Buick Roadmaster VIII (1991-1996) dk grn/wht Wiring diagrams

4000 PULSES/MILE BATTERY BLK/WHT WIRE BRN WIRE BUICK ONLY CHEVY BUICK CRUISE CONTROL IND CRUISE CONTROL MODULE (FASTENED TO LEFT CRUISE CONTROL RELEASE SW (ON BRAKE PEDAL SUPPORT) CRUISE FUSE CRUISE STATUS VSS INPUT CRUISE SW DISTANCE TRAVELED INPUT DK BLU WIRE DK GRN WIRE DK GRN/WHT 817 WIRE DK GRN/WHT WIRE F/P FUSE TRANS FUSE FRONT WHEEL HOUSE) GROUND GRY WIRE HAZARD LAMP FLASHER HOT AT ALL TIMES HOT IN RUN, BULB TEST OR I/P INDIC FUSE IGNITION SIG INST PANEL FUSE BLOCK INSTRUMENT CLUSTER MULTIFUNCTION LEVER NCA WIRE OF LEFT CYLINDER HEAD) OFF OFF ON ORG/ WIRE PNK PNK PPL WIRE PNK PNK WIRE PNK WIRE POWERTRAIN CONTROL MODULE (PCM) PPL SET R/A SW STOP/HZD FUSE STOPLAMP SW (ON BRAKE PEDAL SUPPORT) VEHICLE SPEED INPUT VEHICLE SPEED SENSOR VSS INPUT/LO VSS INPUT/HI WARNING ALARM MODULE WHT WIRE YEL WIRE

1.3 K V REF LO 29.6 29.6 790 K V REF HI 29.6 K 7 TO 15 OHMS BLK WIRE BRN WIRE DATA LINK CONNECTOR DK GRN WIRE DK GRN/WHT WIRE ENABLE GROUND HOT IN RUN I/P FUSE BLOCK IGNITION INPUT LT BRN WIRE LT GRN WIRE POWER STEERING CONTROL MODULE POWER STEERING RESERVOIR P/S PUMP EVO ACTUATOR POWERTRAIN CONTROL MODULE PULSE WIDTH MODULATED OUTPUT CONTROL RED WIRE SOLID STATE STEERING WHEEL ROTATION SENSE STEERING WHEEL SPEED SENSOR V REF LO VEHICLE SPEED OUTPUT 4000 PULSE/MILE VEHICLE SPEED SENSOR VES FUSE 10 AMP VSS INPUT 4000 PULSES PER MILE WHT WIRE

A/C DRL FUSE BLK WIRE BRAKE/ BRN WIRE CHEVY BUICK CHIME FUSE DAYTIME RUNNING LTS (DRL) DROPPING DIODE (ATTACHED TO BRAKE DAYTIME RUNNING LTS (DRL) MODULE (AT RIGHT "A" PILLAR, RIGHT KICK PANEL) DK BLU WIRE DK GRN/WHT WIRE DRL RELAY FUS LINK A GROUND HEAD ON IGNITION HI BEAM IN GROUND LT SENS IN LT SENS IN HEAD RELAY HEADLT AUTO CTRL AMBIENT LT SENS (TOP OF I/P, MOUNTED ON DEFROST GRILL) HEADLT DIMMER HEADLT SW HI BEAM IND INSTRUMENT CLUSTER HI-BEAM IND HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK I/P FUSE BLOCK EXT LPS FUSE INSTRUMENT CLUSTER INSTRUMENT CLUSTER BRAKE INDICATOR INTERIOR, EXTERIOR LTS LEFT DUAL BEAM HEADLT LT GRN LT GRN WIRE LT GRN WIRE LT GRN/BLK WIRE NOT USED OFF ORG/ WIRE OUTPUT #1 IGNITION OUTPUT #2 OUTPUT #3 PARK PARK BRAKE SW (ON PARK BRAKE ASSEMBLY) PARK RELAY PEDAL BRACKET) PNK PPL WIRE PNK WIRE RED WIRE RIGHT DUAL BEAM HEADLT SUPPORT, FORWARD OF BATTERY) TAN WIRE TAN/WHT WIRE UNDERHOOD ELECTRICAL CENTER YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

