Buick Century VI (1997-2005) (behind data link connector) Wiring diagrams

1442 1442 251 251 BATTERY BATTERY GROUND GROUND ABS FUSE ABS FUSE 1 ANTI-LOCK FAIL IND BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE IND BRAKE PRESSURE MODULATOR VALVE BRN WIRE BRN/WHT WIRE CLUSTER FUSE DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) DELIVERED TORQUE DESIRED TORQUE DK GRN WIRE ELECTRONIC POWER STEERING SYSTEM GRY WIRE HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INSTRUMENT PANEL CLUSTER LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR LOW TRAC IND LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK PNK WIRE PNK WIRE PPL PUMP MOTOR RED WIRE REGAL RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR SERIAL DATA SIGNAL SPLICE PACK STOP LAMP SW OUT STOP LAMP SWITCH (ON BRAKE PEDAL SUPPORT BRACKET) STOP LAMPS FUSE STRNG VAR ASSIST MOTOR STRNG VAR ASSIST MOTOR TAN WIRE TAN/BLK WIRE TRAC OFF IND TRACTION CONTROL SWITCH UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) VENT TUBE WHT WIRE YEL WIRE

BCM GND BCM PWR FUSE BLK WIRE BODY CONTROL MODULE (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) CLUSTER FUSE CRANK RELAY II CRANK SIGNAL BCM, CLUSTER FUSE CRANK VOLTAGE PPL DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) DK GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN HOT IN OFF, RUN OR START HOT IN RUN OR START HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK IGN IGN 0: CLUSTER PCM, BCM FUSE IGN KEY RESISTOR PELLET IGN KEY SIG IGN REF LO IGNITION SWITCH INSTRUMENT PANEL CLUSTER KEY IN KEY OUT KEY-IN SIG LT GRN WIRE ORG/ WIRE PASS-KEY ENABLE SWITCH PCM BCM IGN RELAY FUSE PNK WIRE PPL PPL IGN (0) PPL/WHT WIRE SECURITY INDICATOR SERIAL DATA STARTER RLY CTRL STARTER SOLENOID TAN WIRE UNDERHOOD FUSE BLOCK (MOUNTED TO RIGHT STRUT TOWER) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK 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

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 BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) DATA CLSS 2 DATA LINK CONNECTOR (DLC) (UNDER LEFT SIDE OF DASH, RIGHT OF STEERING COLUMN) DK BLU WIRE DK GRN WIRE E, C SER DATA GRY WIRE HOT AT ALL TIMES HVAC CONTROL MODULE I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) INSTRUMENT PANEL CLUSTER LT BLU WIRE LT GRN WIRE ORG/ WIRE PPL RADIO RADIO, HVAC, RFA, CLUSTER, DATA LINK FUSE SPLICE VEHICLE COMMUNICATIONS INTERFACE MODULE (ON REAR OF LEFT REAR WHEELHOUSE) WHT WIRE

AIR BAG FUSE AIR BAG WARNING INDICATOR BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND LEFT SIDE OF DASH, LEFT OF STEERING COLUMN) BRN WIRE CASE GROUND CLASS 2 (BCM) SERIAL DATA DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE GROUND GRY WIRE HIGH CONTROL HIGH CONTROL LOW CONTROL HOT IN RUN, BULB TEST, START I/P FUSE BLOCK (BEHIND RIGHT SIDE OF DASH, IN RIGHT DOOR OPENING) IGNITION IGNITION VOLTAGE INFLATABLE RESTRAINT I/P MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL INSTRUMENT CLUSTER IPC CLASS 2 SERIAL DATA LEFT FRONT INFLATABLE RESTRAINT SIDE IMPACT MODULE LEFT FRONT INFLATABLE RESTRAINT SIDE IMPACT SENSOR (AT BASE OF LEFT "B" PILLAR) LOGIC LT GRN WIRE NCA WIRE PPL SEAT BELT SWITCH SEAT BELT SWITCH (PART OF DRIVER'S SEAT BELT ASSEMBLY) SERIAL DATA CLASS 2 SERIAL DATA CLASS 2 HIGH CONTROL LOW CONTROL LOW CONTROL SHORTING BAR SIGNAL VOLTAGE SOLID STATE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE