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

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=145804
Printed Date: May 06, 2025 at 6:15 AM


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

Posted By: chem.eng
Subject: Viper 4706V, 2005 BMW X3, Proper Tachometer Engine Checking Mode?
Date Posted: November 24, 2019 at 11:53 PM

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.



Replies:

Posted By: geepherder
Date Posted: November 26, 2019 at 7:17 AM
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).

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


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