parking lights not working fuses and bulbs ok

Then probaly you have a bad switch...that is what I would check next.

Any aftermarket alarm wired in?
They wire into parking lights so they will flash when alarm is set.
If so,maybe a fault in the connection there.
Also possibly a fault in the headlanp switch which is part of the multifunction switch.( high dollar switch,dont wanna be guessing here).
Also possibly an open in wiring from switch to lamps.

Just some thoughts.

Jim

Good call Jim,.....keep forgetting about those alarm systems.