Expert Answers about Chevrolet 12V Power Accessories

• Activating 12-Volt Trailer Accessory Circuit on 7-way Trailer Connector of 2009 GMC Sierra
• I'll assume you're doing some troubleshooting because the 12-v trailer accessory circuit at the trailer connector isn't functional. There are two wires near the fuse box under the hood that sometimes need to be connected in order to power up your brake controller and the 12-v accessory power circuit to the trailer connector. To the right of the fuse box, next to the fender there is a red wire with a ring terminal on the end. It connects to the left hand power stud on the front side of...
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• Troubleshooting Furrion Monitor Not Turning On
• Since the discontinued Furrion Digital Wireless Observation System FOS48TAPK-BL (similar to part # FOS43TASF) plugs into a 12V accessory outlet like what comes with the kit # RM-9332 you just need to make sure your 12V accessory outlet has power when using the system. If it isn't receiving power then there could be a broken fuse somewhere or there could be some wiring that is messed up on your vehicle/RV. You can also plug in a different accessory to make sure that it isn't the monitor...
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• No 12V Power or Running Lights on 7-Way Trailer Connector on 2004 Chevrolet Avalanche
• If the 7-way trailer connector on your 2004 Chevrolet Avalanche is part of a factory-installed tow package (if it is it should have a GM logo on it), then all wiring and fuses should be in place as part of the tow package. As you noted it is still possible that there may be fuses missing from the accessory fuse block in the engine compartment, or there may be blown fuses. It could also be that the wire lead for the 12V+ circuit is not connected at the fuse block. Please note that trailer...
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• Troubleshooting A Power Center Converter That Isn't Recharging The Battery
• Based on the information you provided it definitely sounds like the converter has an internal short and needs to be replaced. I'm unable to find any 500 model converters so I don't know exactly what the amperage rating is for your current converter. If you could send me some pictures of the stickers on your unit I would be able to determine the correct replacement. For example, the Progressive Dynamics RV Power Control Center with AC/DC Panel and Converter/Smart Charger - 60 Amp # PD4560K18LS8...
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• Troubleshooting 12 Volt Accessory Circuit on Trailer Circuit that Stopped Working
• Sounds like the fuse or relay that controls the 12 volt power circuit for your trailer wiring has gone out and needs replacing. Check the owners manual of your truck or the fuse diagram on the fuse panel to determine the location of that fuse/relay and replace as necessary. The easiest way to check a blown relay is to install a known working relay in it's place. If the circuit starts working at that point then you know it was the problem. The other possibility is that there is corrosion...
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• Location of Fuse for 12-V Accessory Power to Trailer Connector 2018 Dodge Ram 2500
• If your Ram has the factory tow package including the factory 7-way trailer connector at the rear bumper, that circuit should already be connected. The fuse protecting that should be in location F30 in the power distribution center (fuse box) under the hood near the battery. Insert if missing or replace if blown. It should be a pink 30A fuse.
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• Troubleshooting No 12V Power at Factory-Installed 7-Way on 2017 Toyota Sequoia
• Since your 7-way trailer connector on your 2017 Toyota Sequoia was factory-installed, all needed fuses, circuit breakers or wiring connections should have been completed either at the factory or at least by the dealership. The 12V auxiliary power feed on the 7-way will be fuse- or breaker-protected (usually a 40-amp). You might just double-check the fuses since the label or marking on the 12V feed could say different things. You are correct that the ignition key usually controls the 12V...
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• Would Powering the Prodigy RF Brake Controller From an Auxiliary Be a Good Idea
• The Prodigy RF part # TK94FR draw it's power from the 12 volt accessory circuit pin on it's 7-way. Powering if off of a battery isn't a great idea because if the battery goes dead on the trailer, no brakes. That should be enough of a deterrent considering what could happen if suddenly you had no trailer brakes! Also, as the power decreases on the trailer battery the brakes will fade and should the breakaway need to be activated there may not be enough power to stop the runaway trailer. The...
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• Activating 7-Way 12 Volt Power Circuit of 2004 Chevy Express Van
• There's a connection under the hood of your 2004 Chevy Express Van that needs to be made to allow the 12 volt accessory circuit work on your 7-way. If you check out the install video and help article I attached you can see how to make these connections.
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• Furrion Vision S Wireless Monitor Doesnt Turn On
• The Monitor for your Furrion Vision S wireless Rv Backup Camera part # FOS43TASF is meant to come on as soon as it has a 12V power source. Some vehicles only power on the 12 volt accessory outlet when the vehicle is running; you want to check that fuse to see if it's blown, and if it's getting power. You can check the fuses with part # PTW2992, and test to see if the fuse gets power with the key off, in the run position, or vehicle running. Another item to check is the camera, you need...
