A co-worker has a 99 Durango with a blinker problem. When he turns the signal left or right, it will flash a few times, then stop. The number of flashes varies as does the speed of the flashes. Sometimes they don't come on at all until he turns the stalk off and then back on. The Hazards work normally and at normal speed. He has replaced the multifunction switch with no change. When you look in the owners manual, it shows a fuse in the #10 slot for the turn signal and #16 is open. He has a fuse in #16 and not a fuse in #10 and they blink. Pull the #16 that's supposed to be open and put it in #10 and nothing happens. This is contrary to what the owners manual shows. Also, with the key in the run position the turn signals don't come on. Only if you start it with they even work at all. Is that normal? My question is where would be a good place to start to look for the problem.