Buick LaCrosse II (2009-2013) Park brake system circuit

BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/BLK WIRE DK BLU/VIO WIRE FUSE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES LT BLU WIRE PARK BRAKE CONTROL SWITCH PARKING BRAKE CONTROL MODULE (BEHIND LEFT REAR WHEEL LINER) RED/VIO WIRE UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE WHT/DK BLU WIRE YEL WIRE YEL/RED WIRE