I just found out with my truck that if the selector knob wiring is unplugged, both the 4x4 and 4x4 low lights flash every two minutes. And it seemed like there was some sort of pattern to the flashing of the lights. Will 4x4 engage if you try to engage it?
1996 Ford Ranger STX 4x4 4.0L
1983 Honda Shadow VT750C