Buick LaCrosse II facelift (2013-2016) obst detct fuse Wiring diagrams

1 2 SERIAL DATA (-) SERIAL DATA (+) 8 7 6 5 4 3 2 1 BATT POS VOLT GROUND BLK WIRE BLU WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY DRIVER OUTSIDE REARVIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR DRIVER OUTSIDE REARVIEW MIRROR GLASS GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/VIO WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LED SIGNAL LEFT SIDE OBJECT SENSOR (BEHIND LEFT REAR WHEEL) LOGIC OBST DETCT FUSE PASSENGER OUTSIDE REARVIEW MIRROR RED/GRN WIRE RIGHT SIDE OBJECT SENSOR (BEHIND RIGHT REAR WHEEL) SERIAL DATA (-) SERIAL DATA (+) ENABLE 2 SERIAL DATA (-) SERIAL DATA (+) ENABLE 2 DET LED SIG LED SIGNAL UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT/GRN WIRE YEL WIRE YEL/VIO WIRE

1 2 3 4 5 6 7 8 LEFT REAR CORNER OBJECT SENSOR LEFT REAR MIDDLE OBJECT SENSOR 1 2 3 4 5 6 7 B+ 8 9 10 11 12 REAR PARK ASSIST DISABLE SIGNAL BLK WIRE BLK/GRY WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIM CTRL GRN WIRE GRN/BRN WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LEFT MIDDLE REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LEFT OUTER REAR OBJECT SENSOR (LEFT SIDE OF REAR BUMPER) LOW REFERENCE LOW SPEED GMLAN SERIAL DATA GROUND OBST DETCT FUSE PARKING ASSIST CONTROL MODULE (CENTER OF REAR PACKAGE SHELF) PARKING ASSIST ON/OFF SWITCH RED/GRN WIRE RIGHT MIDDLE REAR OBJECT SENSOR (RIGHT SIDE OF REAR BUMPER) RIGHT OUTER REAR OBJECT SENSOR SUPPLY VOLT UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) WHT WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

11 12 IGNITION MODE SW CTRL LOW REFERENCE 22 15 5 6 IGN KEY SIG OFF/RUN/CRANK VOL ACC VOLY RUN/CRANK IGN VOLT 3 4 ACC VOLT RUN/CRANK 1 VOLT 8 20 ACC LED SIG START LED SIG ACC IND AWD/SADS FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN WIRE DK BLU/BLK WIRE ENGINE START/ STOP EXCEPT HYBRID FROM FROM INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 2 OF 5) FUSE (DIAGRAM 2 OF 5) GARAGE DOOR OPENER (IF EQUIPPED) GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE IGNITION MODE SWITCH (W/ KEYLESS ENGINE START) IGNITION SWITCH (W/O KEYLESS ENGINE START) ILL KEY-IN IGNITION SWITCH KEYLESS ENTRY CONTROL MODULE LOGIC HYBRID/ EV BATTERY PACK COOLING FAN LRR LDW FUSE MIR EWL FR FUSE MODE VOL- OBST DETCT FUSE OFF OUTSIDE REARVIEW MIRROR SWITCH P-P BLOWER FUSE PASSENGER WINDOW SWITCH REAR DIFFERENTIAL CLUTCH DRIVER CONTROL WINDOW MODULE SWITCH REAR PARKING LEFT SIDE ASSIST OBJECT CONTROL SENSOR MODULE MODULE (IF EQUIPPED) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RIGHT SIDE OBJECT SENSOR MODULE (IF EQUIPPED) RR HTD ST FUSE RUN WIRE RUN/CRANK RLY COIL CTRL START IND SUSPENSION CONTROL MODULE TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 5) UNDERHOOD FUSE BLOCK (LEFT SIDE OF BATTERY) VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ KEYLESS ENGINE START W/ MEMORY W/ SUSPENSION W/O SUSPENSION WHT WIRE YEL WIRE