Buick Century VI (1997-2005) dk grn Wiring diagrams

BACK BLK WIRE DK BLU WIRE DK GRN WIRE DRIVER SEAT ADJUSTER MOTOR ASSEMBLY DRIVER SEAT ADJUSTER SWITCH ENTIRE SEAT ENTIRE SEAT DOWN ENTIRE SEAT UP FOR- WARD FOR- WARD BACK FRONT HEIGHT FRONT HEIGHT FRONT PASSENGER SEAT ADJUSTER MOTOR ASSEMBLY FRONT PASSENGER SEAT ADJUSTER SWITCH FRONT VERTICAL ADJUSTER MOTOR GRN WIRE HORIZONTAL ADJUSTER MOTOR HOT AT ALL TIMES POWER SEATS CIRCUIT BREAKER I/P FUSE BLOCK LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE REAR HEIGHT REAR HEIGHT FRONT HEIGHT FRONT HEIGHT REAR VERTICAL ADJUSTER MOTOR TAN WIRE YEL WIRE

BATTERY BLK WIRE CHARGE IND CLUSTER FUSE COMPUTER DATA LINES DK GRN WIRE FUSIBLE LINK (10 GA-RUST) GENERATOR GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INSTRUMENT CLUSTER L TERM MONITOR ORG/ WIRE PNK WIRE RED WIRE SER DATA CLASS 2 SOLID STATE STARTER UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT FRONT STRUT TOWER) GEN FUSE

AMBIENT LIGHT SENSOR (TOP RIGHT SIDE OF DASH, AT BASE OF WINDSHIELD) B+ B- BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE BRN/WHT WIRE CENTER HIGH MOUNTED STOPLAMP (CHMSL) CORN- ERING LAMP CORNERING LAMP DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DRL AMBIENT LIGHT GROUND REF DRL AMBIENT LIGHT SIGNAL FRT PARK LPS FUSE GRN WIRE GRY/BLK WIRE HAZARD HAZARD FUSE HEADLAMP RELAY (BEHIND GLOVE BOX, MOUNTED TO UNDERSIDE OF CROSS-CAR BEAM) HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) INSTRUMENT PANEL CLUSTER (IPC) LEFT LEFT HEAD- LAMP ASSEMBLY LEFT REAR MARKER LAMP LEFT REAR PARK LAMPS LEFT TAIL/ TURN SIGNAL/ STOP- LAMP LEFT TURN INDICATOR LEFT TURN SIGNAL LP PARK FUSE LT BLU WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE LT LT LT PNK WIRE NCA WIRE NORMAL OFF ORG/ WIRE PARK PARK LAMP RELAY (BEHIND RIGHT SIDE OF DASH) PARK/ TURN SIGNAL LAMP PARK/ TURN SIGNAL LAMP SIDE MARKER LAMP PNK WIRE POWER DISTRIBUTION PPL RIGHT RIGHT HEAD LAMP ASSEMBLY RIGHT REAR MARKER LAMP RIGHT REAR PARK LAMPS REAR LICENSE LAMPS RIGHT TAIL/ TURN SIGNAL/ STOP- LAMP RIGHT TURN INDICATOR RIGHT TURN SIGNAL SIDE MARKER LAMP STOP LAMPS FUSE STOPLIGHT SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) TAIL LAMPS, LIC LAMPS FUSE TURN SIGNAL TURN SIGNAL/ HAZARD FLASHER MODULE (BELOW LEFT SIDE OF DASH) TURN SIGNAL/MULTIFUNCTION SWITCH) TURN SIGNALS, CORN LPS FUSE UNDERHOOD FUSE BLOCK UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BODY CONTROL MODULE (LEFT OF STEERING COLUMN) HORN OUTPUT DK GRN WIRE HIGH NOTE HORN HORN FUSE HORN RELAY HORN SWITCH HORNS (BEHIND RIGHT FRONT FASCIA) HOT AT ALL TIMES INFLATABLE RESTRAINT STEERING WHEEL MODULE LOW NOTE HORN SLIP RING SPRING STEERING COLUMN) UNDERHOOD ACCESSORY WIRING JUNCTION BLOCK (MOUNTED ON RIGHT STRUT TOWER)

