Brake Controller Installation Instructions For 2008 Toyota Highlander

Updated 08/13/2014 | Published 08/11/2014

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Hook Probe Circuit Tester

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Question:

In wiring directions for brake controller it says to wire into non powered brake light wire. only lit during braking. What wire would I tap @ 7 pin vehicle connector for this purpose? I thought wire is shared with turn signal. I was told there was no plug and play Kit to connect to my brake controller on my 2008 highlander without factory trailer tow package. Thank you for your help

asked by: Jon H

Expert Reply:

I have attached a couple of drawings that show how the wires are routed when installing a brake controller, and how the wires are run from the 7-way connector on your 2008 Toyota Highlander.

I have also included a couple of helpful articles that explain brake controller installation and how to install a 7-way connector. You can check out the attached video that shows a brake controller installation on a Toyota Highlander. The year of the vehicle may be different from yours, but the installation will be similar.

When wiring in your vehicle I recommend using a circuit tester like part # PTW2993 to make sure you know what the function of the wires are as you complete your installation.

When working with electrical connectors I recommend using dielectric grease like part # 11755. This keeps dirt and moisture out of the electrical connectors and helps prevent corrosion.

expert reply by: Jeffrey L