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Expert Answers about Powerbuilt

  • How to Test a 4-Way Trailer Wiring Harness Plug
  • You are testing correctly for the left and right turn signals, but the 3rd female plug you are testing is the taillight circuit. If you turn on the running lights you should get 12 volt power at the connection that the brown wire runs into. To test the brake lights at the trailer connector you need to apply the brakes and test the connectors that the green and yellow wires go into. These are the same connections that you tested for the turn signals. Trailer wiring combines the left...
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  • Trailer Lights Work But Brakes are Not Working
  • If you have a 7-Way on both your trailer and tow vehicle you will first want to make sure that you have a brake controller, like the Tekonsha Prodigy P3 # 90195. A brake controller is what is used to send power from the tow vehicle and tells the trailer how much braking power is needed. If you do not have one, just let me know what the year/make/model is of your tow vehicle and I will be happy to help you make sure you have the correct equipment. If you do already have a brake controller...
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  • How to Test Tow Package Wiring on 2018 Jeep Grand Cherokee Altitude for Functionality
  • It is easy enough to test your 2018 Jeep Grand Cherokee's factory wiring to confirm that it is functioning, even if you do not have a trailer handy. All you need is a simple and inexpensive circuit tester such as # ALL640595. All you need is the tester and preferably also a helper to assist by activating the various lighting functions on the GC while you have the tester applied to the appropriate pins on the 7-way or 4-pole wiring connector. Please see the linked video. Please refer...
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  • How to Troubleshoot Travel Trailer Running Lights Not working
  • Since your trailer is brand new I suggest a visit to the selling dealer or to another authorized service/repair center. Small parts such as light lenses are easy to replace and inexpensive, but troubleshooting the blown fuse problem is not. Finding and correcting this problem is the dealer's responsibility (if the problem is indeed on the trailer side) but if you cannot do that then I suggest you test the truck's wiring, without the trailer connected, to see if you can isolate the source...
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  • Troubleshooting the N.C. Error Code on the Tekonsha Prodigy Trailer Brake Controller
  • There are basically 3 possible causes leading to the brake controller to read that it is not connected to the trailer even if the trailer is connected. Since it shows the code with the trailer connected, it could be a short or open circuit on the brake output wire. There could be a missed connection or a bad ground causing the circuit to not be complete. Though the problem could be on the trailer side, checking the wiring on the vehicle is also a good idea. Turn on the vehicle and have...
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  • Troubleshooting N.C. Error Message on Tekonsha Prodigy Electric Brake Controller
  • The N.C. error code on the Tekonsha Prodigy Brake Controller could be indicative of several problems or a combination of problems. Since it shows the code with the trailer connected, it could be a short or open circuit on the brake output wire. There could be a missed connection or a bad ground causing the circuit to not be complete. Though the problem is most likely on the trailer side, checking the wiring on the truck is also a good idea. Turn on the truck and have someone sit in it...
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  • Location of Brake Controller Fuse on a 2001 Chevy Silverado
  • Under the hood of your 2001 Chevy Silverado, remove the cover on the power distribution box. If standing in front of the truck facing the motor, the brake controller fuse will be that last large one in the back left corner, see picture. But the brake controller fuse does not have anything to do with the trailer lights though. You will need to check the other tow package fuses, using the owners manual to locate them, to see if any of them are blown. There is likely an issue with the...
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  • Turn Signals and Brake Lights Do Not Work on Trailer Towed with Ford F-350
  • The best way to determine if the issue is indeed on the truck is to use a circuit tester like part # ALL640595 and test each individual pin on the connector as its function is activated. First you will want to clean the connector and make sure there is no corrosion on the pins. You may also need to remove the wires from the connector as corrosion can build up in the connector. If all of the connection points are corrosion free, then begin testing the pins or the wires themselves. If...
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  • How to Terminate Power to the Trailer Brakes When Towing
  • There are several ways that you can cut off the power to your trailer brakes. The easiest option would be to simply unplug your brake controller. If the brake controller is disconnected, the brakes will not receive power. If your brake controller was hardwired and cannot be unplugged, you could cut the brake output wire anywhere between the brake controller and the trailer brakes. The brake output wire is the blue wire coming from the brake controller. This wire color may be different...
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  • Troubleshooting Trailer Wiring on 2014 Dodge Ram 1500
  • It would be unusual for all three relays in your 2014 Dodge Ram 1500 (or any other vehicle) to all go bad at once. If this did happen I would suspect the vehicle or trailer wiring/connectors. It is possible for internal corrosion to build up that could cause a short-circuit. This can occur on the visible parts of the sockets or plugs but it can also develop on the inside of these connectors, where it is very hard to spot. With enough exposure to the elements the trailer socket or plug could...
