Cadillac Catera I (1996-2001) heater and a/c control Wiring diagrams

6 58 13 A/C REQ A/C REQ OUT RELAY CTRL A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR DIODE A/C COMPRESSOR REFRIGERANT PRESSURE SWITCH (LEFT FRONT OF ENGINE COMPT) A/C COMPRESSOR RELAY A/C CUTOUT A/C REQUEST BLOWER OUT OUTSIDE TEMP BLOWER DIAG A/C LOAD SWITCH (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLOWER CONTROLLER (RIGHT SIDE OF DASH) BLOWER MOTOR BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BODY CONTROL MODULE (ON RIGHT "A" PILLAR) BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PPL WIRE BRN/WHT WIRE CLAMP 15 FUSE 14 O/S MIRROR FUSE 13 DEFROSTER VALVE ACTUATOR (RIGHT SIDE OF DASH) ECM HOUSING (LEFT FRONT OF ENGINE COMPT) ELECTRONIC BRAKE/ TRACTION CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROL MODULE FUSE 10 FUSE BLOCK GRN WIRE GRN/BRN WIRE GRN/RED WIRE GRY WIRE HEADLAMP AUTOMATIC CONTROL AMBIENT LIGHT SENSOR (TOP OF DASH) HEADLIGHTS SYSTEM HEATER AND A/C CONTROL HEATER BLOWER FUSE 33 HOT AT ALL TIMES HOT IN RUN HOT IN RUN, BULB TEST OR START HZD FUSE 12 INSIDE AIR VALVE ACTUATOR (RIGHT SIDE OF DASH) LEFT TEMPERATURE VALVE ACTUATOR (RIGHT SIDE OF DASH) MODE VALVE ACTUATOR (RIGHT SIDE OF DASH) RECIRC VACUUM SOLENOID VALVE (BEHIND RIGHT SIDE OF DASH) RED WIRE RIGHT AIR DUCT TEMPERATURE SENSOR (BEHIND RIGHT SIDE OF DASH) RIGHT TEMPERATURE VALVE ACTUATOR (RIGHT SIDE OF DASH) SERIAL DATA SPEED SIG IGN VOLT TACH INPUT GROUND B+ TEST CONNECTOR (IN ECM HOUSING) TWILIGHT SENS SUN SENS DAY/NIGHT SIG GROUND WATER CUT-OFF VACUUM SOLENOID VALVE (BEHIND RIGHT SIDE OF DASH) WHT WIRE YEL WIRE YEL/BLU WIRE

A/C COMPRESSOR CLUTCH COIL A/C COMPRESSOR CLUTCH DIODE A/C COMPRESSOR REFRIGERANT PRESSURE SWITCH (LEFT FRONT OF ENGINE COMPT) A/C COMPRESSOR RELAY A/C CUTOUT A/C LOAD SWITCH (LEFT FRONT OF ENG COMPT) A/C REQUEST A/C REQUEST OUTPUT A/C REQUEST SIGNAL BLK WIRE BLK/ WHT WIRE BLK/BLU WIRE BLK/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/PPL WIRE COOLING FANS SYSTEM ECM HOUSING (LEFT FRONT OF ENGINE COMPT) ENGINE CONTROL MODULE RELAY CONTROL FUSE BLOCK GRN WIRE HEATER AND A/C CONTROL HEATER BLOWER FUSE 33 HOT AT ALL TIMES HOT IN ON OR START O/S MIRROR FUSE 13 RED WIRE TEMPERATURE SWITCH 2 (IN LOWER LEFT SIDE OF RADIATOR) TRANSMISSION CONTROLS SYSTEM YEL/BLU WIRE

AM/FM STEREO RADIO, TAPE PLAYER, COMPACT DISC PLAYER AUTOMATIC LEVEL CONTROL SENSOR (REAR DIFFERENTIAL) BASE BLK WIRE BODY CONTROL MODULE (BCM) (RIGHT "A" PILLAR, BEHIND TRIM) BRN/WHT WIRE CELLULAR TELEPHONE DRIVER SEAT ADJUSTER MEMORY MODULE (ATTACHED TO UNDERSIDE TO DRIVER'S SEAT) E&C SERIAL ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPT, IN ECM HOUSING) FUSE BLOCK HEATER AND A/C CONTROL HOT AT ALL TIMES HZD FUSE 12 INSTRUMENT CLUSTER POWER STEERING CONTROL MODULE (UNDER LEFT SIDE OF DASH) RED WIRE SERIAL DATA SOUND PROCESSOR INTERFACE SUN ROOF ACTUATOR (FRONT CENTER OF ROOF, ABOVE INSIDE REARVIEW MIRROR) TRANSMISSION CONTROL MODULE (TCM) (BEHIND RIGHT SIDE OF DASH)

