Wiring Diagrams for Buick LaCrosse I (2004-2009)

3.6l vin 7, automatic a/c circuit 3.6l vin 7, compressor circuit

3.8l vin 2, automatic a/c circuit 3.8l vin 2, compressor circuit 3.8l vin 2, manual a/c circuit

Anti-lock brakes circuit

Forced entry circuit Pass-key circuit

Body control modules circuit

Computer data lines circuit

3.6l vin 7, cooling fan circuit

3.8l vin 2, cooling fan circuit

3.6l vin 7, cruise control circuit

3.8l vin 2, cruise control circuit

Defoggers circuit

Electronic power steering circuit

Wiring diagram engine performance 3.6l vin 7

Wiring diagram engine performance 3.8l vin 2

Exterior lamps circuit

3.6l vin 7, backup lamps circuit

3.8l vin 2, backup lamps circuit

Ground distribution circuit

Headlights circuit

Horn circuit

Instrument cluster circuit, with message center Instrument cluster circuit, without message center

Courtesy lamps circuit Instrument illumination circuit

Parking assistant circuit

Power distribution circuit

Power door locks circuit

Electrochromic mirror circuit Power mirrors circuit

Driver power seat circuit Driver"s lumbar circuit Heated seats circuit Passenger"s power seat circuit

Power top/sunroof circuit

Power windows circuit

Radio circuit, with amplifier Radio circuit, without amplifier Satellite radio circuit

Ignition lock solenoid circuit, with console shift

3.6l vin 7, shift interlock circuit

3.8l vin 2, shift interlock circuit

Charging circuit Starting circuit

Supplemental restraints circuit

3.6l vin 7, a/t circuit

3.8l vin 2, a/t circuit

Trunk release circuit

Warning systems circuit

Wiper/washer circuit

A/C CLU DIODE AMPLIFIER CTRL ANTI-LOCK BRAKE SYSTEM ANTI-LOCK BRAKES SYSTEM BATTERY IGN 1 VOLT CLASS 2 SERIAL BATTERY IGNITION 1 BATTERY POSITIVE REMOTE STARTER DISABLED CLASS 2 SERIAL DATA BATTERY POSITIVE VOLTAGE BATTERY VOLT DRIVER DOOR LOCK DRIVER DOOR LOCK (IN REAR AJAR GENERATOR FIELD DUTY CYCLE SIG GENERATOR TURN ON SIG HOLD- IN COIL HORN ASSEMBLY HORN RLY CTRL IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 IGNITION COIL 5 IGNITION COIL 6 IGNITION IGNITION COIL 1 COIL 3 INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LEFT REAR DOOR LOCK AJAR LOCK UNLOCK PASS DOOR LOCK SW LOCK SIG STOP LAMP SW SIG PPL SUPPLY GND BATTERY SPEED CTRL GND PULL- IN COIL REAR COMPARTMENT RIGHT REAR LID LATCH DOOR LOCK RLY COIL CTRL BATTERY + DELV TORQUE SIG SERIAL DATA BATTERY TERMINATOR RESISTOR TRANS RANGE A LOW REF IGN 1 BATTERY

(IN ENGINE WIRING (IN ENGINE WIRING HARNESS, (IN ENGINE WIRING HARNESS, APPROXIMATELY (IN LEFT FRONT OF ENGINE COMPT, APPROXIMATELY 5 CM FROM BREAK- OUT TO PCM, (IN ON-ENGINE WIRING HARNESS, APPROXIMATELY 15.25 CM FROM (IN ON-ENGINE WIRING HARNESS, APPROXIMATELY 19 (RIGHT SIDE OF ENGINE ANTI-LOCK BRAKES, ENGINE CONTROLS SYSTEM ANTI-LOCK BRAKES, ENGINE CONTROLS, TRANSMISSIONS SYSTEMS AUTO OFF BLOWER MOTOR SW B+ MOTOR CONTROL BLOWER MOTOR (BEHIND RIGHT BLOWER MOTOR CONTROL PROCESSOR DOOR LOCK ACTUATOR ENGINE COMPARTMENT, NEAR AIR CLEANER ASSEMBLY) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE GAGE FRONT VERTICAL MOTOR HORIZONTAL MOTOR IGNITION LOCK CYLINDER CONTROL ACTUATOR INSIDE SUNROOF REARVIEW MOTOR MIRROR LEFT COOLING FAN MOTOR MOTOR - FRONT PASSENGER) OFF BLOWER MOTOR SW PASSENGER OUTSIDE REARVIEW MIRROR MOTOR PUMP MOTOR RIGHT COOLING FAN MOTOR SUNROOF MOTOR WINDSHIELD WIPER MOTOR

ANTENNA MODULE ANTENNA SIG ANTENNA SIGNAL COAX 1 ANTENNA SIG RADIO ON SIG ANTENNA SIG PPL COAX COAX ANTENNA SIG COAX PPL COAX ANTENNA SIG RADIO ON SIG ANTENNA SIG REAR WINDOW ANTENNA

BUTTON BACK LIGHTING

(BELOW CENTER OF DASH, APPROXIMATELY 10 CM FROM BREAKOUT TO DATA LINK CONNECTOR (INSIDE TRANSMISSION HOUSING, APPROXIMATELY 19 CM FROM INLINE CONNECTOR

