What is it?
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 287
Likes: 0
From: Blaine Wa
What is it?
Under the hood of my 01 SD, nest to the power distro box there is a little black box. I popped the top off and there is 1 Helle relay with a place for another relay. Anybody know what this is for? My manual does not say anything about it.
Thanks all!
Thanks all!
Senior User
Joined: Jan 2002
Posts: 170
Likes: 0
From: Alberta, Canada
I am not sure what the front relay is for, but the back one is the one that I had to add in order to have power and brakes at the 7 pin trailer connector at the rear. On mine, the relay was supplied in the glovebox along with the wiring harness for the brake controller and one of those jumbo fuses. Don't remember which was what though -
Trending Topics
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 287
Likes: 0
From: Blaine Wa
I was thinking that it had something to do with the trailer brake systems. My truck did not come with the things you mentioned though. I bought it used.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread
Thread Starter
Forum
Replies
Last Post