AMBIENT LT SENSOR INPUT BLK WIRE BLK/WHT 1491 WIRE BLK/WHT WIRE BRN WIRE CONN 1 CONN 2 DK GRN/WHT WIRE EXT LPS FUSE EXTERIOR LTS FUS LINK A (UNDERHOOD ELECTRICAL CENTER) GROUND HEAD HEADLT AUTO CONTROL MODULE (ABOVE BASE OF STEERING COLUMN) HEADLT AUTO CTRL AMBIENT LT SENSOR HEADLT DIMMER HEADLT SW HI BEAM GROUND B+ HI-BEAM IND HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK CHIME FUSE INSTRUMENT CLUSTER INTERIOR, EXTERIOR LTS INTERNAL HEAD RELAY INTERNAL PARK RELAY LEFT DUAL BEAM HEADLT LT GRN LT GRN WIRE LT GRN WIRE LT GRN/BLK WIRE LTS ON INPUT LTS ON WARNING INPUT IGNITION DELAY ON/OFF OUTPUT #2 OUTPUT #1 MAX MIN PPL NOT USED OFF ORG/ WIRE PARK PNK PPL WIRE PNK WIRE RED WIRE RIGHT DUAL BEAM HEADLT TAN WIRE TWILIGHT SENTINEL SW WARNING ALARM (CONVENIENCE CENTER) YEL WIRE YEL/BLK WIRE

8.45 AIR BAG FUSE AIR BAG IND BLK WIRE BLK/WHT WIRE BRN WIRE CHEVROLET BUICK COMPUTER DATA LINES COMVENIENCE CENTER (BEHIND LEFT I/P, LEFT OF STEERING COLUMN) CRANK FUSE CRANK INPUT DK GRN WIRE DK GRN/WHT WIRE DRIVER INFLATOR MODULE (CENTER OF STEERING WHEEL) DRIVER SEAT BELT IN DRIVER SIDE "HIGH" DRIVER SIDE "LOW" FRONT END SHEET METAL SENSOR (BELOW HOOD LATCH MECHANISM) GROUND GRY WIRE HOT IN HOT IN RUN, BULB TEST OR START I/P FUSE BLOCK I/P INDIC FUSE IGN 1 INSTRUMENT CLUSTER NCA WIRE PASSENGER INFLATOR MODULE (RIGHT SIDE OF I/P, ABOVE I/P COMPT) PASSENGER SIDE "HIGH" PASSENGER SIDE "LOW" PNK WIRE PPL REDUNDANT IND GROUND REDUNDANT IND IGN 1 REFERENCE VOLTAGE SEAT BELT SW- SENSOR SIGNAL SERIAL DATA LINE SHORTING BAR SIR COIL ASSEMBLY (TOP OF STEERING COLUMN) SIR IND TAN WIRE WARNING ALARM SEAT BELT INPUT WHT WIRE WHT/BLK WIRE YEL WIRE

AUTO HEADLAMP CONTROL MODULE (RIGHT KICK PANEL) BLK WIRE BLK/WHT WIRE BLT SW CHEVY BUICK CHIME FUSE CLUS CHI FUSE DK BLU WIRE DK BLU/WHT WIRE DK GRN/WHT WIRE DR SW PNK IGN WIRE FUSE BLOCK- I/P GRY WIRE HEADLAMP SWITCH HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START IGN KEY IGNITION KEY ALARM SWITCH ILL ENT IND CTRL INTERIOR LIGHTS SYSTEM CHEVY LEFT FRONT DOOR JAMB SWITCH LEFT REAR DOOR JAMB SWITCH LPS ON SIG LT GRN WIRE NCA WIRE NON-SEO ONLY ORG/ WIRE PANEL LAMPS DIMMING MODULE PNK WIRE POWERTRAIN CONTROL MODULE PPL REMOTE KEYLESS ENTRY SYSTEM RIGHT FRONT DOOR JAMB SWITCH RIGHT REAR DOOR JAMB SWITCH SAFETY BELT SWITCH SUPPLEMENTAL RESTRAINT SYSTEM T/SIG FUSE TAN WIRE TURN SIGNAL FLASHER (IN CONVENIENCE CENTER) TURN/ HAZARD SWITCH VEH SPD PPL TRN SIG ON W/O TWILIGHT SENTINEL W/TWILIGHT SENTINEL WARNING ALARM (IN CONVENIENCE CENTER, WHT WIRE YEL WIRE