(ON TOP OF ENGINE NEAR IGNITION CONTROL MODULE, APPROXIMATELY 5.5 CM FROM (ON TOP OF ENGINE NEAR IGNITION CONTROL MODULE, APPROXIMATELY 12 CM FROM BODY CONTROL MODULE HVAC CONTROL MODULE HVAC CONTROL MODULE AUTOMATIC A/C MANUAL A/C POWERTRAIN CONTROL MODULE (LEFT SIDE OF TRANSMISSION CONTROL MODULE

02 SSR FUSE 14 A/C CLUTCH FUSE 13 ABS FUSE 23 ABS MTR FUSE 31 ABS SOL FUSE 19 AIR PUMP FUSE 25 AUX PWR FUSE 10 BATT MAIN 1 FUSE 26 BATT MAIN 2 FUSE 27 BATT MAIN 3 FUSE 28 BATT MAIN 4 FUSE 30 CANISTER FUSE PRK/ SWITCH FUSE CHMSL/ BKUP FUSE CHMSL/ BKUP FUSE INT ILLUM FUSE CLSTR FUSE CLSTR FUSE CNSTR FUSE CRUISE FUSE DISPLAY FUSE 18 DR LCK/ TRUNK FUSE DR/LCK TRUNK FUSE ELEK IGN FUSE 24 ELEK IGN FUSE 24 FUEL INJ FUSE 20 EMIS- SION FUSE 12 SSR FUSE 14 EMISSION FUSE 12 ETC FUSE 17 FAN 1 FUSE 29 FAN 2 FUSE 32 FOG LPS FUSE 7 FOG LPS FUSE 7 FAN 1 FUSE 29 FAN 2 FUSE 32 FUEL INJ FUSE 20 FUEL PP FUSE 22 FUSE 14 HAZRD FUSE HORN FUSE 11 HOT AT ALL TIMES ONSTAR/ ALDL FUSE HTD MIR FUSE HTD SEAT FUSE HVAC FUSE I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT I/P FUSE BLOCK (BEHIND RIGHT SIDE INT/ ILLUM FUSE INT/ ILLUM FUSE HAZRD FUSE INT/ILLUM FUSE LF HI BEAM FUSE 1 LF LO BEAM FUSE 3 ONSTAR/ ALDL FUSE PARK/SWITCH FUSE PCM FUSE 15 PCM/ ETC FUSE 16 PCM/ETC FUSE 16 PRK LAMP FUSE PRK/LAMP FUSE PWR/ MIR FUSE PWR/MIR FUSE RADIO AMP FUSE RDO AMP FUSE RF HI BEAM FUSE 2 RF LO BEAM FUSE 4 RFA/ MOD FUSE RFA/MOD FUSE S/ROOF FUSE SIR FUSE 9 SIR FUSE 9 DISPLAY FUSE 18 STARTER FUSE 33 STR/WHL/ ILLUM FUSE TCM FUSE 8 TO TCM FUSE 8 TRANS SOL FUSE 21 UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (MOUNTED TO WASHER/ RVC FUSE 6 WIPER/ WS FUSE 5 WIPER/WS FUSE 5

ABS INDICATOR AIR BAG INDICATOR AJAR DOOR LOCK AJAR INDICATOR SWITCH BRAKE INDICATOR CHANGE OIL INDICATOR CHARGE INDICATOR CHARGING INDICATOR CHECK GAS CAP INDICATOR CHECK TIRE PRESSURE INDICATOR CRUISE INDICATOR DOOR AJAR INDICATOR DOOR LOCK AJAR INDICATOR SWITCH DOOR LOCK OPEN INDICATOR SWITCH DRIVER HEATED SEAT HIGH INDICATOR DRIVER HEATED SEAT LOW INDICATOR ENGINE COOLANT TEMPERATURE INDICATOR FOG LAMPS INDICATOR FRONT PASSENGER HEATED SEAT HIGH INDICATOR FRONT PASSENGER HEATED SEAT LOW INDICATOR HDLP SUGGEST INDICATOR HIGH BEAM INDICATOR INFLATABLE RESTRAINT PASSENGER AIR BAG ON/OFF INDICATOR KM/H INDICATOR LEFT TURN INDICATOR LOW COOLANT INDICATOR LOW FUEL WARNING LAMP INDICATOR LOW TIRE PRESSURE INDICATOR LOW WASH INDICATOR LOW WASHER FLUID INDICATOR MALFUNCTION INDICATOR LAMP MPH INDICATOR OIL LEVEL INDICATOR LAMP PASSENGER SEAT BELT INDICATOR REAR HATCH AJAR INDICATOR REDUCED ENGINE POWER INDICATOR RIGHT TURN INDICATOR SEAT BELT INDICATOR SECURITY INDICATOR SERVICE VEHICLE SOON INDICATOR TRACTION OFF INDICATOR TRUNK AJAR INDICATOR TURN AUDIBLE INDICATOR

