The Why & how of Diagnosing CAN Bus - Part 1

CAN faults can waste hours when you are chasing symptoms that look unrelated. In this two-part webinar, veteran trainer Jack Stepanian walks through how CAN networks are built, what “normal” looks like, and a practical process for proving where a network problem lives. Expect clear explanations of topology, termination and common failure modes, then a diagnostic workflow using scan data, network DTCs and scope checks to isolate the cause. Built for everyday workshop diagnosis, from quick checks through to confident fault location.

• CAN basics and terminology
• Network layout and topology
• Termination and resistance checks
• What normal signals look
• Recognising network-down symptoms