Rangefinder I2C Setup

Hello,

according to Benewake Landingpage the tfminiplus can be setup by using IC2.

According to that post: How to make the TFMINI rangefinder talk I2C there is a workaround necessary for setting up the tfmini via IC2.

i tried only the first option and it is not working. Am i doing something stupid here?

The pinout of IC2 from the Pixhawk 2.1 is of course SDA and SDL and the tfmini version is RX and TX. Is there perhaps a cable on the market for the 4 pin IC2 to telem, so that i can plug the cable directly into the telemetry port?

kind regards