Premieres on February 17 & 19, 2026, 7:00pm - 9:00pm CST each night.
On the day of the live stream, Zoom will send you an email reminder one hour before the live stream begins.
A few days after the live broadcast unlimited access to the video recording will be available at the Automotive Seminars website in the "My Video Library" section of your account. Login credentials will be emailed to you. If you already have an ASI account use your existing login.
--
Network communication problems can be solved quickly when you have a clear testing strategy.
This class will show how to diagnose high-speed CAN bus faults by combining scan tool information, wiring diagrams, and targeted testing strategies. Key benefits of this class include:
1. Repeatable approach to HS CAN bus diagnostics — Learn a process to determine if a network issue exists and where to begin testing.
2. Wiring diagrams as a diagnostic roadmap — See how diagnostic and conventional wiring diagrams guide your diagnostic approach & testing strategy for network issues.
3. Case study diagnostic examples — The examples in this class show how to use your scan tool, ohmmeter, voltmeter & scope to confidently isolate what caused network issues.
Topics:
• HS CAN Bus Testing Diagnostic Steps
• Conventional & Diagnostic Wiring Diagrams
• 2024 VW Tiguan 2.0L Example
• 2024 Toyota Grand Highlander Example
• Resistance Testing
• Voltage Testing & Voltage Guidelines
• 2019 Mitsubishi Eclipse HS CAN Bus Testing
• 2012 Toyota Camry HV HS CAN Bus Issue
• 2021 Kia Forte Intermittent HS CAN Bus Issue
• 2024 Toyota RAV4 ABS HS CAN Bus Issue
Instructor John Thornton
Class Length approx 2 hour
PDF Class Manual included, to be downloaded after logging in to watch the video.
Watch the Live Stream
Before the class, Zoom will send you three email reminders: one week, one day, and one hour before the live stream.
Watch On Demand
A few days after the live broadcast unlimited access to the video recording will be available at the Automotive Seminars website in the "My Video Library" section of your account. Login credentials will be emailed to you. If you already have an ASI account use your existing login.
Watch with Your Team
Included with registration, shop access for all your technicians so they can watch the live stream or recording at work or home.
