Buick LeSabre VIII (2000-2005) lt blu/blk Wiring diagrams

AIR TEMPERATURE SENSOR (INSIDE) (ON DASH, RIGHT OF STEERING COLUMN) AIR TEMPERATURE SENSOR (LOWER LEFT) (BEHIND LEFT DASH AIR DISCHARGE VENT) AIR TEMPERATURE SENSOR (LOWER RIGHT) (BEHIND RIGHT DASH AIR DISCHARGE VENT) AIR TEMPERATURE SENSOR (OUTSIDE) (ON HOOD LATCH SUPPORT) AIR TEMPERATURE SENSOR (UPPER LEFT) (BEHIND LEFT DASH AIR DISCHARGE VENT) AIR TEMPERATURE SENSOR (UPPER RIGHT) (BEHIND RIGHT DASH AIR DISCHARGE VENT) BACKLIGHT LAMPS CTRL BLK WIRE BLK/WHT WIRE BLWR SP CTRL GROUND BREAKOUT) BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE GRD GRD IGN 3 VOLT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON HVAC (BATT) FUSE 37 HVAC BLO FUSE 2 HVAC CONTROL MODULE HVAC FUSE 33 IGN 3 FUSE 34 INSTRUMENT PANEL INTEGRATION MODULE (IPM) (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT BLU/BLK WIRE LT GRN/BLK WIRE MODE ACTUATOR (ON LEFT SIDE OF HVAC MODULE) ORG/ WIRE OUT PASS MDL FUSE 25 PPL PPL CLOCK SIG MOD SIG PPL PPL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RECIRCULATION ACTUATOR (UNDER RIGHT SIDE OF DASH, RIGHT OF BLOWER MOTOR) SOLID STATE SPLICE PACK SUNLOAD SENSOR ASSEMBLY (ON TOP CENTER OF DASH) TAN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

55 72 64 VEHICLE SPEED OUT DISABLE OUTPUT VSS HIGH ABS/TCC SWITCH (NEAR BRAKE PEDAL) BLK WIRE CR CONT FUSE CRUISE CONTROL MODULE (ON LEFT SIDE OF ENGINE COMPT, ON STRUT TOWER) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGAGED INPUT GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON, START IGN 1 FUSE INFLATABLE RESTRAINT STEERING WHEELS MODULE COIL LEFT STEERING WHEELS CONTROLS LT BLU/BLK WIRE NCA WIRE ORG/ WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER HOUSING) PPL PPL PPL PPL VSS LOW REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RESUME/ ACCEL RIGHT STEERING WHEELS CONTROLS SET/ COAST SPLICE PACK STEERING COLUMN FUSE HOLDER STOP LP FUSE STOPLAMP SWITCH (ON BRAKE PEDAL BRACKET) TRANSMISSION SYSTEM UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE) WHT WIRE YEL WIRE

