OBD2 Bluetooth adapter causing no start when plugged in.

[PoppyJL1206]

I tried to plug my OBDLink MX+ into the port and it would not let my vehicle start.
Also caused the check engine light to come on.
Vehicle did start after I unplugged. Just curious as to what I might have done wrong.
I have a 2019 JLU sport.

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[Rhinebeck01]

I tried to plug my OBDLink MX+ into the port and it would not let my vehicle start.
Also caused the check engine light to come on.
Vehicle did start after I unplugged. Just curious as to what I might have done wrong.
I have a 2019 JLU sport.

BEFORE you jumped into the fire so to speak, did you...

...Did you follow the instructions here...
https://manuals.plus/obdlink/obdlink-mx-manual#axzz7hSkTW2gH

Not sure what you have done or not done... and/or what you are wanting to do.

You will need to provide lots more info if you want answers..

By the way, it is important that you update the firmware on your OBDLink MX+ , to version 5.7.1 .
Read here: https://www.jlwranglerforums.com/forum/threads/update-your-bluetooth-obd2-scanner-firmware-updates-important.97511