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Do I Need Diodes to Prevent Feedback from RV When Flat Towing


On a 2004 Chevrolet Malibu with adjustable pedals,do I need to install lighting diodoes to prevent feedback to invisibrake while not being towed


Helpful Expert Reply:

Technically no, you should not need diodes, though it will depend on the wiring harness you are using. Many wiring harnesses have built-in diodes.

If you are using a TrailerMate wiring harness you may need to install additional diodes. We have had trouble with their built-in diodes giving out.

If you are using a Bulb and Socket Set for Tail Light Wiring Kits like # RM-155-2, or a magnetic tow lights like # TL21RK, you won't have to worry about diodes because there won't be any feedback with these wiring kits.

Some wiring harnesses, like the Hopkins harnesses, like # 43105, have built in converters that prevent feedback.

I have included a FAQ article about wiring kits for towed vehicles.

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