No Power to Trailer Wiring Harness on a 2012 Lexus RX 350

Question

Question:

118252 harness connect to 2012 RX350, but dont have a power. It is any fuse some wear ?

asked by: Mikhail

1

Helpful Expert Reply:

The trailer wiring harness # 118252 is designed to fit a 2012 Lexus RX 350 that came with the factory tow package. If your RX 350 did not come with the factory tow package then harness will not work. If you are unsure if your model has the factory tow package you can have a Lexus dealer run the VIN in their system and tell you how the vehicle is equipped.

There are fuses if the vehicle has the factory tow package. under the hood in locations 43 and 44, and in the cab of the vehicle in location 22 is where you will find the fuses related to the tow package wiring.

If it turns out that you do not have the factory tow package you will need a different wiring harness, # 118478.

expert reply by: Michael H

1

Answer 1

I'm not sure what wiring you purchased but if it's anything like the Curt T-Connector #C56217 for a 2021 Lexus RX 350 without the tow package then the system should be working once you get the module and fuse installed. If you aren't…

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Answer 2

Aside from what you already found, the best advice I can offer comes from another customer who installed the #118255 on an RX 350. On the inside corner cover, pry up the center of the black plastic fastener and remove it. Reach under the cover with…

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Answer 3

If your 2017 Lexus RX 350 didn't come with the factory tow package then an additional harness with a powered converter is needed to actually activate the plug that you used to install the Tekonsha T-One Vehicle Wiring Harness #118252. This…

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Answer 4

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 5

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 6

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Answer 7

Hi David! There are quite a few hitches offered for your 2026 Honda Odyssey, so I definitely understand wanting to know the differences. There are basically three styles available for you and I have them broken out below: Exposed Crosstube: etrailer…

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Answer 8

Hey Ricardo! Yes, the Curt Trailer Hitch Receiver #C82RJ is the hitch Curt is working on for the new 2027 Telluride. This is a pre-order since Curt hasn't finished the design. It does not include wiring. The wiring harness for the 2027 is also up…

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Answer 9

Hi John! We definitely have hitches available for your 2026 Lexus RX350h and the etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2" #e29ZV is a great option. The matte finish makes our hitches blend in better than…

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No Power to Trailer Wiring Harness on a 2012 Lexus RX 350

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