5 VOLTS REF 5 VOLTS REF PNK IGNITION WIRE A/C CLUTCH STATUS A/C COMPRESSOR RELAY A/C REQUEST SIG AIR CONDITIONING SYSTEM AIR PUMP RELAY CTRL BATTERY BATTERY PPL SENSOR GROUND BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE COIL CONN B COOLANT FAN RELAYS CRUISE CONTROL, SPEEDO, RADIO, WARNING ALARM, CENT CTRL MODULE DIST IGNITION FEED DIST REF LOW SIG DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE EGR SOLENOID CTRL ELECTRICAL ENG OIL LEVEL SENSOR SIG ENG OIL RESET SW ENGINE OIL CHANGE RESET SWITCH (NEXT TO I/P FUSE) ENGINE OIL LEVEL SENSOR (LEFT SIDE OF ENGINE OIL PAN) F/P FUSE #2 FUEL ENABLE SIG FUEL INJ FUSE #6 FUEL INJ FUSE #9 FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL INJECTOR 5 FUEL INJECTOR 6 FUEL INJECTOR 7 FUEL INJECTOR 8 FUEL PUMP RELAY CTRL GROUND GRY WIRE HIGH RES DISTRIBUTOR HIGH RESOLUTION SIG HOT AT ALL TIMES HOT IN RUN OR START HOT IN RUN, BULB TEST OR START IGN IGNITION CTRL INJ 1 CTRL INJ 2 CTRL INJ 3 CTRL INJ 4 CTRL INJ 5 CTRL INJ 6 CTRL INJ 7 CTRL INJ 8 CTRL INSTRUMENT CLUSTERS INTERFACE CIRCUIT LOW OIL IND CTRL LOW RES LOW RESOLUTION SIG LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MAF SENSOR SIG MASS AIR FLOW SENSOR (BETWEEN AIR CLEANER AND INTAKE RESONATOR) OPTICAL SENSOR ORG/ WIRE ORG/BLK WIRE PCM GROUND PIPE) PNK WIRE PNK/BLK WIRE POWER STEERING PRESSURE SWITCH (IN POWER STEERING LINE NEAR POWER UNIT) POWERTRAIN CONTROL MODULE (FORWARD OF LEFT WHEELHOUSE, UNDER AIR CLEANER) PPL PPL VSS GROUND PRI COOL FAN RELAY CTRL PSP SWITCH IN RED WIRE RED/BLK WIRE REF LOW SEC COOL FAN RELAY CTRL SENSOR GROUND SPARK PLUGS SYSTEM TAN/WHT WIRE TCC TEMP SWITCH TCC TEMP SWITCH SIG THEFT DETERENT MODULE TRANS 1-2 SHIFT CTRL TRANS 2-3 SHIFT CTRL TRANS 3-2 SHIFT CTRL TRANS FUSE #5 UNDER- HOOD VEHICLE SPEED SENSOR VSS OUT VSS SIGNAL CONN A WHT WIRE YEL WIRE YEL/BLK WIRE

