319: Module to Module Communication Faults
About this episode
Exploring complex module-to-module communication faults in vehicles, this episode dives into real-world diagnostic challenges involving network setups like CAN, LIN, and PCI buses. Sean shares detailed case studies including a Nissan Titan with an open CAN network, a Porsche 911 with LIN bus issues, and immobilization problems on a Subaru Legacy and Jeep Grand Cherokee. The discussion highlights the difficulty in pinpointing faulty modules when communication errors occur, the importance of understanding vehicle network architecture, and the value of using scopes for network analysis. Listeners gain insight into troubleshooting strategies for elusive communication faults affecting vehicle functionality.
We talk a lot about networking and communication faults on this show, but today's focus is when 2 modules share info between themselves and not the scan tool, but a problem exists within in that communication. How do we determine if it's a network, software, module, or input issue? Listen to get some tips and tricks from real cars that we've seen recently.
Website- https://autodiagpodcast.com/
Facebook Group- https://www.facebook.com/groups/223994012068320/
YouTube- https://www.youtube.com/@automotivediagnosticpodcas8832
Email- [email protected]
Please make sure to check out our sponsors!
SJ Auto Solutions- https://sjautosolutions.com/
Automotive Seminars- https://automotiveseminars.com/
Nissan Titan
"...erfect example of this was the other day on an 07 Nissan Titan. It was a it was immobilized."
Porsche 911
"... to go through these. First one is a 2012 Porsche 911. This one was setting codes in the airbag control..."
Jeep Grand
"..., we're still waiting on getting fixed, is a 2001 Jeep Grand Cherokee. Like these are not new vehicles either."
Request an Explanation
Heard something you'd like explained? We'll add it to this episode.
Sign in to request explanations for terms you heard.
Want to learn more?
Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.
Help improve this episode
See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.