I am trying to wire my 07 explorer for trailer brakes. Currently it is wired with a 4 flat. I found the connector under the dash that I plugged my wire harness and brake controller into, however, I can not locate where those wires go. I've traced the wires from my 4 flat in the back of my car but cant find the brake control wire. Where this might be hiding?
View 4 RepliesJust bought an 04 Super duty with the factory plug 7pin and 4 pin plug. Checked the fuses and finally tracked down the 2 relays under the hood but can't seem to find anything wrong. Everything on the trailer works except for the running lights. Is there another fuse or something I have missed? Trailer works fine on my buddies Duramax and worked fine on my old 97.
View 14 RepliesHooked up the toyhauler Friday and before we were off of our street I got the "Wiring Fault on Trailer", brakes on trailer worked, got out and verified the lights were working so we proceeded on.
When we got to the destination the manual says that if the fault stays on when disconnected it is an issue on the truck side, it is still on when the trailer is disconnected.
My trailer wiring is not working, at least from what I can tell. Embarrassingly, I know this because the little brake light I have in my trailer hitch no longer lights up. I've tried different bulbs and a different unit, so it's definitely the wiring. I do not have access to a trailer right now, so unfortunately that's all I have to go on. It's plugged into the 4 pin jack. Is this something I should be going to the dealer for, or more like a blown/loose fuse or something?
View 13 RepliesI only get the fault when backing up. Driving forward it's never a problem. The truck is a 2015 F250. We are pulling a 33' travel trailer. Both are new. I was not sure if the fault when backing was something that happens or if it might be indicative of a problem. The manual says it's not an indicator of a problem. Rather, there might be an issue. Again, it works fine when traveling in a forward motion.
View 10 RepliesMy park lamp circuit is dead. I have tested with a multi-meter and there IS power at the fuse. However, no power at the plug. I have pulled the bumper and found the plug for both the rear taillights (the park lamp circuit WORKS in the taillights) and the trailer wires. Confirmed it is dead there as well.
Both bundles go into the frame rail at the fuel tank, but I not sure which is which where it comes out at the firewall. A web search did not reveal a diagram and the Ford repair CD I have does not list Excursion diagrams.
Got a 2002 7.3 f550 and the other morning it wouldn't go into high idle. Noticed my parking brake light was off. Messed with the switch and eventually jumped straight from the connector to ground... still no light. The light does illuminate with key on. I have tested the fuses. Where do I go from here? Looking for a wiring diagram....
View 14 RepliesI drained my batteries enough that I needed a jump after the last time I was troubleshooting trailer wiring, since I keyed on a bunch of times. What fuse or relay do I need to pull out next time? I'm thinking of pulling fuse 302, HFCM relay (or fuse 7 in the disto box under hood) to disable the fuel pump, but what fuse or relay is for the glow plugs?
View 2 RepliesExactly where the parking lamp trailer tow relay is located on a 2002 F-250 Super Duty 4X4 CC 7.3L?
View 5 RepliesDriving the truck today I noticed mssg from info on dash " problem with trailer wiring". I wasn't hauling anything. the message went away on my next stop when a truck was turned off. On my next stop, I was pulling into a parking space truck stalled and I saw another message saying something like " please pull over safely and stop a truck." Luckily I was already parked. the truck would not start or even turn over. after about an hour truck started but brake symbol was on the dash.
View 10 RepliesI recently purchased a 2011 F550 Super Duty with a flatbed mounted on it. Turns out, the trailer wiring harness is totally screwed up and I am getting tons of shorts whenever it rains. Going through it front to back, we are finding multiple problems like missing fuse box covers, damaged fuses for starters. The Ford dealership in Texas that did my prepurchase inspection for me totally missed all of this, so i am stuck holding the short end.
IN the rear of the truck we detected shorts in several areas. One of them is in this adapter pictured along with this. Is this a Ford part, or does it appear aftermarket? Is it just an adapter or is it more than that? I am just now getting to l know this truck more specifically. given the date of manufacture on the label it would seem to be from Ford??? Part # is 99-004 and 71-012-A...
Every time I touch the brakes I now get a very annoying beep and an error message that says "wiring fault on trailer." I don't have a trailer hooked up so not for sure what's going on. The error message on the console I can live with but that loud beeping is driving me crazy.
If you hit the brake and keep the pedal depressed, then you only get the initial beep and then it goes away. The problem for me is I live north of Dallas so if I'm in traffic then I'm constantly hitting the brakes. I called my dealer today so I'll wait to hear what they have to say.
I have a 2008 F450. What may be going on with my truck. In the past the truck would blow the fuse for the door locks. Currently the display is showing wiring fault with no trailer attached, the horn is not working and the cruise control has stopped working. I've covered the basics and checked all relays and fuses and haven't found a faulty one yet. I'm thinking bad ground or possibly bad GEM module???? I've read and read topics and am more confused as to what it could be now than when I started.
View 3 RepliesI have a 1997 F150. I installed a trailer towing kit round 7 pin. I followed the instruction and replaced three different fuses after installation. The passenger side turn signal will not work. I replaced the bulb. The brake light works and the bulb is on when the lights are on it just will not blink. When the turnsignal is on it clicks very quickly.
View 4 RepliesI've got an intermittent Trailer Wiring Error message that started appearing with a trailer connected on my '11 F250.
Brakes and lights work OK on the trailer, I thought I had read on the board here that there was a TSB for this, but I cannot find it.
Need a wire diagram. I have a connector in the cab that has red,blue,lt green,white wires. It's causing my brake lights not to work. I need a wire diagram that shows were they go. I can't find these wires in my Haynes manual.
View 3 RepliesInstallion of hitch and trailer wiring on a 2015 PIP?
I found ZERO posts about installing a Curt 11276 hitch on a 2015 PIP. Or installing ANY OTHER hitch on a 2015 PIP.
Same applies to adding wiring for towing a trailer behind a 2015 PIP.
I need to wire up a trailer lighting connector for my 2000 Buick Century but I can't find the wiring run for it. Where would I find them to be able to tap into them?
View 3 RepliesSo on our trip up here I experienced a strange problem. Normally when I apply my brakes my trailer brakes kick in via the controller. This time when I apply the brakes I'm only getting my truck brakes. I can still use the brake controller manually to slow down but it's worrying. What is going on.
View 7 RepliesWe just bought a 2013 Casita 17' camping trailer, which has Dexter electric brakes. The OEM brake controller in the Expy recognizes the trailer, and the electronic gain adjustment seems to work. But it does not actuate the brakes. I checked the terminal on the 7-wire connector, and the blue wire that feeds that terminal, and there is no current when we press the brake pedal. So the problem would appear to be with the Expy and not with the trailer.
I am not getting an error message on the Information Display, which the manual says I should if there is an interrupt or short. I checked the 30A fuse for the line and it looks OK, as does the fuse for the controller. So what's the problem?
The previous owner never used the electric brakes; he was actually unaware the trailer had them. The Casita is light enough that he could tow it with a Nissan Frontier V6 pickup. I was worried that the drums might be rusted and/or the brakes inoperative after not being used for three years, but I took a wheel off and adjusted one, and it would adjust to the point where I couldn't turn the drum; then I backed it off a little. Besides, there's no current at the terminal on the Expy!
It just came on when I ran up to the gas station followed by the airbag light and the traction control light.. truck ran fine. I've tried looking this up found some people have had this message and there truck won't start.
View 6 Replies