[Keith True]

The most important thing on a 900 series Signal-Stat is the ground of the unit itself.Everybody checks grounds at the lamps,but not too many realize how important it is on the Signal-Stat switch.I have no idea if it affects your problem or not,but a bad ground on the switch itself will produce some pretty strange actions.I've seen just a right front light glow,or a left rear,all because of the bad ground at the switch.Probably the easiest way to ground the switch is to drive a nail through the mounting strap,from the outside in.That will leave 4 little sharp points sticking inward.When you tighten the strap they will dig into the column.I worked on a newly restored Jeep once where the guy had no ground between the column and the chassis.He had done such a nice job of painting everything the column was insulated.I really thought that with all the metal-to-metal joints there would be a place for the juice to sneak through somewhere,but there wasn't.I touched a wire from the switch body to ground,the lights came to life.