Post 80, member Mirenic, Take a good pair of a high temp wire and connect it to a lamp in the car, the other end find where the wires terminate for the S/C clutch and put one wire on each of the two. Now when the clutch engages/disengages, you'll have the lamp light and go out as it cycles on and off. If it's cutting on and off, it might be pretty annoying but it'll show you exactly what you want to know at a very low price. Only thing, make sure the light is not too bright!