Buick LeSabre VII (1992-1999) heater and a/c control assembly Wiring diagrams

17 56 VSB A/C SENSOR RETURN 62 35 31 29 A/C REQUEST COMPRESSOR CONTROL FAN RELAY CONTROL FAN RELAY CONTROL A/C REFRIGERANT PRESSURE SENSOR (LOWER RIGHT FRONT OF ENGINE) BLK WIRE BLU WIRE BRN WIRE DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (LEFT REAR OF ENGINE) GRY WIRE HEATER AND A/C CONTROL ASSEMBLY HIGH SPEED COOLANT FAN RELAY (LEFT REAR OF ENGINE COMPARTMENT) HOT IN RUN HOT IN RUN LEFT MAXI FUSE BLOCK FUSE 4 I/P FUSE BLOCK FUSE IGNITION IGNITION GROUND ILLUMINATION ILLUMINATION GROUND LEFT COOLANT FAN MOTOR LOW SPEED COOLANT FAN RELAY (LEFT REAR OF ENGINE COMPARTMENT) LT BLU WIRE NCA WIRE PASSENGER CLIMATE CONTROL ASSEMBLY POWERTRAIN CONTROL MODULE (BEHIND RIGHT SIDE OF I/P) PPL PPL/WHT WIRE PRESSURE INPUT RED WIRE RED/BLK WIRE RIGHT COOLANT FAN MOTOR SENSOR INPUT TAN WIRE TO SOUND SYSTEM VF DIM INPUT YEL WIRE

17 56 PRESSURE SW SENSOR GND A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR CONTROL RELAY (CENTER REAR OF ENGINE COMPARTMENT) A/C CTRL A/C REFRIGERANT PRESSURE SENSOR (LOWER RIGHT FRONT OF ENGINE) A/C REQUEST COMPRESSOR CTRL FAN RELAY CTRL FAN RELAY CTRL A/C REQUEST O/S AIR /RECIRC DEFROST A/C REQ HEAT REQUEST IGNITION A/C SOLENOID SWITCH ASSEMBLY (BEHIND RIGHT SIDE OF I/P) A/C TEMPERATURE VALVE ACTUATOR (BEHIND CENTER OF I/P) BLK WIRE BLOWER FEED BLOWER HI BLOWER MOTOR BLOWER RESISTOR ASSEMBLY (CENTER REAR OF ENGINE COMPARTMENT) BLOWER SPEED RELAY (CENTER REAR OF ENGINE COMPARTMENT) BLU WIRE BRN WIRE COMPRESSOR CLUTCH BREAKOUT) DEF-A/C CTRL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE SENSOR (LEFT REAR OF ENGINE) FUSE 3 GROUND GRY WIRE HEAT CTRL HEATER AND A/C CONTROL ASSEMBLY HIGH SPEED BLOWER RELAY HIGH SPEED COOLANT FAN RELAY (LEFT REAR OF ENGINE COMPARTMENT) HOT AT ALL TIMES HOT IN RUN (RIGHT FRONT OF ENGINE COMPARTMENT) HOT IN RUN FUSE HOT IN RUN FUSE 4 I/P FUSE BLOCK I/P FUSE BLOCK FUSE IGNITION ILLUMINATION LEFT COOLANT FAN MOTOR LEFT MAXI FUSE BLOCK LOW SPEED COOLANT FAN RELAY (LEFT REAR OF ENGINE COMPARTMENT) LT BLU WIRE LT GRN WIRE MODE SELECT NCA WIRE O/S AIR RECIRC CTRL ORG/ WIRE PNK PNK WIRE PNK PPL WIRE PNK WIRE POWERTRAIN CONTROL MODULE (BEHIND RIGHT SIDE OF I/P) PPL PRESSURE SW RED WIRE RED/BLK WIRE RELAY CTRL RIGHT COOLANT FAN MOTOR RIGHT UNDERHOOD FUSE BLOCK SENSOR INPUT SOLID STATE TAN WIRE TEMP CTRL GND TEMP VALVE CTRL VF DIM INPUT YEL WIRE

