CAN clues

James Dillon launches comprehensive guide to CAN Bus diagnostics

Published:  30 July, 2008

TECHNICAL writer James Dillon has released a comprehensive guide to CAN Bus, to help technicians develop their understanding of diagnostics.

How do you identify a CAN-enabled vehicle?

What fault would be indicated by a resistance of 0.6 ohms between CAN high and Can low, and what symptoms would be shown?

What voltage difference should you expect to see if the CAN is OK?

What should you do differently to accurately diagnose CAN vehicles?

How should the multi-meter or oscilloscope be setup to diagnose the high speed CAN?

Why do CAN vehicles have several different networks?

What is a CAN Gateway and how do you test it?

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