Cadillac XLR I (2003-2009) message request 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

5 1 PNK WIRE 5 VOLT REF 53 33 SERIAL DATA BUS + SERIAL DATA BUS - 6 10 11 SWITCH SIGNAL DATA BUS - DATA BUS + ISS SIGNAL BATT + VOL OSS SIGNAL ACC/ TCM FUSE ADAPTIVE CRUISE CONTROL MODULE (ACM) (CENTER OF VEHICLE) ALERT DISTANCE CRUISE SPEED LIMITED FOLLOW DISTANCE SET SPEED SET XX MPH AUTOMATIC TRANSMISSION BCM HIGH SPEED GMLAN SERIAL DATA BUS + BLK TAN/ WIRE BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SWITCH SIGNAL BRN WIRE CAN-BUS CAN-BUS 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) FORWARD LOOKING SENSOR (FLS) GRN WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY ENERGIZED IN ENGINE COMPT, ON UPPER RIGHT FRAME RAIL, INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL (IN STEERING WHEEL) INPUT/OUTPUT SPEED SENSORS (ISS/OSS) ASSEMBLY LOGIC BCM HIGH SPEED GMLAN SERIAL DATA BUS - LOGIC HUD CLASS 2 SERIAL DATA LOGIC HUD CLASS 2 SERIAL DATA VEHICLE SPEED SIGNAL LOW REF LT GRN/BLK WIRE MESSAGE CENTER INSTRUMENT PANEL CLUSTER (IPC) MESSAGE REQUEST MESSAGE REQUEST B+ NCA WIRE OFF RESUME/ ACCEL + OSS SIGNAL BATT + VOL ISS SIGNAL PNK 1 5 2 4 3 IGN 1 BATT GND CAN BUS + CAN BUS - WIRE PNK IGN 1 VOLT BATT POSITIVE VOLT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RADIO 39 7 VEHICLE SPEED SIG STOP LAMP SW SIG RED WIRE RED/WHT WIRE RUN/ CRANK RELAY RUN/ CRANK RLY CTRL SERIAL DATA BUS (+) SERIAL DATA BUS (-) SET/COAST SPLICE PACK STEERING WHEEL CONTROL SWITCH ASSEMBLY TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TEHC MODULE ASSEMBLY THROTTLE ACTUATOR CONTROL (TAC) MOTOR THROTTLE BODY ASSEMBLY (TOP OF ENGINE, AT INTAKE MANIFOLD) THROTTLE POSITION (TP) SENSOR TIGHT CURVE HUD MESSAGE CENTER HEADS UP DISPLAY (HUD) (TOP LEFT SIDE OF DASH) TURN SIGNAL/ MULTIFUNCTION SWITCH TUTD SW/ STRG COL SW FUSE ACCA/DRIV DR SW FUSE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VEHICLE SPEED SIGNAL WHT WIRE YEL WIRE

6.5 CM FROM BREAK OUT TO ACCELERATOR PEDAL POSITION SENSOR) ABS FUSE 27 ABS/MRRTD/AFS FUSE 1 ACCELEROMETER LATERAL BAT BAT IGN 1 VOLTAGE BLK WIRE BLK/WHT WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE FLUID PRESSURE SENSOR (ON BRAKE PRESSURE MODULATOR VALVE) BRAKE IND BRK FLUID LVL SENS SIGNAL BRN WIRE COMPUTER DATA LINES SYSTEM DK BLU WIRE DK GRN WIRE ELECTRONIC BRAKE CONTROL MODULE (EBCM) (LEFT FRONT OF ENGINE COMPT) ELECTRONIC POWER STEERING SYSTEM GMLAN GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IGN INSTRUMENT PANEL CLUSTER (IPC) IPC IPC CLASS 2 SERIAL DATA LEFT FRONT WHEEL SPEED SENSOR (AT LEFT FRONT HUB ASSEMBLY) LEFT REAR WHEEL SPEED SENSOR (AT LEFT REAR HUB ASSEMBLY) LOGIC LOW REF LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MESSAGE CENTER MESSAGE REQUEST ORG/ WIRE PNK PNK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/BLK WIRE RIGHT FRONT WHEEL SPEED SENSOR (AT RIGHT FRONT HUB ASSEMBLY) RIGHT REAR WHEEL SPEED SENSOR (AT RIGHT REAR HUB ASSEMBLY) SENS SIG SENSOR STEERING ANGLE SENSOR STRNG WHEEL POS SIG A STRNG WHEEL POS SIG B TAN WIRE TAN/BLK WIRE TO BRAKE PRESSURE MODULATOR VALVE (DIAGRAM 2 OF 2) TRACTION CONTROL IND ABS IND UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) WHT WIRE YAW RATE YAW, LATERAL ACCELEROMETER SENSOR (BEHIND CENTER OF DASH) YEL WIRE

