First thing I'd say is head over to
www.aeswave
com and get Paul's book for the $99 I think it is.
Cars may seem harder to work on these days but in my opinion they're easier to work on than in the 90's, 2000's myself.
You don't have to have a to awfully expensive scanner to work on cars. Main thing is you need to be able to pull codes.
I have many scanners from a small Innova 3160d all the up to the Snap-On Zeus but I also do work on my own as well so spend money to make money is the story of my life or so it seems. The more expensive scan tool you get then you'll be wanting to pay to have it updated annually but those are typically $750 and up scanners.
The innova I mentioned I still use for pulling air bag, abs brake and engine codes to this day. When I need something quick I break it out.
Use the extra money you'll save and use AlldataDIY on a multiyear subscription if you're keeping your car more than a year or two as you'll have access to mfr service information for the duration of time you plan on keeping the vehicles.
Years back I recall it was like $45 per vehicle for 5yrs. Well spent money I must say as it gives you repair methods, wiring diagrams, troubleshooting steps, etg.
