CAN Bus faults can quickly become confusing. Network diagrams, resistance measurements, CAN High and CAN Low waveforms, multiple modules and communication faults can make it difficult to know where to test next.
Over four weeks, Darren will help you build a logical CAN Bus diagnostic process that you can take back and use in the workshop.
By the end of the Master Class, you'll have a better understanding of how CAN Bus works and a logical process for diagnosing network faults with confidence.
Understand how CAN networks operate
Carry out resistance and voltage tests
Set up an oscilloscope for CAN testing
Analyse CAN High and CAN Low waveforms
Diagnose communication faults logically
Four weeks of structured training designed to build your knowledge step by step and turn it into a practical diagnostic process.
Understand how CAN Bus communication works, network structure, CAN High and CAN Low, termination and the essential principles behind CAN networks.
Learn how to approach resistance, voltage and oscilloscope testing, what good measurements should look like and how to recognise when something isn't right.
Work through CAN Bus faults and learn how to follow a logical diagnostic process instead of guessing or replacing parts unnecessarily.
Bring everything together with more advanced testing, waveform analysis and practical diagnostic examples.
Ready to improve your CAN Bus diagnostics?
Starts 11th October 2026 • Limited to 100 participants
Take part in the training, ask questions and continue learning between each weekly session.
One 2–3 hour live training session each week.
Ask questions and discuss the diagnostics during each session.
Stay connected with Darren and other Master Class participants throughout the four weeks.
Put what you're learning into practice between the live sessions.
Every session will be recorded so you can revisit the training whenever you need it.

Learn directly with Darren over four weeks as he breaks CAN Bus diagnostics down into practical testing methods and a logical diagnostic process you can use in the workshop.
Darren started as a BMW apprentice and spent 10 years on the workshop floor dealing with real diagnostic challenges. He later moved into technical training and led the Audi UK Master Technician programme, working with hundreds of experienced technicians.
That combination of workshop and training experience shaped Darren's approach to teaching diagnostics: take complex subjects, make them easier to understand, and give technicians a logical process they can confidently apply to real faults.
Being able to ask questions in real-time during the live sessions is invaluable. Darren doesn't just teach theory—he works through actual vehicle scenarios with us. The interactive format means I can apply what I learn directly to my workshop the next day.
Before Mechanic Mindset, I was outsourcing any electrical work I couldn't figure out. Now I tackle CAN Bus diagnostics with confidence. Darren has a gift for making complex topics accessible. My diagnostic accuracy has improved dramatically.

Every Master Class participant will receive a physical copy of our new CAN Bus Diagnostics Book to use alongside the training.
Follow along with the book during the Master Class, then keep it as a practical CAN Bus reference in the workshop afterwards.
Free shipping included worldwide
CAN Bus Diagnostics Book included
The programme progresses from fundamentals through to advanced CAN Bus diagnostics and is designed for automotive technicians wanting to improve their CAN Bus knowledge and diagnostic process.
The Master Class starts with the fundamentals before progressing into more advanced testing and diagnostics, making it accessible for those newer to CAN Bus technology.
This is intended to be interactive training with live Q&A, direct interaction with Darren and a private group, rather than a large one-way webinar.
Every session will be recorded and participants receive lifetime access to all recordings.
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