Why is my trailer not getting any power?
If you aren’t getting any power on the wires going into the connector, then the connector itself isn’t the issue. There’s something going on with the factory trailer wiring. Since all the fuses are good there’s likely a short somewhere on the wiring.
Why does my GMC Duramax have no power to trailer?
Turned out that upon closer inspection the 40A fuse for Stud#1 was blown. It looked fine from the top but when I pulled it out it was no good. If it is hooked up and did blow a fuse it would be one of the square ones furthest inboard that protects the #1 post. Your slide must have overloaded the fuse. Mine is a 40 amp if I remember correctly.
Is there constant 12V power for 7pin trailer plug?
I just purchased a product called White Night. They are rear facing lights that mount over the trailer hitch which plug into the factory 7 pin connector. While installing this I found out that from the factory the 7pin connector does not have the constant 12v connected.
Why does my trailer have no power to stud 2?
Stud 2 on my truck is what the trailer shop said to use but it has no power and I don’t know why. Fuse seems fine, correct fuse spot according to fuse diagram, power to both sides of fuse, but no power to Stud 2. I can use Stud 1 for the trailer but it bugs me that there is a stud that apparently should have power and doesn’t.
Why is my 7 way trailer not connected?
It can sense when a trailer is connected based on the voltage draw so it won’t sent a signal for 12V when using some testers, especially LED testers because there isn’t enough of a power draw. The system requires a power draw on the 7-way and then holding the brake pedal for about 3 seconds until your dash registers “trailer connected”.
If you aren’t getting any power on the wires going into the connector, then the connector itself isn’t the issue. There’s something going on with the factory trailer wiring. Since all the fuses are good there’s likely a short somewhere on the wiring.
Turned out that upon closer inspection the 40A fuse for Stud#1 was blown. It looked fine from the top but when I pulled it out it was no good. If it is hooked up and did blow a fuse it would be one of the square ones furthest inboard that protects the #1 post. Your slide must have overloaded the fuse. Mine is a 40 amp if I remember correctly.
Stud 2 on my truck is what the trailer shop said to use but it has no power and I don’t know why. Fuse seems fine, correct fuse spot according to fuse diagram, power to both sides of fuse, but no power to Stud 2. I can use Stud 1 for the trailer but it bugs me that there is a stud that apparently should have power and doesn’t.
How to troubleshoot no power at the factory plug?
Next, test the pins on the connector where the wiring harness plugs into the truck using a circuit tester like Item # 40376. This will tell you if the problem is on the wiring harness or somewhere deeper in the truck’s wiring. If everything checks out with the pins then the problem is on the harness and it can be replaced with Item # 30955.
What to do if your truck doesn’t show power?
If everything checks out with the pins then the problem is on the harness and it can be replaced with Item # 30955. If you are not showing power on that connector then you have a wiring issue somewhere in the truck that needs to be tracked down by inspecting the wiring and seeing if you have something pinched, broken, or disconnected.
How to diagnose and fix trailer light issues fast?
How to diagnose and FIX trailer light issues FAST! Demonstrated using the Power Probe 3 tester – YouTube If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.
What do you mean when you say no power to your trailer plug?
You say no power for anything so I assume no turn signals or running lights. Are you testing at the plug with your test light? This is where you should start. Connect your test light to a good ground source, a clean, not rusted bolt head will work.
How can I get power to my trailer plug?
This is where you should start. Connect your test light to a good ground source, a clean, not rusted bolt head will work. Now turn on the emergency flashers and parking lights. Solid on Pin 3 and since you say you have the 12v feed connected under the hood then pin 4 should be light as well.
Where are the trailer lights on my truck?
My truck has also has fuses for trailer lights in the fuse panel on the left side of the dash near the door jam. A bad ground will also drive you nuts when it come to wiring. Hope you can get it figured out.
Next, test the pins on the connector where the wiring harness plugs into the truck using a circuit tester like Item # 40376. This will tell you if the problem is on the wiring harness or somewhere deeper in the truck’s wiring. If everything checks out with the pins then the problem is on the harness and it can be replaced with Item # 30955.
Why do my lights keep going off on my trailer?
If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground. Running jumper wires from the light grounds to the main trailer connector ground can help.
What should I do with my running lights on my trailer?
The light grounds should also be attached to clean and corrosion free bare metal surfaces. If there is anything between a light ground and the metal trailer frame or if the trailer has an aluminum frame, tilt bed, or folding tongue, any of these things can interrupt the ground.
Is there no power to my trailer when I plug in wire harness?
No power to my trailer when I plug in wire harness? Truck is a Ford F150, 2012, 4X4, crew cab. Have Ford questions? Ask a mechanic for answers ASAP
Where is the no power in trailer connector?
I have no power at the plug in the rear of the vehicle. I have connected the red power cable to the stud and there is a 40 amp fuse in. I have power at the stud and the fuse is good. The wire all the way back to the plug seems to be good but still no power.
Is there a problem with the trailer plug?
I tow a 5th wheel in the summer and have never noticed a problem with my truck charging the trailer bateries, but today when I went to wire in some backup lights to my bumper, I went to find the 12 volt constant in the trailer plug harnes and I cant find any power.
Is the trailer plug constant on a diesel truck?
With the ECM on the truck looking at the drivers side battery… and a temp sensor under that battery and cutting back the charging voltage based on that temperature instead of battery state of charge this has been a problem…. of course on a cold winter day… where it stays under 45* or so… the ECM opens up and charges all the batteries….
Is there a trailer plug that says 12V?
Just pulled number 19 that says trailer tow it’s a square 30amp. Checked it with my meter and it’s all good. There is nothing that says aux just 12v ign misc. and that’s good too That should be the one. I would check the wiring before the 7 pin. Possibly have a bad wire.