2017 Expedition Electrical problems

[verna2197]

Something is going on with my Expedition. I have a handicap lift attached and the wiring was done by a certified handicap business. Anyway for some reason my truck thinks I have a trailer attached. It beeps constantly saying something about brake light, plus still having problems with tow/haul not working, if someone sets in passenger seat and forgets to fasten seat built there is no reminder that comes up. Then the other day I was driving home, I was talking on the phone thry bluetooth and my display went completely black for a few seconds then the Ford Emblem showed up and then finally the display came back, the person I had been talking to was still there calling my name. This vehicle is really starting to freak me out. Getting scared it might catch on fire or somethiing while I am in it. Anyone else having electrical problems?



Verna Sue

 

[99WhiteC5Coupe]

I would return the vehicle to the “certified” place that cut into your wiring and have them repair it properly.

 

[jeff kushner]

For what it's worth Verna, I've got 32,000 miles on my '17 and it hasn't had a single hiccup....electrical or otherwise so I think the suggestion to return to your installer is the wise path.

jeff

 

[ExpeditionAndy]

Something is going on with my Expedition. I have a handicap lift attached and the wiring was done by a certified handicap business. Anyway for some reason my truck thinks I have a trailer attached. It beeps constantly saying something about brake light, plus still having problems with tow/haul not working, if someone sets in passenger seat and forgets to fasten seat built there is no reminder that comes up. Then the other day I was driving home, I was talking on the phone thry bluetooth and my display went completely black for a few seconds then the Ford Emblem showed up and then finally the display came back, the person I had been talking to was still there calling my name. This vehicle is really starting to freak me out. Getting scared it might catch on fire or somethiing while I am in it. Anyone else having electrical problems?



Verna Sue

Verna, My assumption would be that the Certified Handicap installation business screwed something up. Ford will disavow any responsibility so you have to take it back to them and tell them you didn't have these problems before their installation and then see if they stand behind their work.

 

[Adieu]

No electrical problem.

Your installer half-assed it and tapped into trailer connections to power something.

While wiring supplementary lighting to trailer light connections WORKS, I'm guessing that whatever circuit they've got is pulling irregular amounts of power or has massive resistance or some other crap making the truck's computer thinking it is hooked up to a trailer with busted electricals.

Anyway, lift SHOULD have drawn power from the charger/cig socket in the back or the power fold seat connection, not the trailer brake light...

They messed up

 

[JExpedition07]

Something is going on with my Expedition. I have a handicap lift attached and the wiring was done by a certified handicap business. Anyway for some reason my truck thinks I have a trailer attached. It beeps constantly saying something about brake light, plus still having problems with tow/haul not working, if someone sets in passenger seat and forgets to fasten seat built there is no reminder that comes up. Then the other day I was driving home, I was talking on the phone thry bluetooth and my display went completely black for a few seconds then the Ford Emblem showed up and then finally the display came back, the person I had been talking to was still there calling my name. This vehicle is really starting to freak me out. Getting scared it might catch on fire or somethiing while I am in it. Anyone else having electrical problems?



Verna Sue

Don’t freak out your not going to catch on fire. I agree with the other users take it back to the installer and explain what you’ve been experiencing, remind them that these things never occurred until after they modified the vehicle.

 

[07xln]

Every once in a while my screen will go black for a few seconds and come back. It would appear to me its rebooting. Doesn't happen very often. I would say its done it maybe 3 times in the last year or so. I don't think its anything to worry about.

As far as the trailer issues I agree with the others, take it back to the installer.

 

[Big Brian]

my only question would be did you have any of these problems before they installed this?

I bet I know the answer

 

[bobmbx]

Where is the lift attached?

 

[East-TN]

Verna, I live in Knoxville...let me know if you are nearby and I can help.

 

[chuck s]

You can bet the Certified Handicap installation business just tapped into the trailer towing harness wiring. There's red hot 12vDC wire in the harness wired to the center pole of the round connection. "Trailer battery charge." Don't have a wiring diagram handy but this connection was ignition controller, not direct to the battery.



-- Chuck

 

[powerboatr]

yep i would be back at the installer and asking a few questions.
I had an alarm guy shave insulation off a wire and then wrap his wire around it to get power...talk about squiggly events out of the blue.
Took a few weeks to find it and sure enough it was a half ass install. ended up costing the shop a good bit of money for ford to replace the under dash harness for a f350
the certified installer should have a body builders and upfit book from ford, it lays out everything they need to get power through dedicated circuits
https://www.fleet.ford.com/truckbbas/topics/2017/maintoc.html

https://www.fordmobilitymotoring.com/AdaptiveEquipment/AdaptiveEquipment#.WnpBb-dG2M8

 

[Boose]

I have a Braun Mobility lift chair installed in the passenger back seat of my 17EL for my son. The chair is hooked up directly to the battery. Not sure why your trailer hookup should have been touched other then they wanted to save wire... Definitely go back to the Mobility Provider.