Buick Century VI (1997-2005) (behind right side of dash) Wiring diagrams

39 22 27 34 CLUTCH RLY CTRL CLUTCH REQUEST A/C PRESS SIGNAL 5 VOLT REF 58 80 CLASS 2 SER DATA LOW REF A/C CLU DIODE A/C CLUTCH FUSE 23 A/C CLUTCH RELAY 15 A/C COMPRESSOR CLUTCH A/C REFRIGERENT PRESSURE SENSOR (LEFT FRONT STRUT TOWER, ON A/C LIQUID LINE) AUTO A/C MANUAL A/C BLK WIRE BREAKOUT) BRN WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROLS SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN HVAC CONTROL MODULE I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) HVAC FUSE IGN MAIN RELAY (CLOSED IN RUN OR START) IGNITION BATTERY A/C REQUEST SERIAL DATA GROUND ORG/ WIRE RDO, HVAC, RFA CLSTR, CEL TEL FUSE RED/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPT) W/ AUTO A/C W/ MANUAL A/C WHT WIRE

BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) COMPUTER DATA LINES SYSTEM COURT LMPS FEED COURT LMPS ON DOOR OPEN INPUT DRIVER DR OPEN DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR LOCK FRONT PASSENGER DOOR LOCK HEADLAMP SWITCH DOME HOT AT ALL TIMES I/P COMPART- MENT LAMP/ SWITCH I/P FUSE BLOCK INADV POWER BUS FUSE LEFT COURTESY LAMP LEFT REAR DOOR LOCK LT GRN WIRE OFF LO HI ORG/ WIRE REGAL, CENTURY CUSTOM RIGHT COURTESY LAMP RIGHT REAR DOOR LOCK SERIAL DATA THEATER DIM 1 THEATER DIM (GRD) WHT WIRE

1995 VFTC A/T SHIFT LOCK CONTROL SWITCH (CENTER OF CONSOLE) BLK WIRE HOT IN OFF, RUN OR START I/P FUSE BLOCK (RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) IGNITION LOCK CYLINDER CONTROL ACTUATOR IGNITION LOCK CYLINDER CONTROL SWITCH (CLOSED IN PARK) LT BLU WIRE PARK LOCK FUSE PPL WHT/BLK WIRE

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

2002 REGAL /CENTURY, 2003 REGAL ONLY ASHTRAY LAMP (CENTURY) BLK WIRE BLU WIRE BRN WIRE DOME DRIVER DOOR LOCK SWITCH DRIVER MASTER WINDOW SWITCH DRIVER SEAT HEATER SWITCH ELECTRONIC TRACTION CONTROL SWITCH (REGAL) FOG LAMP SWITCH FRONT PASSENGER WINDOW SWITCH FRONT PASSENGER DOOR LOCK SWITCH GRD GRY WIRE HEAD OFF PARK HEADLAMP SWITCH HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK I/P FUSE BLOCK STRG WHL CONT FUSE ILLUM INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT CLUSTER VF DIM DIS SIG LP PARK FUSE LT BLU WIRE OFF ORG/ WIRE OUTSIDE REAR VIEW MIRROR SWITCH PANEL DIMMING FUSE PASSENGER SEAT HEATER SWITCH PRNDL LAMP (REGAL) RADIO CONTROL SWITCHES RADIO VF DIM DIS SIG RED WIRE TAIL, LIC LAMPS FUSE UNDERHOOD FUSE BLOCK VF DIM SIG W/ HEATED SEATS W/O HEATED SEATS WHT WIRE YEL WIRE

3.8L 3.1L A/C CLU DIODE A/C CLUTCH RELAY 15 A/C COMPRESSOR CLUTCH A/C REFRIGERENT PRESSURE SENSOR (AT LEFT FRONT STRUT TOWER, ON A/C LIQUID LINE) BLK WIRE BREAKOUT) BRN WIRE COOL FAN 1 FUSE COOL FAN 2 FUSE A/C CLUTCH FUSE 23 COOL FAN 1 RELAY COOL FAN 2 RELAY COOL FAN 3 RELAY DEFOGGER SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE DRVR TEMP CTRL ENGINE CONTROLS SYSTEM FAN OFF INPUT A/C REQUEST SIG IGNITION DEFOGGER ON PASS TEMP CTRL GRY WIRE HIGH BLOWER FUSE HIGH BLOWER RELAY HOT AT ALL TIMES HOT IN RUN HVAC CONTROL MODULE HVAC FUSE I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH) IGN IGN MAIN RELAY (CLOSED IN RUN OR START) INTERIOR LIGHTS GROUND BATTERY LAMP DIM SIG LEFT COOLING FAN BLOWER MOTOR (BEHIND RIGHT SIDE OF DASH, IN HVAC MODULE) LEFT COOLING FAN DIODE (3.1L) LOW BLOWER FUSE LT BLU WIRE NCA WIRE OFF LO ORG/ WIRE ORG/BLK WIRE POS PPL RDO, HVAC, RFA CLSTR, CEL TEL FUSE RED/BLK WIRE RIGHT AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC MODULE) RIGHT COOLING FAN DIODE (3.1L) TAN WIRE UNDERHOOD FUSE BLOCK (RIGHT SIDE OF ENGINE COMPT, MOUNTED TO STRUT TOWER) WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE DELAY DK GRN WIRE GRY WIRE HI LO HI MIST HI MIST LO OFF OFF 6 8 0 DELAY 2 7 0 1 5 0 8 2 3 9 HOT IN ACCY OR RUN I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INSTRUMENT PANEL CLUSTER LO OFF MIST NCA WIRE PPL RED WIRE WASHER SWITCH WHT WIRE WIND- SHIELD WASHER FLUID LEVEL SWITCH (IN WASHER FLUID RESERVOIR) WINDSHIELD WASHER FLUID PUMP (IN WASHER FLUID RESERVOIR) WINDSHIELD WIPER MOTOR (ON LEFT SIDE OF FIREWALL, BELOW AIR INLET SCREEN) WINDSHIELD WIPER SWITCH WIPER FUSE WIPER MOTOR WIPER MOTOR CONTROLLER WIPER SWITCH YEL WIRE