Buick LeSabre VIII (2000-2005) computer data lines system Wiring diagrams

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

ALDL FUSE 4 BLK WIRE BODY FUSE 26 COMPUTER DATA LINES SYSTEM F/TNK DR LOCK RELAY 47 F/TNK DR REL RELAY 50 FUEL DOOR LOCK FUEL DOOR RELEASE ACTUATOR HOT AT ALL TIMES LT GRN WIRE ORG/ WIRE PNK WIRE PPL PPL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) SPLICE PACK TAN WIRE WHT WIRE

15 11 4 BUS INTERFACE BATTERY (B+) GROUND BATTERY (B+) GROUND BATTERY (B+) GROUND BATTERY (B+) BUS INTERFACE BUS INTERFACE GROUND SERIAL DATA BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM (HEATED MIRROR) DK GRN/WHT WIRE DN MIRROR DN INPUT DOWN CTRL UP CTRL RIGHT CTRL LEFT CTRL DRIVER DOOR LOCK SWITCH DRIVER DOOR MODULE (DDM) DRIVER DOOR SWITCH ASEMBLY DRV MDL FUSE EC FEED EC RETURN FRONT PASSENGER DOOR MODULE (FPDM) GND REVERSE SIG GROUND BATTERY B+ BUS INTERFACE GRY WIRE HEATING ELEMENT HEATING ELEMENT VERTICAL MOTOR HORIZONTAL MOTOR HOT AT ALL TIMES HOT IN ON IGN 3 RR FUSE INSIDE REAR VIEW MIRROR KEYPAD LED KEYPAD LED KEYPAD PWR KEYPAD SIGNAL KEYPAD SIGNAL KEYPAD PWR IGN 3 VOLTAGE KEYPAD LED KEYPAD LED EC RETURN L MIRROR INPUT LEFT MIRROR LEFT MIRROR L INPUT LEFT REAR DOOR MODULE RIGHT REAR DOOR MODULE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE NIGHT INPUT SIG AUTOMATIC DAY PNK WIRE ORG/ WIRE PASS MDL FUSE PNK EC RERURN EC FEED DOWN CTRL UP CTRL RIGHT CTRL LEFT CTRL WIRE PNK WIRE PPL PWR WDO CIRCUIT BREAKER R MIRROR INPUT REAR FUSE BLOCK (UNDER LEFT REAR SEAT) REVERSE LAMP RELAY RIGHT MIRROR RIGHT MIRROR R INPUT TAN/WHT WIRE UP MIRROR UP INPUT VEHICLE INTERFACE UNIT (VIU) (2001 ONLY) VERTICAL MOTOR YEL WIRE YEL/BLK WIRE

AM/FM REAR GLASS ANTENNA FM FRONT GLASS ANTENNA ANTENNA DATA PPL PPL PPL AUDIO FUSE 21 BARE BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CASE GND CASE GND FM COMP SIG ENABLE 3 2 1 COAX ANT IN (SAT) COAX ANT IN (TERR) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 COMPUTER DATA LINES SYSTEM DASH INTEGRATION MODULE (BEHIND RIGHT SIDE OF DASH) DATA DIGITAL RADIO ANTENNA DIGITAL RADIO RECEIVER DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GROUND AUD OUT - DRAIN WIRE GRY WIRE HOT AT ALL TIMES INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER LEFT REAR SPEAKER LEFT SIDE STEERING WHEEL CONTROLS LF AUD + RT AUD + LF SPKR LF SPKR RR SPKR RR SPKR GND LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PPL PPL FM COMP SIG PPL PPL PPL SERIAL DATA B+ RADIO RADIO ANTENNA MODULE (ON CENTER REAR OF HEADLINER) REAR FUSE BLOCK RED/WHT WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER RIGHT REAR SPEAKER RIGHT SIDE STEERING WHEEL CONTROLS SDAR FUSE 15 SPLICE PACK STEERING COLUMN FUSE HOLDER SWITCH FUSE TAN WIRE WHT WIRE YEL WIRE

1807 1807 PPL PPL SERIAL DATA CLASS 2 SERIAL DATA CLASS 2 23 76 IGN CRANK SENSE STARTER CTRL BATTERY BLK WIRE CIRCUIT BREAKER COMPUTER DATA LINES SYSTEM GROUND DISTRIBUTION SYSTEM (DASH INTEGRATION MODULE (DIM)) HOLD- IN COIL HOT IN RUN, START IGN SW FUSE IGNITION SWTCH LOCK UNLOCK NCA WIRE ORG/ WIRE PCM BATT FUSE POWER DISTRIBUTION SYSTEM POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER HOUSING) PPL PULL- IN COIL REAR FUSE BLOCK (UNDER LEFT REAR SEAT) RUN WIRE START 1 RELAY STARTER MOTOR STARTER SOLENOID STARTING/ CHARGING SYSTEM (CHARGING CIRCUIT) UNDERHOOD FUSE BLOCK (RIGHT FRONT SIDE OF ENGINE COMPARTMENT) YEL WIRE

