Trailer towing package relay locations

[projectSHO89]

Originally Posted by CMcCarthy Anyone? Bueller? The large ones are full size ISO relays, the smaller ones are half size ISO relays. Available at any auto parts store. Steve

Register today or sign-in to remove these ads!

[projectSHO89]

Well finally decide to figure out which relay does what in my 97.

Heres my ASCII art rendition as viewed standing at left front fender

******************************
** *
* * *
* * *
* Rt Turn/BR * Lft Turn/Br *
* * *
* * *
* * *
******************************
* *
* *
* *
* CHARGE *
* *
* *
* *
******************************
* * *
* * *
* * *
* Running * Backup *
* * *
* * *
* * *
******************************
* * *
* * *
* * *
* Unknown * blank *
* * *
* * *
******************************

No clue at this time what the extra relay labeled "Unknown" is for....

Steve

edit; Dang it. Looked pretty when I typed it...

[MXMOTOGUY]

I have an '07 F150 Screw and on a recent camping trip with our 27' travel trailer, I blew the right side turn signal / brake fuse and the Battery Charge relay. Those are the ones I KNOW of, probably more. In reading this thread, it seems like this is a fairly common problem. Anybody know of a solution to this (other than keeping a supply of fuses on hand at all times)?

[349 Lynwood Ave]

How do you unlatch the cover on the box under the hood?

[SSCULLY]

Originally Posted by projectSHO89

Well finally decide to figure out which relay does what in my 97.
..<snip>....

edit; Dang it. Looked pretty when I typed it...

Went through this with Steve, to add his notes to his picture ( aka he did all the hard work, I played admin on this one ).

[biel63]

Hope I'm in the right spot for this! I have a 97 F150 with tow package, I hooked up the brake controller (Hopkins 47225) and connected my trailer. I have all lights and signals as should be expected. I'm not 100% sure the controller is functioning, in fact I'm about 90% sure it isn't. I don't get the green light showing a connection. I've checked all fuses. I actually checked them prior to installing the controller and found the 20 Amp fuse in the mini fuse box under the hood blown. I replaced that one. Everything else looked good. In reading the forums I keep reading about the relays so I guess my question(s) would be could a missing or bad relay cause this and if so, does anybody know which one. I've been through my owners manual several times and cannot determine which one it would be. Any and all help is greatly appreciated!

bill