Cadillac XLR I (2003-2009) radio Wiring diagrams

11 6 VEHICLE SPEED SIGNAL HUD CLASS 2 SERIAL DATA 2500 2501 COMPUTER DATA LINES SYSTEM 5 1 PNK WIRE 5 VOLT REF 53 33 SERIAL DATA BUS + SERIAL DATA BUS - ACCELERATION PEDAL POSITION (APP) SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) AUTOMATIC TRANSMISSION AUXILIARY PW RLY COIL SUPPLY VOLTAGE BATTERY POSITIVE VOLTAGE BLK TAN/ WIRE BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SWITCH SIGNAL BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE CTRL SET/COAST, RESUME/ ACCEL SW SIGNAL DK BLU WIRE DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) FUSE GAP ADJUST SWITCH SIGNAL GRN WIRE GROUND GRY WIRE HEADS UP DISPLAY (HUD) (TOP LEFT SIDE OF DASH) HIGH SPEED GMLAN SERIAL DATA BUS + HIGH SPEED GMLAN SERIAL DATA BUS - HOT AT ALL TIMES HUD MESSAGE CENTER CRUISE SPEED SET XXX INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING WHEEL) INPUT/OUTPUT SPEED SENSORS (ISS/OSS) ASSEMBLY LOGIC LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REF LT BLU WIRE MESSAGE REQUEST NCA WIRE OFF RESUME/ ACCEL + OSS SIGNAL BATT + VOL ISS SIGNAL PNK (NOT USED) WIRE PNK WIRE PPL RADIO RED WIRE RED/WHT WIRE SET/COAST STOP LAMP SWITCH SIGNAL SWITCH SIGNAL DATA BUS - DATA BUS + ISS SIGNAL BATT + VOL OSS SIGNAL TAN WIRE TAN/BLK WIRE TEHC MODULE ASSEMBLY THROTTLE ACTUATOR CONTROL (TAC) MOTOR THROTTLE BODY ASSEMBLY (TOP OF ENGINE, AT INTAKE MANIFOLD) THROTTLE POSITION (TP) SENSOR TURN SIGNAL/ MULTIFUNCTION SWITCH UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VEHICLE SPEED SIGNAL WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

A/C COMPRESSOR CLUTCH AIR COOLER (CAC) COOLANT PUMP AUDIO AMPLIFIER AUTOMATIC TRANSMISSION BATTERY BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH CD CHANGER COOLANT LEVEL SWITCH DATA LINK CONNECTOR (DLC) ELECTRONIC BRAKE CONTROL MODULE (EBCM) ENGINE CONTROL MODULE (ECM) FAN CONTROL MODULE FUEL PUMP RELAY 55 FUEL RAIL FUSE BLOCK HDLP WASH RELAY 46 HEADLAMP WASHER FLUID PUMP WINDSHIELD WASHER FLUID PUMP HORN ASSEMBLY HEADLAMP MODULE IGNITION COIL/ MODULE 1 IGNITION COIL/ MODULE 2 IGNITION COIL/ MODULE 3 IGNITION COIL/ MODULE 4 IGNITION COIL/ MODULE 5 IGNITION COIL/ MODULE 6 IGNITION COIL/ MODULE 7 IGNITION COIL/ MODULE 8 INTAKE AIR TEMPERATURE (IAT)/MASS AIR FLOW (MAF) SENSOR LEFT FRONT FOG LAMP LEFT FRONT MARKER LAMP LEFT FRONT PARK LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP BALLAST LEFT HEADLAMP HIGH BEAM SOLENOID RADIO REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) BODY CONTROL MODULE (BCM) RIGHT FRONT FOG LAMP RIGHT FRONT MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP BALLAST RIGHT FRONT PARK LAMP RIGHT HEADLAMP HIGH BEAM SOLENOID SENSOR (FLS) SPLICE PACK TEHC MODULE ASSEMBLY WHT WIRE WINDSHIELD WASHER FLUID LEVEL SWITCH WIPER RUN/ACC RELAY 42 FOG LP RELAY 38

