper than a new part and no programming (re-learn) needed.
example of ecm repair service
http://www.volvoecm.com/s80-ecm.html