Post your capture and we shall have a look. No need for capital letters as this means your shouting and its not polite.

You’re searching apples in a wrong tree. There’s nothing wrong with the car.
Voltage spike is induced by inductive loads switching off. Bring energy in the system and voltage goes up if not dissipated. And that’s not from the alternator. !!!!!!!!!!!

Youtube and a pico does not necessarily make one a good disgnostic guy. For the rest, you won’t regret the purchase.

So when my fluke shows me 12V or -12V, it does not show me voltage direction (a bit improper word).

Aftermarket radio?

It worked with ;
It never worked with , on any of the 7 beta versions I tried. On win7 and win10 pcs.
Thanks for letting me know the workaround.

I need some clarification with regards to Math Channels. Maybe a simple one, can't fully recall, but was the math channel for Crank not yet ready? As I cannot get the Next button to be enabled. Are there any other prerequisites to get that button good?

Diagrams for combo (opel) are online in various places for at least 15 years.
Why not make everything back original? Read about clamp, broken hoses, flat battery, if owner not willing to pay, junk it.

One would expect dealership to have access to all waveforms they need, straight from the factory. Maybe that explains missing button?

There’s no need to put so many question marks. If 5444 is an automotive scope, then yes, if not, then not.