Mine comes on during the startup procedure and then going out when it fires up an then comes back on about a block away. I have not looked at the codes lately but it is on my Winter List to make a permanent dashboard access to the ecu on or right under the dash, like in that offside cigarettle lighter hole. I made a plug for that hole for a switch (since relocated it) so adapting something there should be eay.
2019 M3W Sold and is now in Las Vegas enjoying the showgirls :-)
