Towing electrical problems
Thread Starter
|
4th Gear
Joined: Jan 2023
Posts: 4
Likes: 0
Towing electrical problems
I have a 2019 f250 dot 6,2 gasser my problem is when I plug in a 7 pin tester into my truck outlet I get the following on my dash trailer connected, trailer disconnected, right turn signal fault check wiring, left turn signal fault check wiring and when I use the manual
lever on my break controller I get a trailer disconnected notice on my dash. Does anyone have any ideas. Also when I do connect to my travel trailer all my lights work but I don’t have any breaks and I get a trailer wiring fault notice on my dash.
lever on my break controller I get a trailer disconnected notice on my dash. Does anyone have any ideas. Also when I do connect to my travel trailer all my lights work but I don’t have any breaks and I get a trailer wiring fault notice on my dash.
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
First off, make sure the connection is clean and good at your seven pin. That is always the starter. Is this a new rig for you? Has it worked in the past? Most often notices like these are connection issues.
FTE Legend
Joined: Jul 2005
Posts: 65,938
Likes: 1,432
From: Millersville, MD
As you are using the "TESTER", I would first take the 7-pin on the truck apart and look for rust or crud buildup inside. If OK, use a voltmeter or 12v tester to check each of the pins for voltage. You may need help and have someone in the truck to select certain conditions. Maybe before you take anything apart look for blown fuses. Hope you have the owners manual to show you where the fuses would be. If you don't google your way to find out.
Fleet Mechanic
Joined: Jan 2023
Posts: 1,332
Likes: 449
Your truck is reading the very low load the tester creates and triggering the faults because it expects the trailer lights to draw more power. There are settings in the trailer module to select LED or standard lights on the trailer (I don't know if you can access these settings from the menus in your truck). If your trailer has LEDs it would be best to select this option.
Does your trailer have electric brakes? You can test the brake circuit by using a 12V tail light bulb and some test leads. Connect one lead to the frame and the other to the trailer brake pin in the trailer connector. Push the trailer brake lever and the light should slowly illuminate. The rate that it illuminates is related to the trailer brake gain setting.
Does your trailer have electric brakes? You can test the brake circuit by using a 12V tail light bulb and some test leads. Connect one lead to the frame and the other to the trailer brake pin in the trailer connector. Push the trailer brake lever and the light should slowly illuminate. The rate that it illuminates is related to the trailer brake gain setting.
Thread
Thread Starter
Forum
Replies
Last Post
pablues5
1968-Present E-Series Van/Cutaway/Chassis
4
Jun 3, 2015 05:57 AM
