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©
1999 Directed Electronics, Inc.
Code-Hopping
™
The receiver and transmitters each use a mathematical formula
called an algorithm to change their code each time the transmit-
ter is used. This technology has been developed to increase the
security of the unit. The control unit knows what the next codes
should be. This helps to keep the transmitter synchronized with
the control unit even if you use the remote control out of range
of the vehicle. However, if the transmitter has been pressed many
times out of range of the vehicle, or the battery has been
removed, it may get out of sync with the control unit and fail to
operate the system. To resynchronize the remote control simply
press the arm/disarm button of the remote control several times
within range of the vehicle. The alarm will automatically resyn-
chronize and respond to the transmitters normally.
Programming Options
Programming options control what your system does during nor-
mal operation, and require little or no additional parts. However,
some may require additional installation labor. The factory set-
tings are in bold.
■ Active arming (only with the transmitter) or passive arming
(automatic arming 30 seconds after the last door is closed).