My apologies, I read your earlier post wrong. Have you looked through WDS at the wiring related to the trunk module (HKL, if I recall correctly) and the pump yet? If you need any reference pictures from someone with the comfort open/close, let me know; it's a long weekend and I may be pulling some trunk stuff apart anyway.
Black 2007 Alpina B7
Tension strut bushings
White 2007 Alpina B7
Supercharger clutch/bearings, replaced exhaust valve/pulled head, sunroof seal, 6000K angel eyes
Black 2002 BMW 745Li (sold)
KW v3's, blue angel eyes, 8000K headlights & HID fogs, rebuilt alternator & mounting bracket gasket, sunroof seal, CCVs, plugs, sway bar bushings, timing & valve cover gaskets, valve stem seals, guibo joint, mechatronic sealing sleeve, trans fluid, sanded headlights...