There should be two pumps on the bottle. One for the windsheild and one for the hatch. You can test them by removing them from the bottle and hooking them to some test wire and test them off your battery. If both work start checking the wiring and the switches. I assume that sence you have trimmed your fenders you should be able to get to them fairly easy. Unless you are still using you inner fenders, tahn a little more work may be on your tray. If it is a pump motor make sure you know which one , they are specific to hatch or windsheild. I believe to bottom one is windsheild. At least thats how mine is setup. Oh and dont by a new one from parts store their like $20.00, look at local junk yard. They sell them for around $2.00 $3.50 with warranty up here. I found out too late and spent too much.LOL

Should only be something as simple as a dud pump or perhaps a wiring issue - maybe even a connector left undone by the repairer.

Was there a lot of damage in the crash ??? .... the washer tubing is wrapped with the wiring on the ones I have ... may also be a kink or twisted section stopping water flow if the harness wasnrt refitted properly.