1998 740il obd2 not working

[SMOKINP]

I took it to the emission place and it failed the tester said that the OBD2 would not communicate. the scanner has power but doesn't connect with the vehicle I check the fuses in the trunk and under the hood made sure the cap was on under the hood for the test port. Can anyone give me some ideas as to what I need to do or check Thanks

[Pelican Parts]

Hello and welcome to the forum! I'm attaching a link to an earlier thread where this is discussed.

https://www.bimmerforums.com/forum/s...ection-Problem

[shogun]

and I will move the thread to the E38 forum