8 16 17 4 PARK LAMP ON SIG HAZARD SW SIG RIGHT TURN SW SIG LEFT TURN SW SIG 8 1450 734 720 INTERIOR LIGHTS SYSTEM 30 48 43 STOP LAMP SW SIG RR STOP/TURN VOLT LR STOP/TURN VOLT 244 17 DOOR LOCKS SYSTEM EXTERIOR LIGHTS SYSTEM 1732 690 1315 1314 80 17 1037 INTERIOR LIGHTS SYSTEM (IN FORWARD LAMP HARNESS, APPROXIMATELY 19 CM FROM LEFT FRONT (IN FORWARD LAMP WIRING HARNESS, BEHIND RIGHT HEADLAMP, APPROXIMATELY 5 CM FROM ANTI-THEFT SYSTEM EXTERIOR LIGHTS SYSTEM BACKUP LAMP SPLY VOLT BACKUP LAMP SPLY VOLTAGE REAR PARKING DIAGNOSTIC SIG BACKUP LAMP SUPPLY VOLT BACKUP LAMP SUPPLY VOLTAGE COMPUTER DATA LINES SYSTEM 8 1450 734 720 INTERIOR LIGHTS SYSTEM COUR- TESY LAMP COURTESY LAMP ELECTRONIC RIGHT COMPASS LICENSE MODULE LAMP FOG LAMP IND FRONT FOG LAMP SW HORNS SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM I/P LAMP SUPPLY VOLTAGE INTERIOR 8 1450 LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM DEFOGGER SYSTEM LEFT BACK-UP LAMP LEFT COURTESY/ READING LAMP LEFT DOME/ READING LAMP LEFT FRONT FOG LAMP LEFT FRONT MARKER LAMP LEFT FRONT PARK/ TURN SIGNAL LAMP LEFT I/P COURTESY LAMP LEFT LICENSE LAMP LEFT REAR MARKER LAMP LEFT TAIL/ STOP, TURN SIGNAL LAMP LEFT REAR LEFT UPPER TAIL/STOP LEFT, TURN TAIL SIGNAL LAMP LAMP LEFT VANITY MIRROR LAMP LOWER LEFT LEFT TAIL BACKUP LAMP LAMP LOWER UPPER LEFT LEFT TAIL LAMP TAIL LAMP MARKER LAMP PARK LAMP SW ON SIG PPL ON SIG I/P LMP VLT GROUND 8 1450 INTERIOR LIGHTS SYSTEM REAR COMPARTMENT COURTESY LAMP RIGHT BACK-UP LAMP RIGHT COURTESY/ READING LAMP RIGHT DOME/ READING LAMP RIGHT DOME/ READING SUNROOF LAMP MODULE RIGHT FRONT FOG LAMP RIGHT FRONT MARKER LAMP RIGHT FRONT PARK/ RIGHT TURN FRONT SIGNAL FOG LAMP LAMP RIGHT FRONT PARK/ TURN SIGNAL LAMP RIGHT I/P COURTESY LAMP RIGHT LICENSE LAMP RIGHT REAR MARKER LAMP RIGHT TAIL/ STOP, TURN SIGNAL LAMP LOWER RIGHT TAIL LAMP UPPER RIGHT TAIL LAMP RIGHT TAIL/STOP, TURN SIGNAL LAMP RIGHT VANITY MIRROR LAMP SHIFT INTERLOCK SYSTEM INTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM STOP LAMP STOP LAMP SIG STOP LAMP SW SIG UPPER RIGHT RIGHT BACKUP TAIL TAIL LAMP LAMP LAMP WARNING SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS SYSTEM

FUEL PUMP, SENDER ASSEMBLY WASHER PUMP CTRL WINDSHIELD WASHER FLUID PUMP

A/C COMP RELAY A/C COMP RELAY 38 A/C PRESS SIG STOP LAMP SW A/C CLUTCH RELAY RELAY CTRL A/C WIPER RELAY 37 RELAY 45 CRANK RELAY 48 DR/LCK TRUNK FUSE RAP RELAY DRIVER BACK DRIVER HEATED HEATED SEAT SEAT ELEMENT RELAY DRIVER'S HEATED SEAT RELAY (UNDER FAN 1 RELAY 42 FAN 2 RELAY 46 FAN 3 RELAY 43 FOG LAMP RELAY CTRL FOG LP FAN 2 FAN 1 RELAY 36 RELAY 46 RELAY 42 FOG LP RELAY 36 FUEL PP RELAY 41 FUEL PUMP RELAY HI BEAM RELAY 34 HORN RELAY 39 HOT W/ IGN 1 RELAY ENERGIZED HOT W/ RAP RELAY ENERGIZED IGN 1 HDM BEAM RELAY 37 MODULE 35 IGN 1 RELAY IGN 1 RELAY 37 LOW REF RELAY CTRL RELAY CTRL CLASS 2 SERIAL A/C COMP CLUTCH P/TRAIN RELAY P/TRAIN RELAY 40 PASSENGER BACK PASSENGER HEATED HEAT SEAT SEAT ELEMENT RELAY PRK LAMP RELAY R/ DEFOG RELAY REAR DEFOG RELAY CTRL RELAY - FRONT PASSENGER) RR DEFOG RELAY WIPER HI RELAY 44 WIPER HI WIPER RELAY 44 RELAY 45 WIPER RELAY 45

