How to Power Scooter Lift on 2015 GMC Terrain

Question:

I would like to convert the four flat plug on my vehicle to power a scooter lift. The plug for the scooter lift has a red and black wire. I know the red is the positive side of the battery and the black is for the negative side of the battery. I know on the four flat plug, the white wire is the ground side of the battery. But which wire color is for the positive side of the battery. I think it’s the brown wire. But I was hoping your company can help me with which color wire is the positive side on the four flat plug that’s installed on my vehicle. Thanks

asked by: Antonio C

Expert Reply:

None of the wires on a 4-way are for the battery. Your standard 4-way uses Green for right turn/stop, yellow for left turn/stop, brown for running lights, and white for ground. This isn't designed to power a scooter lift and you would only have power when these functions are active.

To add power to your scooter lift I would add a 7-way to your 2015 GMC Terrain using the # ETBC7. This will give you dedicated 12V power at the connector. On your lift you can add a 7-way connector # PK12706 and run the 12V power to the 11:00 position and ground wire to the 5:00 position.

expert reply by: Robin H