ABS/ MRRTD/ AFS FUSE 1 BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CLUSTER/ HUD FUSE 26 COMPUTER DATA LINES SYSTEM DK BLU/WHT WIRE DK GRN WIRE ELECTRONIC SUSPENSION CONTROL (ESC) MODULE (LEFT REAR OF LUGGAGE COMPT) GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IPC CLASS 2 LEFT FRONT SUSPENSION DAMPER RIGHT REAR SUSPENSION DAMPER LEFT FRONT SUSPENSION POSITION SENSOR (TOP OF RIGHT FRONT SUSPENSION) LEFT REAR SUSPENSION POSITION SENSOR (AT TOP OF LEFT REAR SUSPENSION) LOGIC INSTRUMENT PANEL CLUSTER (IPC) LOW REFERENCE LOW REFERENCE LOW REFERENCE LOW REFERENCE LT BLU/BLK WIRE LT BLU/WHT WIRE LT GRN/BLK WIRE LT GRN/WHT WIRE MESSAGE CENTER MESSAGE REQUEST MRRTD FUSE 13 NCA WIRE ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL/WHT WIRE RED WIRE RED/WHT WIRE RIGHT FRONT SUSPENSION DAMPER RIGHT REAR SUSPENSION POSITION (AT TOP OF RIGHT REAR SUSPENSION) SERIAL DATA BUS (+) SERIAL DATA BUS (-) SERVICE RIDE CONTROL TAN WIRE TAN/BLK WIRE TAN/WHT WIRE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT)

ABS IND. AIR BAG IND B+ IPC BATTERY BLK WIRE BLU WIRE BRAKE FLUID LEVEL SWITCH (IN BRAKE FLUID RESERVOIR) BRAKE IND BRN WIRE BRN/WHT WIRE CLASS 2 (BCM) CLASS 2 (ECM) CLASS 2 (SDM) COMPUTER DATA LINES SYSTEM COOLANT TEMP DIC UP SW DIC SW ILLUM DIC SW DOME LAMP DIC RESET DIC OPTIONS DIC GROUND DIM DOWN SWITCH DIM UP SWITCH DIMMER SWITCH DIMMER/HEAD UP DISPLAY (HUD) SWITCH DK GRN/WHT WIRE DN UP DOME SWITCH DRIVER INFORMATION CENTER (DIC) SWITCH DRIVER INFORMATION CENTER: MESSAGE CENTER, INFORMATION DISPLAY, WARNING MESSAGES ENGINE SPEED VEHICLE SPEED PARK LAMP WASHER FLUID HAZARD FOG LAMP IND FUEL LEVEL GMLAN (EBCM) GMLAN (ECM) GMLAN CLASS 2 (BCM) GRN WIRE GROUND GROUND DIMMER UP DIMMER DOWN DIMMER SELECT GRY WIRE HEADLAMPS ON IND HIGH BEAM IND IGN ILLUM ILLUMINATION (3 BULBS) IMAGE SWITCH INFORMATION SWITCH INSTRUMENT PANEL CLUSTER (IPC) IPC KM/H IND LEFT TURN IND LOGIC LOW TIRE PRESSURE IND LT BLU WIRE MALFUNCTION IND MESSAGE REQUEST MPH IND OIL PRESSURE OPTIONS SWITCH ORG/ WIRE PANEL LAMP SUPPLY PANEL LAMPS PANEL LAMPS PARK BRAKE BRAKE FLUID PARK BRAKE PEDAL ASSEMBLY PNK 5 6 WIRE PNK WIRE PPL RED/WHT WIRE RESET SWITCH RIGHT TURN IND SEAT BELT IND SECURITY IND SERIAL DATA SPEEDOMETER TACHOMETER TAN/WHT WIRE TRACTION OFF IND TURN SIGNAL AUDIBLE IND UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) UPSHIFT IND VSS WHT WIRE WIPER/WASHER SYSTEM YEL WIRE

