Buick LaCrosse II (2009-2013) gry/yel Wiring diagrams

B(+) BLK WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/YEL WIRE BUS 4 COMPUTER DATA LINES SYSTEM DK BLU/GRY WIRE DK BLU/VIO WIRE DK GRN WIRE DOOR LOCKS SYSTEM DOWN DRIVER WINDOW MOTOR (DRIVER'S DOOR) EXPRESS FUSE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT REAR WINDOW MOTOR (LEFT REAR DOOR) LEFT REAR WINDOW SWITCH LF UP SIG LOCK OUT BUS 3 SWITCH LOGIC LOGIC DRIVER WINDOW SWITCH LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL LT GRN/BLK WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE NETWORK BUS 3 NETWORK BUS 4 PASSENGER WINDOW MOTOR (FRONT PASSENGER'S DOOR) PASSENGER WINDOW SWITCH RED/DK BLU WIRE RED/VIO WIRE RED/WHT WIRE RF DOWN SIG RF DR AJAR SW SIG RF EXPRESS SIG RF UP SIG RIGHT FRONT WINDOW B+ SWITCH RIGHT REAR WINDOW MOTOR (RIGHT REAR DOOR) RIGHT REAR WINDOW SWITCH RR DOWN CTRL RR UP CTRL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) UNLCK SIG VIO/GRY WIRE W/ MEMORY W/O MEMORY WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE

1 2 3 DISPLAY SIGNAL (-) DISPLAY SIGNAL (+) DRAIN WIRE ANTI-LOCK BRAKES SYSTEM BAT POS VOLT BLK WIRE BLK/GRY WIRE BRN WIRE BRN/DK GRN WIRE CAMERA SIG + MICROPHONE SIG (-) CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX DIMMING CTRL DIMMING CTRL CAMERA SIG 2 MICROPHONE SIG (+) DISPLAY SIG + DK BLU WIRE DK BLU/YEL WIRE DRAIN WIRE DRAIN WIRE NAV DISPLAY + RESET FUSE GROUND GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INFO DISPLAY MODULE (W/ NAVIGATION) INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/YEL WIRE NAV DISPLAY TOUCH - LF SPD SENS SIG NAV TOUCH + NAVIGATION ANTENNA NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE RADIO RADIO ANTENNA RADIO ANTENNA MODULE (BEHIND "C" PILLAR TRIM) RED/DK BLU WIRE RED/VIO WIRE REMOTE ENABLE RESET+ VIDEO SYSTEM CIRCUIT VIO WIRE VIO/BLK WIRE W/ DIGITAL AUDIO SYSTEM W/ REAR SEAT ENTERTAINMENT W/O DIGITAL AUDIO SYSTEM W/O W/ NAVIGATION NAVIGATION WHT WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE

1 2 8 VOICE SIGNAL LOW REF DRAIN WIRE 16 1 B+ SERIAL DATA 5149 5152 1792 (UYS) (UYS) (UYS) 5340 5060 COMPUTER DATA LINES SYSTEM 6 12 5 VOICE SIGNAL LOW REF DRAIN WIRE BLK WIRE BLK/GRY WIRE BLK/YEL WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA CENTER SIG CGI - COAX COMPUTER DATA LINES SYSTEM DRAIN WIRE GRN WIRE GRN/BLU WIRE GROUND GRY WIRE GRY/YEL WIRE LOGIC LT GRN/YEL WIRE NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE NETWORK 10 PPL RED/DK BLU WIRE RED/VIO WIRE RESET SIG TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE VIO WIRE W/ UYS W/O UYS YEL WIRE

1 2 3 DISPLAY SIGNAL (-) DISPLAY SIGNAL (+) DRAIN WIRE ANTI-LOCK BRAKES SYSTEM BAT POS VOLT BLK WIRE BLK/GRY WIRE BRN WIRE BRN/DK GRN WIRE CAMERA SIG + MICROPHONE SIG (-) CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA COAX DIMMING CTRL DIMMING CTRL CAMERA SIG 2 MICROPHONE SIG (+) DISPLAY SIG + DK BLU WIRE DK BLU/YEL WIRE DRAIN WIRE DRAIN WIRE NAV DISPLAY + RESET FUSE GROUND GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INFO DISPLAY MODULE (W/ NAVIGATION) INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE OF DASH) LOGIC LT GRN WIRE LT GRN/DK BLU WIRE LT GRN/YEL WIRE NAV DISPLAY TOUCH - LF SPD SENS SIG NAV TOUCH + NAVIGATION ANTENNA NAVIGATION ANTENNA SIGNAL SPLITTER NAVIGATION SYSTEM NCA WIRE RADIO RADIO ANTENNA RADIO ANTENNA MODULE (BEHIND "C" PILLAR TRIM) RED WIRE RED/DK BLU WIRE RED/VIO WIRE REMOTE ENABLE RESET+ VIDEO SYSTEM CIRCUIT VIO WIRE VIO/BLK WIRE W/ DIGITAL AUDIO SYSTEM W/ NAVIGATION W/ REAR SEAT ENTERTAINMENT W/O DIGITAL AUDIO SYSTEM W/O NAVIGATION WHT WIRE WHT/DK BLU WIRE WHT/LT GRN WIRE WHT/YEL WIRE YEL WIRE

