Rear Turn Lamps Operation (liftgate closed)

WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.

When the liftgate is closed, the RGTM supplies a liftgate ajar ground signal to the liftgate mounted LH and RH rear turn lamps and to the auxiliary turn lamps.
When the liftgate mounted LH and RH rear lamps sense ground on the ajar signal circuit and voltage on the stoplamp circuit, the liftgate mounted turn lamps illuminate.
When the auxiliary turn lamps (part of the rear side marker lamps) sense ground on the ajar signal circuit and voltage on the turn lamp circuit, the auxiliary turn lamps do not illuminate.