234: B1497 2013 Toyota Sienna HVAC Communication Fault

This week on the show I share a case study on a 2013 Toyota Sienna that has issues with the HVAC system doors not moving to the correct positions. The shop has replaced almost all of the components with no change in symptoms! What I find to be the cause is rather interesting and something I've never run into before! Website- https://autodiagpodcast.com/ Facebook Group- https://www.facebook.com/groups/223994012068320/ YouTube- https://www.youtube.com/@automotivediagnosticpodcas8832 Email- STmobilediag@gmail.com Please make sure to check out our sponsors! SJ Auto Solutions- https://sjautosolutions.com/ Automotive Seminars- https://automotiveseminars.com/ Jarhead Diagnostics- https://www.jarheaddiag.com/ L1 Automotive Training- https://www.l1training.com/ Autorescue tools- https://autorescuetools.com/