How to Determine the Tail Light Wire Functions on a Vehicle

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Question:

how can i understand wires in cars and their functions

asked by: Kiyingi K

0

Expert Reply:

The only way to know for sure what a wire does on a vehicle is to test it with a circuit tester such as # PTW2993. This is because there is no standard for wire color and function and vehicle manufacturers use whatever color they have on hand. Testing the wires is the only way to know their functions. I have linked a video showing how the tester works.

expert reply by: Michael H

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Answer 1

For your 2013 Smart fortwo, I will walk though the parts listed to confirm fits and compatibility to assist. The Blue Ox base plates #BX1987 is a confirmed fit and will work well with the Blue Ox Alpha Tow Bar - Motorhome Mount - 6,500 lbs #BX7380…

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Answer 2

You can absolutely flat tow a 2008 Smart ForTwo. I recommend starting with the Roadmaster EZ Base Plate Kit - Removable Arms #52285-1 and then using the Roadmaster Falcon 2 Tow Bar #RM-520. Then I recommend the Roadmaster safety cables #RM-643. You…

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Answer 3

The MORryde Manual Storage Reel #MR47RR has a lot of parts that are involved in the handle assembly. I have added a picture to help see the order. First onto the machined drum piece you will slide 2 white plastic washers. Then there are 3 wave…

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Answer 4

Both the Roadmaster and Blue Ox tow bars are great options. But if it was my decision to make I would go with the Blue Ox Avail part #BX7420 as we have found that the Blue Ox tow bars are a little easier to connect and disconnect from. Also this tow…

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Answer 5

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…

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Answer 6

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…

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Answer 7

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.

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Answer 8

Gladly! The difference between the Blue Ox Patriot 3 Radio Frequency, Portable Braking System BRK2019 and the Blue Ox Patriot Radio Frequency, Portable Braking System #BLU37TR is that the Blue Ox Patriot 3 RBRK2019 is older, no longer available, and…

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Answer 9

Hey Steve, thanks for reaching out! The Roadmaster Direct-Connect Base Plate Kit #RM87NQ fits your 2025 Ford Maverick as long as it's the Hybrid model that doesn't have the engine block heater. It doesn't come with the 6-Pin connector,…

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Answer 10

When it comes to choosing between the Blue Ox Patriot #BLU37TR and the Brake Buddy Select 3 #HM39524, these systems are extremely similar in their setup and functionality. Both of these systems provide proportional braking in a compact and easy to…

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Answer 11

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.…

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Answer 12

Hey Jim; the Curt RVibrake Shadow 2 #RVI94FR is not compatible with your 2026 Maverick. Initially it was listed as a fit but Curt/Lippert came out with an exclusion list that includes the Maverick Hybrid. Right now it is listed as 2022-2025 but it…

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How to Determine the Tail Light Wire Functions on a Vehicle

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