Brake Controller Installation on 2018 Toyota Tacoma

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Question:

Hello, I have a 2018 Tacoma TRD Off-Road 4x4 with the tow package. I purchased the Tekonsha P3 and wiring harness. Where do I plug in? I thought the location in the attached photo was for the harness but it does not fit the Tekonsha harness. Thanks

asked by: Wes C

0

Expert Reply:

Your photo shows the OBD-II connection. This port is used for vehicle error codes and diagnostics. If your 2018 Toyota Tacoma has a factory 7-way trailer connector, then the Tekonsha Custom Wiring Adapter for Trailer Brake Controllers - Dual Plug In # 3031-P will plug into a wiring harness found behind the plastic molding on the far left side under the driver's side dash. I've attached a photo to assist as well as the installation details for your Tacoma.

If you do not have the factory 7-way, then you will need to use the Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires # ETBC7 instead of the Tekonsha custom wiring harness to install your P3 # 90195. Another option is to use the Tekonsha OEM Replacement Vehicle Wiring Harness w Brake Controller Adapter - 7 Way Trailer Connector # 22117. This will wire right up to your P3 controller when installed.

expert reply by: Jason S

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Answer 1

Great news! I can help you find the brake controller harness on your truck. Since you have a factory tow package on your 2016 Toyota Tacoma you will have a plug for a brake controller in your dash. According to the instructions on the #3031-P harness…

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Answer 2

For starters, you are going to want to remove the three button panel to the right of the steering wheel and look for a white rectangular connector with four pins. If present this is present then we do have a plug-in option available for you in the…

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Answer 3

On a 2017 Toyota Tacoma the location to install the #3031-P is behind the kick panel to the left of your left foot. I attached a picture. You'll need to pull off the kick panel.

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Answer 4

The connector for the #3031-P Brake Controller wiring harness is located behind a panel just to the right of the steering column as shown in the linked install instructions, the video and the provided photo.

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Answer 5

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Answer 6

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Answer 8

So what your 2018 Tacoma seems to have is the factory tow package (assuming you did not add the parts aftermarket), and while a transmission cooler is not needed, a trailer brake controller is required if your travel trailer has electric brakes. If…

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Answer 9

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Answer 11

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Answer 12

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Brake Controller Installation on 2018 Toyota Tacoma

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