Cadillac XLR I (2003-2009) (in instrument panel harness, at base of right a pillar behind trim panel, Wiring diagrams

A/C COMP FUSE 15 A/C COMP RELAY 35 A/C COMPRESSOR CLUTCH (LOWER RIGHT FRONT OF ENGINE) A/C OFF SWITCH BLK LT GRN/ WIRE BLK WIRE BLK/PNK WIRE BLOWER SPEED SWITCH BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE COMPT) COOLANT LEVEL SWITCH (LEFT SIDE OF ENGINE COOLFAN FUSE 25 DEFOG RLY CTRL DIMMING CTRL BLOWER CTRL DEFOGGER SYSTEM INTERIOR LIGHTS SYSTEM DEFROST CTRL DEFROST SWITCH DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE GND SERIAL DATA GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT W/ RUN/ CRANK RELAY 7 ENERGIZED HVAC CONTROL MODULE (AT CENTER OF DASH) HVAC FUSE 28 HVAC/ PWR SND FUSE 29 IGN IGN 1 RELAY 44 INTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM ISRVM/ HVAC FUSE 25 LEFT AIR TEMPERATURE SWITCH LOGIC LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MIRRORS SYSTEM MODE CTRL MODE SWITCH NCA WIRE OFF CTRL ON UPPER RIGHT FRAME RAIL, GROUNDED TO PNK 17 18 WIRE PNK WIRE PNK/BLK WIRE PNK/WHT WIRE RECIRC CTRL RECIRCULATION SWITCH RED/BLK WIRE RED/WHT WIRE RIGHT AIR TEMPERATURE SWITCH SEATS SYSTEM SPEED CTRL SPLICE PACK SPLY VOLTAGE TAN WIRE TAN/BLK WIRE TEMP CTRL UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VALET SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

A/C REFRIGERANT PRESSURE SENSOR (RIGHT SIDE OF ENGINE COMPT) ASPIRATOR BLOWER MOTOR BLK WIRE BLK/WHT WIRE BLOWER MOTOR BRN WIRE CHECK GAGES COMPUTER DATA LINES SYSTEM COOLANT OVER TEMP ENGINE HOT/STOP ENGINE LOW COOLANT DK BLU WIRE DK BLU/WHT WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR SIDE OF RIGHT CYLINDER HEAD) GRY WIRE GRY/BLK WIRE HOT ENGINE-A/C OFF SERVICE A/C HUD CLASS 2 SERIAL DATA HUD MESSAGE CENTER INSIDE AIR TEMPERATURE SENSOR INSTRUMENT PANEL CLUSTER (IPC) MESSAGE CENTER IPC CLASS 2 SERIAL DATA LEFT AIR TEMPERATURE ACTUATOR (LEFT SIDE OF HVAC MODULE) LOGIC LOW REF LOW REF GND LOWER LEFT AIR TEMPERATURE SENSOR (ON LEFT SIDE OF HVAC MODULE) LT BLU/BLK WIRE LT GRN WIRE LT GRN/BLK WIRE MESSAGE REQUEST IGN MESSAGE REQUEST MESSAGE REQUEST B+ MODE ACTUATOR (RIGHT SIDE OF HVAC MODULE) ORG/BLK WIRE PNK 17 18 WIRE PNK WIRE PNK/WHT WIRE RECIRCULATION ACTUATOR (RIGHT SIDE OF BLOWER MOTOR) RED WIRE RED/BLK WIRE RED/ORG WIRE RIGHT AIR TEMPERATURE ACTUATOR (RIGHT SIDE OF HVAC MODULE ASSEMBLY) RLY CTRL SENS SIG SERIAL DATA SPEED CTRL SPEED CTRL BAT B+ CONTROL PROCESSOR (RIGHT SIDE OF BLOWER GND GND MOTOR) LOGIC SPLICE PACK SUNLOAD SENSOR ASSEMBLY (UPPER CENTER OF DASH) SUPP VOL BAT TAN WIRE TAN/BLK WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1047 1359 19 4 SERIAL DATA LCD BACKLIGHT 19 23 SERIAL DATA LCD BACKLIGHT AUTOMATIC TRANS- MISSION SHIFT LEVER BATTERY BLK WIRE BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) LOGIC BRN WIRE BRN/WHT WIRE CLSTR/ HUD FUSE 26 COMPUTER DATA LINES SYSTEM DIM CTRL PANEL LMPS DIM DOWN SWITCH DIMMER SWITCH DIM UP SWITCH DIMMER/HEAD UP DISPLAY (HUD) SWITCH DRIVER DOOR LOCK SWITCH DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER DOOR SWITCH ASSEMBLY (DDSA) DRIVER INFORMATION CENTER (DIC) SWITCH DRIVER INTERIOR DOOR HANDLE SWITCH (ON DRIVER'S INNER DOOR PANEL) FOLDING TOP CONTROL SWITCH FRONT PASSENGER DOOR LOCK SWITCH FRONT PASSENGER DOOR MODULE (FPDM) (IN FRONT DOOR) FRONT PASSENGER WINDOW SWITCH FUEL DOOR RELEASE SWITCH GRN WIRE GROUND GROUND DIMMER UP DIMMER DOWN DIMMER SELECT SPLY VOLT GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLK WIRE HARNESS, AT BASE OF LEFT A PILLAR BEHIND TRIM PANEL, GROUNDED HAZARD SWITCH HEAD HOT AT ALL TIMES HVAC CONTROL MODULE (AT CENTER OF DASH) I/P FUSE BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) IGNITION MODE SWITCH REAR COMP- ARTMENT LID RELEASE SWITCH (INTERIOR) ILLUM ILLUM (3 BULBS) INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING WHEEL) INSTRUMENT PANEL CLUSTER (IPC) INTERIOR LIGHTS FUSE 17 LOGIC MEMORY SEAT SWITCH ORG/ WIRE PANEL, GROUNDED TO PARK AUTO OFF PARK LAMP PARK LAMP RELAY 37 PARK LAMP SW SIGNAL PARK LAMPS FUSE 8 PASSENGER DOOR HANDLE SWITCH (INTERIOR) (ON DRIVER'S INNER DOOR PANEL) POWER DISTRIBUTION SYSTEM RADIO RED WIRE RED/WHT WIRE SEATS, MEMORY SYSTEMS SENSOR BREAKOUT) SERIAL DATA SERIAL DATA BATTERY PARK LAMPS PANEL LAMPS GROUND PANEL LAMPS SERIAL DATA ILLUM SUPPLY SPLICE PACK SPLY VOLT GROUND STEERING WHEEL CONTROL SWITCH ASSEMBLY STR WHL DIMMING FUSE 39 SUPPLY VOLT TAN WIRE TILT/ TELE SW/ MEM SEAT MOD FUSE 22 TRACTION CONTROL SWITCH TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) WHT WIRE YEL WIRE

