Do you have power going to the switch and back out? Check using a test light. I've seen switches test good with a meter, but the contacts can't pass enough power to light the lights. The meter doesn't put any load on the switch. Next, just follow the circuit to the turn signal swtich, checking connections and wiring.
99 TJ 4.0 5 Speed Sport, 2.5" Rough Country Lift, 1.25 Body Lift, 1" MML, SYE and CV shaft,JKS Quicker Disconnects, 33x10.50 BFG Mud Terrains,4.56 gears, Super35 w/ Ected Locker, Warn 8274 and some other stuff.
2014 Rubicon Stock