Is there no power to my trailer plug?

I have a 07 gmc sierra new body style and I have no power to my trailer plug …I have checked all the fuses in the fuses box under the hood and they are all good. Im wondering if there is any other fuses or circuit breakers in the truck that go to the trailer plug…

Can a Chevy Silverado tow without a brake controller?

Apparently, GM got a little smarter with their tow vehicles …. my 2015 Silverado 2500HD had 12V power at the trailer plug without doing anything and a brake controller is actually standard. Hook’em_Horns! It sucks that the brake controller and the 12V power is not ready for towing on these trucks….

Why does my Chevy Silverado have no power?

The wire all the way back to the plug seems to be good but still no power. Any suggestions would be great. Thanks. On your 2008 Chevy Silverado 2500, there could be several issues causing the plug to not have power. First, I included two pictures for reference below.

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.

Why is there no power at the factory plug?

If the fuses (and relays) are all good, then there has to be something with the factory wiring that’s cutting off power.

Where to plug in 12V trailer tow battery?

If yours are empty like mine were, go get two relays and plug them in. Then get a 30A Maxi Fuse and plug it into position 16 in the under hood fuse box. 16=Trailer Tow Battery Charge. This should give you power to your orange wire (switched 12v) on your 7 pin trailer harness.

How can I tell if my trailer has no power?

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. If these test ok but you have no lights with the trailer connected then you have a ground issue. A good test is to take a jumper cable and connect it between the truck frame and the trailer frame.

What causes no power in trailer connector pk11916?

On your 2008 Chevy Silverado 2500, there could be several issues causing the plug to not have power. First, I included two pictures for reference below. In the first one, you will see the fuse box opened with a red wire going to the silver stud. This is the power that goes to a brake controller.

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.

Do you need a tow package for a plug in harness?

Use correct plug-in harness for vehicles without a factory tow package, if available. Trailer lights worked when the harness was first installed, but eventually stopped working on one or all functions. Ground location for harness or trailer connector is weak or ground connection has loosened over time.

Why does my RV get no power when plugged in?

Sometimes your RV gets no power, even when it’s plugged into a shoreline power source. This could be because of any of the electrical components within your RV: the wires, outlets, circuit breakers, or transfer switch. You’ll have to test each component one by one to diagnose the issue.

Why is my truck not getting 12V power?

Since you are not getting the 12V power when your truck is running, you most likely don’t have a fuse issue as you stated their isn’t a specified fuse or relay in the owners manual. The issue is that your truck is computerized even at the 7-way.

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”.

What to do if your trailer has no power?

If they are clean or still no power after cleaning, I would check your grounding connections. Make sure your grounds are firmly connected to a clean, bare metal surface. Next, test the pins on the connector where the wiring harness plugs into the truck using a circuit tester like Item # 40376.

How can I tell if my trailer has 12V power?

At that point, the vehicle will deliver the 12V power to your trailer connector and not before. I recommend using a circuit tester like # PTW2993 to test for the 12V power once you get that “trailer connected” message on the dash.

Why are there no lights on my trailer?

When I hook up the trailer and connect the 7-pin adapter to 4 blade wiring harness, no lights, and the Infotainment System shows “No Trailer Detected”. Of cours 4 weeks later… 1 month later… my 2019 LTZ also didnt power lights at first. Even though the trailer brakes worked. Later it said that the trailer was disconnected.

Where can I get power to trailer lights?

From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Sounds like you need to find another dealer, or maybe escalate the problem to gm?

Is there a backup light for a tow hitch?

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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.

Why does my trailer light not show power?

Could the individual light grounds be causing a problem, they are attached to the mounting bolts for the lights. The light are not getting consistent power, one line shows power, the other is dead. Makes no sense, power at the plug, not at the lights, new wiring harness, no cuts anywhere, should be a smooth shot to the back of the trailer.

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.

Do you need 12 V out of trailer plug?

The 12 volt has to be hot because if not there the light in trailer does not work, also the break away pin that has a battery that has to be charged has to have 12 volts. Thank you so much. Do you have a link to the manufacturer’s site that shows how your particular trailer is wired right now?

How do you test a 7 pin trailer plug?

You can then move the red probe into the first light slot – let’s pick the middle right slot in the plug for the right brake light. Ask the person assisting you to then press on the brake light. If the pin wiring for that is working correctly you should see 12 volts appear on your screen.

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 is my 7 way trailer not sending 12V?

The issue is that your truck is computerized even at the 7-way. 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.

How do you connect a trailer to a 7-way?

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”. At that point, the vehicle will deliver the 12V power to your trailer connector and not before.

Where is the fuse on a 12 volt trailer?

If the 12-volt pin on your trailer connector isn’t working, you’ve got a missing or blown fuse or the wiring connection at the fuse box under the hood wasn’t finalized. You’re looking for a 40 amp fuse, located in position # 68 in the fuse box under the hood.

Which is fuse provides 12 volts to 7 way connector on 2009?

Simply uncoil the wire and attach it to the right hand stud on the fuse box. If all your fuses are good (you can check your owner’s manual for the 12V trailer charge fuse location) and wire connections under the hood are made then your best option would be just to run a new hot lead.

Where is the 12V fuse on a F-150?

That 12V power will be on the 1 o’clock pin location on the 7-way so the corresponding wire will need to be probed to test. I’m pretty sure the F-150 just has a blown fuse under the hood. Check your owner’s manual for the appropriate fuse locations tied to the trailer turn/brake lights and replace them to see if that resolves the issue. 70274

Is there no power to my trailer plug?