4 7 2 TS DAY/NIGHT BLK WIRE BLU WIRE BODY CONTROL MODULE (MOUNTED ON RIGHT "A" PILLAR, BEHIND TRIM PANEL) BRN WIRE BRN/BLU WIRE BRN/PPL WIRE BRN/WHT WIRE CLAMP 15 CRUISE FUSE 15 DOME AND READING LAMPS DOME LAMP FUSE 29 FUSE BLOCK (LOWER LEFT SIDE OF STEERING COLUMN) GRY WIRE HEADLAMP AUTOMATIC CONTROL AMBIENT LIGHT SENSOR (MOUNTED ON TOP OF DASH) HEADLAMP SWITCH HEATER AND A/C CONTROL HOT AT ALL TIMES I/P COMPARTMENT LAMP I/P COMPARTMENT LAMP SWITCH INSIDE REAR VIEW MIRROR INSTRUMENT CLUSTER SYSTEM INTERIOR LIGHTS SWITCH LEFT FRONT SIDE DOOR COURTESY LAMP LEFT FRONT SIDE DOOR JAMB SWITCH LEFT FRONT SIDE DOOR LOCK SWITCH LEFT REAR SIDE DOOR COURTESY LAMP LEFT REAR SIDE DOOR JAMB SWITCH LEFT ROOF RAIL COURTESY LAMP LEFT SUNSHADE ILLUMINATED MIRROR LAMP MULTI-FUNCTION RELAY (UNDER LEFT SIDE OF DASH) NCA WIRE PPL REAR COMP CTSY LP INT LPS ON/OFF DELAYED INT LP RLY INTERIOR LAMP RLY REAR COMPARTMENT COURTESY LAMP REAR COMPARTMENT COURTESY LAMP SWITCH RED WIRE RED/BLU WIRE RIGHT FRONT SIDE DOOR COURTESY LAMP RIGHT FRONT SIDE DOOR JAMB SWITCH RIGHT FRONT SIDE DOOR LOCK SWITCH RIGHT REAR SIDE DOOR COURTESY LAMP RIGHT REAR SIDE DOOR JAMB SWITCH RIGHT ROOF RAIL COURTESY LAMP RIGHT SUNSHADE ILLUMINATED MIRROR LAMP TS DAY/NIGHT TS DAY/NIGHT ALL DOOR JAMB

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/PPL WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (ON RIGHT "A" PILLAR) BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/PPL WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CLAMP 15 CRUISE FUSE 15 DAYTIME RUNNING LAMP RELAY FLASH TO PASS SWITCH FOG LAMP INDICATOR FOG LAMP RELAY FOG LAMP SWITCH FUSE FUSE BLOCK (LOWER LEFT SIDE OF STEERING COLUMN) GRY/BLK WIRE HEAD HEADLAMP REQUIRED HEADLAMP SWITCH HEATER AND A/C CONTROL HI BEAM LH FUSE 21 HI BEAM RH FUSE 32 HIGH BEAM HIGH BEAM INDICATOR HIGH BEAM SWITCH HOT AT ALL TIMES HOT IN ON OR START HOT WITH PARK LAMP RELAY ON INSTRUMENT CLUSTER LEFT FOG LAMP LEFT HEADLAMP LEFT HEADLAMP RELAY (HIGH BEAM) LO BEAM LH FUSE 22 LO BEAM RH FUSE 31 LOW BEAM LOW BEAM INDICATOR LOW BEAM RELAY MAX TWILIGHT SENTINEL DELAY SWITCH MIN MULTI-FUNCTION RELAY (UNDER LEFT SIDE OF DASH) PARK LAMP RELAY PARK OFF HEADLAMP SWITCH POWER DISTRIBUTION FUSE BLOCK (LEFT FRONT OF ENGINE COMPT) PRK LP LH FUSE 23 RADIO BATT GUARD FUSE 8 RED WIRE RED/WHT WIRE RED/YEL WIRE RELAY BOX (RIGHT SIDE OF STEERING COLUMN) RIGHT FOG LAMP RIGHT HEADLAMP RIGHT HEADLAMP RELAY (HIGH BEAM) SOLID STATE TS DAY/NIGHT TS ON/OFF HI-BEAM ON/OFF EXT LAMP PWR TURN SIGNAL SWITCH TWILIGHT SENTINEL INDICATOR TWILIGHT SENTINEL SWITCH WHT WIRE YEL WIRE

