Cadillac  Escalade Ext 2003-2004
 PART   COLOR  LOCATION
 12 VOLT CONSTANT   RED (+) and RED/WHITE (+)   @ IGNITION SWITCH HARNESS
 STARTER  YELLOW (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  PINK (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  WHITE (+), See NOTE #5  @ IGNITION SWITCH HARNESS
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  ORANGE (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  N/A  
 KEYSENSE  N/A  
 PARKING LIGHTS ( - )  GRAY/BLACK (-)  @ BCM, BROWN Plug, Pin B2, See NOTE #2
 PARKING LIGHTS ( + )  BROWN (+)  IN DRIVERS KICK PANEL
 POWER LOCK  See NOTE #1  
 POWER UNLOCK  See NOTE #1  
 DOOR TRIGGER  See NOTE #3  @ BCM, See NOTE #2
 DOMELIGHT SUPERVISION  GRAY/BLACK (-), (Requires #775 Relay)  @ DRIVERS DOOR MODULE in DOOR
 TRUNK RELEASE  N/A  
 SLIDING POWER DOOR  N/A  
 HORN  BLACK/YELLOW to BLACK (-)  @ BCM, GREY Plug, Pin B9, See NOTE #2
 TACH  WHITE (AC)  @ PCM, See NOTE #4
 WAIT TO START LIGHT  N/A  
 BRAKE  WHITE (+)  @ SWITCH ABOVE BRAKE PEDAL
 FACTORY ALARM DISARM   LIGHT GREEN (-)  @ DRIVERS DOOR MODULE in DRIVERS DOOR
 ANTI-THEFT  YELLOW (+), BLACK (-) and RED/WHITE (Not Used)  GM's PASSLOCK 2 System, these wires exit the Ignition Switch Tumbler together and are in the Main Ignition Switch Harness in the Column.
 EXTRA INFORMATION
 NOTE #1: This vehicle is equipped with GM'S PASSLOCK 2 ANTI-THEFT SYSTEM and Requires 791 Bypass Module for Remote starting if you are install a remote starter only, If you are installing a remote starter/keyless entry, you will need the XK09 INTERFACE BYPASS MODULE for the keyless entry and remote starting, to order go to the SECURITY BYPASS MODULE Page on this website. NOTE #2: the BCM is located UNDER the DRIVERS SIDE of the dash with (6) plugs, with the PURPLE plug on the back. NOTE #3: the DRIVERS DOOR wire is a GRAY/BLACK (-) at the DRIVERS DOOR Module in the DRIVERS DOOR and the PASSENGER DOOR is a BLACK/WHITE (-) a the PASSENGER DOOR Module in the PASSENGER DOOR. The DRIVERS SIDE REAR DOOR is a LIGHT BLUE/BLACK (-) Pin A3 and the PASSENGER SIDE REAR DOOR is a LIGHT GREEN/BLACK (-) Pin A2, both are at the PURPLE plug at the BCM, When connecting to an Alarm System use ALL 4 wires and DIODE ISOLATE. See DIAGRAM NOTE #4: the PCM is located at the LEFT front of the ENGINE COMPARTMENT to the LEFT of the FAN SHROUD. The TACH wire is in a GREEN Plug, Pin 10. NOTE #5: IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!