Rear differential lock circuit for Buick Rendezvous I (2001-2007)

14 27 AWD CTRL CLASS 2 3.4L 3.6L 74 58 AWD CTRL CLASS 2 AWD FUSE 30 BLK WIRE BODY CONTROL MODULE (IN CONSOLE, ABOVE FUSE BLOCK, IN CENTER CONSOLE) BRN/WHT WIRE CLASS 2 DIFFERENTIAL CLUTCH PUMP ACTUATOR CHECK VALVE DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROL MODULE (ECM) GRN WIRE HOT IN RUN OR START I/P SWITCH ASSEMBLY LT BLU WIRE LT GRN WIRE NAVIGATION SYSTEM PNK WIRE POWERTRAIN CONTROL MODULE (PCM) PPL PPL DATA LINK CONNECTOR (PARTIAL) (BELOW STEERING COLUMN) TCS MODC TRAC ON/OFF SWITCH TRANSMISSION CONTROL MODULE (TCM) (3.6L) (INSIDE AIR CLEANER ASSEMBLY) UNDERHOOD FUSE BLOCK (FRONT OF RIGHT WHEELHOUSE, ABOVE BATTERY) YEL WIRE