1 3 2 SENSOR SIGNAL SUPPLY VOLTAGE LOW REFERENCE 2 3 1 LOW REFERENCE SUPPLY VOLTAGE SENSOR SIGNAL 5 VOLT REFERENCE 2 LOW REFERENCE APP SENSOR 2 SIGNAL A/C REFRIGERANT PRESSURE SENSOR (ON LEFT SIDE OF ENGINE COMPT, A/T FLUID TEMP SENSOR A/T FLUID TEMP- ERATURE SENSOR AAP SENSOR 1 AMBIENT AIR TEMPERATURE SENSOR AMBIENT LIGHT SENSOR AMBIENT LIGHT SENSOR IND APP SENSOR 2 AUTOMATIC TRANSAXLE FLUID TEMPERATURE SENSOR BATTERY CURRENT SENSOR BRAKE FLUID PRESSURE SENSOR BRAKE PEDAL POSITION SENSOR BREAKOUT TO DATA LINK CONNECTOR TOWARDS BRAKE PEDAL POSITION SENSOR) CAMSHAFT POSITION SENSOR EXHAUST BANK 1 CAMSHAFT POSITION SENSOR EXHAUST BANK 2 CAMSHAFT POSITION SENSOR INTAKE BANK 1 CAMSHAFT POSITION SENSOR INTAKE BANK 2 CMP SENSOR LOW ENG SPEED MED ENG SPEED LOW REF LOW REF OIL LEVEL SW CURRENT SENSOR LOW REF CURRENT SENSOR SIG ECT SENSOR SIG FUEL LEVEL SENSOR FUEL TANK PRESSURE SENSOR GEN FIELD KNOCK SENSOR 1 HEADLIGHT SENSOR IND HEATED OXYGEN SENSOR IAT SENSOR SIG INPUT SHAFT SPEED SENSOR INSIDE AIR TEMPERATURE SENSOR LEFT INFLATABLE RESTRAINT FRONT END SENSOR MAF SENSOR SIG MANIFOLD ABSOLUTE PRESSURE SENSOR (TOP RIGHT SIDE OF MAP SENSOR SIG OIL PRESS SIG KNOCK SENSOR 2 AIR SOL CTRL REAR OBJECT SENSOR CONTROL MODULE SENSOR SIG SENSOR SIG LOW REF SENSOR SIG LOW REF SENSOR SIG LOW REF SENSOR SIG LOW REF SENSOR SIG SENSOR SIG LOW REF PPL SUNLOAD SENSOR ASSEMBLY TFT SENSOR SIG TOWARDS BRAKE PEDAL POSITION SENSOR) TRANSMISSION INPUT SHAFT SPEED SENSOR

CENTER SPEAKER CUSTOM 9 SPEAKER SYSTEM LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER RIGHT FRONT RIGHT FRONT LEFT REAR TWEETER DOOR SPEAKER SPEAKER SPEAKER RIGHT REAR SPEAKER RIGHT RIGHT FRONT FRONT DOOR TWEETER SPEAKER SPEAKER SUB- MID SUB- MID WOOFER RANGE WOOFER RANGE RIGHT REAR LEFT REAR SPEAKER SPEAKER

10 59 STOP SWITCH SIG SET/COAST RESUME/ ACCELERATE SIGNAL 32 22 44 STOP SWITCH SIG VEHICLE SPEED SIGNAL 39 23 46 29 SWITCH SIG P SWITCH SIG C SWITCH SIG B SWITCH SIG A (APPROXIMATELY 4.5 CM FROM BREAKOUT TO SEAT LUMBAR SWITCH DRIVER, TOWARD INLINE A/C COMPRESSOR TEMPERATURE SWITCH A/C REQUEST SWITCH A/T FLUID PRESSURE MANUAL VALVE POSITION SWITCH CRUISE SWITCH DEFEAT LAMP SWITCH ASSEMBLY DEFOGGER IND REAR DEFOGGER SWITCH DELAY SWITCH DOOR LOCK CYLINDER SWITCH DRIVER DOOR LOCK SWITCH DRIVER DRIVER SEAT SEAT ADJUSTER LUMBAR SWITCH SWITCH DRIVER DRIVER SEAT SEAT BELT ADJUSTER SWITCH SWITCH DRIVER HEATED SEAT SWITCH DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT LUMBAR SWITCH DRIVER WINDOW SWITCH EMERGENCY SWITCH FRONT FRONT PASSENGER PASSENGER WINDOW DOOR LOCK SWITCH SWITCH FRONT PASSENGER DOOR LOCK SWITCH FRONT PASSENGER HEATED SEAT SWITCH FRONT PASSENGER WINDOW SWITCH HOOD AJAR SWITCH HOOD AJAR SWITCH SIG HORN SWITCH I/P COMPARTMENT LAMP SWITCH IGNITION SWITCH KEY IN IGNITION SWITCH SIGNAL KEY-IN IGNITION SWITCH LAMP SWITCH ASSEMBLY LEFT REAR WINDOW SWITCH LID AJAR SWITCH LOCK OUT SWITCH MODE SWITCH ONSTAR SWITCH OUTSIDE DRIVER DOOR DRIVER REARVIEW LOCK WINDOW MIRROR SWITCH SWITCH SWITCH OUTSIDE REAR VIEW MIRROR SWITCH OUTSIDE REARVIEW MIRROR SWITCH PARK SWITCH PASSENGER SEAT ADJUSTER SWITCH PASSENGER SEAT BELT SWITCH PHONE SWITCH REAR DEFOGGER SWITCH RECIRCULATION SWITCH REQUEST SWITCH A/C A/C REQUEST IND RIGHT REAR WINDOW SWITCH SET CRUISE SWITCH STOP LAMP SWITCH SIGNAL STOP SWITCH SIG STOP SWITCH SIG BCM CLASS 2 DATA LOW REF SUNROOF SWITCH SUNROOF SWITCH CLOSE SIGNAL GROUND SUNROOF SWITCH LOW REFERENCE SUNROOF SWITCH OPEN SIGNAL SWITCH SIG A SWITCH SIG B SWITCH SIG C SWITCH SIG P TCC RELEASE SWITCH TRANSMISSION FLUID PRESSURE MANUAL VALVE POSITION SWITCH TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION INTERNAL MODE SWITCH P/N TURN SIGNAL/ MULTI-FUNCTION SWITCH TURN SIGNAL/ MULTIFUNCTION SWITCH WASHER SWITCH WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WIPER SWITCH