1 2 8 VOICE SIGNAL LOW REF DRAIN WIRE 16 1 B+ SERIAL DATA 5149 5152 1792 (UYS) (UYS) (UYS) 5340 5060 COMPUTER DATA LINES SYSTEM 6 12 5 VOICE SIGNAL LOW REF DRAIN WIRE BLK WIRE BLK/GRY WIRE BLK/YEL WIRE CELLULAR PHONE NAVIGATION, DIGITAL RADIO ANTENNA CENTER SIG CGI - COAX COMPUTER DATA LINES SYSTEM DRAIN WIRE GRN WIRE GRN/BLU WIRE GROUND GRY WIRE GRY/YEL WIRE LOGIC LT GRN/YEL WIRE NAVIGATION ANTENNA SIGNAL SPLITTER NCA WIRE NETWORK 10 PPL RED WIRE RED/DK BLU WIRE RED/VIO WIRE RESET SIG TELEMATICS COMMUNICATIONS INTERFACE CONTROL MODULE VIO WIRE W/ UYS W/O UYS YEL WIRE

AJAR SW SIG 1 BATT POS VOLT BLK WIRE BODY CONTROL MODULE (BCM) (LEFT SIDE OF DASH) BRN/DK BLU WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/YEL WIRE EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH FUSE FUSE OF DASH) GRY WIRE GRY/YEL WIRE HANDLE SW OPEN SIG HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT SIDE MTR RELEASE CTRL PPL/WHT WIRE REAR COMPARTMENT LID LATCH (IN TRUNK LID) REAR COMPARTMENT LID UNLATCH RELAY RED/WHT WIRE SERIAL DATA VIO/GRY WIRE WHT WIRE YEL WIRE

1 25 26 12 DRAIN WIRE AUDIO SIG AUDIO SIG COMM SIG 34 37 35 36 PPL 5 4 VIDEO MODULE SIG VIDEO BRIGHT SIG 7 6 5 4 3 2 1 DRAIN WIRE AUX AUDIO LT SIG AUX AUDIO LT SIG AUDIO/VIDEO INPUT ADAPTER AUX VIDEO HI SIG BAT POS VOLT BATT POS VOLT BLK WIRE BLUNT CUT) BRIGHT SIG BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/GRY WIRE DK BLU/YEL WIRE DK GRN/WHT WIRE DRIVER SEATBACK VIDEO DISPLAY DVD VIDEO SIG (+) FUSE GRN/WHT WIRE GROUND GROUND PROVISION GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INFRARED RED AUDIO SIG WIRE LH DVD AUDIO SIG (+) LT BLU WIRE LT GRN WIRE LT GRN/DK BLU WIRE MODE 2 SIG NCA WIRE ORG/BLK WIRE ORG/BLU WIRE PASSENGER SEATBACK VIDEO DISPLAY PNK/BLK WIRE PPL DVD AUDIO COMMON PPL/RED WIRE RADIO RADIO CIRCUIT REAR BODY FUSE BLOCK (ON LEFT REAR RED/BRN WIRE RED/WHT WIRE REMOTE ENABLE REMOTE INFRARED SIG (-) REMOTE SIG RH AUDIO SIG RH DVD AUDIO SIG(+) RH INFRARED AUDIO SIG RT INFRARED AUDIO SIG VIDEO BRIGHT SIG VIDEO DRAIN WIRE VIDEO MODE 2 SIG VIDEO MODULE SIG VIDEO SIG 2 - VIO WIRE VIO/BLK WIRE VIO/DK BLU WIRE WHEELHOUSE) WHT WIRE WHT/BLK WIRE WHT/DK BLU WIRE WHT/GRY WIRE WHT/LT GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE