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Update. Figured out I was getting this warning if I didn't press the brakes over a certain period of time. Drive to work is 20 min on city streets with traffic, stop lights and stop signs. Light never comes one. The interstate driving is later at night with minimal traffic and check brake...

Looking for help on a P0556 code (Brake Booster Pressure Sensor Circuit Range/Performance). It comes with a "Check Brake System" warning on the dash. It doesn't come on during my daily 20 min drive to work; but has come on the last four times I've been on the interstate. It's been pretty...

Sorry to bring up an old post; but does anyone know if this comfort file is still available? The link in the post is no longer active.

Good info here. I’ve had it happen a few times but it’s always reverted back. Good to know why.

Heal up fast!

Welcome. I’m also in CO.

I had some of the same faults and ended up being that same ground under the rear bumper near the spare tire. I had messed with it when I tied in my chase lights to it.

I just started getting a hum from the front left. I thought maybe it was road noise from the KO2s as I'm hitting 26K. But it came on all of a sudden after my last off road adventure. It seems to be most noticeable at 25-30 mph. Is it normal to only replace the driver side or if one is going...

I’ve never had mine intervene before. I’ve gotten a light a few times when a car ahead of me is turning right and I’m approaching fast knowing it will be out is the way. But I’ve never had the brakes engage in their own (other than adaptive cruise).

I got this warning a few times years ago during COVID while working from home and not driving the truck for weeks at a time. I installed a pig tail to plug into the battery tender. I hooked directly to the battery terminals. Looks like I need to move the negative side to a chassis ground...

When I took mine in for cam phaser software update, they updated the TCM at the same time. This was on a ‘19 and I wasn’t having any shift issues.

Rocky Mountain Graphics.

I did rigid lights through Specialty Performance Parts. Their harness makes it plug n play. Easy install for novices.

I went with stock location Cobb intercooler and Goose Tune. I had a second tow tune done as well.

Yep.

I did not disassemble any further than that. I’ll open them up.

No moisture found. Getting a lot of road grime at the edges as you can see.

No holes drilled in the taillight. I did go through the car wash the day before I started getting any of these warnings. All grounds (that I’ve messed with are tight). Will check for corrosion. Going to remove taillight again to check for moisture.

Appreciate all the inputs. I put a battery tender on it for now. The rear lights came with a harness to plug into the rear tail light. Just disconnect the connectors and put the harness in between. I had read about someone having similar codes when getting water in the taillight. So I...

Not sure about Auto start/stop. It’s disabled via Cobb accessport. I don’t have forscan and so no changes there.

What is normal lifespan of a battery in the Raptor? 2.5 years seems fairly short. Couple other things that popped up for the first time today, all tire pressures went blank and when I turned the truck off, got a message stating “Restart now or key is needed” and key was in my pocket. All...

Passenger side locks work (although it’s not throwing any warnings now). Battery reading 11.99V when the truck is off (getting reading from accessport gauge). I do have a ground for the rear lights that I want to check once all the slush and ice melts off.

2019 SCREW

Looking for some help troubleshooting. I’m getting the following codes: P193E, U0164, U0199, U0200, U0252, U0256. I get warnings about blind spot detector, passenger air bag, mirrors won’t fold, no heat/air etc. I‘ve been able to clear them and might be a couple days before they come back...