CAN Bus Properties and Troubleshooting HD

Additional troubleshooting tips and resources here: https://support.enovationcontrols.com/hc/en-us/articles/360038856494-CAN-BUS-Properties-Troubleshooting-Guide Note: For in-depth detail about the physical layer and termination resistors, we recommend you read Application Report (SLLA270) from Texas Instruments: http://www.ti.com/lit/an/slla270/slla270.pdf Chapters 00:00 Introduction 00:23 What is a CAN Data Bus? 01:00 Components of a Physical CAN Data Bus 01:44 CAN Bus Topology 02:38 CAN Bus Electrical Characteristics 03:07 Oscilloscope View of CAN Bus 04:35 Measuring a CAN Bus with a Multimeter 06:34 The Importance of Termination Resistors 08:16 Troubleshooting Step 1: Verifying Termination Resistors 10:23 Troubleshooting Step 2: CAN Hi & Low Wired Backwards 11:59 Troubleshooting Step 3: CAN Signal Missing 12:54 Troubleshooting Step 4: CAN Signal Shorted 17:54 Conclusion