I need some electrical help. I just bought a 2011 Ford Edge and have been fixing some issues that I knew were present when I bought it (was hoping the electrical issue was going to be easier). One of the issues is the interior lights keep flashing on and off when the car is running. This is what I've found while troubleshooting while the car is on.   With fuses 4 and 12 installed in the BCM, the lights on top of center console, the lights on top of the back seat and the cargo light flash. When I press the light switches on top of the center console, the lights remain on. The middle light on top of the back seats and the cargo light keep flashing and there is no light switch for those. With fuse 4 removed, the lights on top of the center console flash, when you press the on/off switches they turn off. The middle light on top of the back seats and the cargo lights keep flashing and there is no switch on them to see if they turn off or stay on. With fuse 12 removed, all the lights turn off. The center console lights can be turned on with no flashing when the on/off switches are pressed. The cargo light is off and there is no on/off switch. The back passenger's lights are off and can be turned on/off with the switches. None of the lights turn on when a door is opened.    No error codes on the cluster about door ajar, but the back doors don't give a warning when they are open. The only warning light on the cluster is TPMS (already bought new sensors but haven't installed them yet) but I doubt that is the issue. I don't believe the issue is the battery saver relay since the issue is still there when I remove the fuse for it. I found the attached wiring diagram on the forum, but I need one with the door switches also. Anybody have any idea what can be or can point me in the right direction to continue troubleshooting? Also, is there any good place where I can get the diagrams? Thank you.  

Yes, it should contain fluid.    

OK, so I "THINK" I may be understanding this now but CAN SOMEONE CONFIRM? I think the coupler (pic below) is supposed to be oil filled and if you find oil in the front case that it resides in, it confirms the coupler is shot?

PLEASE HELP ME WITH SOME ANSWERS -- Looking for some answers that seem to be impossible to find. Replacing the Rear Diff Clutch and there was lube in the case when I dropped it. I am thinking that case is supposed to be dry. I am in question as to if the clutch pack has lube inside it and that is what I am seeing OR is the seal between that housing and the diff housing leaking and I'm seeing rear diff gear lube?   I bought a new clutch pack off ebay.   Rear diff sounds good, we had the popping and shuddering in low speed parking lot maneuvers which from all I have read indicates the clutch is shot. I know what bad diff bearings sound like and its clean sounding. There is no highway noise from the rear diff. There seems to be no seal kit available that would seal the two housings from each other.   All online info is pretty vague.

I have a 2015 Ford Edge Titanium that just started having PTU issues. Are the PTU on recall ? If not they should be. It’s not customer neglect it’s the plastic material used to seal the PTU that causes the fluid leak and destroy the PTU. Why isn’t FORD standing behind their product. Previous Ford Edge vehicles had PTU issues and they were covered by a recall. We the customer pay your prices and you the manufacturer should be standing behind your product and taking care of your repeated customers. I’ve had 5 Ford vehicles in the 40 years that I have been driving. Don’t let me down now. Please do what is right for the customers. I know that I’m not the only person with PTU issues and I have been told by several dealerships in their service department as I have been calling trying to find the best price. I hope that there will be a recall on this issue so we all can continue to enjoy our vehicles. Thank you ! 

i thought the edge was a stretched escape too. thanks for the info.  

I replaced my front ones under recall, now need to keep a look out for the notice on the rears.

I thought when I had my brake hoses replaced that would be the end of this issue. I guess not! https://www.caranddriver.com/news/a65921786/ford-edge-lincoln-mkx-suvs-brake-hose-failure-recall/

Lincoln MKX and Nautilus are on the same platform as the Edge (Nautilus 2024 and newer is on a new platform built in China).   MKC and Corsair are on the Escape platform.

been looking at the lincoln corsair reserve, either new or a couple years old.  people say they are built on the escape platform , but i think they are the closest thing to an edge you can buy  now. a nautilous is larger . the 2 have the same wheelbase and basic underpinnings. so why dont you talk about the corsairs here. as far as i can see they are an expensive edge that will be gone this year. any comments will be appreciated. irv toms ps- doesnt look like i would be gaining a lot over my 19 loaded titanium with the elite package  except miles . i have 57,000 miles on it.