How to How Trailer Taillights Get Wired Up

Question

Question:

I wired white to frame as a ground black to running lights and red to turn signals and break but now both sides flash with right or left turn signals? What am I doing wrong?

asked by: Zachary

0

Expert Reply:

Trailer wiring colors can vary from trailer to trailer so it's not a reliable way to wire up a trailer.

You will want to first determine which wire of each taillight signal carries the brighter and dimmer circuits. The dimmer of the two will be for the running lights and the brighter will be for the stop/turn circuit.

Next, you will want to use a circuit tester like part # PTW2993 to test all of the wires on the trailer as it is connected to a tow vehicle and all of the taillight circuits are applied. This will help you determine which wire does what and how it should be wired to you trailer.

expert reply by: Jameson C

0

click to enlarge

Jack C.

3/17/2020

I need both passenger and drivers side. does it matter what side I order?

Chris R.

3/18/2020

The only difference between the driver and passenger side assemblies is that the Driver's Side # STL9RB features a license plate light. So if you plan on mounting the trailer's plate beneath the light you'll want to make sure you order accordingly. The passenger side assembly is part # STL8RB.

Helpful Links

Trailer-Lights/Optronics/STL8RB.html

Trailer-Lights/Optronics/STL9RB.html

Answer 1

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

view full answer...

Answer 2

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

view full answer...

Answer 3

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

view full answer...

Answer 4

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

view full answer...

Answer 5

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

view full answer...

Answer 6

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

view full answer...

Answer 7

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

view full answer...

Answer 8

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

view full answer...

Answer 9

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

view full answer...

Answer 10

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

view full answer...

Answer 11

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

view full answer...

Answer 12

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

view full answer...

How to How Trailer Taillights Get Wired Up

Products Featured in This Question

Product Page this Question was Asked From

Featured Help Information

Miscellaneous Media

Continue Researching