Crime Guard 250i6 Owner's Manual page 18

and/or trunk area of a vehicle. If the security system is armed, grounding the Blue
will activate it.
CONNECTION: The included pin switches may be installed to provide this trigger
circuit. Or, if there are existing switches, the Blue wire may be connected directly,
provided this is a- Ground switching circuit. An indication of such a circuit is the
wire having no voltage present when the hood or trunk is open, and up to +12 Volts
when the hood or trunk is closed. This circuit cannot be used with mercury switch
types of hood or trunk lights. If the vehicle is equipped with a usable hood or
Diode-Isolating multiple - Ground instant triggers.
Control Trunk
Light
Module / Siren
Assembly
Blue - Ground Instant Trigger Wire.
Installation Insert Page 6
Other Optional
- Switching
Trunk
Hood
Trigger
Pin
Pin
Connections
Switch
Switch
Note: Use "IN4002" diodes.
trunk circuit, the Blue wire may be spliced directly to the vehicle's wire.
IMPORTANT: When wiring more than one of the vehicle's circuits and/or addi-
tional circuits to this wire, diode-isolation is usually required to maintain each
circuit's proper operation (diodes are available at most electronics stores). An
example would be wiring a hood pin switch and trunk light switch together. Without
isolating, the trunk light will illuminate whenever the hood is raised, and vice versa.
If the vehicle has a "- Ground" switching dome light system, the Blue wire can also
be connected this circuit, but if any other circuits are connected (i.e.- hood pin
switch and/or trunk pin switch, diode isolation will be necessary.
White Wires - (+12 Volts Flashing Light Outputs): While not necessary for the
Crime Guard 250i6's basic operation, these wires greatly enhance the system's
operation, are usually very easy to connect. These are +12 Volts outputs for
exterior flashing light confirmation, and to attract attention to the vehicle if the
security system is activated. Although two White wires are supplied, in most
cases both of these wires are connected to a single wire in the vehicle. The
exception will be certain vehicles, primarily of European manufacture, which have
the left and right parking lights as separate circuits. In these cases, one White
wire will be connected to each circuit, thus maintaining them as separate circuits.
CONNECTION: If the vehicle has a single parking light wire, connect both of
these wires to the vehicle's parking light circuit. As the 250i6 is mounted
Installation Insert Page 7