Cadillac XLR I (2003-2009) hud class 2 serial data 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

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

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

1 2 3 4 5 6 7 LOW REF GROUND BATT SUPP VOL 1250 342 (RIGHT SIDE OF ENGINE COMPT) BLK WIRE CHECK GAUGES COMPUTER DATA LINES SYSTEM COOLANT LEVEL SWITCH (LEFT SIDE OF ENGINE COMPT) COOLANT OVER TEMP ENGINE HOT/STOP ENGINE LOW COOLANT COOLFAN FUSE 25 COOLING FAN MOTOR (LOWER FRONT OF ENGINE) DK GRN WIRE ENGINE CONTROL MODULE (ECM) (LOWER RIGHT REAR OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE (ECT) SENSOR (REAR SIDE OF RIGHT CYLINDER HEAD) FAN CONTROL MODULE (AT LOWER RIGHT OF COOLING FAN) GRY WIRE HOT AT ALL TIMES HUD CLASS 2 SERIAL DATA IGN MESSAGE REQUEST INSTRUMENT PANEL CLUSTER (IPC) MESSAGE CENTER IPC CLASS 2 SERIAL DATA LOGIC LOGIC HVAC CONTROL MODULE (AT CENTER OF DASH) MESSAGE REQUEST IGN RED WIRE RED/BLK WIRE RED/ORG WIRE SERIAL DATA IND CTRL SPEED CTRL TAN WIRE TAN/BLK WIRE UNDERHOOD FUSE BLOCK (RIGHT REAR OF ENGINE COMPT) WHT WIRE YEL WIRE YEL/BLK WIRE