1 3 4 6 7 8 KEY CYL IN DOOR AJAR GROUND ACTUATOR DR ACTUATOR DR GROUND 4 5 6 11 14 15 GROUND LOCK UNLOCK' BATTERY GROUND SBI 6 7 8 9 10 UNLOCK LOCK GROUND BATTERY SBI AIR CONDITIONING SYSTEMS AJAR AJAR CYLINDER SWITCH BATTERY GROUND BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM CYLINDER SWITCH DK BLU WIRE DOOR OPEN DOOR AJAR GROUND SIB GROUND ACTUATOR DR ACTUATOR DR BATTERY DRIVER DOOR LOCK ACTUATOR DRIVER DOOR LOCK SWITCH DRIVER DOOR MODULE DRIVER DOOR SWITCH ASSEMBLY DRVMDL FUSE 7 FRONT PASSENGER DOOR LOCK ACTUATOR FRONT PASSENGER DOOR MODULE GRD GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES IGN SW FUSE 29 LEFT REAR DOOR LOCK ACTUATOR LEFT REAR DOOR MODULE LOCK LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PASS MDL FUSE 25 PASSENGER DOOR LOCK SWITCH PPL PWR WDO CIRCUIT BREAKER 57 REAR FUSE BLOCK RED/BLK WIRE REMOTE CONTROL DOOR LOCK RECEIVER (BELOW REAR SHELF) RIGHT REAR DOOR LOCK ACTUATOR RIGHT REAR DOOR LOCK ACTUATOR LEFT REAR DOOR LOCK ACTUATOR RIGHT REAR DOOR MODULE RRDR MDL FUSE 18 SBI GROUND BATTERY BATTERY SBI GROUND CLASS 2 DATA SEATS SYSTEM SERIAL DATA TAN WIRE TAN/WHT WIRE UNLOCK WHT WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DASH INTEGRATION MODULE (DIM) (RIGHT SIDE OF DASH) DIMMER SWITCH DK GRN WIRE DRL RELAY FLASH TO PASS SWITCH FOG/ DRL FUSE GRN WIRE HDHI- BML FUSE HDHI- BMR FUSE HDLO- BML FUSE HDLO- BMR FUSE HDLP HI BM RELAY HDLP LO BM RELAY HEADLAMP BEAM SWITCH HEADLAMP DIMMER SWITCH HEADLAMP SWITCH HI LOW HOT AT ALL TIMES I/P FUSE INSTRUMENT PANEL INTEGRATION MODULE (BEHIND LEFT SIDE OF DASH) INTERIOR LAMP SWITCH LEFT HIGH BEAM HEAD- LAMP LEFT LOW BEAM HEAD- LAMP LIGHTS ON IND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PK LP SWITCH PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL PPL PPL/WHT WIRE PRK LP RELAY REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RIGHT HIGH BEAM HEAD- LAMP RIGHT LOW BEAM HEAD- LAMP SPLICE PACK TAN WIRE TWILIGHT DELAY SW UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) W/ CORNERING LAMPS WHT WIRE WIPER/ WASHER SYSTEM YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DASH INTEGRATION MODULE (DIM) (RIGHT SIDE OF DASH) DIMMER SWITCH DK GRN WIRE DRL RELAY FLASH TO PASS SWITCH FOG/ DRL FUSE GRN WIRE HDHI- BML FUSE HDHI- BMR FUSE HDLO- BML FUSE HDLO- BMR FUSE HDLP HI BM RELAY HDLP LO BM RELAY HEADLAMP BEAM SWITCH HEADLAMP DIMMER SWITCH HEADLAMP SWITCH HI LOW HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND LEFT SIDE OF DASH) I/P FUSE INTERIOR LAMP SWITCH LEFT HIGH BEAM HEAD- LAMP LEFT LOW BEAM HEAD- LAMP LIGHTS ON IND LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE ORG/ WIRE PK LP SWITCH PNK WIRE PNK/BLK WIRE PNK/WHT WIRE PPL PPL PPL PPL/WHT WIRE PRK LP RELAY REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RIGHT HIGH BEAM HEAD- LAMP RIGHT LOW BEAM HEAD- LAMP SPLICE PACK TAN WIRE TWILIGHT DELAY SW UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPT) W/ CORNERING LAMPS WHT WIRE WIPER/ WASHER SYSTEM YEL WIRE YEL/BLK WIRE

5 VOLT REF LOW MODE DOOR POS SEN SIG AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM BATTERY POSITIVE VOLTAGE IGNITION 3 VOLTAGE BLK WIRE BLK/WHT WIRE BLOWER SPEED CTRL SIG BRN WIRE DK BLU WIRE DK GRN WIRE GROUND GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON HVAC BATT FUSE HVAC FUSE I/P LAMPS DIMMER SW SIG 5 VOLT REF IGN-3 RELAY INSTRUMENT PANEL INTEGRATION MODULE (IPM) (BEHIND LEFT SIDE OF DASH) INTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM KEY IN IGNITION SIG TWILIGHT SENTINEL DELAY SIG PPL LOWER RT AIR TEMP SEN SIG LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) SPLICE PACK TAN WIRE TRACTION CTRL SW SIG DR HVAC CONTROL ASSBLY SIG DR HVAC CTRL ASSBLY CLK SIG WARNINGS SYSTEM HEADLIGHTS SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

