Search this CJ section for grounds, you'll find some good info. When the signal light indictator stays on, in the speedometer, it usually means a bulb is burnt out somewere. Not sure on the LED's though.
I asuume when the signal lights are off, the dim light goes out.
1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1980 CJ5 trail Jeep.
1989 YJ the CJ to YJ.