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• Troubleshooting Electrical Problems On a 1997 Viking Pop-Up Camping Trailer
• It sounds to me as if you have a problem with the 12-volt power supply from the battery on the trailer or from the 12-volt source from your vehicle. Since your interior accessories are working when you are plugged into 120-volt power the interior wiring is ruled out and the problem is most likely before the 12-volt power enters the converter. First, check the ground connection at the trailer tongue. If this connection is not good, then numerous problems can pop up. Next, use a circuit...
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• 12-Volt Accessory Power Feed on 2008 Ford F250 is Not Charging Travel Trailer Battery
• In order to activate the 12-volt accessory power feed to the 7-way, there is a fuse and a relay that need to be installed in the fuse box under the hood. Your owners manual or the legend on the fuse box lid will show you the correct location. If the accessory circuit once worked in the past, check for a blown fuse or a bad relay. If the fuse and relay are already in place and are not faulty, please get back with me and will will look into some other less likely possibilities. Keep in...
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• Troubleshooting and Fuse Location for 12-Volt Trailer Feed on 2004 GMC Sierra
• The fuse that protects this circuit is located in the power distribution box located under the hood. The box can be found on the drivers side inside fender. Once the cover is removed, you will find two threaded studs on the motor side of the box. The front post should have the 12-volt feed to the trailer connector installed on it. If it is not, the lead can be found between the distribution box and the cab or under the brake booster. Remove the tape bundling it, run the wire to the post,...
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• Why Does Curt Wiring for a 2014 Nissan Rogue Have to Run to Vehicle Battery
• The reason you want to run the power wire all the way up to battery is so that you bypass all of the delicate wiring of your vehicle. The power wire is required on trailer wiring harnesses for some vehicles because the electrical system on those vehicles cannot handle the amperage draw associated with trailer lights. If you ran the wire to a 12 volt accessory circuit this would defeat the purpose of that and would void the warranty of the harness plus potentially damage your vehicle wiring. I...
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• Troubleshooting No Power on 12 Volt Accessory Circuit of 7-Way 2012 Dodge Ram 2500
• The 12 volt accessory circuit isn't always active on vehicle 7-ways we've found. Not every towing setup requires this circuit so sometimes it's just left inactive. The easiest way to activate it though is to use a length of 10 gauge wire like part # 10-1-1 (sold by foot) through a breaker like part # 9510 to the positive post of your truck battery and it will be active.
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• No Power to 7-Way 12 Volt Pin on 2019 Ford F-150
• The battery charge line circuit or twelve volt power within the trailer connector is only active while moving on most newer Ford trucks. This is by design and has been coined the "Ford Smart Tow". It's done to conserve power of the vehicles battery so it's not just charging the trailer battery at all times even when not needed. I understand this frustrates a lot of owners as it causes problems for certain accessories and a lot of head scratching. There isn't a way to get around this other...
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• Monitor for Furrion FOS43TASF Observation Camera System Not Getting Power
• If you're not seeing the blue LED on the monitor, it means that it's not getting power. You can use a circuit tester like # PTW2993 on the 12-V accessory socket to make sure it's getting power. If it's not, check the fuse for the 12-V outlet and replace. If the socket is getting power, the fuse in the plug itself is likely blown. Unscrew the metal tip of the plug as shown in the photo and check the fuse. You might not be able to visually confirm if it's blown, so it's not a bad idea to...
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• Troubleshooting Curt Echo Mobile Not Active Installed on 2011 Chevy Silverado
• Under the hood of your 2011 Chevy Silverado there's a few connections that need to be made for the 12 volt accessory circuit of the 7-way to be active. If you check out the attached help article you can see how to make these connection.
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• 12 Volt Accessory 7-Way Circuit Fuse Location
• Under the hood of your 2005 Chevy Silverado there will be a 12 volt accessory circuit fuse that blew. I attached a picture for you to check out that shows exactly where the fuse will be.
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• How to Power Interior Lights of Converted Camper
• I recommend using a separate 12-volt battery installed on the trailer to provide power to the interior lights/fan. The 12-volt accessory power circuit can be used to provide a maintenance charge to this battery, but the alternator on the tow vehicle and the limited gauge of the wire feeding the circuit will prevent enough power from getting through to charge the battery if it becomes depleted. When alternative power is available, you can use a charger like the # NOCO Genius # 329-GENIUS5...
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