49 PNK WIRE BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DECK LID CLOSE/ PARK/BRK B FUSE 32 HOT AT ALL TIMES I/P RELAY BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) INSTRUMENT PANEL CLUSTER (IPC) PARK BRAKE SWITCH SIGNAL LOGIC PARK BRAKE RELAY 1 CTRL LT BLU WIRE LT GRN WIRE PARK BRAKE HOLD SOLENOID PARK BRAKE PEDAL ASSEMBLY PARK BRAKE RELAY 1 CTRL PARK BRAKE RELEASE SOLENOID PARK BRAKE SOL A FUSE 8 PARK BRAKE SWITCH PARK BRK HOLD RELAY PARK BRK RELEASE RELAY POWER DISTRIBUTION SYSTEM RED WIRE TAN WIRE WHT WIRE

4.6L 4.6L TO IGNITION MODE SWITCH (4 OF 4) ABS/MRRTD/AFS FUSE 1 ACC/TCM FUSE 3 ACCA/DRIV DR SW FUSE 21 AUTOMATIC TRANSMISSION SHIFT LEVER AUX PWR FUSE 45 AUXILIARY POWER OUTLET AUXILIARY POWER RELAY (BEHIND RIGHT SIDE OF DASH) BATT 5 FUSE 7 BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CIGAR LIGHTER CIGAR LTR FUSE 46 CRANK RELAY 43 DK GRN WIRE ECM FUSE 16 ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) FOLDING TOP CONTROL SWITCH MEMORY SEAT SWITCH FOLDING TOP MODULE REAR COMPARTMENT LID OPEN SWITCH FOLDING TOP/ TRUNK LATCH FUSE 44 FORWARD LOCKING SENSOR (FLS) ELECTRONIC SUSPENSION CONTROL (ESC) MODULE FORWARD LOOKING SENSOR (FLS) FROM BATT 1 FUSE 33 (DIAGRAM 1 OF 4) FROM RPA/H/C/ SEAT/WIPR RELAYS FUSE 14 (DIAGRAM 2 OF 4) FROM STOP/B/U/ LPS FUSE 5 (DIAGRAM 2 OF 4) GMLAN DEVICES FUSE 13 HEADER LATCH SWITCH HEADER UNLATCH SWITCH HEADLAMP MODULE I/P RELAY BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) IGN SW/ INTR SENSR FUSE 23 INFLATABLE RESTRAINT FRONT PASSENGER PRESENCE SYSTEM (PPS) MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) INFLATABLE RESTRAINTS STEERING WHEEL MODULE COIL LOGIC NCA WIRE ONSTAR FUSE 20 PNK PNK WIRE PNK WIRE PRK, BRK SOL A FUSE 8 PRK/ BRK RELEASE RELAY 48 RED WIRE SCMPSIR SW FUSE 18 STEERING WHEEL CONTROL SWITCH ASSEMBLY TECH MODULE ASSEMBLY TILT/ TELESCOPE SWITCH TILT/TELE SW/MEM SEAT MOD FUSE 22 TURN/SIGNAL MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VEHICLE COMMUNICATION INTERFACE MODULE (VCIM) W/ ONSTAR WHT WIRE YEL WIRE