1550 209 1036 PPL 1816 39 PNK WIRE 55 58 SPEED SENSOR SRL DATA 8 1500 893 PPL PNK WIRE AIR BAG IND ANTILOCK IND BCM BCM OR IPC SERIAL DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE IND BRN/WHT WIRE CHANGE OIL IND. CHARGE IND CLUSTER FUSE CLUSTER LOGIC COOLANT TEMP IND CRANK SIGNAL BCM, CLUSTER FUSE CRUISE CONTROL SYSTEM CRUISE IND DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) DK BLU WIRE DK BLU/WHT (OR BLU) WIRE DK GRN WIRE DK GRN/WHT WIRE DOOR/TRUNK AJAR IND DRIVER INFORMATION DISPLAY SWITCH E/M EBCM ENGINE CONTROLS SYSTEM GROUND GRY WIRE HEADLIGHTS SYSTEM HIGH BEAM IND HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN, BULB TEST OR START HVAC CONTROL MODULE I/P FUSE BLOCK IGN 01, BCM, PCM, CLUSTER FUSE IGNITION VOLTAGE ILLUMINATION (5 BULBS) INSTRUMENT CLUSTER LEFT TURN IND LOW COOLANT IND LOW FUEL IND LOW OIL IND LOW OIL PRESSURE IND LOW TIRE IND LOW TRAC IND LOW WASHER IND LT BLU WIRE LT BLU/WHT WIRE LT GRN WIRE MODE PNK WIRE ORG/ WIRE PCM PCM CLASS 2 SERIAL DATA PCM, ABS BCM, CLUSTER LOGIC SERIAL DATA PERF SHIFT IND PNK WIRE POWERTRAIN CONTROL MODULE (LEFT FRONT SIDE OF ENGINE COMPT, IN AIR CLEANER ASSY) PPL RADIO, HVAC, RFA, CLUSTER, CEL TEL FUSE RESET+ RIGHT TURN IND RIGHT TURN SIGNAL GND SEAT BELT IND SECURITY IND SERIAL DATA SERVICE VEHICLE SOON IND SPEEDO- METER GAUGE TACHO- METER GAUGE SPLICE PACK SRL DATA TRAC OFF IND TRIP RESET INPUT TRIP RESET SWITCH VEHICLE SPEED LEFT TURN SIGNAL GND VF DISPLAY WHT WIRE YEL WIRE

A/T SHIFT LOCK CONTROL SWITCH BCM ACC FUSE BLK WIRE BODY CONTROL MODULE (BCM) BODY CONTROL MODULE (BCM) (BELOW LEFT SIDE OF DASH) BREAKOUT) BRN (OR DK BLU) WIRE BRN WIRE CRANK SIGNAL BCM, CLUSTER FUSE DK BLU WIRE DK GRN WIRE FROM GEN FUSE 21 (DIAGRAM 1 OF 3) FROM IGNITION SWITCH (DIAGRAM 2 OF 3) FROM INADV POWER BUS FUSE (DIAGRAM 1 OF 3) FROM R HEATED SEAT FUSE DIAGRAM (1 OF 3) FUSE 5 FUSE 8 FUSE BLOCK, UNDER- HOOD FUSE BLOCK- I/P FUSE BLOCK- UNDERHOOD GRY WIRE HEATER- A/C CONTROL CRUISE CONTROL SWITCH CRUISE CONTROL MODULE HVAC CONTROL MODULE RIGHT AIR TEMPERATURE ACTUATOR HVAC FUSE I/P HARN, RIGHT SIDE OF STEERING COLUMN, 13 CM FROM INSTRUMENT CLUSTER BREAKOUT) IGN 0,CLUSTER, PCM, BCM FUSE IGNITION SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL BREAKOUT) INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER (IPC) BODY CONTROL MODULE (BCM) LEFT AIR TEMPERATURE ACTUATOR LEFT RADIO CONTROL SWITCH LEFT FRONT WINDOW SWITCH SUNROOF MODULE LOCK LOCK OFF LOW BLOWER FUSE CRUISE FUSE NCA WIRE OFF ONSTAR FUSE ORG/ WIRE PARK LOCK FUSE (REGAL) PASSENGER SEAT HEATER SWITCH DRIVER SEAT HEATER SWITCH PNK WIRE POWER DROP CONNECTOR POWER DROP FUSE POWERTRAIN CONTROL MODULE (PCM) PPL PPL PPL PPL/ PPL/ PPL/ PWR WINDOWS PWR SUNROOF CIRCUIT BREAKER RADIO RADIO FUSE RADIO FUSE (W/O RAP) REAR WINDOW DEFOGGER RELAY RED WIRE REGAL RETAINED ACCESSORY POWER (RAP) RELAY RUN WIRE TO CRANK SIGNAL FUSE (DIAGRAM 2 OF 3) TO IGN MAIN RELAY 13 (DIAGRAM 3 OF 3) TO LOW BLOWER FUSE (DIAGRAM 2 OF 3) VACUUM CONTROL ASSEMBLY CRUISE CONTROL RELEASE SWITCH VEHICLE COMMUNI- CATIONS INTERFACE MODULE W/ ELECTRIC O/S MIRRORS W/ FOLD AWAY MIRRORS W/ RAP W/ RAP W/O RAP W/ SUN ROOF W/O RAP WHT WIRE WINDSHIELD WIPER MOTOR WIND- SHIELD WIPER/ WASHER SWITCH WIPER FUSE YEL WIRE

