Check for 12V at the coils, it should match B+

With no grounding, it is possible the ECU fried, indeed, though. You can confirm that by watching the ground wire waveform on an o- scope

Yeah, a 2001 has to be cloned or married to the car to work.

The coils get B+ or battery voltage from common power relay. The ECU grounds them to fire them

If you get Vida/Dice we can hook you up with a couple of guys who can clone over the internet. You'll need a laptop with internet connection and a Skype or Viber account. You don't need to install the complex Vida software but you'll need to install the interface tool and have the USB drivers for it...

Figureabout $250 for the hardware and service, about 1/4 of what the dealer would charge , minimum

No codes leans more to an immobiliser problem than an ECU problem, but you are in rarely charted waters.

VolvoOH (username) had a fried ECU in a recent (past 2 years?) thread

Users Yagger and doublebug are the guys go to for this , about 1/4 the cost of dealer and done at any place with internet, of course