Tach Learning; Virtual Tach - Directed Electronics 4103, 4-button series Installation Manual

Tach Learning

To learn the tach signal:
1. Start the vehicle with the key.
2. Within 5 seconds, press and hold the Valet (Control) button.
3. After 3 seconds the system LED will light constant when the tach signal is learned.
4. Release the Valet (Control) button.
Important: This unit can learn the tachometer with the analog
input or through D2D using an interface module. The unit con-
firms which source is used.
When programming tach learning with:
Analog, the parking lights flash one time
•
• D2D inerface module, the parking lights flash twice
If the tachometer input on the system is connected to the vehicle, the D2D tachometer input will be ignored.

Virtual Tach

Note: Virtual tach is not recommended for diesel vehicles.
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 pro-
grammed.
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.
© 2012 Directed. All rights reserved.
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 incre-
ments of 50msec of the learned time using the Bitwriter.
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