Viper 4706V, 2005 BMW X3, Proper Tachometer Engine Checking Mode?

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chem.eng

Member - Posts: 10

Joined: August 20, 2017

Posted: November 24, 2019 at 11:53 PM / IP Logged

I have installed a Viper 4706V into my 2005 BMW X3. The remote start works, but I want to confirm what setting I should be using for the tachometer input. The tachometer input wire of the remote start is attached to the data link connector (OBD2 connector) pin 9 (black wire). This black wire puts out an ac signal.

The Viper 4706V has four "Engine Checking Mode" options to pick from-

Option 1: Virtual Tach (Default Setting)

Option 2: Voltage

Option 3: Off

Option 4: Tachometer

Currently, I have it set to option 1 (virtual tach) and it is working fine. Can someone confirm if this is the correct setting I should be using?

Thank you for any help.

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geepherder

Platinum - Posts: 3,668

This member consistently provides reliable information

Joined: October 27, 2003

Posted: November 26, 2019 at 7:17 AM / IP Logged

Hopefully someone will correct me if I'm wrong, but I believe if you have a tach wire connected, the unit automatically switches to tachometer mode regardless which option is selected in the menu.

https://www.directeddealers.com/manuals/IG/Python/N4X06%202015-12%20web.pdf

When you learned the tach, did it just take a second? If so, you're in tachometer mode (option 4).

My ex once told me I have a perfect face for radio.

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