Because of Visual placement limitations of the XT2000 in certain vehicles our Company is developing an OBD-2 T-Harness for hardware concealment. I need to verify the minimum wires and pin configuration to make the XT2000 operational. Because of our previous experience with a similar harness for another product ...... I know that the two most important specs are pin #5 for -12V ground; and pin #16 for +12V positive . I currently have a XT2000 working properly by adding two additional wires for pin #2 for data and pin #4 for data.

Does the XT2000 use both data inputs or can I get by just using #4 (or #2) ? How does the XT2000 determine “engine on” & “engine Off” since there is NO Ignition voltage high/low at this 4 wire OBD-2 configuration?

I have developed 3 different type of OBD-2 auxiliary harnesses for your product. Will post all three specs when wires are verified. Any help would be appreciated.

All populated pins of the Xirgo OBD device are used by various OBD protocols, not all at the same time depending on the vehicle make/model.
When you build your cable, note the length of the Ground pins and follow this convention.

Looking at the connector end of the device…

Engine on/off is determined by several parameters, all info acquired from the OBD port itself.

did you get this done eventually ? can you post pictures ?

I had a question regarding the obd pinout…  and I wanted to verify what is mentioned above….

How are the “engine on” and “engine off” readings determined on the Xirgo OBD devices?

If theY are reading a high and a low to determine, are they using pins 6 for high and 14 for low?

Xirgo has not released the exact algorithm used to determine engine on and engine off, but it is based on OBD parameters like engine RPM and alternator voltage.

So, are you saying that I am using the right pins, but just not getting the correct data from them?

I wanted to make sure that I didn’t just need to switch to different pins to pull the data.

Thanks Byron