Looking for suggestions on this problem. 1999 FLHTCUI (Magnetti-Morelli). Starts & runs but idle’s a little low. Tach does not work. Engine light on after start up. Trouble code 35 (tachometer), no other codes. I already know the tach doesn’t work. Wires to tach: Black, ground, is good. Red, power, has 12 volts. Pink, trigger, has no voltage. Not sure where to go from here. Seems as though tach should work if it gets signal from trigger wire. ECM must be getting some kind of signal or else it would not be able to fire and run the engine. Where does ECM get signal from to give signal to fire coil? Cam position sensor? Crank position sensor? Does ECM throw trouble code to show tach not working but everything else OK? Any help would be greatly appreciated.