1-2 SHIFT SOLENOID 1-2 SHIFT SOLENOID VALVE 2-3 SHIFT SOLENOID 2-3 SHIFT SOLENOID VALVE A/C COMPRESSOR CLUTCH SOLENOID A/T SHIFT LOCK CONTROL PRNDL SOLENOID LAMP A/T SHIFT LOCK CONTROL SOLENOID AUTOMATIC TRANSMISSION PRESSURE CONTROL SOLENOID B+ SOL VALVE CONTROL PRESSURE CONTROL SOLENOID VALVE SOLENOID VALVES TCC 2-3 SOL SHIFT SHIFT VALVE SOL SOL VALVE VALVE TORQUE CONVERTER CLUTCH SOLENOID TORQUE CONVERTER CLUTCH SOLENOID VALVE

1 2 8 L AUDIO SIG AUDIO COMMON SIG DRAIN WIRE 5 3 1 2 6 4 LATERAL ACCELEROMETER SIG IGN 1 VOLT PNK WIRE 18 19 20 IGNITION 3 IGNITION 1 BATTERY PNK WIRE AUTOMATIC A/C PNK PNK WIRE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE DRAIN WIRE GRN WIRE GROUND AUD COMMON DRAIN WIRE GROUND IGN 1 VOLTAGE PNK WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE KEYPAD GREEN LED IND KEYPAD GREEN LED SIGNAL KEYPAD RED WIRE LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK IGN 1 VOLT FAN RLY CTRL ENG SPD SIG WIRE PNK IGN 1 VOLT WIRE PNK IGNITION 1 VOLTAGE WIRE PNK OCCUPANT DATA LINK L SEAT BELT SW WIRE PNK PNK PNK W/ PARK ASSIST WIRE PNK PNK WIRE PNK PPL WIRE PNK RFA CLASS 2 SERIAL DATA WIRE PNK RFA SER DATA GROUND WIRE PNK WINDSHIELD WASHER SW SIG WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL/WHT WIRE RED IND CTRL WIRE RED LED IND WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE RUN WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE WHT DK GRN/ WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