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  • How to Grease the Bearings on My Trailer
  • Greasing the bearings is actually a fairly easy process. It does take a little bit of time to complete, but after you are done you won't have to worry about greasing the bearings again for a few years. I do have some recommendations to help make this process a bit easier for you. When it comes to packing the bearings with grease you do have a few different options. You can either do it by hand or you can use a grease packer. Although doing it by hand is definitely the most cost efficient...
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  • How to Activate 12V Trailer Power Circuit on 2017 Ford F-350 Super Duty
  • Ford service bulletin SSM 46257 for the 2017 F-350 indicates that the vehicles equipped with a factory trailer brake controller (TBC) utilize a trailer module (TRM) which initiates the trailer 12V charging system. For trailer charging circuit to operate, the TRM must detect a trailer is connected and a brake pedal input before charging power will be present at the trailer connector. Some trailer simulator products may not work correctly in all situations so connect your trailer, apply...
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  • Fifth Wheel Trailer Brakes Not Braking Enough with Controller Turned Up All the Way
  • Ideally, the trailer brakes would be braking in such as way as you cannot tell they are braking but I do not think that is the issue here. It sounds like there may be some voltage loss somewhere. With the controller output set up correctly and the brakes adjusted, you can check a few other things to determine where the problem is. Start by severing the blue wiring from the back of the controller a few inches. Use a circuit tester like # ALL640595 if needed to test the end coming from...
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  • How to Locate the Reverse Light Wire on the Back of a 2017 Toyota Highlander
  • The wiring harness for your taillights located in the rear hatch is ran at the top of the vehicle under the headliner. Therefore, the easiest way to access the reverse light circuit would involve tapping into the wire loom at the top of the hatch before it is hidden under the headliner. You should be connecting to a red wire for the reverse light circuit. You will want to use a circuit tester such as part # ALL640595 to be sure. The best way to access the reverse light circuit is by...
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  • Prodigy Brake Controller Only Shows n.c Code after Charging the Vehicle Battery
  • There are certainly a few troubleshooting steps that we can try that will tell us where the issue lies. Changing or charging a vehicle battery with the brake controller connected can cause different and random issues. It could be possible that something in the brake controller was damaged during the charging process if the battery cables were still attached to the battery. The first step that we will want to take is to reset the brake controller. This is done by simply unplugging the...
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  • Recommended Methods to Test Brake Controller Output on Chevrolet Truck
  • Since you have a Chevy factory integrated controller you can use a circuit tester like # ALL640595 to test the brake circuit pin on your 7-way. The linked photo shows the functions on each pin on a standard 7-way installation and the arrows indicate where to ground the tester (7-o-clock position) and where to apply the tester's probe (5-o-clock position). Have a helper press the manual override on the controller while you test for the output signal on the 7-way. You can test the...
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  • Locating and Repairing Poor Ground Connection Causing Turn Signals to Flash Together
  • As you suspected, you have a poor ground connection at some point. It is important to have a continuous ground connection from the tow vehicle, to the trailer and continuing on to the trailer lights. The trailer connector on your F150 needs to be grounded to clean metal. The connector on the trailer will be grounded to the trailer frame, usually on the trailer tongue. Make sure this connection is clean and free of corrosion. The trailer lights will receive their ground connection either...
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  • Troubleshooting Trailer 7-Way Wiring With Constant Power on Lighting Circuit
  • Often when a trailer harness lighting circuit stays on continuously, even when the vehicle lights are okay and function correctly, the issue is corrosion inside the vehicle socket or the trailer plug that allows the 12V auxiliary power signal to bleed over to that other light circuit. On a 7-way wiring setup the 12V power circuit is carried on the pin at the 1-o-clock position as you view the socket on the vehicle. Please refer to the linked photo. Just next to this pin, at the 3-o-clock...
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  • Torque Settings For Wheel Lug Nuts For Boat Trailer And utility Trailer
  • I have attached a chart you can check out that describes the torque needed per wheel size, wheel stud size and material. For an 8-inch wheel with a 1/2-inch wheel stud the torque is 75 to 86 ft-lbs. For a 15 inch steel wheel with 1/2 inch wheel studs the torque is 90 to 120 ft-lbs and if you have an aluminum wheel the torque needed is 90 to 100 ft-lbs. If you do not have a torque wrench I recommend the Powerbuilt Dual Drive Torque Wrench, part # ALL944001. This has 3/8 and 1/2...
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  • Trailer Blinker and Turn Signals Only Work on One Side
  • Since it sounds like you were trying to match up colors during your install I believe you are correct that you wired it incorrectly. Although there are common wiring colors, there are no rules saying that everything has to be wired using any specific colors. This goes for both vehicle and trailer side. If you connect wire colors instead of checking their functions you could end up with an incorrect wiring system. What I recommend doing is using a Circuit Tester # ALL640595 to test the...
