The first thing you'll want to do is determine if the problem is with the new wiring harness on your 2008 Buick Enclave or on your trailer. Both sides of the tail and marker lights run on the brown wire. Since you have only one side working the problem is most likely with the trailer.
Use a circuit tester, like PTW2993, and test each contact on the new 4-pole connector. If they all pass, then check the wiring on your trailer. I would start by inspecting the trailer's connector, making... view full answer...
You may need a brake light relay # RM-88400 to keep the Buick Enclave brake signal from overriding the turn signal sent by your motorhome. The relay is needed on towed cars with combined lighting if you are using a supplemental braking system. Combined lighting means the vehicle has turn signals and brake lights on the same circuit.
To determine if a brake light relay is needed to properly wire your vehicle to be towed, answer the following questions.
Are you using a supplemental braking... view full answer...
Sorry to hear about this! I am guessing you are referring to the Curt Hitch - 2" # CU29FR. If this is the hitch you have installed, the most common issue with not being able to install the center hitch cover over the hitch results from not lining up the rest of the bumper correctly. Any little variation with how the bumper is attached to the rear of your vehicle can affect the fitment of that center piece.
The best route is to remove and re-install the bumper to ensure fitment. I went... view full answer...
There is always a possibility that the T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part # 118450 is faulty but I would say that 90% of the time this is not the case. For starters, you will need to inspect the pins inside of each connector that goes to the taillight to ensure they are not bent or broken. If they are then this is what is likely causing the short. If the pins are not bent/broken then I would begin to trace the left turn signal wire from the harness to the... view full answer...
Typically, because trailers use a combined system with brake lights and turn signals on the same circuit, when a turn signal works and the same side brake light does not, that is an indication of a ground problem. Basically, ground issues can appear when there is more load on a system. The brake light is a constant, bright light drawing power and can expose that weak ground.
The problem is finding the ground problem source. Start by disconnecting the trailer and making sure the vehicle... view full answer...
This sounds like a classic ground problem. A bad or weak ground will show up when there is more load on the system. That is why when you turn the vehicle lights on, the constant draw of the trailer running lights creates more of a load and the bad ground shows up.
There are some common places to check for a bad ground. First make sure all of the trailer lights and the main trailer connector are attached to clean and corrosion free bare metal surfaces. view full answer...
If you never had the 12V power on your 7-Way then there is likely a fuse that needs to be installed or replaced. It could also be that you need to connect some wiring under the hood of your 2008 Buick Enclave to your battery.
If your 7-Way has had 12V power previously then I recommend checking to see if a fuse or relay needs to be replaced and then removing the 7-Way connector and testing the pin for 12V power with a tester like part # PTW2992. If you get 12V power when you remove the... view full answer...
The relays should not be affected on the Tekonsha T-One Vehicle Wiring Harness # 118270 if the turn signal fuses were blown in your 2014 Buick Enclave. If the fuses are damaged, simply replacing them should solve the issue. It looks like the fuse for the left turn is in position F21 and the right turn fuse is in position F17. You can check to see if they are damaged and in need of replacement.
These should be available at any local auto parts store. view full answer...
Go To Results