Diagnostic Scan Tool Essentials - One Day (£200 per delegate)

Topics

Introduction to Diagnostic Scan Tools: Purpose and role in modern automotive diagnostics - Types of scan tools - code readers vs. advanced diagnostic tools - OEM vs. aftermarket tools -Safety considerations when using scan tools
Vehicle Communication Protocols:  Overview of OBD-I, OBD-II, and enhanced diagnostics - Common communication protocols (CAN, ISO 9141, J1850, LIN) - How scan tools interface with vehicle ECUs
Diagnostic Trouble Codes (DTCs) and System Information: DTC types: Generic vs. Manufacturer-specific - Code structure and interpretation (P, B, C, U codes) - Freeze Frame data and when to use it - Clearing codes and the effects
Live Data and Parameter Monitoring: Understanding and filtering PID data - Identifying normal vs abnormal readings - Customising data views for faster analysis -Graphing and comparing sensor values
Mode 6 and Emissions Readiness:  Explanation of OBD Mode 6 test results - Interpreting component-level test data - Readiness monitors and I/M testing basics 
Bi-Directional Controls and Special Functions:  Introduction to actuator and system tests - Common functions: EVAP test, fuel pump, idle relearn, ABS bleed - Risks and precautions when using active tests 
Hands-On Diagnostic Exercises: Real-world fault simulation and diagnosis - Scan tool setup and navigation - Interpreting data to identify root causes - Team-based or individual diagnostic challenge

Course Summary

Building on foundational knowledge of vehicle diagnostics, Diagnostic Scan Tool Essentials equips technicians with the practical skills and theoretical understanding required to effectively operate and interpret modern automotive scan tools across a wide range of vehicle systems.
Delegates will gain hands-on experience in scan tool navigation, establishing communication with vehicle control modules, and accurately interpreting diagnostic trouble codes (DTCs), live data parameters, and freeze frame data. Key functions such as emission readiness tests, Mode 6 diagnostics, and communication protocol identification will also be explored in depth.
Advanced features including bi-directional control tests, special functions (such as idle relearn, EVAP tests, and ABS service routines), and data stream customisation will be covered, enabling participants to carry out more efficient diagnostics and enhance fault-finding precision. Practical sessions reinforce key skills, ensuring attendees can confidently apply scan tool functions in real-world diagnostic environments.
The course is designed for automotive technicians, apprentices, and workshop professionals aiming to build diagnostic efficiency and accuracy using industry-standard scan tools. Diagnostic Scan Tool Essentials provides essential techniques for mastering electronic system diagnosis and reducing time to repair.
​On completion, you will receive a certificate of attendance which can be used towards Continuing Professional Development (CPD) credits.

All courses designed and taught exclusively by Graham Stoakes AAE MIMI MSET QTLS

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Requirements

There are no formal entry requirements for this course, however, you should currently be working in the automotive industry as a vehicle technician or similar. The attendance of the Automotive Electrical Testing & Diagnosis course prior to undertaking this training will reinforce concepts used in scan tool operation.

This course is recommended for progression onto further diagnostic training.
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This course is a mixture of theory and practical and will require suitable clothing for conducting workshop activities. ​Safety boots are required for all technical work shop based activities. You will be unable to participate in the course if you do not wear the appropriate PPE.

We reserve the right to exclude a candidate who we suspect is under the influence of alcohol or drugs (the candidate may also need to make alternative arrangements for onward journeys).