I don't think this is one of those. It does, however, have four wires coming out of it. I figure red one to the + power supply, black one to ground, green one to lights, blue one to coil???
I do believe ....
green is coil
blue is dash lights....maybe pull the tach bulb and check the contacts with an ohm meter. see if you get continuity to the blue wire on one contact and to black on the other.
red is B+
black is ground