1-6 2-3 SOL VLV CTRL 3.6L 3.6L 3.8L 3.6L W/ ACTIVE BRAKE CONTROL 3.8L 3.8L 3.6L 3.8L PPL 3.8L W/ CALIFORNIA PZEV EMISSION SYSTEM 4 20 48 HI SPD FAN RLY LO SPD FAN RLY CLASS 2 SERIAL 5 VOLT REF 5 VOLT REF 1 5 VOLT REF 1 5 VOLT REF 1 5 VOLT REFERENCE 1 PPL LOW REFERENCE 5-VOLT REF 1 5-VOLT REF 2 6 7 38 37 DATA BUS - DATA BUS + DATA BUS + DATA BUS - 9 39 25 4 20 48 49 A/C PRESS SIGNAL 9 39 25 48 49 A/C PRESS SIGNAL 10 VOLT REF 12 2 1 B+ CLASS 2 GND IGN 12 13 14 15 16 PPL 12 VOLT REF 12 VOLT REFERENCE IGNITION 3 VOLTAGE 15 21 PCM CLASS 2 SER DATA ENG SPEED SIG 15 43 8 SERIAL DATA FUEL LVEL SIG LOW REF PPL 18 19 PPL 23 7 ECT SENS SIG LOW REF 28 1439 1459 860 HORNS SYSTEM POWER DISTRIBUTION SYSTEM 30 34 73 LOW REF 5 VOLT REF 1 GROUND 31 4 7 15 33 A/C PRESS SIGNAL 31 4 7 50 48 15 33 A/C PRESS SIGNAL 31 57 OIL LVL SW SIG OIL PRESS SW 32 23 55 P/N SIGNAL GMLAN SERIAL DATA GMLAN SERIAL DATA 37 38 GMLAN SER DATA 40 5 7 OIL PRESS SW 42 25 48 PPL FUEL LVEL SIG LOW REF SERIAL DATA 46 29 TR SW B TR SW A 48 15 5 37 ECM CLASS 2 SER DATA REQ TORQUE SIG ENG SPEED SIG DEL TORQUE SIG 50 48 15 HI SPD FAN RLY LO SPD FAN RLY CLASS 2 SERIAL 55 23 48 DATA BUS - DATA BUS + 55 29 410 2761 ECT SENS SIG LOW REF 55 29 ECT SENS SIG LOW REF 55 54 15 8 31 39 TP SENS 1 SIG 295 294 550 440 19 DOOR LOCKS SYSTEM 380 2700 2751 473 335 1049 31 4 7 50 48 15 33 A/C PRESS SIGNAL 1715 1415 2144 1251 1356 94 524 192 1872 WIPER/WASHER SYSTEM (BELOW CENTER OF DASH, APPROXIMATELY 5 CM FROM (IN BACK OF (IN BODY WIRING HARNESS, BELOW (IN BODY WIRING HARNESS, BELOW RIGHT FRONT (IN ROOF WIRING HARNESS, NEAR CENTER OF WINDSHIELD HEADER APPROXIMATELY 10 CM (LEFT SIDE OF DASH, AT BASE OF -1 +2 A/C COMPRESSOR CLUTCH A/C REQUEST IND A/T SHFT LK CTRL SOL VOLT ABS IND. ABS/TCS CLASS 2 SER DATA ABS/TCS CLASS 2 SERIAL DATA ACCESSORY VOLTAGE ADG CLASS 2 SERIAL DATA AIR BAG IND AIR CONDITIONING SYSTEM AIR PRES SENS AIR TEMP A AIR TEMP B AIR TEMP A AIR TEMP B AIR TEMP B AIR TEMP A RECIRCULATION B RECIRCULATION A AIRBAG OFF AIRBAG ON ANTI-THEFT SYSTEM WIPER/WASHER SYSTEM APP SENS 1 SIG APP SENS 2 SIG AT ISS SIG AUTO OFF AUTO PARK AUTOMATIC A/C AUTOMATIC A/C MANUAL A/C AUTOMATIC TRANSMISSION AUXILIARY POWER OUTLET B+ SEAT BELT IND BAT POS VOL BAT POS VOLTAGE BRAKE WARNING IND CTRL BCM CLASS 2 SERIAL DATA BATT + BCM CLASS 2 DATA BCM CLASS 2 SERIAL BCM CLASS 2 SERIAL DATA BCM CLASS 2 SERIAL DATA IGN BLUNT CUT) BOOST SOL BRAKE FLUID LEVEL BREAKOUT, TOWARDS ICM) CASE GROUND CELLULAR MICRO PHONE SIGNAL CENTER AMBER IND CENTER AMBER IND CTRL LEFT AMBER IND CTRL CENTER OF REAR WINDOW PANEL, APPROXIMATELY 90 CM FROM BREAKOUT TO REAR COMPT CHECK TIRE PRESSURE SERVICE TIRE MONITOR CHIME CONTROL CHIME CONTROL TELLTALE ASSEMBLY SPLY VOLTAGE CIGAR LIGHTER CLASS 2 CLASS 2 DATA CLASS 2 DATA CLU RLY CTRL MIL CTRL CLASS 2 SERIAL CLASS 2 SERIAL DATA CLOSE OPEN/VENT CMP SIG CMP SIG GEN FDC SIG CMP SOL CTRL CMP SOL CTRL CODE A CODE B CODE C COLUMN SHIFT COLUMN SHIFT CONSOLE SHIFT COMPASS SENS FEED COMPASS SENS RET COMPASS SENS RTN COMPUTER DATA LINES SYSTEM CONSOLE SHIFT COOLING FANS SYSTEM COURTESY LAMPS SW ON SIG I/P DIMMING RET TRACTION CTRL SW SIG LOW REF CRANK VOLTAGE CRUISE CAN SW SIG CRUISE CONTROL SYSTEM CRUISE SET XX MPH DEFOGGER IND DEFOGGER SYSTEM DIGITAL RADIO RECEIVER DK 1-6 DK LT DK LT LT DK DOOR AJAR TRUNK AJAR DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM NAVIGATION SYSTEM DRIVER INFORMATION CENTER DRIVER OUTSIDE REARVIEW MIRROR DRIVER'S SEAT DRL AMBIENT LIGHT DRV DR LK SW UNLOCK SIG EARLY PRODUCTION ECM CLASS 2 SERIAL DATA ECM/PCM CLASS 2 SERIAL DATA ECM/PCM CLASS 2 SERIAL DATA IGN ECT SIG EGR SOL HIGH EGR SOL LOW EMERGENCY IND EVAP PURGE SOL EVAP VENT SOL EXCEPT SULEV EXPRESS DOWN EXPRESS DOWN MODULE EXT LMPS OFF INPUT EXTERIOR LAMPS OFF FLASH TO PASS SW FRONT DOWN FRONT UP FUEL FUEL FUEL INJECTOR 3 INJECTOR 1 INJECTOR 5 FUEL FUEL INJECTOR 2 INJECTOR 4 FUEL GAGE FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTORS FUEL TANK DK FUEL TANK PRESS FUSIBLE LINK (8 GA- GARAGE DOOR OPENER GEN ON SIG GMLAN BUS- GMLAN SER DATA GPS 1 VEHICLE COMMUNICATION SYSTEM GROUND DISTRIBUTION SYSTEM HARNESS, APPROXI- MATELY 20 CM FROM HDLP SUGGEST IND HDM BEAM MODULE 35 HEADLAMP ASSEMBLY) HEADLAMP MOD CTRL HEADLAMP ON SIG HEADLIGHTS SYSTEM HEATED OXYGEN HEATED SEAT ELEMENT HEATED SEAT SIG HEATED SEAT THERMISTOR HI BEAM RLY CTRL HI SPD GMLAN SER DATA - HI SPD GMLAN SERIAL DATA HIGH BEAM IND HIGH FAN HIGH LOW HIGH PPL HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, START HVAC CLASS 2 SERIAL DATA HVAC CONTROL RADIO MODULE I/P CLASS 2 SERIAL DATA I/P DIMMING VOLTAGE REF IC TIMING CTRL IGN 1 HDM BEAM MODULE 35 IGN 1 VOLT IGN 1 VOLTAGE IGN 3 CTRL LOW REF IGN 3 VOLT CC SW SIG APP SENS SIG IGN 3 VOLTAGE IGN 4 SIG CKP SENS SIG IGN 6 CTRL IGN 2 CTRL IGN B+ IGN PCM CLASS 2 SERIAL DATA IGN PCM/ECM CLASS 2 SERIAL DATA IGNITION 1 IGNITION 1 VOLTAGE IGNITION KEY ILLUM DRIVER ILLUM ILLUM INFLATABLE ELECTRONIC RESTRAINT COMPASS SENSING, MODULE DIAGNOSTIC MODULE INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM INJ 2 CTRL INJ 1 CTRL INJ 6 CTRL INJ 4 CTRL INJ 3 CTRL INJ 5 CTRL EVAP SOL CTRL GROUND KS 2 SIG INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER IPC CLASS 2 SER DATA IPC CLASS 2 SERIAL DATA IPC CLASS 2 SERIAL DATA PASS SEAT BELT IND IPC/BCM CLASS 2 SERIAL DATA ISS LOW SIG KEY IN IGNITION KEYPAD SIGNAL KEYPAD SUPPLY VOLTAGE KS 1 SIG L AUD SIG + R AUD SIG + LAN BUS + LATE PRODUCTION LED SIGNAL LEFT AMBER IND LEFT FRONT INLET LEFT FRONT OUTLET LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LEFT REAR OUTLET LEFT RIGHT LEFT STEERING WHEEL CONTROLS LEFT/ RIGHT UP/ DOWN LF DR AJAR SW SIG LO TRACTION LOGIC IGN LOW FAN LOW REF LOW REF CLASS 2 SERIAL A/C COMP CLUTCH LOW REF HIGH SPD COOLING LOW SPD COOLING CLASS 2 SERIAL A/C COMP CLUTCH LOW REF OIL PRES SIG IGN 5 CTRL IGN 1 CTRL GEN TO SIG LOW REF PPL LOW WASHER FLUID IND SIG LOWER RIGHT LR DOOR OPEN SW SIG RF DOOR AJAR SW SIG REAR DEFOG RLY CTRL LR DR AJAR SW SIG LT DK MAF IAT MANUAL A/C MANUAL A/C AUTOMATIC A/C MANUAL AUTO A/C A/C MESSAGE CENTER MESSAGE CENTER LOW WASHER FLUID MESSAGE CENTER TCS FAIL MESSAGE REQUEST MICRO PHONE MIL CONTROL LOW REF LOW REF MODE DOOR A MODE DOOR B NAVIGATION SYSTEM NAVIGATION SYSTEM 6105 5069 2759 NEAR AIR CLEANER ASSEMBLY) OF DASH) OFF HEAD OFF MIN LOW HIGH OIL PRESS SW ON ACCUMULATOR) ON IND. ONSTAR IND ONSTAR KEYPAD OUT IN OVERHEAD CONSOLE READING LAMPS P R N D 3 2 1 P/N SIG EVAP SOL CTRL PARK AUTO PARK AUTO OFF PARK BRAKE SW SIG PARK SW SIG PARK/NEUTRAL SIGNAL PAS DR LK SW UNLK SIG PASSENGER DRIVER PASSENGER OUTSIDE REARVIEW MIRROR PASSENGER SEAT, APPROXIMATELY 26 CM FROM SECOND PC SOL PCM CLASS 2 SER