Car has been elsewhere and has had a new alternator and had the ecu checked, (proven to be ok?) The problem is the car is still not charging. The alternator is putting out 11.45v-12.05v.
I checked the diode ripple which to me looks bad (Drops out to -200mv twice consistently) but i am reluctant to replace a brand new alternator?
The one wire going to the alternator swithces between 0.03v-2.54v approx. every 2-3 seconds? I dont know what is supposed to be happening on this wire and all i can gain from wirring diagrams is that it comes from the Multifunction Control Module1/Relay fusebox/Fascia.
The wire comes from the fusebox in the engine bay to the alternator. I have found the wire going into this fusebox coming from the Multi Func Mod. and it has the same values on it?
Any help much appreciated. Cheers Luke Browne
Also if someone can tell me how they upload their waveforms i can post the diode ripple?