ACCA/DRIV DR SW FUSE 21 BATTERY POSITIVE VOLT BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DDM CLASS 2 SER DATA DOWN DR CNTRLS CIRCUIT BREAKER 34 DRIVER DOOR MODULE (DDM) (IN DRIVER'S DOOR) DRIVER DOOR SWITCH ASSEMBLY (DDSA) DRIVER WINDOW MOTOR (IN CENTER OF DRIVER'S DOOR) DRIVER WINDOW SWITCH DRIVER WNDO DOWN SIGNAL DRIVER WNDO EXPRESS SIG DRIVER WNDO UP SIGNAL EXPRESS UP/DOWN FRONT PASSENGER DOOR MODULE (FPDM) (IN FRONT DOOR) FRONT PASSENGER WINDOW MOTOR (CENTER OF PASSENGER'S DOOR) FRONT PASSENGER WINDOW SWITCH GROUND GRY WIRE HOT AT ALL TIMES I/P FUSE BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) LOGIC PASS WNDO DOWN SIGNAL PASS WNDO EXPRESS SIG PASS WNDO UP SIGNAL PASSENGER WINDOW SWITCH PDM CLASS 2 SER DATA POWER WINDOW MOTOR FR PASSENGER DOWN SIG POWER WINDOW MOTOR FRONT PASSENGER UP SIG POWER WINDOW MOTOR LEFT FRONT UP CONTROL POWER WINDOW MOTOR LT FRONT DOWN CONTROL POWER WINDOW MOTOR RIGHT FRONT UP CONTROL POWER WINDOW MOTOR RT FRONT DOWN CONTROL PPL PPL POWER WINDOW SWITCH RIGHT FRONT EXPRESS SIG RED WIRE RED/WHT WIRE SERIAL DATA SPLICE PACK TAN WIRE WHT WIRE

5936 743 5513 138 PPL OPEN SW SIG ACC VOLT CLASS 2 SER DATA REL/CLOSE SW SIG AUXILIARY POWER RELAY (BEHIND RIGHT SIDE OF DASH) BATT 1 FUSE 33 BATT 3 FUSE 26 BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRK B FUSE 32 BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DECK LID CLOSE/PARK/ DK GRN WIRE DOOR CONTROLS CIRCUIT BREAKER 34 EXTERIOR REAR COMPARTMENT LID RELEASE SWITCH (LOWER LEFT OF REAR BUMPER) FLDG TOP/ TRUNK LATCH FUSE 44 FOLDING TOP MODULE (LEFT SIDE OF FOLDING TOP STORAGE COMPT) FUEL DOOR RELAY 52 FUEL DOOR RELEASE ACTUATOR FUEL DOOR RELEASE SWITCH GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES I/P RELAY BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) INSTRUMENT PANEL CLUSTER INTERIOR REAR COMPARTMENT LID RELEASE SWITCH LOGIC LOGIC CLASS 2 SER DATA LT BLU WIRE LT GRN WIRE MESSAGE CENTER MSG REQ ORG/ WIRE ORG/BLK WIRE PNK RFA CLASS 2 SER DATA TRUNK REL SW SIG WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER TOPS SYSTEM PPL REAR COMPARTMENT LID OPEN SWITCH REAR COMPARTMENT LID PULL- DOWN ACTUATOR REAR COMPARTMENT LID RELEASE/ CLOSE SWITCH (RIGHT SIDE OF REAR COMPT LID) RED WIRE RED/BLK WIRE RED/WHT WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (RIGHT SIDE OF DASH) TAN WIRE TRANSMISSIONS SYSTEM TRUNK AJAR IND UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE