Disarm Testing - Directed DIRECTECHS DB3 Installation Manual

Disarm testing

It is important to read through all the steps before proceeding.
Note: This testing is to be done if you want to use the DB3 to disarm the factory alarm on unlock and trunk release. This install
type can only be done on low current ignition switch and on vehicles that do not disarm using the key to unlock the driver's door. If
using a one-button system or door locks are not being connected, the disarm will automatically be done upon remote start.
Position the key next to the ignition barrel in a way that you can free your hands, and have
1
a few jumpers ready for the next steps.
2
Arm the factory alarm on your vehicle.
3
Trigger the factory alarm by opening a door.
You must now try to power up the ignition, accessory and keysense wires with jumpers in order to determine what is
required to disarm the system. It can be a combination of two wires.
4
Note: The key must be near
Common scenarios include Ignition only, Ignition + Accessory or Ignition + Keysense, but may differ.
When you have found what combination works to disarm the system, refer to the
5
installation wiring diagram to make the proper connections to the DB3 module.
14
403.FORD1 4.22 2005 Mercury Grand Marquis
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(but not inserted into) the ignition barrel during the entire length of the testing.
Key OUT Key IN
START
Key OUT Key IN
START
Key Near the Ignition Barrel
Arm Factory Alarm
Open Door to
Trigger alarm
Connect to DB3