ASHTRAY LAMP BLK WIRE BLK/WHT WIRE COURTESY LAMPS CIRCUIT DK GRN WIRE GRY WIRE HEADLAMP SWITCH HEATER AND A/C CONTROL ASSEMBLY HOT AT ALL TIMES HVAC PROGRAMMER I/P FUSE BLOCK I/P FUSE BLOCK MISC/RDO/ CLSTR ILLUM INSTRUMENT CLUSTER INTERIOR LPS JUNCTION LAMP CONTROL MODULE LAMP DIMMER SWITCH LEFT FRONT DOOR LOCK SWITCH N/A NCA WIRE ORG/ WIRE PARK LAMPS ON PASSENGER CLIMATE CONTROL ASSEMBLY PPL PPL/WHT WIRE RADIO RADIO/HVAC STEERING WHEEL CONTROLS REMOTE DIMMER MODULE RIGHT FRONT DOOR LOCK SWITCH SIR COIL ASSEMBLY TRUNK COMPARTMENT LID RELEASE SWITCH ASSEMBLY VF DIM IN VF DIM INPUT VF DIM OUT YEL WIRE

ASHTRAY LAMP BRN WIRE CONNECTOR BREAKOUT) ENGINE COMPARTMENT LAMP FROM PARK LPS FUSE (DIAGRAM 2 OF 6) HEAD LAMP SWITCH RADIO HEAD- LAMP SWITCH HEADS-UP DISPLAY CONTROL MODULE HEATER AND A/C CONTROL ASSEMBLY I/P FUSE BLOCK INSTRUMENT CLUSTER INTERIOR LAMP CONTROL INTERIOR LPS LAMP CONTROL MODULE LAMP DIMMER SWITCH LEFT FRONT DOOR COURTESY LAMP NCA WIRE OLDSMOBILE ORG/ WIRE PANEL DIMMER MODULE PARK LAMP RELAY PARK LAMPS PERIMETER LT PONTIAC PPL RADIO REMOTE DIMMER MODULE RIGHT FRONT DOOR COURTESY LAMP RIGHT I/P POWER DISTRIBUTION CENTER TAN WIRE YEL WIRE

A/C SOLENOID SWITCH ASSEMBLY A/C TEMPERATURE VALVE ACTUATOR A/C TEMPERATURE VALVE ACTUATOR (PONTIAC) A/C TEMPERATURE VALVE ACTUATOR HEATER AND A/C CONTROL ASSEMBLY ABS/CCR ADAPTIVE LAMP MONITOR CONTROL MODULE AUTO A/C-CRUISE BASE A/C BRN WIRE CLG FAN/ TRANS COMPUTER COMMAND RIDE (CCR) CONTROLLER CRUISE CONTROL MODULE CRUISE CONTROL SWITCH DRIVER SELECT SHIFT SWITCH DRIVER SELECT SHIFT SWITCH INSTRUMENT CLUSTER ELC HEIGHT SENSOR ELC RELAY ELECTRONIC BRAKE AND TRACTION CONTROL MODULE ELECTRONIC BRAKE AND TRACTION CONTROL MODULE BLOWER SPEED RELAY FROM IGNITION SWITCH (DIAGRAM 4 OF 6) HEAD UP DISPLAY CONTROL MODULE HEAD UP DISPLAY CONTROL SWITCH HEATER AND A/C CONTROL ASSEMBLY HIGH SPEED COOLANT FAN RELAY HVAC PROGRAMMER I/P FUSE BLOCK LOW SPEED COOLANT FAN RELAY NCA WIRE OLDSMOBILE ORG/ WIRE PONTIAC PONTIAC ONLY PONTIAC SSE RIGHT I/P POWER DISTRIBUTION CENTER TCC/ ANTILOCK BRAKE SWITCH W/ CENTER CONSOLE W/ COMPUTER COMMAND RIDE W/O COMPUTER COMMAND RIDE W/O CENTER CONSOLE