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  • Both Trailer Turn Signals Blink when Running Lights Are on and Turn Signals Engaged
  • This does sound like a ground problem. If it only happens when the running lights are in it indicates a ground issue because ground problems normally show up when there is more of a load on the system. First, make sure that the main ground from the trailer plug is attached to a clean and corrosion free bare metal surface. Next, go back to the lights. Most trailer lights ground through the mounting studs if there is not an obvious ground wire. In either case, the grounds have to be attached...
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  • What is the Correct Way to Jack Up a Boat Trailer to Change a Tire
  • It is not recommend to jack up a trailer by the axle. This may cause damage to the axle itself. It also puts too much stress on the leaf springs. Instead, you will want to place the jack under part of the trailer frame preferably next to the leaf spring hangers. This will give you more room to use a jack like the Powerbuilt Unijack part # ALL620470 which has a 4,000 lb capacity and offer up to an 18-3/8" lift. The jack also has a built in stand for safety as most jacks are not designed...
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  • Trailer Brakes Work Fine when Testing Parked but Brake Controller Work Intermittently when Moving
  • I think you are on the right track with the ground. When there is intermittent function like this it is almost always a ground issue. When traveling there is a certain degree of bending and flexing on the trailer that would be difficult to simulate at home. There are some tests you can perform at home to determine where the issue is. And you should not have to spend any money to perform these tests. In the truck cab you will need to sever the blue wire several inches from the back of...
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  • Troubleshooting Trailer Brakes that Engage when Headlights are Turned On, 2000 Chevy Silverado
  • It sounds to me like you may have a brake controller wiring harness that is pinned out improperly. Check out the pins in the port under your dash with a circuit tester, item # ALL640595 if needed. The middle right pin should be hot at all times, the bottom right pin should go hot when the brakes are pressed the top right pin is the trailer brake feed circuit and the bottom left pin will be the ground wire. Now looking at your brake controller connector as if you were ready to plug it...
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  • Trailer Brakes Clicking and Battery is Drained Using Tekonsha Prodigy Trailer Brake Controller
  • The clicking from the brakes on the trailer that you hear is happening because there is some power going back to them. Unplugging the trailer connector will stop this from happening. A brake controller like the Prodigy does send power back to determine if a trailer is connected. To determine if it is sending back too much power you can test the output blue wire on the back of the controller using a circuit tester like # ALL640595 if needed. If it is sending back the full power it...
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  • Troubleshooting Trailer Brake and Turn Signal Lights not Working, Towed by Ford F-350 Super Duty
  • If the problem is on the trailer side, you may need to check under the hood to determine if there is a fuse or relay missing or not working. You can use the vehicle owners manual to find the towing related fuses and relays. The load from the trailer may be sufficient enough power draw to shut down the tow package wiring on the truck if those fuses/relays are not in place. You can also check to make sure that the trailer tail lights are properly grounded to a clean and corrosion free...
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  • Troubleshooting Malfunctioning Integrated Brake Controller on a 2006 Ford Truck
  • The early integrated brake controllers, like on your 2006 model, were buggy and had a lot of problems. Most of our customers end up disconnecting them and installing a traditional brake controller. This will require a computer re-flash at your dealership. If not, the truck computer will still look for the factory brake controller and you will have a check engine light. It is not the 7-Way on your truck. If the 7-Way was the problem, you would not get voltage at the 5:00 pin when you manually...
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  • Troubleshooting Non-Functioning Right Trailer Turn Signal on 2014 Chevy Silverado 2500HD duramax
  • Since your truck's 7-way wiring is factory-installed there could simply be a bad fuse causing your right turn signal not to function. Check the power distribution box for any fuse/relay positions labeled trailer or tow and confirm the fuse/relay is not blown and that it is fully seated in the receptacle. Mini-fuse position 17 relates to right-side trailer turn lights. You can also test the wire leading to the 7-way pin with a tester like # ALL640595 to see if the signal is making it...
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  • Vehicle Blows Fuse When Trailer is Attached
  • I would agree that the problem appears to be on the vehicle side. Generally speaking, most of the time when a vehicle's fuse blows as a result from attaching a trailer, the cause is usually attributed to either the trailers lights exceeding the vehicle's trailer lighting circuit or there is a short somewhere along the wiring harness. If you have previously pulled the trailer with the vehicle in the past then I would lean towards a wiring issue but if you have never pulled this trailer before...
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  • Trailer Brake Controller Installation in 2017 Mercedes-Benz Sprinter 2500
  • There is no plug-and-play brake controller harness for the 2017 Mercedes-Benz Sprinter 2500 so brake controller installation will be a hard-wire process. Under the driver's seat there should be a green plug. The wires to this plug can be tested with a circuit tester like # ALL640595 to confirm their function since vehicle wire colors are not always consistent. A brake controller like the Prodigy P2 # 90885 has 4 wires that require connection to the Sprinter. The black wire is...
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