Here comes the Topdon Topscan Pro unbiased review on a 2005 Nissan Altima:

“By far the best bang for your buck!!!! If you need a great scan tool that can do pretty much anything, then you’ll invest in a Topscan PRO!!!!

Cuz I just pulled the trigger on the 05 Nissan Altima…. Cuz I already had a 2012 Nissan Altima that had a driver and the ECM replaced it with a used one registered the van into it program the keys next sucker rant is still running to this day.

Topscan Pro does just about everything my big Xtool 900 does yesterday….. I put a used ECM in a 05 Nissan Altima bam registered the vehicles VIN number into that old used module ECM program the keys and it started right up….. Even though they’re having the classic misfire on three but I don’t think this time it’s a burnt driver in the ECM cuz that’s not it it didn’t fix it so what I’m thinking is it’s either wiring or a burnt valve.

I kept that thing on me everyday when the last year i was working full time as a technician, it was what initially put TopDon on the map for me at least.”