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

AUTOMATIC TRANSMISSION PARK/ NEUTRAL SIGNAL BATT 3 FUSE 26 BATTERY BCM CLASS 2 SERIAL DATA BCM IGNITION MODE DATA SIGNAL BLK WIRE BLK/WHT WIRE BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR SIGNAL BRN WIRE CHARGING CIRCUIT COMPUTER DATA LINES SYSTEM CRANK RELAY 43 ECM FUSE 16 ECM HIGH SPEED GMLAN SERIAL DATA BUS - ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) GROUND GRY WIRE HIGH SPEED GMLAN SERIAL DATA BUS + IGNITION MODE SWITCH INSTRUMENT PANEL CLUSTER (IPC) IPC CLASS 2 SERIAL DATA LOGIC LOW REF LT GRN WIRE LT GRN/WHT WIRE MESSAGE CENTER MESSAGE REQUEST NCA WIRE OFF ORG/BLK WIRE PARK/NEUTRAL SIGNAL PNK WIRE PPL PRESS BRAKE TO START RED WIRE RUN/CRANK RELAY 7 RUN/CRANK RELAY CTRL SPLICE PACK STARTER STARTER ENABLE RELAY CONTROL STARTER FUSE 30 TAN WIRE TAN/BLK WIRE TEHC MODULE ASSEMBLY UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) YEL WIRE YEL/BLK WIRE

22 3 11 SDM CLASS 2 SERIAL DATA LEFT SEAT BELT SW LOW REF 5 66 67 PK LMP SW ON SIG LF TURN SIG SW RF TURN SIG SW 55 44 BCM CLASS 2 SERIAL DATA LF DR OPEN SW SIG AUDIBLE ALARM BCM HIGH SPD GMLAN SERIAL DATA BUS - BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN/WHT WIRE CLASS 2 (RCDLR) B+ CLASS 2 (SDM) COMPUTER DATA LINES SYSTEM CONSOLE) DK BLU WIRE DK BLU/WHT WIRE DRIVER DOOR LATCH AJAR CLOSED OPEN DRIVER SEAT BELT BUCKLE DRIVER SEAT BELT SWITCH ECM HIGH SPD GMLAN SERIAL DATA BUS - ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) GRY WIRE HEAD INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (SDM) (UNDER CENTER INSTRUMENT PANEL CLUSTER (IPC) INTERNAL ANTENNA IPC CLASS 2 SERIAL DATA LEFT FRONT TIRE PRESSURE MONITOR SENSOR LEFT REAR TIRE PRESSURE MONITOR SENSOR LF TURN SIG SW LOGIC IPC LOW TIRE PRESSURE IND LT BLU/WHT WIRE LT GRN WIRE MESSAGE CENTER MESSAGE REQUEST NCA WIRE OFF AUTO PARK PNK RFA CLASS 2 SERIAL DATA WIRE PNK WIRE REMOTE CONTROL DOOR LOCK RECEIVER (RCDLR) (BEHIND RIGHT SIDE OF DASH) RF TURN SIG SW RIGHT FRONT TIRE PRESSURE MONITOR SENSOR RIGHT REAR TIRE PRESSURE MONITOR SENSOR SEAT BELT IND SOLID STATE SUPPLEMENTAL RESTRAINTS SYSTEM PNK PNK WIRE TAN WIRE TAN/BLK WIRE TAN/WHT WIRE TURN SIGNAL/ MULTIFUNCTION SWITCH WHT WIRE