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Vehicle Wiring Details for your
2006-2008 Mercury Grand Marquis 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 2006-2008 Mercury Grand Marquis . 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   RED (+) and LIGHT GREEN/PURPLE (+)   @ IGNITION SWITCH HARNESS
 STARTER  DARK GREEN (+)  @ IGNITION SWITCH HARNESS
 STARTER 2  N/A  
 IGNITION 1  PURPLE/ORANGE (+)  @ IGNITION SWITCH HARNESS
 IGNITION 2  N/A  
 IGNITION 3  N/A  
 ACCESSORY/HEATER BLOWER 1  GRAY/YELLOW (+) and WHITE/BLUE (+)  @ IGNITION SWITCH HARNESS
 ACCESSORY/HEATER BLOWER 2  WHITE/PURPLE (+)  @ IGNITION SWITCH HARNESS
 KEYSENSE  BLACK/PINK ( + )  @IGNITION SWITCH HARNESS or LCM, 16-Pin Plug, Pin 10
 PARKING LIGHTS ( - )  WHITE/BLACK (-)  @ HEADLIGHT SWITCH or LCM, 16-Pin Plug, Pin 9, See NOTE #2
 PARKING LIGHTS ( + )  BROWN (+)  IN DRIVERS KICK PANEL or LCM, 13-Pin Plug, Pin 10, See NOTE #2
 POWER LOCK  PINK/YELLOW (TYPE A)  IN DRIVERS KICK PANEL at DOOR HARNESS
 POWER UNLOCK  PINK/LIGHT GREEN (TYPE A)  IN DRIVERS KICK PANEL at DOOR HARNESS
 DOOR TRIGGER  DARK BLUE (-) Drivers Door and BLACK/ORANGE (-) Passenger Door  See NOTE #3
 DOMELIGHT SUPERVISION  BLACK/LIGHT BLUE (+)  IN PASSENGER KICK PANEL or LCM, 13-Pin Plug, Pin 5, See NOTE #2
 TRUNK RELEASE  PINK/YELLOW (5-Wire), See DIAGRAM  IN DRIVERS KICK PANEL, HARNESS to REAR of Vehicle.
 SLIDING POWER DOOR  N/A  
 HORN  DARK BLUE (-)  @ HORN SWITCH or LCM, 12-Pin Plug, Pin 7, See NOTE #2
 TACH  ANY wire NOT RED or WHITE/RED (AC)  @ Any FUEL-INJECTOR or IGNITION COIL
 WAIT TO START LIGHT  N/A  
 BRAKE  LIGHT GREEN/RED (+)  @ SWITCH above BRAKE PEDAL
 FACTORY ALARM DISARM   DARK GREEN/PURPLE (-)  IN DRIVERS KICK PANEL or LCM, 12-Pin Plug, Pin 9, See NOTE #2
 ANTI-THEFT  FORD'S TRANSPONDER ANTI-THEFT SYSTEM, See NOTE #1  @ IGNITION SWITCH TUMBLER
 EXTRA INFORMATION
 NOTE #1: This vehicle is equipped with a Special Anti-theft key, to remote start you will need a Bypass module 791, use this module IF you have a extra ignition key to place inside the 791 to remote start, if you do not have an extra key to use or wish not to have a key placed inside this bypass module, we OFFER a KEYLESS INTERFACE BYPASS MODULE that does not require a key to be placed inside the bypass module, this is Part # PKALL or PKFM, either one will work, to order, go to the INTERFACE BYPASS MODULE PAGE on this website. NOTE #2: the LCM, (Lighting Control Module) is located to the RIGHT of the Steering Column. NOTE #3: the DRIVERS DOOR wire is at the DRIVERS DOOR MODULE in the DRIVERS DOOR, the PASSENGER DOOR wire is in the DRIVERS KICK PANEL, in the DOOR HARNESS. When connecting to an Alarm System, use both wires and DIODE ISOLATE, See DIAGRAM
 
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