Join Date: Dec 2001
Location: Belleville, Illinois
Thanked 22 Times in 17 Posts
Either the resistor is shot or the ignition system is drawing way too much current. I definitely would not try running without the resistor.
Disconnect one end of the resistor and then check its resistance with your meter. The '78 Jeeps used a resistance wire instead of a discreet ballast resistor. The '78 FSM says that the wire should have 1.35 Ohms. If you get a reading considerably higher than that, replace the resistor.