Finding the Cold Side of the Brake Light Switch in a 2017 Jeep Cherokee

Question

Question:

My 2017 Jeep Cherokee does not have a factory tow package. So far I installed 6927, 118605, ETDC7, 7894 and C13171. All I need to do is connect the red wire from brake controller to the brake pedal/light wire. Can you help me identify which wire? Color? I attached a picture of the harness where the brake pedal switch is. Thanks for the help.

asked by: Doug

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Expert Reply:

In your 2017 Jeep Cherokee Latitude, I unfortunately can't tell you which wire is the correct color for your brake controller, but I can tell you how to determine that. You will need to use a circuit tester like # PTW2993 and test each wire coming out of that switch. The correct wire will have no signal when the pedal is not pressed and the switch not engaged but will have signal when the pedal is pressed and the switch is engaged. That wire will need to be connected to the red wire of your pigtail # 7894. This is the white wire on many Jeeps, but you will need to test to confirm.

expert reply by: Jason S

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Answer 1

On the brake light relay, #RM-88400, the monitoring wire from the SMI Duo #SM99251 and the green wire from the relay attach to the brake switch wire on your 2017 Jeep Cherokee (unless it has push button start which I will cover next). Basically what…

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Answer 2

The newest Toyota Highlander we've installed a brake controller in is a 2014 model. I attached the install video to this page to show you the processs. The 2014 and 2018 Highlanders are the same generation though so what you see in the install…

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Answer 3

I did some checking and the brake light relay #RM-88400 is not required to flat tow the 2017 Jeep Cherokee though there may be circumstances where it is needed. I have included a link to the only video we have showing installation of the relay on a…

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Answer 4

We do not have a master cylinder repair kit for your older Atwood surge coupler but we can help you select a new coupler to match your trailer gross weight. The linked page displays both disc and drum brake surge couplers; just click on the type you…

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Answer 5

It could be a tow package fuse on the vehicle. Use the owners manual to find the locations of fuses/relays related to the tow package wiring to check them and replace as needed. If the issue is not a fuse or relay then you can test the vehicle side…

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Answer 6

Hey Dave, The Curt Custom Tail Light Wiring Kit for Towed Vehicles #C96JR would not be intertwined or interfere with the Blue Ox Patriot #BLU37TR. This wire harness is simply plugging into the motorhome and Gladiator tail lights to copy the light…

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Answer 7

What you are describing is normally the result one 1 of 3 issues: First, there could be some corrosion in or on the connectors on the vehicle or trailer side or both. Second there could be a bad ground. Bad grounds can cause all sorts of bizarre…

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Answer 8

Your brake lights and turn signals for each side are on one circuit. The left side turn signal and brake light is generally the yellow wire going into your trailer connector. The first thing to do is check the fuses on your tow vehicle. Next, inspect…

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Answer 9

Testing lights on your trailer will require a 12V power source so if you are not going to plug in a connector like #H20046 you will need a separate 12V battery. Then use the negative post of the battery to attach your ground wire to and then and use…

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Answer 10

The 4-way on your trailer is what's known as a wishbone connector like part #A35W42B. Two of the wires are the running light circuit which is a little easier to install since you can run one down each side of the trailer. This way you don't…

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Answer 11

The easiest to use and highest quality base plate kit that fits your 2023 Jeep Gladiator is the Blue Ox part #BLU53FR which would work great with a tow bar like the #BX7420. We do have custom fit lighting solutions like the Curt part #C96JR that…

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Answer 12

The orange wire, see wiring diagram attached, is not used for the Roadmaster InvisiBrake Supplemental Braking System, RM-8700. Roadmaster added that wire when developing the braking system and found that it was not needed, so it is not used for…

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