Collision System Malfunction Error Message on a 2017 Toyota Highlander Brake Controller Install
Question:
With respect to your video Trailer Brake Controller Installation - 2017 Toyota Highlander, didnt you get a Collision System Malfunction error message on the Highlanders Multi-Informational Display when you apply the manual switch on the brake controller?
asked by: Paul
Expert Reply:
The Collision System Malfunction error message that you are experiencing on your 2017 Toyota Highlander after installing the Tekonsha Primus IQ Trailer Brake Controller part # TK90160 is a result of power backfeeding on the stop light switch wire into the collision system. In order to eliminate this you are going to need to install a 1 amp diode on the red wire between the brake controller and vehicle's wiring harness. This will then prevent power from backfeeding and allow you to use the Primus on your vehicle without the error message.
Unfortunately, we do not carry the 1 amp diode you need so you would have to source this elsewhere.
Product Page this Question was Asked From
Tekonsha Primus IQ Trailer Brake Controller - 1 to 3 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 3 Axles
- LED Display
- Up to 90 Degrees
- Tekonsha
more information >
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