quote:Originally posted by M!ke H.:
I found that diagram in here somewhere... so I'm not 100% sure it's accurate, but it's the only thing I had to go on... I just got the alternator back at lunch today, stopped by the house and plugged it all in... saw the light on and knew the problem was still there.
I'll check for continuity between B+ & D+... that makes perfect sense. Of course we're assuming it's not supposed to have continuity... I profess my ignorance on that!!!
Looking at the diagram DF switches the regulator right? If that's the case then it appears when engaged D+ goes to D- (Ground) which illuminates the dash light.
It would also make sense for me to check if D+ is getting voltage when the key is off. If it is then that would likely be the problem.
I think...
Does the alternator start charging when D+ goes to ground?
MH
You are on the right track. I would suspect your ignition switch is failed. Confirm the lamp is extinguished once engine running and also that you can measure about 13,5-14,5 volts on the battery with engine running?