Scratching my head on this, my flashers came on on their own, along with srs and airbag lights illuminating in dash. After turning car off and back on, srs light is off, hazard indicator is no longer active but now only some (abaiut half) exterior lights work. Driver low beam, passenger high (and driver low stays on when switching to high) right rear running light works, passenger side is out, no blinkers (although dash indicator lights up and clicks.. hazard indicator clicks with no external lights flashing.

After reading some other threads all fuses look and test good, I’ve put in a known good battery in, same issue, I don’t see any water ingress in BCM or battery box, but have swapped BCM with a spare, no change. All other functions work, and car runs and drives without issue. Anyone run across this before? Scan tool shows a slew of module communication failures, but so far I have yet to locate a break anywhere on the kbus. Thoughts?

 

And fixed… driver side rear brake light harness had been partially pinched by the housing somwtime in the past and it rubbed through insulation, and fl12 fuse was in a partially corroded socket. Love how everything is tied together now on cars!

 

105 views and "crickets"
Glad you were able to figure it out yourself

' gotta love a happy ending