I've gotten my hands on a XC 70, the Gauges are dead (DIM you can read with flash light I think) car runs rough, hesitates and the CEL flashes. I am guessing a fuse somewhere or the CEM Failed in some way. I've driven the car, it's not in my posession yet. waiting for it to be transported. What should I look for? Obviously the first thing I'd do is plug a OBDII reader on it to see what if any codes i can pull, any ones I should expect?
it's the 2.4l Turbo engine if that helps any

A flashing CEL means multiple misfires, obviously more than one coil is/has failed. Hopefully, not a headgasket issue, which would be rare, or a timing belt that broke and the owner just put on a new belt and ignored the bent valves.

The DIM or CEM has a problem. A very good code reader can tell you the difference. Xemodex will charge about $400 to repair each, with a larger heat sink. But I would check the electrical connections on the CEM first, they can come loose.

When you look for coils, don't forget Amazon.com or other reasonably cheap web sites.
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Keeping it running is better than buying new