Buick LaCrosse I (2004-2009) Pass-key circuit

3.6L 3.8L BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) CLASS 2 DATA CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE DR/LCK TRUNK FUSE GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGNITION KEY INSTRUMENT PANEL CLUSTER (IPC) LOGIC LT GRN WIRE MESSAGE CENTER ORG/ WIRE READER/ EXCITER REFERENCE SECURITY INDICATOR SERVICE THEFT SYSTEM STARTING DISABLED THEFT DETERRENT EXCITER MODULE (PART OF IGNITION KEY CYLINDER) THEFT SYSTEM NOT PROGRAMMED TRANSPONDER VOLTAGE WHT WIRE