AIR TEMPERATURE ACTUATOR (LEFT FRONT SIDE OF BLOWER MOTOR) AMBIENT LIGHT ANTI-LOCK BRAKES SYSTEM BACKLIGHT CTRL GRD BLK WIRE BLOWER CONTROL MODULE (UNDER RIGHT SIDE OF DASH, ABOVE BLOWER MOTOR) BLOWER MOTOR (UNDER RIGHT SIDE OF DASH, ABOVE SOUND INSULATOR) BLWR SP INPUT BATTERY GRD BLWR MTR GRD SPEED CNTL BLWR VOLT BLWR SPEED CNTRL CLASS 2 SERIAL CLASS 2 SERIAL BRN WIRE COMPUTER DATA LINES SYSTEM DIMMER SW SIG TWILIGHT SENTINEL LOW REF DK BLU WIRE DK GRN WIRE GRN WIRE GRY/BLK WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON HVAC (BATT) FUSE 37 HVAC BLO FUSE 2 HVAC CONTROL MODULE HVAC FUSE 33 IGN 3 VOLTAGE LT BLU WIRE LT BLU/BLK WIRE LT GRN WIRE MODE ACTUATOR (LEFT SIDE OF HVAC ASSEMBLY) ORG/ WIRE PNK/BLK WIRE PPL PPL PPL REAR FUSE BLOCK RECIRCULATION ACTUATOR SOLID STATE SPLICE PACK TRAC CNTRL SW WARNINGS SYSTEM WHT WIRE YEL WIRE

1744 808 FUEL INJ 1 CONTROL SENSOR RETURN (EOP) 400 401 PPL ANTI-LOCK BRAKE SYSTEM 43 44 FUEL INJ 6 CONTROL SHIFT SOL B CONTROL 46 47 48 FUEL INJ 4 CONTROL FUEL INJ 5 CONTROL REFERENCE LOW 772 492 TRANS RANGE SW B MAF SENSOR INPUT BLK WIRE BLK/WHT WIRE BLU WIRE BONNEVILLE LE SABRE BRN/WHT WIRE BYPASS CKP SYNC SIG CMP OUTPUT CMP SIGNAL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DESIRED TORQUE INPUT CRUISE DISABLE/INHIBIT FUEL INJ 2 CONTROL DIS FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE ECT SENSOR GROUND MAP SENSOR GROUND GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN, START IAC COIL B HIGH 39 40 41 42 IGN CONTROL IGN VOLTAGE IGNITION IGNITION BATTERY IGNITION CONTROL MODULE (ICM) (ON TOP LEFT FRONT OF ENG) IGNITION SWITCH (PIGTAILED FOR LE SABRE) INSTRUMENT CLUSTER SYSTEM (VEHICLE SPEED) KNOCK SENSOR (KS) BANK 2 (ON LOWER REAR OF ENG BLOCK, NEAR OIL FILTER) LOCK OFF LT BLU WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MAP SENSOR +5 V MASS AIRFLOW (MAF) SENSOR (TOP OF THROTTLE BODY) NOT USED ORG/ WIRE ORG/BLK WIRE PCM GROUND IAT SENSOR GROUND PNK (OR PNK) WIRE PNK (OR PNK/BLK) WIRE PNK PNK 9 10 WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER HOUSING) PPL PPL PPL PPL TCC SWITCH INPUT EGR POS SENS GROUND EGR CONTROL GROUND PPL/WHT WIRE PURGE SOLENOID (TOP OF ENGINE) RED/BLK WIRE REF LOW RUN WIRE SHIFT SOL A CONTROL HI SPEED COOL FAN LO SPEED COOL FAN CMP INPUT TAN WIRE TAN/BLK WIRE TRANS FUSE UNDER- HOOD FUSE BLOCK PCM BATT FUSE VEHICLE SPEED SENSOR (RIGHT FRONT OF TRANSAXLE) EVAPORATIVE EMISSIONS CANISTER WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2-3 SHIFT SOL 1-2 SHIFT SOL AUTOMATIC TRANSAXLE AUTOMATIC TRANSAXLE FLUID PRESSURE MANUAL VALVE POSITION SWITCH AUTOMATIC TRANSAXLE FLUID TEMPERATURE SENSOR AUTOMATIC TRANSAXLE INPUT SHAFT SPEED SENSOR AUTOMATIC TRANSAXLE INTERNAL MODE SWITCH BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CAMSHAFT POSITION (CMP) SENSOR (FRONT OF ENG, BELOW WATER PUMP) CRANKSHAFT POSITION DK BLU/WHT WIRE FUEL INJEC- TORS GRN WIRE GRY WIRE GRY/WHT WIRE HOT IN RUN, START IGN 1 FUSE INJR 1 FUSE INJR 2 FUSE LT BLU WIRE LT BLU/ BLK WIRE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/ BLK WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE ORG/BLK WIRE PNK (OR WIRE PNK PNK 9 10 WIRE PNK WIRE PNK/BLK WIRE PPL PPL CRUISE CONTROL SYSTEM PPL PRESSURE CONTROL SOL REAR FUSE BLOCK RED WIRE RED/BLK WIRE TAN WIRE TCC PWM SOL TCC RELEASE SWITCH TCC/ CRUISE RELEASE SWITCH (NEAR BRAKE PEDAL) UNDER- HOOD FUSE BLOCK WHT DK GRN/ WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

