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8 © 2003 Directed Electronics, Inc. Vista, CA
If the optional Failsafe
®
Starter Kill Relay (not included with this unit) or its connections are immediately visible
upon removal of the underdash panel, they can easily be bypassed by a thief. Always make the relay and its con-
nections difficult to discern from the factory wiring! Exposed yellow butt connectors do not look like factory parts,
and will not fool anyone! For this reason, routing starter kill wires away from the steering column is recommended.
finding the wires you need
Now that you have decided where each component will be located, you’re going to find the vehicle wires that
the security system will be connected to.
IMPORTANT! Do not use a 12V test light to find these wires! All testing described in this manual
should be performed with a digital multimeter.
We recommend two possible sources for 12V constant: The (+) terminal of the battery, or the constant supply to
the ignition switch. Always install a fuse within 12 inches of this connection.
IMPORTANT! Do not remove the fuse holder on the red (H1/11) wire. It ensures that the control
module has its own fuse, of the proper value, regardless of how many accessories are added to the
main power feed.
The ignition wire is powered when the key is in the run or start position. This is because the ignition wire powers
the ignition system (spark plugs, coil) as well as the fuel delivery system (fuel pump, fuel injection computer).
Accessory wires, on the other hand, lose power when the key is in the start position to make more current avail-
able to the starter motor.
finding the 12V switched ignition wire
obtaining constant 12V
optional starter kill relay