3 BULBS AUTOMATIC TRANSMISSION CONTROL INDICATOR BLK WIRE BODY CONTROL MODULE (MOUNTED ON RIGHT "A" PILLAR, BEHIND TRIM PANEL) BRN/WHT WIRE CONSOLE CIGARETTE LIGHTER DRIVER SEAT HEATER SWITCH ELECTRONIC TRACTION CONTROL SWITCH EXT LAMP PWR FRONT CIGARETTE LIGHTER FUEL TANK FILLER DOOR LOCK RELEASE SWITCH FUSE BLOCK CLAMP 58 FUSE 26 GAUGE CLUSTER GRY WIRE GRY/GRN WIRE GRY/YEL WIRE HAZARD WARNING SWITCH HEAD HEADLAMP SWITCH HEADLIGHTS SYSTEM HEATER AND A/C CONTROL HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT REAR SEAT HEATER SWITCH PARK LAMP RELAY (ON RIGHT OF STEERING COLUMN, ON RELAY BOX) PARK OFF PASSENGER SEAT HEATER SWITCH PK LAMP RLY POWER DISTRIBUTION FUSE BLOCK (ON LEFT FRONT OF ENGINE COMPARTMENT) RADIO REAR COMPARTMENT LID RELEASE SWITCH RED WIRE RED/WHT WIRE RIGHT REAR SEAT HEATER SWITCH SOLID STATE DIMMER YEL WIRE

A/C COMPRESSOR RELAY A/C LOAD SWITCH ABS FUSE 19 AUTOMATIC TRANSMISSION CONTROL INDICATOR AUTOMATIC TRANSMISSION RANGE SWITCH AUXILIARY WATER PUMP AUXILIARY WATER PUMP RELAY BLK WIRE BLK/PPL WIRE BODY CONTROL MODULE BODY CONTROL MODULE SUN ROOF ACTUATOR AUTOMATIC LEVEL CONTROL SENSOR BRN WIRE CELLULAR TELEPHONE CLAMP CLAMP 15 CRUISE FUSE 15 CLAMP 15 FUSE 14 CLAMP 15 PBSL FUSE 2 CLAMP W PBSL FUSE 24 CONDENSER COOLANT FAN TEST CONNECTOR DRIVER SEAT ADJUSTER MEMORY MODULE LEFT FRONT SIDE DOOR WINDOW SWITCH DRIVER SEAT HEATER SWITCH ECM HOUSING (LEFT FRONT OF ENGINE COMPT) ELECTRONIC BRAKE/TRACTION CONTROL MODULE ENGINE CONTROL MODULE FAN CONTROL RELAY FLASHER FUSE 3 FUSE 10 FUSE BLOCK GAUGE CLUSTER HAZARD WARNING SWITCH AUTOMATIC TRANSMISSION WINTER MODE SWITCH HEADLAMP SWITCH HEATED OUTSIDE REAR VIEW MIRROR AND REAR WINDOW DEFOGGER RELAY HEATER AND A/C CONTROL IGNITION COIL BANK 2 IGNITION COIL BANK 1 IGNITION SWITCH INFLATABLE RESTRAINT SENSING AND DIAGNOSTIC AND SEAT BELT PRETENSIONER MODULE INSIDE REAR VIEW MIRROR AUTOMATIC TRANSMISSION RANGE SWITCH INSTRUMENT CLUSTER CRUISE CONTROL SWITCH KEY-IN IGNITION SWITCH LEFT REAR SEAT HEATER SWITCH LEFT WINDSHIELD WASHER NOZZLE LIFTING MAGNET MULTI- FUNCTION RELAY DRIVER SEAT HEATER RELAY PASSENGER SEAT HEATER RELAY O/S MIRROR FUSE 13 OFF ON OUTSIDE REMOTE CONTROL REAR VIEW MIRROR SWITCH PASSENGER SEAT HEATER SWITCH POWER STEERING CONTROL MODULE PPL REAR SUSPENSION LEVELING AIR COMPRESSOR RELAY RED WIRE RIGHT WINDSHIELD WASHER NOZZLE STOP LAMP SWITCH THEFT DETERRENT MODULE TRANSMISSION CONTROL MODULE WINDSHIELD WIPER AND WASHER SWITCH WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MOTOR RELAY WIPER FUSE 9