AM/FM ANT IN AUDIO AMPLIFIER (BELOW REAR SPEAKER SHELF, IN TRUNK) BARE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE E, C DATA FRONT WINDOW ANTENNA GRID GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INFLATABLE RESTRAINT STEERING WHEEL CONTROL MODULE LEFT FRONT MIDRANGE SPEAKER LEFT FRONT TWEETER SPEAKER LEFT RADIO CONTROL SWITCHES LEFT REAR SPEAKER LF AUDIO RF AUDIO LF AUDIO RR AUDIO RR AUDIO LR AUDIO LR AUDIO GROUND GROUND LF SPKR LF SPKR RR SPKR RR SPKR LT BLU WIRE LT BLU/BLK WIRE LT GRN (OR BLK/WHT) WIRE LT GRN WIRE LT GRN/BLK WIRE LT LT MID-RANGE MUTE NCA WIRE ORG/ WIRE ORG/BLK WIRE PPL RADIO RADIO ANTENNA MODULE (ON REAR WINDOW HEADER PANEL) RADIO FUSE RADIO PREM FUSE RADIO, HVAC, RFA, CEL TEL, CLUSTER FUSE REAR WINDOW ANTENNA GRID RED WIRE RIGHT FRONT MIDRANGE SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT RADIO CONTROL SWITCHES RIGHT REAR SPEAKER RR RTN RR FEED LR FEED LR RTN SCAN SEEK DN SEEK UP SOURCE STRG CTRL SUB RTN SUB RTN SUB-WOOFER TAN WIRE USED) (NOT VEHICLE INTERFACE UNIT (VIU) (IN REAR COMPT, MOUNTED TO LEFT REAR WHEELHOUSE) VOL DN VOL UP W/ ADAPTIVE RECEPTION SYSTEM W/O ADAPTIVE RECEPTION SYSTEM WHT WIRE YEL WIRE

AM/FM ANT IN ARS BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE E, C DATA FRONT WINDOW ANTENNA GRID GRY WIRE HOT AT ALL TIMES HOT IN ACC OR RUN I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INFLATABLE RESTRAINT STEERING WHEEL CONTROL MODULE LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER LEFT RADIO CONTROL SWITCHES LEFT REAR SPEAKER LF SPKR LF SPKR RR SPKR RR SPKR LR SPKR LR SPKR RF SPKR RF SPKR GROUND BATTERY RAP PWR RADIO PWR ILLUM FUSE OUT LT BLU WIRE LT GRN (OR BLK/WHT) WIRE LT GRN WIRE MUTE NCA WIRE NOT USED ORG/ WIRE RADIO RADIO ANTENNA MODULE (ON REAR WINDOW HEADER PANEL) RADIO FUSE RADIO, HVAC, RFA, CEL TEL, CLUSTER FUSE REAR WINDOW ANTENNA GRID RED WIRE RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER RIGHT RADIO CONTROL SWITCHES RIGHT REAR SPEAKER SCAN SEEK DN SEEK UP SOURCE STRG CTRL TAN WIRE VOL DN VOL UP W/ ADAPTIVE RECEPTION SYSTEM W/O ADAPTIVE RECEPTION SYSTEM WHT WIRE YEL WIRE

A/T SHIFT LOCK CONTROL SOLENOID AUTOMATIC TRANSMISSION BLK WIRE BRAKE TO SHIFT RELAY (LEFT OF I/P FUSE BLOCK) BTSI PARK LOCK FUSE COMPUTER DATA LINES SYSTEM DATA LINE DK GRN WIRE GRN WIRE GRY WIRE HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) ORG/ WIRE PNK WIRE RED WIRE SIG A SIG B SIG P SIG C STOPLAMP SWITCH (OPEN WHEN BRAKE PEDAL DEPRESSED) (ON BRAKE PEDAL SUPPORT) TAN WIRE TRANSMISSION INTERNAL MODE SWITCH WHT WIRE YEL WIRE

1-2 SHIFT SOLENOID 1174 85 CRUISE CONTROL SYSTEM 2-3 SHIFT SOLENOID 444 472 (PIN 47-48 NOT USED) 5 VOLT REF (PIN 31-32 NOT USED) 33 34 35 36 37 38 39 TPS REF TP SWITCH AIR CONDITIONING SYSTEM AUTO TRANSAXLE FLUID TEMPERATURE AUTOMATIC TRANSMISSION SENSOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CLUSTER FUSE CRANK SIGNAL FUSE DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENG OIL LEVEL IND IN CRUISE STATUS EVAP CAN VENT SOL CONTROL FUEL PUMP RELAY CONTROL EGR VAL CONTROL MIL CONTROL F/PMP RELAY FUEL PUMP FUEL PUMP PRIME CONNECTOR FUEL TANK GEN TERMINAL L OUTPUT GRY WIRE GRY/BLK WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 HOT AT ALL TIMES F/PMP FUSE 35 HOT IN HOT IN RUN, BULB TEST OR START IAC COIL "A" LOW IAC COIL A HIGH (PIN 8-9 NOT USED) PPL 10 11 IAC COIL B LOW IAT SENSOR SIGNAL LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE NCA WIRE PNK WIRE PPL PPL FUEL LEVEL SENSOR PPL/WHT WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE SENSOR GROUND STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TCC PWM SOL VAL CONTROL TCC SOLENOID VALVE TFT SENSOR SIGNAL FUEL LEVEL SENSOR INPUT CKP SENS PPL TR SWITCH INPUT A ENG OIL PRESS SWITCH IN TRANS FUSE 26 OXY SEN FUSE 29 UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE YEL WIRE YEL/BLK WIRE