Dash lights

The common issue for the gauges is the voltage limiter. It is a rectangular box with 3 prongs. 1 prong is grounded, 1 prong is 12V from ignition run, and the other prong feeds a lower voltage to the gauges. It will show as a dim flashing light when using a test light.

The pin connectors must be carefully soldered to the printed circuit board using rosin core solder. Corrosion on the lamp holders can be a problem.