25 39 12 ENG SPEED VSS MIL CTRL 4.6L 44 9 45 FUEL LVL 1 LOW REF FUEL LVL 2 45 65 LOW REF ENG OIL SENS 53 33 SERIAL DATA + SERIAL DATA - 60 24 40 OIL PRES SIG LOW REF BATTERY POSITIVE VOLTAGE BELT SWITCH BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CLSTR/ HUD FUSE 26 BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN/WHT WIRE DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH ECT SIG ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR SIDE OF RIGHT CYLINDER HEAD) ENGINE OIL LEVEL, TEMPERATURE SENSOR ENGINE OIL PRESSURE (EOP) SENSOR (LOWER LEFT SIDE OF ENGINE) FUEL LEVEL SENSOR (LEFT) FUEL LEVEL SENSOR (RIGHT) (TOP OF RIGHT FUEL TANK) FUEL PUMP, SENDER ASSEMBLY (IN LEFT FUEL TANK) GROUND GRY WIRE HEAD UP DISPLAY (HUD) (TOP LEFT SIDE OF DASH) HOT AT ALL TIMES HUD MESSAGE CENTER IMAGE DOWN SIGNAL IMAGE UP IMAGE DOWN IMAGE UP SIGNAL INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER CONSOLE) LOGIC LOW REF LT BLU WIRE MESSAGE REQUEST NCA WIRE OIL LVL SW PNK 5 6 WIRE PNK LOW REF WIRE PNK WIRE RADIO REAR OBJECT SENSOR CONTROL MODULE (BEHIND REAR COMPT STOWAGE TRIM PANEL) RED/WHT WIRE SERIAL DATA SPLICE PACK TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDER SEAT BASE) UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VEHICLE SPEED SIGNAL VSS WHT 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

4.6L ADAPTIVE CRUISE MODULE (ACM) AUTOMATIC TRANSMISSION SHIFT LEVER AUTOMATIC TRANSMISSION SHIFT LEVER DIGITAL RADIO RECEIVER BATT 3 FUSE 26 BLK WIRE BTSI SOL/COL LOCK FUSE 10 CD CHANGER CLSTR/HUD FUSE 26 DATA LINK CONNECTOR (DLC) DECK LID CLOSE/PARK/ BRK B FUSE 32 DIODE 1 DIODE 2 DR LOCKS FUSE 15 DRIVER CLIMATE CONTROL SEAT MODULE PASSENGER CLIMATE CONTROL SEAT MODULE FROM BATT 1 FUSE 33 (DIAGRAM 1 OF 4) HVAC CONTROL MODULE HVAC CONTROL MODULE EXHAUST FLOW CONTROL MODULE HVAC/ PWR SND FUSE 29 I/P RELAY BLOCK (FRONT OF RIGHT FRONT FOOTWELL, BEHIND CARPET) INADV- ERTENT LOAD CONTROL PCB RELAY INSIDE AIR TEMPERATURE SENSOR INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER (IPC) HEAD UP DISPLAY (HUD) INTERIOR LIGHTS FUSE 17 ISRVM/ HVAC FUSE 25 LOGIC PNK PNK WIRE PNK WIRE PRK/BRK HOLD RELAY 47 RADIO RADIO, S-BAND/ VICS FUSE 27 REAR COMPARTMENT LID RELEASE/ CLOSE SWITCH REAR FOG/ ALDL FUSE 30 REAR OBJECT SENSOR CONTROL MODULE RED WIRE RED/WHT WIRE REVERSE LAMP RELAY 6 RLY CTRL RPA/H/C SEAT/WIPR RELAYS FUSE 14 RUN/CRANK RELAY 7 STOP LAMP RELAY 24 STOP/B/U LPS FUSE 5 TO BATT 5 FUSE 7 (DIAGRAM 3 OF 4) TO GMLAN DEVICES FUSE 1 (DIAGRAM 3 OF 4) TRAFFIC INFORMATION RECEIVER TUTD SW/ STRG COL SW FUSE 28 UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) W/ DIGITAL RADIO W/ INFORMATION SYSTEM 004 W/S WASH RELAY 36 WHT WIRE WIPER HI/LO RELAY 41 WIPER ON/OFF RELAY 45 WIPER/ WASHER SYSTEM

