The design is like this. Both pilots are suposed to flash. The pilots are marked front and rear. Front pilot is on the left and rear pilot is on right side looking at top of switch from lever end. As if it was not mouned to column. The SignalStat 700 "analog algorithm" is: if lever is in right turn mode and the front pilot is off, it means the Left Front bulb is bad because the oposite of lever position is left "turn" and front pilot is off. If rear pilot was off, same lever position, it would mean that Left Rear bulb was bad. Interpolate for Left turn lever position. It can, of course, be the wiring for the offending bulb.The fact the pilot flash serves anoither purpopse, a reminder to turn off turn signal lever after turn. This is the sole function of most pilots on a non self cancelling T/S switch.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn