Buick LaCrosse I (2004-2009) logic Wiring diagrams

12 VOLT REF 3.8L 3.6L BATTERY BATTERY POSITIVE REMOTE STARTER DISABLED CLASS 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) CLASS 2 SERIAL DATA CLSTR FUSE CRANK RELAY 48 CRANK VOLTAGE DK GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOLD- IN COIL HOOD AJAR SWITCH (W/ REMOTE KEYLESS ENTRY) (FRONT OF ENGINE COMPT) HOOD AJAR SWITCH SIG HOT AT ALL TIMES HOT W/ IGN 1 RELAY ENERGIZED I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGNITION SWITCH INSTRUMENT PANEL CLUSTER (IPC) LOCK LOGIC LT GRN WIRE ORG/ WIRE PCM FUSE 15 PNK IGNITION 1 VOLTAGE WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PULL- IN COIL RED WIRE RUN WIRE SPLICE PACK START ENABLE RLY CTRL STARTER STARTER FUSE 33 UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AIR BAG IND AIRBAG OFF AIRBAG ON B+ SEAT BELT IND BATT MAIN 1 FUSE 26 BLK WIRE BLK/WHT WIRE CASE GROUND CLASS 2 (SDM) CLASS 2 SERIAL DATA DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE DRIVER SEAT BELT SWITCH (IN SEAT BELT BUCKLE) GRN WIRE GROUND GRY WIRE HEATED SEAT SIG HOT AT ALL TIMES HOT IN RUN, START I/P FUSE BLOCK (BEHIND LEFT SIDE OF DASH) IGNITION 1 INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) SENSOR INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INSTRUMENT PANEL CLUSTER (IPC) LEFT INFLATABLE RESTRAINT SEAT BELT PRETENSIONER (IN BOTTOM OF DRIVER'S SEAT) LOGIC LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PASSENGER SEAT BELT INDICATOR PASSENGER SEAT BELT SWITCH (IN BELT BELT BUCKLE) PNK WIRE PPL RED WIRE RELAY - FRONT PASSENGER) RFA/MOD FUSE SEATBELT IND SEATS SYSTEM SHORTING BAR SIR FUSE 9 UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE

BATTERY BLK WIRE BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) CLASS 2 SERIAL CLASS 2 SERIAL DATA CLSTR FUSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DOOR LOCKS SYSTEM DRV DR LK SW UNLOCK SIG GROUND GRY WIRE HAZRD FUSE HOT AT ALL TIMES I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LID AJAR SWITCH LOGIC LT BLU WIRE LT GRN WIRE MESSAGE CENTER ORG/ WIRE ORG/BLK WIRE PAS DR LK SW UNLK SIG PNK WIRE REAR COMPARTMENT LID LATCH (IN REAR COMPT LID) RED/BLK WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) TRUNK AJAR IND TRUNK OPEN TRUNK RELEASE CONTROL

ABS/TCS CLASS 2 SERIAL DATA ANTENNA SIGNAL BLK WIRE BLK/WHT WIRE CHECK TIRE PRESSURE INDICATOR CHECK TIRE PRESSURE SERVICE TIRE MONITOR CLASS 2 SERIAL DATA DK BLU WIRE DOOR LOCK AJAR INDICATOR SWITCH DRIVER SEAT BELT SWITCH (IN SEAT BELT BUCKLE) FRONT AJAR PASSENGER DOOR LOCK (IN REAR SIDE OF FRONT PASSENGER'S DOOR) GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGN INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER RIGHT FRONT SEAT) INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SERIAL DATA LOGIC LT GRN WIRE LT GRN/BLK WIRE MESSAGE REQUEST NCA WIRE ORG/ WIRE PASSENGER SEAT BELT SWITCH (IN SEAT BELT BUCKLE) PNK RFA CLASS 2 SERIAL DATA WIRE PNK WIRE PPL PPL PASS SEAT BELT IND RADIO RED WIRE RIGHT SDM CLASS 2 SERIAL DATA SDM CLASS 2 SERIAL DATA LEFT SEAT BELT SW RIGHT SEAT BELT SW SEAT BELT INDICATOR SIR FUSE 9 SOLID STATE UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE