Buick LaCrosse I (2004-2009) (in steering column wiring harness) Wiring diagrams

10 59 STOP SWITCH SIG SET/COAST RESUME/ ACCELERATE SIGNAL 10 VOLT REF 5 VOLT REFERENCE 1 PPL LOW REFERENCE 5 VOLT REFERENCE 2 LOW REFERENCE APP SENSOR 2 SIGNAL 55 54 15 8 31 39 TP SENS 1 SIG ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) BAT POS VOL BCM CLASS 2 DATA BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE CLSTR FUSE COMPUTER DATA LINES SYSTEM CRUISE CAN SW SIG CRUISE FUSE CRUISE INDICATOR CRUISE SET XX MPH CRUISE SWITCH DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE ENGINE CONTROL MODULE (ECM) (TOP OF ENGINE) GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGN INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING COLUMN) INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SER DATA LEFT STEERING WHEEL CONTROLS LOGIC LOW REF LT BLU WIRE LT GRN WIRE MESSAGE MESSAGE CENTER (UP LEVEL) NCA WIRE ON IND. ORG/ WIRE PCM CLASS 2 SER DATA PNK WIRE PPL REAR OBJECT SENSOR CONTROL MODULE RES+ SET- STOP LAMP SIG STOP SWITCH SIG TAC MTR CTRL 2 TP SENS 2 SIG TAC MTR CTRL 1 LOW REF PPL TAN WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE (AT THROTTLE BODY) TRANSMISSION CONTROL MODULE (TCM) UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) VEH SPD SIG VEHICLE SPEED SENSOR (VSS) VSS HIGH SIG VSS LOW SIG WHT WIRE WHT/BLK WIRE YEL WIRE

10 VOLT REF 32 22 44 STOP SWITCH SIG VEHICLE SPEED SIGNAL 5 VOLT REF ACCELERATOR PEDAL POSITION (APP) SENSOR (ABOVE ACCELERATOR PEDAL) APP SENS 1 SIG APP SENS 2 SIG BAT POS VOL BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE CLSTR FUSE COMPUTER DATA LINES SYSTEM CRUISE CAN SW SIG CRUISE FUSE CRUISE INDICATOR CRUISE SET XX MPH DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGN INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING COLUMN) INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SER DATA LEFT STEERING WHEEL CONTROLS LOGIC LOW REF LT BLU WIRE LT GRN WIRE MESSAGE MESSAGE CENTER (UP LEVEL) NCA WIRE ON IND. ORG/ WIRE ORG/BLK WIRE PCM CLASS 2 SER DATA PNK WIRE POWERTRAIN CONTROL MODULE (LEFT SIDE OF ENGINE COMPT, NEAR AIR CLEANER ASSEMBLY) PPL PPL LOW REF REAR OBJECT SENSOR CONTROL MODULE RES+ SER DATA PRIMARY SER DATA SECONDARY SET CRUISE SWITCH SET/COAST RESUME/ ACCELERATE SIGNAL STOP LAMP SIG STOP LAMP SW SIG STOP SWITCH SIG BCM CLASS 2 DATA LOW REF TAN WIRE THROTTLE ACTUATOR CONTROL (TAC) MODULE (AT THROTTLE BODY) UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) VEH SPD SIG VEHICLE SPEED SENSOR (VSS) VEHICLE SPEED SIGNAL VSS HIGH SIGNAL VSS LOW SIGNAL WHT WIRE WHT/BLK WIRE YEL WIRE

3.6L A/T SHIFT LOCK CONTROL PRNDL SOLENOID LAMP BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) DRIVER BACK DRIVER HEATED HEATED SEAT SEAT ELEMENT RELAY DRIVER DOOR LOCK DRIVER DRIVER SEAT SEAT BELT ADJUSTER SWITCH SWITCH ELECTRONIC RIGHT COMPASS LICENSE MODULE LAMP HORN SWITCH IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LEFT BODY REAR CONTROL DOOR MODULE LOCK (BCM) LEFT REAR MARKER LAMP LEFT UPPER TAIL/STOP LEFT, TURN TAIL SIGNAL LAMP LAMP LOWER LEFT LEFT TAIL BACKUP LAMP LAMP NCA WIRE OUTSIDE DRIVER DOOR DRIVER REARVIEW LOCK WINDOW MIRROR SWITCH SWITCH SWITCH PASSENGER BACK PASSENGER HEATED HEAT SEAT SEAT ELEMENT RELAY PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT BELT SWITCH REAR OBJECT SENSOR CONTROL MODULE REAR WINDOW DEFOGGER GRID W/ CONSOLE SHIFT W/ HEATED SEATS W/ PARK ASSIST W/ POWER SEATS W/O POWER SEATS W/O W/ POWER POWER SEATS SEATS WHT WIRE