First, lets make sure you have attached the brake controller wires to the correct tow package wires from under the dash on your 2008 GMC Yukon. The brake controller black goes to the red/black tow package wire to provide 12 volt power to the controller. White connects to white for ground.
The red brake control wire goes to the Yukon light blue/white wire. And the blue controller wire goes to the dark blue Yukon wire. If you see an Orange wire on the Yukon do not use it with the brake controller.
If... view full answer...
It sounds like a blown tow package fuse in your fuse block on your 2003 GMC Yukon XL. You will need to check the accessory fuse block under the hood of your vehicle. When you remove the cover of the fuse block there will be a legend on the underside of the cover that will show the location of the fuse.
If the fuse is blown you will then want to check the taillight wiring on your boat trailer for any pinched or frayed wires that could be shorting out on the trailer frame and causing the... view full answer...
It sounds like your brake pin has constant 12V power and it should not. You will need a circuit tester, such as the Cordless Circuit Tester, part # PTW2979, so you can check the voltage on the brake output pin on your 7-way connector. This pin should be at the 5 o' Clock position on your 7-way connector. My guess is when you test that connector you will find that it reads 12V, but it should not read anything if the brake controller is not activated. I have attached a diagram that shows... view full answer...
After talking to the manufacturer this problem can be caused by the Primus IQ part # TK90160 not being mounted level in the vehicle. They suggested to unplug the controller for approximately ten minutes , level the controller in the vehicle, clean your connection points, and re-install the controller. view full answer...
The first thing I would do is to use a circuit tester, like # PTW2993, to test the vehicle side trailer connector with no trailer connected. If your 2001 GMC Yukon has a factory installed 7-Way, test the pins in the 3 o'clock and 9 o'clock position. Have someone step on the brakes while testing the pins. The test light should show a signal. If it does not, then something is wrong with the wiring on the vehicle, and you will need to trace the wires back to look for any broken or loose connections.
If... view full answer...
The red wire of a brake controller like the Prodigy P3 part # 90195 will need 12 volts when the brakes are applied but it does not need to ground or anything when there isn't 12 volts present. view full answer...
Since the trailer brakes are working with another vehicle, the trailer wiring is eliminated as a source for the issue.
The first thing I would check is the adapter you are using. Trace the power wires for the trailer brakes back to the trailer connector to determine which terminal is the brake feed circuit. Once this is determined check the adapter to see if it is wired correctly to transfer the brake power from your vehicle to the trailer brakes. There are two different acceptable wiring... view full answer...
Let's begin with the basics. In order for a weight distribution system to work correctly, the existing vehicle suspension needs to be in good condition. Then, you'll need to ensure you have the correct system for the tongue weight of your trailer. To choose a weight distribution system, you'll need to first determine the fully loaded and ready to tow tongue weight of your trailer. To that figure, add the weight of any gear stowed in the cargo area of the SUV or truck bed behind the rear... view full answer...
You probably just have a blown tow package fuse on your 2001 GMC Yukon. Under the hood in the power distribution box there is a fuse labeled TRL L TRN. This is the fuse for the trailer left turn signal circuit. There are also fuses for the Stop lamp and CHMSL circuits that you can check. view full answer...
There is some accuracy to what you read on the forum. But no worries, we can provide a solution. You simply need the 7-Way Vehicle Power Adapter w/ Power Switch for Furrion RV Observation Camera, # FR87PR. This will resolve your connection issues between the Furrion Vision S Wireless RV Observation Camera System w/ Side Marker Light Cameras & 5" Screen, # FCE48TASL-05. It plugs directly into the 7-way connector on your 2021 GMC Yukon then to your trailer wiring, acting as a connector between... view full answer...
The Plug-In Wiring Adapter # 3015-P that you used to install the Tekonsha Primus IQ Brake Controller # TK90160 on your 2006 Sierra is indeed the same harness that is designed to work on the 2005 GMC Yukon. Unplugging the harness from the Sierra and then connecting it to the factory port on your Yukon, assuming it has the factory 7-Way connector, should be all that is needed to move the brake controller over to this vehicle.
After installing the controller, the display on the unit should... view full answer...
I am not sure if you are referring to your truck's own lights or the lights on a connected trailer but since you referenced 4-pole wiring harness products such as # 118384 I'll assume you're talking about the lights on the trailer misbehaving.
When a 4-pole harness exhibits weird behavior like what you're seeing often the cause is a simple one: a weak ground connection. Check your main trailer harnesses grounds, both the ground wire on the vehicle harness and the one on the trailer. You... view full answer...
Since the trailer brakes work with the manual override, it would seem that the problem is with the stop light switch circuit. This would be the red wire from the brake controller. It should be spliced to either a light blue or orange wire from your Yukon's brake controller harness. I recommend checking that connection to make sure it did not come loose and make sure the wire was not damaged at all.
The brake controller has power, so I do not think the fuse is the problem, but if you have... view full answer...
The Er display code means that there is an internal problem with the brake controller itself. That's typically not a great sign and usually means the controller needs to be replaced, but sometimes you can get lucky and just unplugging the controller and plugging it back it fixes the issue. view full answer...
The problem you are describing is normally associated with a ground problem, whether it is a weak ground or not connected securely to a clean, bare metal surface, or even a break in the ground wire, but since you said you tested the harness on your Yukon it sounds like the problem is with the vehicle.
You will want to make sure there is no sign of corrosion or dirt on the vehicle connector. Then you can use a circuit tester like part # PTW2993 and have someone run through all the functions... view full answer...
It is possible that the P2 is getting dirty on the inside. To clean the contacts you can fully apply the manual override and let it snap back into place several times. You might also inspect the connection on the red wire to make sure it is secure. If the controller is tilted or turned to one side that can also affect its performance. It could have been bumped on accident and a slight change can have a larger affect. view full answer...
The Draw-Tite # 5504 Activator and the # 3025-P vehicle specific brake controller wiring adapter would work just fine on your 2002 Yukon. You'd simply unplug the existing controller from the junction box located on the firewall behind the emergency brake pedal.
You might want to do some troubleshooting before replacing the controller, to ensure the problem isn't in the vehicle or trailer wiring, and not the brake controller itself. Use a # PTW2993 circuit tester on the black wire exiting... view full answer...
Sounds like your brake controller has gone bad and is backfeeding power onto the stoplight switch which is then activating the brake lights of your vehicle.
If you sever the red wire of the controller and then test the end connected to the brake controller and there is 12 volts there then you know the brake controller has shorted out and needs to be replaced. Otherwise the 12 volt power source wire (black) is shorting out to this circuit and would need to be fixed as well.
I attached... view full answer...
Since the right turn and brake lamp signal are carried on the same circuit, the problem is most likely in the vehicle wiring. Begin by using a circuit tester like # PTW2993 on the right turn/brake lamp pin in the 3:00 position on the 7-way. You should get signal on that pin when the brake pedal is pressed. If you don't, access the wiring harness behind the 7-way, and look for the green wire in the wire loom. Use the tester while the brake pedal's being pressed. If you see signal on the... view full answer...
I suspect that you have an internal error on your brake controller or a wiring issue. In order to test for an internal error you will want to sever the brake output wire from behind the controller and test for power. If there is power on this wire without the brake pedal depressed or the manual override applied then there is an internal error and it will need to be replaced.
In regards to the stop light switch wire, there should only be power here when the brake pedal is depressed. If... view full answer...
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