AIR BAG INDICATOR BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CASE GROUND CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DASH INTEGRATION MODULE (DIM) (BEHIND RIGHT SIDE OF DASH, UNDER SOUND INSULATOR) DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE FORWARD DISCRIMINATING SENSOR GRY WIRE HIGH CONTROL CLASS 2 SERIAL DATA PPL HIGH CONTROL LOW CONTROL LOW CONTROL HOT IN RUN, START IGNITION INFLATABLE RESTRAINT I/P MODULE INFLATABLE RESTRAINT SIDE IMPACT MODULE- LEFT FRONT INFLATABLE RESTRAINT SIDE IMPACT MODULE- RIGHT FRONT INFLATABLE RESTRAINT STEERING WHEEL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT PANEL CLUSTER (IPC) IPM BREAKOUT) NCA WIRE PNK PPL WIRE PNK WIRE PPL PPL CLASS 2 SERIAL DATA PPL DATA LINK CONNECTOR (DLC) (PARTIAL) (UNDER LOWER LEFT SIDE OF DASH) REAR FUSE BLOCK (UNDER LEFT REAR SEAT) SEAT BELT SW LEFT SEAT BELT SW LOW REF SENSOR SIGNAL SENSOR LOW REFERENCE SHORTING BAR SHORTING BAR SHORTING BAR SIR FUSE SOLID STATE TAN WIRE WHT WIRE YEL WIRE

ALDL FUSE BLK WIRE BODY FUSE CLASS II DATA COMPUTER DATA LINES SYSTEM DRIVER'S DOOR MODULE (IN LEFT FRONT DOOR) DRIVER'S DOOR SWITCH ASSEMBLY SIMPLE BUS GROUND HOT AT ALL TIMES LT BLU WIRE NCA WIRE ORG/ WIRE PPL REAR COMPARTMENT LID RELEASE ACTUATOR (ON CENTER REAR OF LUGGAGE COMPT) REAR COMPARTMENT LID RELEASE SWITCH REAR FUSE BLOCK (UNDER LEFT REAR SEAT) REAR INTEGRATION MODULE (RIM) (BEHIND UPPER LEFT REAR SEAT CUSHION) RR COMPT LID RELEASE ACTUATOR CONTROL SIMPLE BUS SW INPUT TAN WIRE TRK REL RELAY W/ UNIVERSAL GARAGE DOOR OPENER WHT WIRE

1807 1807 PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA 1807 1807 PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA KEY IN SIGNAL BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DASH INTEGRATION MODULE (DIM) (BEHIND RIGHT SIDE OF DASH, UNDER SOUND INSULATOR) DK BLU WIRE DOOR OPEN DRIVER DOOR LOCK ACTUATOR DRIVER'S DOOR MODULE (DDM) GROUND HEADLAMP SWITCH PARK LAMP SWITCH HEATER-A/C CONTROL IGNITION KEY ALARM SWITCH (CLOSED W/KEY IN IGNITION) INSTRUMENT PANEL CLUSTER (IPC) INSTRUMENT PANEL INTEGRATION MODULE (IPM) (BEHIND LEFT SIDE OF DASH) KEY IN IGNITION SW CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA 1807 1807 PPL PPL LEFT FRONT SEAT BELT SWITCH (CLOSED W/SEAT BELT UNBUCKLED) LEFT TURN LEFT TURN RIGHT TURN PARK BRAKE SW SIG LF DOOR OPEN SWITCH SIGNAL LT BLU WIRE LT GRN WIRE NCA WIRE OFF PARK PARK BRAKE SWITCH (CLOSED W/PARK BRAKE APPLIED) PARK LAMP SWITCH ON SIGNAL POWERTRAIN CONTROL MODULE (PCM) (IN AIR CLEANER HOUSING) PPL PPL CLASS 2 SERIAL DATA PPL PPL CLASS 2 SERIAL DATA CLASS 2 SERIAL DATA RADIO RIGHT TURN TAN WIRE W/AUTOMATIC AIR CONDITIONING W/MANUAL AIR CONDITIONING WHT WIRE