DATA PCM CLASS 2 SERIAL DATA PCM CLASS 2 SERIAL DATA UART SERIAL DATA PRIMARY PCM/ECM CLASS 2 SERIAL DATA PCM/ECM CLASS 2 SERIAL DATA IGN PHONE IND POWER DISTRIBUTION SYSTEM POWER TOPS SYSTEM PPL 18 19 PPL CMP SIG PPL CMP SOL CTRL CMP SOL CTRL TAC MTR CTRL-1 PPL DK PPL FUEL LEV SIG MAF SIG APP SENS 2 SIG PPL FUEL LEVEL SIG CRUISE SIG PPL FUEL LVEL SIG PPL HEADLAMP DIMMER SW PPL LOW REF PPL LOW REF A/C REF PRES STOP LP SW IAT SIG TANK PRES SIG PPL ON SIG PPL PASS SEAT BELT IND PPL PPL PPL VSS LOW SIG PC SOL VLV CTRL PPL VSS SIG LOW PRIMARY UART PWR SEAT CIRCUIT BREAKER PWR WNDW CIRCUIT BREAKER PWR/SEAT CIRCUIT BREAKER PWR/WNDW CIRCUIT BREAKER R SEAT BELT SW RADIO CLASS 2 SERIAL DATA READER/ EXCITER REAR DEFOG RLY CTRL REAR DOWN REAR LID AJAR SW REAR UP REAR WINDOW REAR WINDOW DEFOGGER GRID REAR- WARD RECIRATION A RECIRATION B RECIRCULATION IND REQ TORQ SIG RES+ RF DR AJAR SW SIG RIGHT COOLING FAN RIGHT FRONT INLET RIGHT HEADLAMP ON FRAME) RIGHT HIGH BEAM HEADLAMP RIGHT LEFT FRONT REAR INLET OUTLET RIGHT LOW BEAM HEADLAMP RIGHT REAR RIGHT REAR INLET RIGHT STEERING WHEEL CONTROLS RIGHT STRUT TOWER) RLY CTRL FAN RLY CTRL RR DR AJAR SW SIG SATELLITE RADIO CIRCUIT SDM CLASS 2 SERIAL DATA SDM CLASS 2 SERIAL DATA LEFT SEAT BELT SW RIGHT SEAT BELT SW SEATBELT IND SEATS SYSTEM SEC UART SEEK DOWN SEEK UP SER DATA PRIMARY SER DATA SECONDARY SERIAL DATA SERVICE THEFT SYSTEM SET- SET/COAST RESUME/ ACCELERATE SIGNAL SHIFT INTERLOCK SYSTEM SHIFT SOL SHORTING BAR SIDE OF DASH) SIDE OF DASH, IN HVAC MODULE) SIDE OF DRIVER'S DOOR) SOLID STATE SPARK PLUG SPARK PLUGS SPEED CTRL SPEED CTRL MODE DOOR B MODE DOOR A SPLICE PACK STAGE 1 STAGE 2 START ENABLE RLY CTRL STARTING DISABLED STARTING/ CHARGING SYSTEM STARTING/ CHARGING SYSTEM 625 540 464 STARTING/CHARGING SYSTEM STEERING COLUMN) STEERING WHEEL) STOP LP SW SIG SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLY VOLTAGE SW SIG TAC MTR CTRL 2 TAC MTR CTRL 2 TP SENS 2 SIG TAC MTR CTRL 1 LOW REF PPL TCC REL SW SIG TCC SOL TCC SW SIG TEMPERATURE CONTROL SW TFT SENS SIG THEFT DETERRENT EXCITER MODULE THEFT LED THEFT SYSTEM NOT PROGRAMMED TOWARDS INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE) TOWARDS INLINE TP SIG MAP SIG TR SW A TR SW B TR SW C TR SW P TRACTION CONTROL OFF IND TRANS RANGE "B" TRANS RANGE "C" TRUNK AJAR IND TRUNK OPEN TRUNK RELEASE CONTROL UART SERIAL DATA PRIMARY UART SERIAL DATA SECONDARY UP DOWN UP ILLUM VEH SPD SIG VEHICLE SPD VEHICLE SPEED VEHICLE SPEED SIG VEHICLE SPEED SIGNAL VOL DOWN VOL UP VSS GMLAN BUS+ MAIN RLY CTRL LOW REF LOW REF VSS HIGH SIG VSS HIGH SIGNAL VSS LOW SIG VSS LOW SIGNAL VSS SIG VSS SIG HIGH W/ ACTIVE BRAKE CONTROL W/ CONSOLE SHIFT W/ DIGITAL AUDIO SYSTEM W/ DRIVER INFO CENTER DISPLAY W/ DRIVER POWER LUMBAR CONTROL SEAT W/ HEATED SEATS W/ INSIDE REARVIEW MIRROR W/ ONSTAR W/ PARK ASSIST W/ POWER SEATS W/ SIDE IMPACT W/ SUNROOF W/ SUNSHADE MIRROR W/ TRACTION CONTROL W/ VEHICLE COMMUNICATION SYSTEM W/O ACTIVE BRAKE CONTROL W/O DIGITAL AUDIO SYSTEM W/O DRIVER POWER LUMBAR CONTROL SEAT W/O POWER SEATS W/O STABILITY CONTROL W/O SUNROOF W/O W/ POWER POWER SEATS SEATS WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW HIGH SIG WINDSHIELD WIPER SW LOW SIG WIPER RLY CTRL WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM WIPER/WASHER SYSTEM YAW RATE TEST CNTRL GROUND YAW RATE SEN SIG