I have a 2014 Fleet Discovery 40E with an Cummins ISL9. I noticed my check engine light on yesterday and today I found these fault codes listed on the dash display.

I researched these codes and found that they are, 191 "Transmission output shaft speed received. Network data in error." & 84 "Wheel based vehicle speed. Abnormal update rate.." I was surprised to see the number of times they are listed together.

I am wondering if the issue I had last week caused this issue. During the drive between RV Parks I had the drivers side rear airbag fail. It went totally flat during the trip. The roads were very rough and I did not detect the flat airbag right away. I replaced the airbag while at the park so that is OK now.

Could the pounding that corner the rig received caused a connection failure? Where are the connection(s) to check or should I take it to a repair facility?