2019 F150 recently started having electrical issues.

Cracked my rear LED tail light a couple years ago, taped it up with no issues then two days ago it went out (fast turn signal, etc). Almost at the same time, my fuel gauge stopped reading. Soon after that, the park assist went out, my power lift gate went out, lights in the bed went out and then my other (right rear) tail light went out.

I assume this is all related and I assume I have multiple blown fuses but the question is what would cause the blown fuses. I’ve ordered a new left tail light in hopes that the issue is with the old cracked light.

I’m not excited to go to the dealer with this issue because I don’t have faith in dealerships and I don’t want to hear that they can’t get me in for 2 weeks and that they’ll need the truck to sit with them for 3 weeks in addition to a bunch of money for some meth head to tell me they can’t figure it out.

thoughts??? TIA

 

Welcome, any codes? was there any moisture in the light?

 

No visible moisture. No obvious moisture issues from the past either (no corrosion, etc).

P0463 popped up related to the fuel sensor. After the left tail light went out.

 

Before firing parts cannon, check grounds at rear of vehicle. Near driver side taillight, on passenger side rear bumper, etc.

 

Yeah I need to. Problem is I don't know where to start with that and don't think I'm smart enough to figure that out. Guessing google / youtube has something on it.

 

I would also check the connectors/wiring located on top of the driver-side front wheel well cover (under the hood, next to brake booster)(3 or 4 od them).

 

Do you have BLIS blind spot radar? If so, I think the CAN network is connected to the tail light. If the CAN is shorted, it can take down everything else on the network. I recall seeing a YouTube video where that was the case. If it's a BLIS light, try unplugging it and seeing if everything else comes back.

 

Appreciate the help...will take a look tonight.

 

In case you're not sure if you have BLIS, the lights that include BLIS radar look like this. Lower portion is darker, doesn't light up, and has the radar symbol.

 

It does have BLIS. Apologies, what is the CAN network?

I did disconnect the left tail light this weekend and reconnected but didn't seem to help anything.