Hi Im having problem with my remote.When I use the remote to either unlock the doors or trunk,the courtesy lights stay on .To turn them off I have to relock the doors,then tey go off gradualy as usual.
I just spent the last two days trying to find the remote receiver.I have a wiring diagram that tell me it is at the base of RH A pillar,but I never found it.
I also had information that the chime module control the delay light turn off.
looks to me like the receiver should put a ground on the dark blue wire (same as door switches)to the chime module when it wants the light on so i think your on the right track. i dont have anything that says were it is unfortunately though