Blue Wire (Negative Instant Trigger) - Crime Guard 328i2 Installation Manual

BLUE WIRE - (Negative Instant Trigger): The function of the Blue wire
is to supply the system with a (-)negative ground signal from a hood or
trunk pin-switch/light circuit only when the hood or trunk is open, or from
an additional sensor. The Blue wire circuit is an instant trigger zone that
will trigger the system if it becomes grounded while the system is armed.
Connect the Blue wire to a factory installed or aftermarket hood and/or
trunk (-)pin-switch/light circuit. The Blue wire may also be connected to an
additional sensor as well.
-The (-)negative ground type pin-switch/light circuit will show ground
Only when the vehicle hood and/or trunk is open. A factory installed hood/
trunk light circuit may possibly also show up to (+)12 volts when the hood
and/or trunk is closed. The correct wire will show this change when the
hood and/or trunk is opened & closed.
Note: The "Last Door Arming" process will not begin until the Blue wire is
ungrounded. If the Blue wire becomes grounded during the "Last Door
Arming" process, the countdown will stop and reset when the Blue wire is
ungrounded. The system's open zone bypass feature will allow the system
to be actively Armed using the transmitter while the Blue wire is grounded
and will start protecting the Blue wire circuit 5 seconds after it becomes
ungrounded.
Diode-Isolating Multiple Negative Instant Triggers.
Trunk
Light
Control
Unit
Note: Use IN4002 Diodes, Which May Be Found At Most Electronics Stores.
Trunk
Pin
Switch
Blue (-) Instant Trigger Wire.
Hood
Pin
Switch
11
Optional
Electronic
Sensor