Buick LaCrosse II (2009-2013) wht/brn Wiring diagrams

1969 28 HEADLIGHTS SYSTEM HORNS SYSTEM 2500 2501 COMPUTER DATA LINES SYSTEM 5077 7541 STARTING/CHARGING SYSTEM EXTERIOR LIGHTS SYSTEM 5797 6132 TRUNK, TAILGATE, FUEL DOORS SYSTEM COMPUTER DATA LINES SYSTEM 5911 3271 2150 294 1303 DOOR LOCKS SYSTEM 6133 6134 COMPUTER DATA LINES SYSTEM BATTERY BLK WIRE BLK/VIO WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE BRN/GRY WIRE BRN/LT GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CHILD SECURITY LCK MTR SHIFT POSITION SIG CHILD SECURITY LOCK RLY CTRL COLUMN) DK BLU WIRE DK BLU/VIO WIRE DK BLU/WHT WIRE DOOR LOCK CONTROL CHILD SECURITY LCK MTR COURTESY LAMP SW SIG DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM INTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM SHIFT INTERLOCK SYSTEM DOOR LOCKS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM FOG LAMP RELAY CONTROL LIFT GLASS/TRUNK RELEASE CTRL CRUISE/ETC/TCC BRAKE SIGNAL GRN/BLU WIRE GRN/BRN WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/LT GRN WIRE GRY/YEL WIRE HEADLAMP HIGH BEAM RLY CTRL HORN RLY CTRL HEADLIGHTS SYSTEM HI SPEED GMLAN DATA BUS (+) HI SPEED GMLAN DATA BUS (-) HOT AT ALL TIMES IGNITION SWITCH INTERCONNECT NETWORK BUS 2 INTERCONNECT NETWORK BUS 3 INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM KEY-IN IGNITION SWITCH LED AMBIENT LIGHTING CTRL 1 LOW REFERENCE STOP LAMP SPLY VOLT LT GRN/GRY WIRE LT GRN/RED WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE OFF POWER DISTRIBUTION SYSTEM PPL PPL PPL RED/LT GRN WIRE RED/WHT WIRE RR CLOSURE HANDLE SW OPEN SIG INTERCONNECT NETWORK BUS 1 RUN RELAY COIL CONTROL RUN WIRE STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM COMPUTER DATA LINES SYSTEM VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WIPER SW HI SIG WIPER/WASHER SYSTEM YEL WIRE

7 2 TRUNK LP CTRL INADVERTENT PWR CTRL BATT POS VOLT BLK WIRE BLOCK, LEFT TAIL LAMP) BODY CONTROL MODULE (LEFT SIDE OF DASH) CENTER CONSOLE COMPARTMENT CENTER CONSOLE COMPARTMENT LAMP COMPUTER DATA LINES SYSTEM COURTESY LAMP COURTESY LP SW SIG CRUISE CONTROL, SOUND SYSTEMS DIMMER SWITCH DRIVER DOOR COURTESY PASSENGER DOOR COURTESY FOG LAMP SWITCH FRONT DOME/ READING LAMPS FUSE FUSE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/LT GRN WIRE HEADLAMP SWITCH HOT AT ALL TIMES INSTRUMENT ILLUMINATION CIRCUIT INSTRUMENT PANEL COMPARTMENT LAMP INSTRUMENT PANEL FUSE BLOCK (LOWER LEFT FUSE SIDE OF DASH) INTR LP CTRL INTR LP DEFEAT SW SIG LAMP LAMP LAMP LAMP SWITCH LED AMBIENT LIGHTING CTRL LEFT REAR DOOR COURTESY LEFT SUNSHADE MIRROR LIFT GATE AJAR SW SIG LIGHTING CTRL SW SIG LIGHTING CTRL SW REF LT GRN/GRY WIRE NETWORK BUS 3 NETWORK BUS 4 ORG/ WIRE READING LAMPS REAR COMPARTMENT COURTESY LAMP REAR COMPARTMENT LID LATCH (IN TRUNK LID) RED WIRE RED/BRN WIRE RED/DK GRN WIRE RED/LT GRN WIRE RIGHT INSTRUMENT PANEL RIGHT REAR DOOR COURTESY RIGHT SUNSHADE MIRROR LAMP VIO/BRN WIRE VIO/GRY WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE

