I have a 2022 F250 Tremor and I was on a road trip and towards the end of the trip my dash lit up. Abs, steering assist, 911 not available. Serious canbus communication error somewhere. Truck drives and shifts fine. Its just the auxiliary stuff that is freaking out. I thought it was the wheel speed sensors. Swapped them. Didnt fix it. Then i thought it was the water in fuel sensor. The truck ran ok for one day when i swapped the wheel speed sensors but it showed water in fuel light. So i swapped the wif sensor. Still christmas tree. I started pin checking. I had 8.2 ohms from pin 14 on the obd to ground and 8.2 from pin 6 to pin 4, ground. I had spilled a whole coffee into my console during the trip so i pulled the console, cleaned the connectors under there really good. Got rid of the can high and low to ground but i was only reading 120 ohms from pin 6 to 14. With the pcm and abs module plugged in, I should be reading 60 ohms for the two resistors across 6 and 14. Then i thought the gateway module maybe got fried when i spilled the coffee. I pulled it, noticed that the connector was touchy. When i pressed the connector a certain way, the multimeter would go OL so i got a new gwm. Plugged it in and still only get 120 ohms. Somewhere along the line, there is no handshake between the abs module where one resistor is and the pcm, where the other resistor is. Can anyone point me in the right direction to start shooting pins? I have alldata and can see the wiring diagrams, but I dont know what the connector numbers are or where they are located. There is obviously a break somewhere in the harness that i cannot seem to locate. Thanks!

 

Check those plugs back under the truck bed in the right rear, by the spare tire. Pull them apart clean with electrical cleaner and use dielectric grease in them snd plug together and pull apart a few time. Don’t remember if your truck had that problem but some earlier did, they flashed almost the same thing yours is doing.

Smokeploe