Tachometer Settings; Virtual Tach - Viper 5901 Installation Manual

Alarm trigger inputs shorter than 0.8 seconds trigger the WarnAway response,
while inputs longer than 0.8 seconds triggers the Full Alarm sequence.
Note: You need to add a 4-pin plug to interface with any hardwired switches

Tachometer settings

➢ Virtual tach

To program Virtual Tach:
1. After the install is complete, remote start the car.
2. If the car does not start on the first attempt, let the remote start attempt
again.
3. Once the car starts, let it run until the parking lights come on.
4. When the parking lights come on, shut off the remote start with the remote
- that's it! Virtual Tach is programmed.
To reset Virtual Tach, go into the remote programming grid and choose option
#4. Virtual Tach cannot be reset with the Bitwriter.
Note:
Virtual Tach cannot be used in MTS Manual Transmission Mode.
Virtual Tach handles disengaging the starter motor during remote starting – it
does not address over-rev. If the customer wants to have the over-rev protection
capability, the tach wire must be connected. This may involve more installation
shop charges than initially quoted.
Important: If the Virtual Tach mode over cranks or doesn't
crank the vehicle long enough to start and run the car, use the
Bitwriter to add or subtract the starter output time. You can
adjust the output time in increments of 50mSec of the learned
time using the Bitwriter.
© 2008 Directed Electronics. All rights reserved.
29