Scully1013

Watched his video prior to changing my alternator!

I'm sure he saved me hours of swearing and a few busted knuckles!

Just to close this out. Issues are resolved.

It was Infact an alternator issue. Bought one from the dealer and put it in Friday night. Still puzzled why the others tested ok.

That's really what I want to find out. If they ruled out PCM.

Well they went through the car and found nothing, Aside from the alternator is apparently only sending 4.5 volts. The same alternator that I witnessed testing on and it was putting out 14.8ish at the parts shop. They can't explain it other than the alt must be bad?? Not sure what to think. The technician that was trouble shooting the car is supposed to call me in the morning

Dealer has had it service bay for over 3 hours now and can't diagnose the issue as of yet. I'm going to guess that's good thing at least as far as the PCM is concerned. Thinking that it would be easy to rule that out quickly

Yea that's what I'm thinking. Really hope it's not the PCM and it's just some sensor.

Well so much for that. Started dying on me again. Just made it to the dealership as it went

Alright. New battery is in, MFT is working (someone may or may not have remembered to check all the fuses!)

However check charging system light is now intermittent.

Would the battery management system not being reset explain the warning light?

Ok I have taken a known good battery from another edge and tested. No more charging system light.

However no MFT. Screen remains black and can't change any settings from menus from steering wheel

I'd have to look at the battery (car is not here) but my best guess is it's close to 3 years old and now that I'm thinking about it I changed that battery and never reset a thing.

Also what is involved in resetting the BMS?

Just to clarify a few things. The alternator tests good on a dyno puts out good voltage. On the car it puts out no voltage. And even when starting the car with the battery fresh off the charger the MFT system does not work. Black screen. After 30 or so seconds of starting the car the check charging system light comes on. Can all of this be caused by the battery? I have not load tested it. But was told it checks out at auto parts store.

Is there a separate voltage regulator other than the one in the alternator?

Sorry I didn't use the correct wording. The battery, when charged with an external charging unit will hold the charge. It just won't charge while its in the car and running. But I can certainly check there that as well. I know when we had it hooked up to run diagnostics on it, the battery was reading fine.

Need some advice. I have a 2011 Ford Edge that just recently hit 101k miles. The check charging system light kept coming on and off on Friday then while I was on my way home, I experienced a full system shut down of the electrical in the cabin. When I pulled over the engine - for lack of a better word, shuddered and seized. The steering column locked and I couldn't put it in neutral to get it in a safer spot. I thought it was the alternator so we changed that and got the same issue. Took the alternator, both new and old, to be tester and both are fine. At this time, the battery will not hold a charge, everything in the cabin is dark, and for some odd reason it's blowing hot air out of the vents full blast and can't be turned off. Obviously. We're still going to check for exposed wires and possible corrosion. Any other thoughts as to why this is happening?

I do know I have a blown fuse on the positive connection to the battery which I'm replacing tomorrow. Surely that's not the only problem.