Cadillac  Xlr 2004-2008
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED/BLACK (+)   @ BCM, C3, Pin D1, See NOTE *1
 STARTER  PURPLE (+) (Not for Remote Start)  @ STARTER or FUSE BLOCK under hood
 STARTER 2  N/A  
 IGNITION 1  PINK (+) (Not for Remote Start)  @ BCM, C4 Pin C8, See NOTE *1
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  N/A  
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  BROWN/WHITE (-)  @ BCM, C2, Pin 5, See NOTE *1
 PARKING LIGHTS ( + )  BROWN (+)  IN HARNESS GOING TO REAR OF VEHICLE
 POWER LOCK  ORANGE/BLACK (TYPE B)  @ LOCK SWITCH in DRIVERS DOOR
 POWER UNLOCK  ORANGE/BLACK (TYPE B)  @ LOCK SWITCH in DRIVERS DOOR
 DOOR TRIGGER  GRAY/BLACK (-) and TAN/WHITE (-) Use both See NOTE *2  @ BCM, C1, Pins 51 and 53, See NOTE *1
 DOMELIGHT SUPERVISION  WHITE (-)  @ BCM, C3, Pin A10, See NOTE *1
 TRUNK RELEASE  BROWN/WHITE (-)  @ BCM, C1 Pin 71, See NOTE *1
 SLIDING POWER DOOR  N/A  
 HORN  TAN (-)  @ BCM, C2 Pin 14, See NOTE *1
 TACH  WHITE  @ ECM, See NOTE *3
 WAIT TO START LIGHT  N/A  
 BRAKE  LIGHT BLUE (+)  @ BCM, C4, Pin D4, See NOTE *1
 FACTORY ALARM DISARM   DISARMS with FACTORY REMOTE ONLY  
 ANTI-THEFT  YES , No Information at this time!!!  
 EXTRA INFORMATION
 NOTE *1 the BCM is part of the FUSE/RELAY Block on the Passenger foor board under the carpet. The BCM will have the following connectors: C1(72 Pin GRAY), C2(72 Pin GRAY), C3(41Pin RED) and C4(68 Pin GRAY) Plugs. NOTE *2 the DRIVERS DOOR is a GRAY/BLACK(-) and the PASSENGER DOOR is a TAN/WHITE(-) located at the BCM. When connecting to an Alarm System use both wires and DIODE ISOLATE See DIAGRAM NOTE *3 the ECM is located in the front Passenger fender, must remove the wheel to access the panel behind the wheel. The TACH wire is in the BLUE Plug Pin 26