Look for bad grounds, it sounds like you have a couple, and the systems are back feeding on the others to work.
As stated the right TS sounds like a bad bulb.
97 Sahara, 74 Renegade, 72 CJ5, 55 Willy's (the Beast) Boss 302, 6:34 gearing, Bose 901 speakers.
God I miss that Jeep. Forgot the kinda Jeep, 80 SX4.