"Trailer Fault" under medium to heavy braking??

[DarrenMc32]

I've got the factory brake controller on my 2006 CC Lariat.

Has anyone here ever had the "trailer fault" indication come up during medium to heavy braking while towing? Other than the actual indication and beep, there is no other indication that anything is wrong and the trailer brakes continue to work just fine.

Any input would be greatly appreciated.

Thanks,

[Dave]

Make sure your trailer plug is fully seated

[MUSTANGNICK]

Yes i have the same problem. Ford told me this is a common problem. They said run a ground from the trailer to the bumper. have not tried this yet.

[14mins]

Mine did that until i took a grinder with a wire wheel and removed the rust off the trailer ball and inside the trailer coupling. No more fault.

[DarrenMc32]

Thanks for the advice. I'll check the grounding between the truck and trailer this weekend.

[rem1981]

Originally Posted by 14mins

Mine did that until i took a grinder with a wire wheel and removed the rust off the trailer ball and inside the trailer coupling. No more fault.

Yep. Same here.

[Galaxie]

My trailer does that because it sux (technical term). lol. Using other peoples boxes etc, no issues.

[06DZL]

Check your 7pin plug on the truck, take it apart and check for corrosion. My truck was doing the same thing and i found that only the trailer brake pin was corroded-i cleaned all the green crap off the best i could and filled the plug with die electric grease havnt had a problem sense.