1 2 ANTENNA ENABLE SIG FM COMPOSITE SIG ANTENNA GROUND PLANE AUXILIARY PWR RLY CTRL BARE BCM CLASS 2 SER DATA BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE CLASS 2 DATA CLASS 2 SER DATA COAX COAX 2 3 4 COAX GPS ANTENNA SIG COAX RT RADIO ANT MOD SIG COMPARTMENT, UNDER BATTERY) COMPUTER DATA LINES SYSTEM DECKLID LINER ASSEMBLY DK BLU WIRE DK DK DK GRN WIRE DK GRN/WHT WIRE FM COMPOSITE SIGNAL GRN WIRE GROUND GROUND BATTERY VSS ANTENNA ENABLE SIG HEAD UP DISPLAY (HUD) (TOP LEFT SIDE OF DASH) HUD MESSAGE CENTER IGN INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING WHEEL) INSTRUMENT CLUSTER SYSTEM LEFT ANTENNA LEFT RADIO ANTENNA MODULE LH LOW LEV AUDIO (+) LH LOW LEV AUDIO (-) DRAIN LOGIC MESG REQ LOGIC STRNG WHL CTRL 2 SIG LT GRN WIRE LT RADIO ANTENNA MOD SIG LT RADIO MODULE SIG MUTE NCA WIRE ORG/ WIRE PNK 1 2 3 4 5 VOICE REC AUDIO SIG VOICE REC AUD LOW REF WIRE PNK 13 14 WIRE PNK PNK WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL PPL 11 12 PPL PPL RADIO RADIO ANTENNA INDUCTOR RED/WHT WIRE RIGHT ANTENNA RIGHT RADIO ANTENNA MODULE RT ANTENNA AM SIG RT RADIO ANTENNA MOD SIG SEEK UP STEERING WHEEL CONTROL SWITCH ASSEMBLY TAN WIRE VOICE RECOG- NIZE SRCE WHT WIRE YEL WIRE

BANK 1 SENSOR 2 (RIGHT SIDE EXHAUST, AFTER CATALYTIC CONVERTER) BANK 2 SENSOR 2 (IN LEFT EXHAUST PIPE, AFTER CATALYTIC CONVERTER) BAROMETRIC PRESSURE (BARO) SENSOR (TOP LEFT SIDE OF ENGINE) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE DK GRN/ WHT WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR SIDE OF RIGHT CYLINDER HEAD) FROM ODD INJ FUSE 12 (DIAGRAM 4 OF 5) FUSE 6 GEN TURN ON SIG GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATED OXYGEN INSTRUMENT PANEL CLUSTER (IPC) INTAKE AIR TEMPERATURE SENSOR (IN AIR INTAKE) LOGIC CLASS 2 SER DATA IGN (ECM) ESS LT BLU WIRE LT GRN WIRE MIL IND MESSAGE CENTER NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 12 13 14 15 16 17 18 19 WIRE PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE RADIO STARTING/ CHARGING SYSTEM TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VSS WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

11 12 13 PNK WIRE BANK 2 SENSOR 1 (IN LEFT EXHAUST PIPE, BEFORE CATALYTIC CONVERTER) BANK 2 SENSOR 2 (IN LEFT EXHAUST PIPE, AFTER CATALYTIC CONVERTER) BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ECM FUSE 16 ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) ENGINE OIL LEVEL SWITCH (LOWER RIGHT SIDE OF ENGINE) GEN TURN ON SIG GRY WIRE HEATED OXYGEN HOT AT ALL TIMES IAT SENS SIG IGN 1 VOL INSTRUMENT PANEL CLUSTER (IPC) LOGIC CLASS 2 SER DATA B+ LOGIC LOW REF LT BLU WIRE LT GRN WIRE MAF SENS SIG MESSAGE CENTER MIL IND NCA WIRE ORG/ WIRE ORG/BLK WIRE PNK 3 4 WIRE PNK PNK 6 7 WIRE PNK PNK PNK PNK WIRE PNK WIRE PPL PPL/WHT WIRE RADIO RUN/ CRANK RELAY 7 RUN/ CRANK RLY CTRL STARTING/ CHARGING SYSTEM STP LMP SW SIG VLT SIG TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VSS WHT WIRE YEL WIRE