5 VOLT REFERENCE A 5 VOLT REFERENCE A 5 VOLT REFERENCE B SENSOR GROUND A/C COMP RELAY CONTROL A/C SYSTEM A/T FLUID TEMP INPUT FUEL LEVEL INPUT ANTI-LOCK BRAKE SYSTEM BLK WIRE BLK/WHT WIRE BOOST CONTROL SOLENOID (VIN 1) BRN WIRE BRN/WHT WIRE CRUISE CONTROL SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG OIL LEVEL SW INPUT CRUISE STATUS BRAKE PEDAL SW OUT GEN TERM L CONTROL ENGINE COOLANT TEMPERATURE (ECT) SENSOR EVAP SOLENOID CONTROL FUEL PUMP RELAY CONTROL EGR VALVE CONTROL MIL CONTROL EVAPORATIVE EMISSIONS (EVAP) CANISTER VENT VALVE FUEL INJ 3 CONTROL FUEL TANK PRESS SENSOR TRANS RANGE SW C INPUT FUEL TANK SENDER GRY (OR GRY/BLK) WIRE GRY WIRE HEATED OXYGEN BANK 1 SENSOR 1 (IN RIGHT EXHAUST MANIFOLD) HEATED OXYGEN BANK 1 SENSOR 2 (REAR OF CATALYTIC CONVERTER) HOT IN RUN AND START HOT IN RUN, START IAC COIL A HIGH TACH SIGNAL DELIVERED TORQUE CONTROL IAC COIL A LOW PRESS SOL HIGH CONTROL PRESS SOL LOW CONTROL IAC COIL B LOW IAT SENSOR INPUT IDLE AIR CONTROL (IAC) VALVE (ON THROTTLE BODY ASSEMBLY) IGN 1 FUSE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE NCA WIRE OIL PRESSURE SIGNAL OXY SEN FUSE PCM IGN FUSE PNK (OR PNK/BLK) WIRE PNK 1 2 3 4 5 6 7 8 9 10 11 12 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER HOUSING) PPL PPL PPL REAR FUSE BLOCK RED WIRE RED/BLK WIRE STARTER RELAY OUTPUT BOOST SOLENOID CONTROL TCC PWM SOL CONTROL 1724 418 STARTING/CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TOP OF TRANSMISSION) TRANS RANGE SW A INPUT TRANS TCC RELEASE SW IN UNDER- HOOD FUSE BLOCK VENT SOL FUSE WHT WIRE YEL WIRE YEL/BLK WIRE