I purchased a PCM C5 diagnostics program from a company calle B&B electronics.
I called them first and they told me the program worked very well and no complaints.
They make a DOS and Windows version.
Well in short I attempted to use their prduct on three different laptops and 9 out of ten times it fails to link to the cars PCM ;-(((
The user manual sucks and so does the functions when it does work.
They have a forum on their website for users of this product and I see the same complaints from 3 months ago, with no replies back from the vendor !
For $300 it is not a very good diag program when your spending most of your time doing diags to find out why the diag tool is not working !
The DOS cersion is not much better, it tends to lock up the P/C after a few minutes of use.
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Team ZR-1
Teamzr1.com