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Vehicle Wiring Details for your
2008-2011 Cadillac CTS Wiring Diagram
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Listed below is the vehicle specific wiring diagram for your car alarm, remote starter or keyless entry installation into your 2008-2011 Cadillac CTS . This information outlines the wires location, color and polarity to help you identify the proper connection spots in the vehicle. Please be sure to test all of your wires with a digital multimeter before making any connections. More information on using a multimeter and testing wires please see our Technical Support Area.

 PART   COLOR  LOCATION
 12 VOLT CONSTANT   CONNECT TO BATTERY   @ BATTERY UNDER HOOD
 STARTER  See NOTE #1  
 STARTER 2  N/A  
 IGNITION 1  PINK (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  BROWN (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  BROWN/WHITE (-)  @ HEADLIGHT SWITCH
 PARKING LIGHTS ( + )  N/A  
 POWER LOCK  See NOTE #1  
 POWER UNLOCK  See NOTE #1  
 DOOR TRIGGER  SEE NOTE #2  
 DOMELIGHT SUPERVISION  USE ANY DOOR TRIGGER  
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK (-)  @ STEERING COLUMN HARNESS
 TACH  N/A  
 WAIT TO START LIGHT  N/A  
 BRAKE  GREEN/WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   N/A  
 ANTI-THEFT  GM'S MULTIPLEX IGNITION/TRANSOPONDER SYSTEM, See NOTE #1  
 EXTRA INFORMATION
 NOTE #1: THIS VEHICLE USES A SPECIAL IGNITION AND ANTI-THEFT THAT REQUIRES A INTERFACE BYPASS MODULE PART #DB-ALL or XK09 and RFLCHGM TO ORDER GO TO THE INTERFACE BYPASS MODULE PAGE ON THIS WEBSITE. NOTE #2: THE LEFT FRONT DOOR TRIGGER IS GRAY/BLACK (-) AT DOOR MODULE INSIDE DRIVERS DOOR. THE RIGHT FRONT DOOR TRIGGER IS BLACK/WHITE (-) AT PASSENGER DOOR MODULE INSIDE PASSENGER DOOR. THE LEFT REAR DOOR TRIGGER IS BLUE/WHITE (-) AT BCM MODULE UNDER STEERING COLUMN. THE RIGHT REAR DOOR TRIGGER IS LIGHT GREEN/BLACK (-) AT BCM MODULE UNDER STEERING COLUMN. USE ALL 4 WIRES AND DIODE ISOLATE EACH.
 
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