Help needed with '97 960 blinkers

My daughter has a '97 960 wagon, which got got rear-ended by a tree
recently (!) on the left side, breaking part, but not all, of the
plastic on the left tail light unit.

The tail lights are functional, but she has no blinkers nor emergency
flashers on either side, front or back. Since both sides are out, my
gut-level feeling is that there's a wire that got snipped when the
bumper did its thing. (Of course, I coul;d be totally wrong on this -
something might have been bounced loose in the bump, but it's nighttime
and we'll have to wait 'til morning to inspect things, anyway)

Aside from "underneath on the left, dummy!". does anyone have any
suggestions on where we should look for the problem? Is this likely to
be a user-fixable problem or is this something that my
recently-graduated-from-art-school daughter is going o have to spend
our non-exostent cash on?

Any suggestions gratefully appreciated.

(She's looking in the manual as I type this, but since the woman that
she got that car from is from a multi-Volvo family and couldn't find
the '97's manual, so included the one from a '98, which we've already
foound out has significant differences, I'm not totally convinced that
we'll get much help out of it...)

 

There might be, or maybe has been, a short circuit which blew the fuse
for the blinkers...