Viper 7900 Owner Manual - Page 46

code hopping

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alarm Zone 1 remote con‑ trol icon led flashes 1 Sensor or vehicle circuit Trunk switch optional connection 2 2 Shock sensor 3 3 Door switch 4 4 Optional sensor 5 5 Ignition switch 6 6 Hood switch code hopping The receiver and remote controls use a math­e­mat­i­cal formula called an algorithm to change their code each time the remote control 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 remote control "in sync" with the control unit even if you use the remote control out of range of the vehicle. How­ev­er, if the remote has been pressed many times out of range of the vehicle, 42 © 2006 directed electronics-all rights reserved

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µ³
© 2006 directed electronics—all rights reserved
alarm±
Zone
remote±con‑
trol±icon
led±
flashes
Sensor±or±
vehicle±circuit
optional±
connection
1
1
Trunk±switch
2
2
Shock±sensor
3
3
Door±switch
4
4
Optional±
sensor
5
5
Ignition±switch
6
6
Hood±switch
code hopping
The receiver and remote controls use a mathematical formula called
an algorithm to change their code each time the remote control 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 remote control “in sync” with the control unit even
if you use the remote control out of range of the vehicle. However, if
the remote has been pressed many times out of range of the vehicle,