135 MM FROM BREAKOUT TO 6105 6106 6106 6106 COMPUTER DATA LINES SYSTEM BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/GRY WIRE DK GRN/GRY WIRE DRIVER INFORMATION CENTER DISPLAY ESC OFF IND FUSE 31 GMLAN SER DATA (+) GMLAN SER DATA (+) GMLAN SER DATA (-) GMLAN SER DATA (-) GRN WIRE GRY/DK BLU WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT VERTICAL BODY ACCELERATION SENSOR (LEFT FRONT STRUT TOWER) LEFT REAR SHOCK ABSORBER ACTUATOR LF WHL ACC LOW REF LOGIC LT GRN/GRY WIRE LT GRN/VIO WIRE NCA WIRE ORG/ WIRE PACK) PNK/BLK WIRE PPL REAR BODY FUSE BLOCK (ON LEFT REAR WHEELHOUSE) REAR VERTICAL BODY ACCELERATION SENSOR (FRONT OF REAR COMPT) RED/GRY WIRE RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT VERTICAL BODY ACCELERATION SENSOR (RIGHT FRONT STRUT TOWER) RIGHT REAR SHOCK ABSORBER ACTUATOR SUSPENSION CONTROL MODULE (LEFT CORNER OF REAR COMPT) TCS/ ESC IND WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/RED BLK/BRN WIRE YEL/RED WIRE

ACTUATOR CTRL CLOSE SENS LOW REF 5- V REF 1 FRP SENS SIG ACTUATOR CTRL OPEN TP SENS SIG 5-V REF 4 TP SENS 2 SIG KNOCK SENS SIG AIR TEMP SENS SIG BANK 1 SENS (1) BANK 1 SENS (2) MAP SENS SIG 5-V REF 3 BANK 1 SENS 1 BANK 1 SENS 2 BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE BRN/DK BLU WIRE BRN/LT GRN WIRE BRN/RED WIRE DK BLU/WHT WIRE ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) GROUND GRY WIRE GRY/DK BLU WIRE GRY/RED WIRE GRY/WHT WIRE KNOCK SENSOR (LEFT OF EXHAUST MANIFOLD) LOW REF LOW SIG BANK 1 SENS (1) LOW SIG BANK 2 SENS (2) LT GRN/DK BLU WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP OF INTAKE MANIFOLD) MASS AIR FLOW/INTAKE AIR TEMPERATURE SENSOR (TOP OF AIR CLEANER HOUSING) NCA WIRE PARK/NEUTRAL SIG RED WIRE STARTING/CHARGING SYSTEM TAN WIRE TRANSMISSIONS SYSTEM VIO/DK BLU WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE

A/C REFRIGERANT PRESSURE SENSOR (FRONT OF ENGINE COMPT, MOUNTED TO CONDENSER) ACCELERATOR PEDAL POSITION (APP) SENSOR (LEFT SIDE OF DASH) ACCESSORY WAKEUP SERIAL DATA GMLAN SERIAL DATA (+) APP LOW REFERENCE 1 APP SENS 1 SIG BLK WIRE BLK/BRN WIRE BLK/DK BLU WIRE BLK/LT GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BRN/RED WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM 5 6 3 CRUISE CONTROL SYSTEM DK BLU WIRE DK BLU/LT GRN WIRE DK BLU/WHT WIRE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) EVAP CANISTER VENT SOL CTRL HEATER LO CTRL BANK 2 SENS 2 FUEL LEVEL SENS LOW REF FUEL PUMP PRIMARY RELAY CTRL LOW REF FUEL LVL SENS SIG FUSE FUSE FUSE GRN WIRE GRY/WHT WIRE HI SPD COOLING FAN RELAY CTRL LO SPD COOLING FAN RLY CTRL APP LOW REF 2 HIGH SIGNAL BANK 1 SENSOR 2 A/C REFRIGERANT PRE SENS SIG HOT W/ IGNITION MAIN RELAY ENERGIZED IAT SENS SIG HI SIG BANK 2 SENSOR 2 CRUISE/ETC/TCC BRAKE SIGNAL INSTRUMENT CLUSTER SYSTEM LT BLU/BLK(OR DK BLU/WHT) WIRE LT GRN WIRE LT GRN/GRY WIRE LT GRN/VIO WIRE LT GRN/WHT WIRE MAF SENS SIG PARK/NEUTRAL SIGNAL RED/BRN WIRE STARTING/ CHARGING SYSTEM TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO/BLK WIRE VIO/DK BLU WIRE VIO/GRY WIRE VIO/LT GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE WHT/DK BLU WIRE WHT/GRY WIRE WHT/RED DK BLU WIRE WHT/RED WIRE WHT/YEL WIRE YEL WIRE YEL/DK BLU WIRE YEL/RED WIRE YEL/WHT WIRE