AIR FUSE #3 ASSEMBLY BLK WIRE BLK/WHT WIRE BRN WIRE CHIME FUSE #13 CRUISE CONTROL RELEASE SWITCH (ATTACHED TO BRAKE PEDAL BRACKET) DK BLU WIRE DK GRN/WHT WIRE ECT SENSOR SIG EGR SOLENOID VALVE (TOP OF ENGINE BEHIND INJ #7) EMI FUSE #4 ENGINE COOLANT TEMPERATURE SENSOR (RIGHT FRONT OF ENGINE) EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE (TOP OF ENGINE BEHIND INJ #4) GRY WIRE HEATED OXYGEN SENSOR 1 (BANK 1, LEFT EXHAUST MANIFOLD) HEATED OXYGEN SENSOR 2 (BANK 2, RIGHT EXHAUST MANIFOLD) HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START IAC COIL "A" LOW IAC COIL "B" LOW IAC COIL A HI IAC COIL B HI IAT SENSOR SIG IDLE AIR CONTROL MOTOR (RIGHT FRONT OF THROTTLE BODY) INTAKE AIR TEMPERATURE SENSOR (AIR CLEANER LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MANIFOLD ABSOLUTE PRESSURE SENSOR MAP SENSOR SIG NCA WIRE NEXT TO THERMOSTAT HOUSING) ORG/ WIRE ORG/BLK WIRE PCM GROUND CONN C PNK PPL WIRE PNK TRANS RANGE SIG A WIRE PNK WIRE PNP SIG POWERTRAIN CONTROL MODULE (FORWARD OF LEFT WHEELHOUSE, UNDER AIR CLEANER) PPL PPL BRAKE SWITCH SIG PPL/WHT WIRE RED WIRE RED/BLK WIRE SECONDARY AIR INJECTION (AIR) PUMP (LOWER RIGHT SIDE OF ENGINE BLOCK) SECONDARY AIR INJECTOR (AIR) PUMP RELAY TAN WIRE TAN/WHT WIRE THROTTLE POSITION SENSOR (ATTACHED TO RIGHT SIDE THROTTLE BODY) TP SENSOR SIG TRANS PRESS CTRL SOL HI TRANS RANGE SIG B TRANS RANGE SIG C UNDER- HOOD ELECTRICAL CENTER WHT WIRE YEL WIRE YEL/BLK WIRE

1-2 SHIFT SOLENOID 2-3 SHIFT SOLENOID 3-2 CTRL SOLENOID (PWM) A/C CLUTCH CTRL A/C COMPRESSOR RELAY A/C PRESS SENSOR SIG A/C REFRIGERANT PRESSURE SENSOR (IN HI PRESSURE LINE ABOVE RIGHT WHEELHOUSE) AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE BLOCK, BELOW BLOCK, FORWARD BRN WIRE BRN/WHT WIRE CANISTER PURGE CTRL COMPARTMENT) CONN D DATA LINK CONNECTOR DK BLU WIRE DK GRN/WHT WIRE EXHAUST MANIFOLD) FUEL PUMP PRIMING CONNECTOR (NEAR A/C ACCUMULATOR) FUEL PUMP/ LEVEL SENDER (IN FUEL FUEL PUMP/ OIL PRESSURE SWITCH (TOP OF ENGINE AT REAR) GROUND GRY WIRE HOT AT ALL TIMES HOT IN RUN, BULB TEST OR START I/P FUSE #2 I/P INDC FUSE #11 IGNITION COIL (FRONT OF ENGINE) IGNITION COIL MODULE (FRONT OF ENGINE) COIL DRIVER IGN IGN CTRL INSTRUMENT CLUSTER INSTRUMENT CLUSTER SYSTEM KNOCK SENSOR SIG LEFT KNOCK SENSOR LT BLU/WHT WIRE LT GRN WIRE MALFUNCTION INDICATOR MIL CTRL OF STARTER) ORG/ WIRE ORG/BLK WIRE OUTPUT/FIELD SERV ENBL PARK/NEUTRAL POSITION SWITCH (NEAR BASE OF STEERING COLUMN) PCM GROUND PNK CHANGE OIL IND CTRL WIRE PNK WIRE PNK/BLK WIRE POWERTRAIN CONTROL MODULE (FORWARD OF LEFT WHEELHOUSE, UNDER AIR CLEANER) PPL PRESSURE CONTROL SOLENOID RED WIRE RED/BLK WIRE RIGHT KNOCK SENSOR SERIAL DATA SW A SW B SW C TAN WIRE TAN/BLK WIRE TANK) TCC SOLENOID TRANS FLUID TEMP SENSOR TRANS FLUID TEMP SIG TRANS FUSE #5 TRANS PRESS CTRL LOW PNK IGNITION WIRE TRANS TCC CTRL UNDER- HOOD ELECTRICAL CENTER WHT WIRE WHT/BLK WIRE YEL/BLK WIRE