Specifications

Viper Installation and Operators Manual 2.08
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3. Drive the vehicle a distance of one mile (or one kilometer if using metric
units).
Important: Do not use the odometer on the vehicle to
determine the distance. Use either section lines or highway
markers to ensure that you have driven the correct distance.
4. Read the distance value displayed in the Feet field. This value should be
5280 if you drove the vehicle exactly one mile.
If the value displayed in the Feet field is between 5260 and 5300, the Speed
Cal number entered is correct. If the distance displays a value that is out-
side the above range, perform the following calculation to determine the
speed calibration:
D = Viper Distance (odometer)
OSC = Old Speed Cal
CSC = Corrected Speed Cal
CSC = (OSC x 5280)/D
For example (in English Units):
D = 5000
OSC = 598
631.48 = (598 x 5280)/5000
CSC = 631
Therefore, the Corrected Speed Cal equals 631.
For example (in Metric units):
D = 980
OSC = 152
155 = (152 x 1000)/980
CSC = 155
Therefore, the Corrected Speed Cal equals 155.
5. Enter 631 (for English units) or 155 (for Metric units) for the Speed Cal.
6. Confirm that the new Speed Cal is correct by repeating steps 2 through 4
above.