Cadillac XLR I (2003-2009) logic Wiring diagrams

ACC/TCM FUSE 3 ACCESSORY VOLTAGE DATA BUS - DATA BUS + IGNITION 1 VOLTAGE DATA BUS + DATA BUS - AUTOMATIC TRANSMISSION BLK WIRE BLK/WHT WIRE COMPUTER DATA LINES SYSTEM ECM/TCM FUSE 11 GEAR HIGH TRANS TEMP SERVICE TRANS SHIFT TO PRK GMLAN (ECM) GRN WIRE GRY WIRE HEADS UP DISPLAY (HUD) (TOP LEFT SIDE OF DASH) HOT AT ALL TIMES HOT IN RUN OR START HUD CLASS 2 SERIAL DATA HUD MESSAGE CENTER IN SPEED SENSOR SIG BATTERY POSITIVE VOLT OUT SPEED SENSOR SIG INPUT/OUTPUT SPEED SENSORS (ISS/OSS) ASSEMBLY INSTRUMENT PANEL CLUSTER (IPC) INTERNAL MODE SWITCH (IMS) ASSEMBLY IPC CLASS 2 SERIAL DATA ISS SIGNAL BATTERY POS VOLT OSS SIGNAL LOGIC MESSAGE CENTER MESSAGE REQUEST (TCM) NCA WIRE ORG/BLK WIRE PARK/NEUTRAL SIG BATTERY POS VOLT GROUND STOP LAMP SW SIG TAP UP/DN SW SIG PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/WHT WIRE TAN WIRE TAN/BLK WIRE TAP UP/DWN GEAR TEHC MODULE ASSEMBLY UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) UP SHIFT IND WHT WIRE YEL WIRE YEL/BLK WIRE

46 53 33 PARK/NEUTRAL SIG DATA BUS + DATA BUS - 7 18 20 STOP LAMP SW SIG ACCESSORY VOLTAGE B+ VOLTAGE AUTOMATIC TRANSMISSION SHIFT LEVER AUX PWR RLY COIL SUPPLY VOL BLK WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BTSI SOL/COL LOCK FUSE 10 COMPUTER DATA LINES SYSTEM DK GRN WIRE DK GRN/WHT WIRE ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) GRY/BLK WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (AT CENTER OF DASH) I/P LAMP CTRL LOGIC ORG/BLK WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED/WHT WIRE RELAY CNTL RUN/ CRANK RELAY 7 STOP LMP SW SIG TAN WIRE TAN/BLK WIRE TAP UP + TAP DWN - TAP UP/ DWN ENABLED SIG TAP UP/ TAP DWN ENABLED SIG TAP UP/ TAP DWN TRANS- MISSION ENABLE SWITCH TAP UP/TAP DOWN SWITCH TRANS SHIFT SELECT SW (PARK) SIG TRANSMISSION SHIFT SELECT SWITCH TUTD SW/ STRG COL SW FUSE 28 VOLT WHT WIRE YEL WIRE

BATTERY BLK WIRE BLK/WHT WIRE CHECK GAGES CLASS 2 (BCM) IGN MESSAGE REQUEST (BCM) B+ IPC CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) FUSIBLE LINK (8 GA- GENERATOR GENERATOR FIELD DUTY CYCLE SIGNAL GENERATOR TURN ON SIGNAL GRY WIRE HEAD UP DISPLAY (HUD) HIGH SPEED GMLAN SERIAL DATA BUS + HORN FUSE 2 HUD CLASS 2 SERIAL DATA HUD MESSAGE CENTER INSTRUMENT PANEL CLUSTER (IPC) LOGIC LOGIC MESSAGE REQUEST ORG/ WIRE RED WIRE RED/WHT WIRE SPLICE PACK STARTER TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) VOLTS WHT WIRE YEL WIRE

BEHIND CARPET) BLK WIRE BLOWER SPD CTRL BLOWER TACHO SIG BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE DK BLU WIRE DK GRN WIRE DRIVER CLIMATE CONTROL SEAT MODULE (UNDER DRIVER SEAT) DRIVER HEATED/COOLED SEAT BLOWER MOTOR (UNDER DRIVER SEAT) DRIVER SEAT BACK HEATED/ COOLED VENTILATION MODULE (IN DRIVER SEAT BACK) DRIVER SEAT CUSHION HEATED/ COOLED VENTILATION MODULE (IN DRIVER SEAT CUSHION) DRIVER SEAT TEMP CTRL SW SIG ELEMENT FAN LOW REF FAN VOLT REF GND IGN GRN WIRE GRY WIRE HEATED SEAT LH FUSE 42 HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY 2 ENERGIZED HVAC CONTROL MODULE (AT CENTER OF DASH) HVAC HEATED/ COOL SEAT MODE SIG I/P FUSE BLOCK (FRONT OF RIGHT FRONT FOOTWELL, IGN LOGIC LT BLU/WHT WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK IGN 1 VLT GROUND BATT POS VOLT WIRE PNK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/WHT WIRE RPA/H/C SEAT/WIPR RELAYS FUSE 14 SENSOR SIG TEMP CTRL SWITCH TEMP SENSOR LOW REF TEMP SENSOR LOW REF TEMP SENSOR SIG TEMP SENSOR SIG TEMP SENSOR LOW REF TEMP SENSOR SIG VENTILATION MODULE COOL CTRL VENTILATION MODULE HEAT CTRL WHT WIRE YEL WIRE YEL/BLK WIRE

