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When adding a trailer hitch to a modern car, the biggest risk is overloading the factory electrical system. Most vehicle tail light circuits are designed only to power the car's own bulbs; adding trailer lights can blow fuses or, worse, fry expensive computer modules. The is the industry standard for preventing these issues. How It Works: The "Direct Power" Advantage

: It uses the battery connection to provide the actual amperage needed to light up the trailer.

: The ModuLite module is typically mounted inside the trunk or behind a tail light panel using double-sided tape. 118151

: Works with 2-wire, 3-wire, and PWM (Pulse Width Modulation) systems found on many European and late-model domestic vehicles.

The identifier most commonly refers to the Tekonsha ModuLite Installation Wiring Kit Go to product viewer dialog for this item. When adding a trailer hitch to a modern

, a crucial component for safely connecting trailer lighting to a vehicle's electrical system.

According to user feedback and technical guides at etrailer , the installation is straightforward but requires routing a power wire from the trunk/rear of the car to the battery in the engine bay. How It Works: The "Direct Power" Advantage :

💡 Always use a circuit tester to verify your vehicle’s wiring before splicing to ensure you are tapping into the correct brake and turn signal leads. ModuLite Installation Wiring Kit - Tekonsha - etrailer.com