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Directed Digital System MIT4
© 2015 Directed. All rights reserved.
Learning the Tach (not needed with Virtual Tach)
Tach comes preprogrammed, therefore learning is not required; however, it can be readjusted with the following
operations:
1. Start the vehicle using the key.
2. Within 5 seconds, press and hold the Control Center* (antenna) or the main module programming button,
until the LED on the Control Center (antenna) or the main module turns ON soild.
3. Release the button. Tachometer value is now stored in memory.
If the LED does not turn ON solid, find an alternate tach source.
* If the Control Center (antenna) was not included in your kit, the tach can be programmed using the
programming button directly on the main module.
Note
: When the tachometer is programmed, the main module automatically enters the Tachometer engine
checking mode.
Initializing Virtual Tach (not needed with hardwired or data tach applications)
To program Virtual Tach:
1. After the install is complete, remote start the engine. The programming operation may require 3 cranks of
the starter before the engine starts and runs. Do not turn off the remote start if this happens, it is a normal
programming operation.
2. Once the engine begins running, let it run for at least 30 seconds.
3. Using the Remote, send the Remote start command to turn remote start off. Virtual Tach is programmed. To
reset Virtual Tach, a module reset must be done.
Note
: Virtual Tach cannot be used in Manual Transmission Mode. It is also not recommended for diesel trucks.
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 or data tach must be used.
Important!
After successfully learning Virtual Tach, a small minority of vehicle starters may over crank or under
crank during remote start. Use the VirtualTach Fine tune feature in the configuration wizard to adjust the starter
output time in 50mS increments to compensate for such an occurrence.