AMBIENT LIGHT SENSOR IND BACK-UP LAMP PWR BLK WIRE BLK/GRY WIRE BLK/LT BLU WIRE BLK/LT GRN WIRE BLK/ORG WIRE BLK/PNK WIRE BLK/TAN WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) DAY/NIGHT MIRROR SIG ELECTRO- CHROMIC ELECTRO- CHROMIC DAY/NIGHT MIRROR LOW REF EMERGENCY IND EMERGENCY SWITCH GRY WIRE HEADLIGHT SENSOR IND HOT AT ALL TIMES IGN 1 VOLT GND INSIDE REARVIEW MIRROR ISRVM/ HVAC FUSE 25 KEYPAD KEYPAD GREEN LED IND KEYPAD GREEN LED SIG KEYPAD RED WIRE KEYPAD SIG KEYPAD SPLY VOLT LED SIG LEFT LOGIC LT GRN WIRE NCA WIRE ONSTAR BUTTON ASSEMBLY ONSTAR IND ONSTAR SWITCH PASSENGER AIR BAG OFF IND PASSENGER AIR BAG ON IND PHONE IND PHONE SWITCH PNK WIRE RED LED IND WIRE REVERSE LAMP RELAY 6 REVERSE LAMP RLY CTRL RUN/ CRANK RLY CTRL REVERSE LAMPS FUSE 9 RIGHT RUN/ CRANK RELAY 7 SUPPLEMENTAL RESTRAINTS SYSTEM

BEHIND CARPET) BLK WIRE BLOWER SPD CTRL BLOWER SPD CTRL BLU WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRN WIRE BRN/WHT WIRE DK BLU WIRE ELEMENT FAN LOW REF FAN VOLT REF GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ RUN/CRANK RELAY 2 ENERGIZED HTD SEAT RH FUSE 41 HVAC CONTROL MODULE (AT CENTER OF DASH) HVAC HEATED/ COOL SEAT MODE SIG I/P FUSE BLOCK (FRONT OF RIGHT FRONT FOOTWELL, IGN IGN GND LOGIC LT BLU WIRE LT GRN WIRE NCA WIRE PASS SEAT TEMP CTRL SW SIG PASSENGER CLIMATE CONTROL SEAT MODULE (UNDER PASSENGER SEAT) PASSENGER HEATED/COOLED SEAT BLOWER MOTOR (UNDER PASSENGER SEAT) PASSENGER SEAT BACK HEATED/ COOLED VENTILATION MODULE (IN PASSENGER SEAT BACK) PNK IGN 1 VLT GROUND BATT POS VOLT WIRE PNK WIRE PNK/BLK WIRE POWER DISTRIBUTION SYSTEM PPL RED WIRE RED/WHT WIRE RPA/H/C SEAT/WIPR RELAYS FUSE 14 SENSOR SIG TAN WIRE TEMP CTRL SWITCH TEMP SENSOR LOW REF TEMP SENSOR SIG VENTILATION MODULE COOL CTRL VENTILATION MODULE HEAT CTRL WHT 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

5-VOLT REFERENCE A/T SHIFT LOCK CONTROL SOLENOID AUTOMATIC TRANSMISSION SHIFT LEVER BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR (BEHIND LOWER LEFT SIDE OF DASH) BRAKE POSITION SENSOR SIGNAL BRN WIRE BTSI SOL/ COL LOCK FUSE 19 CLASS 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DK GRN WIRE GRY WIRE HOT AT ALL TIMES LOGIC LOW REFERENCE LT GRN WIRE PARK SWITCH PNK WIRE RED WIRE TAN WIRE WHT 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ON IND CTRL OFF IND CTRL 7 8 9 10 11 PPL AIR BAG INDICATOR BLK WIRE BLK/PNK WIRE BLK/TAN WIRE BLK/WHT WIRE BODY CONTROL MODULE (BCM) (BEHIND RIGHT SIDE OF DASH) CLASS 2 (SDM) DATA LINK CONNECTOR (LEFT SIDE OF DASH) DK BLU WIRE DK GRN WIRE GRY WIRE HOT W/ RUN/ CRANK RELAY ENERGIZED INFLATABLE RESTRAINT FRONT PASSENGER SEAT BELT TENSION SENSOR INFLATABLE RESTRAINT I/P MODULE (RIGHT SIDE OF DASH) INSIDE REARVIEW MIRROR INSTRUMENT PANEL CLUSTER IPC CLASS 2 SERIAL DATA ISRV M/HVAC FUSE 14 LOGIC LOW REF LOW REF VOLTAGE REF LT BLU WIRE NCA WIRE ORG/ WIRE PNK 1 2 3 WIRE PNK IGNITION 1 WIRE PNK SERIAL DATA WIRE PNK WIRE PPL PPL SENS SIG GROUND SENS SIG VOLTAGE REF PPL SHORTING BAR PPS OFF IND PPS ON IND SHORTING BAR SPLICE PACK STAGE 1 STAGE 2 TAN WIRE WHT WIRE YEL WIRE