F150 won’t start. Dash lights up with errors

[Jjlembo56]

Were was the breakage in the wire my truck is doing the same thing and the ford dealers wont help its a 2021 i need some real help

Sponsored

 

[chi804]

Hoping someone could give me some advice. I'm having similar problems with my 2021 F150 Lariat FX4. I went out of town on business and parked the truck in the parking deck at the airport. When I got back to town, I hopped in the truck and the lights on the dash seemed different and when I went to start it up, the braked pedal pushed back hard towards me and the dash lit up with multiple error messages: brake system, back up breaking system, etc.
I tried to start a couple of times and got the same strange push back on the brake pedal. I got out and popped the hood and I noticed a clicking sound. The radio screen wouldn't fully come on but it was powered up but it looked like it was trying to get going. It was stuck on the Ford start up screen. The tail gate won't go down either.
Had to have my wife pick me up as I was too tired to deal with it.

 

[t5brick]

Hoping someone could give me some advice. I'm having similar problems with my 2021 F150 Lariat FX4. I went out of town on business and parked the truck in the parking deck at the airport. When I got back to town, I hopped in the truck and the lights on the dash seemed different and when I went to start it up, the braked pedal pushed back hard towards me and the dash lit up with multiple error messages: brake system, back up breaking system, etc.
I tried to start a couple of times and got the same strange push back on the brake pedal. I got out and popped the hood and I noticed a clicking sound. The radio screen wouldn't fully come on but it was powered up but it looked like it was trying to get going. It was stuck on the Ford start up screen. The tail gate won't go down either.
Had to have my wife pick me up as I was too tired to deal with it.

This sounds like a low/dead battery. How long were you out of town?

 

[chi804]

Parked it at the lot on Sunday and got back tonight. It’s a 5 old year battery too.

 

[t5brick]

Parked it at the lot on Sunday and got back tonight. It’s a 5 old year battery too.

If you’ve got a non-PowerBoost, I’d suggest dropping an AGM H8 sized battery in there and doing a BMS reset. For PowerBoost, you’re limited to AGM H7 size, but from what I’ve read you may also need to replace the secondary 12v battery. I’m no PB expert though.

 

[chi804]

I bought and installed a new battery. It started right up. Thanks for all the help!

Sponsored