DCC Decoder Light Help

We have 2 wires left and 1 pin. A white wire and a blue wire. Pin #7. We have only a front headlight.
Thanks
John

Hello John,

The white wire is the positive feed for the front headlight, and the blue wire is the common back to the decoder for the front and rear headlights.

You should have the white wire coming from pin 6, then to the headlight. The other lead from the headlight should be connected to the blue wire, which is in turn connected to pin 7.

Hope this helps,

Paul Schmidt
Contributing Editor
Trains.com