Hi - when I use the rear window wash the water just pours down the side of the window and not out the nozzle at top centre of tailgate. Im guessing a hose inside tailgate has disconnected (maybe nozzle blocked?)
Im sure this is relatively straight forward repair but its not obvious how I get access inside the tailgate to reconnect or replace the hose and nozzle.
Dealer is estimating a $500 repair (2 hours labor and replace the nozzle)

Any guidance on steps to do it myself?

Thanks
John (first post so apologies if its in wrong place)