CAN Bus Troubleshooting Guide

Our CAN bus troubleshooting guide has helped thousands of engineers and technicians diagnose and resolve CAN bus faults — whether automotive or industrial.
Covers termination resistance, CAN HIGH & LOW voltage levels, and node transceiver checks. Now available as an interactive diagnostic tool that walks you through fault isolation step by step.
What’s in the CAN Bus Troubleshooting Guide
- Guided multimeter placement for bus diagnostics
- CAN bus termination resistance check & troubleshooting steps
- CAN bus voltage check & troubleshooting steps
- ECU transceiver test with expected impedance values
- CAN Node isolation technique for faulty transceiver identification
- Interactive diagnostic flowchart — answers narrow the diagnosis in real time
- Printable PDF reference included
