2-pin Side Marker Light Connector 2-pin Side Marker Light Connector Pigtail The pigtail is a small but important electronic component used in vehicle lighting systems.

Its functions are as follows:

Connects the side marker lights to the wiring harness:

Provides a secure electrical pigtail to provide a secure electrical connection between the vehicle's main wiring harness and the side marker lights

Two-wire configuration:

Pin 1: Power (usually from the headlight or running light power (usually from the parking light or running light circuit).

Pin 2: Ground (completes the circuit).

Ensures proper light function:

Side marker lights turn on with the vehicle lights - usually when the headlights or parking lights are on. Allows the side marker lights to turn on with the vehicle lights - usually when the headlights or parking lights are activated.

In some cases, the side markers may also flash with the turn signal lights (depending on the vehicle's wiring setup).