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© 2006 Directed Electronics
step 6
Door Locks
The system comes with a built in relay pack for door lock oper-
ation. When attempting to interface the power door locks with
your system it is important to understand that there are multiple
types of door locking systems in today's vehicles. To determine
your vehicle’s power door lock system, check the web information
on your vehicle.
If your door lock system is a different type than described in this
guide, go to www.designtech-intl.com (On-Line Tech Support,
Tech Tips) to download the door lock systems guide. This guide
identifies the type of system for your vehicle. With the built in door
lock relays you can properly interface the power locks with your
keyless entry/remote start system. If you are unable to identify your
door lock system with the web information please contact Directed
Technical Support.
Although there are numerous types of door lock circuits, the
most common is the negative triggered door lock system (Type
B). If your vehicle has a negative triggered door lock system,
follow the steps below. If your vehicle has any other type of door
lock system then, the easiest way to determine which type of
door lock system you are working with is to remove the master
locking switch itself, which is usually on the driver’s door or on
the center console. Once you have determined which type of
factory door lock circuit you are working with, and the color
codes of the switch wires to be used, you can usually simplify the
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