J2534

I'm considering purchasing a J2534 Pass-thru and I'm looking for advice. I see a ton of GM's, Fords and Chryslers.

Those are my main three manufacturers, as well. I use a Cardaq-M. I have had very little problems with the tool. (I had some problems, recently, with Ford's FJDS v. 114, as did MANY other people.) Any problems I have had with the tool, Drew Technologies Tech support quickly solved. Their tech support is top-notch, in my opinion.

I chose the Cardaq-M because it is modular, and can be upgraded as new technology and protocol comes out. But, I think it has, already, been up-staged by the Cardaq Plus 3. drewtech.com/products/cardaqplus3.html

I can't speak for any other J-boxes, because I haven't used any others.

Something to consider when purchasing is manufacturer VALIDATION.
While all J-boxes should work with all Manufacturers, Manufacturers WILL NOT give tech support if you are using a J-box that they have not validated. If you have a problem, you are on your own. I learned that the hard way.

We use the Autel J2534 pass thru in the shop on occasion and it has never let us down. While some may look down upon this tool as being unapproved, I would like to point out that Nissan has the Autel J2534 listed as a validated tool they recognize.