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In this Technical Focus Article, learn about how U-codes identify communication faults between vehicle control modules, typically caused by wiring, DLC pin, or scan tool adapter issues. Proper diagnosis is key to resolving U-code errors and ensuring accurate automotive communication system repairs.
In this Technical Focus Article, you'll learn how using a lab scope alongside a scanner gives techs deeper, real-time insight for more accurate diagnostics that reveal intermittent faults hidden in OEM-specific systems.
In this Technical Focus Article, learn about the main components of Variable Valve Timing, the functions & benefits, VVT history, and common causes of VVT malfunction. We include a case study on a 2004 Honda Accord® EX 2.4L as well!
In this technical focus article, we explore the evolution of vehicle steering systems, from early mechanical designs to today’s electric power steering (EPS) technology. Understanding these systems is crucial for modern technicians using Snap-on® car diagnostic tools. Learn about the five types of vehicle steering systems in detail: Worm and sector, recirculating ball, rack and pinion, hydraulic power steering, and electric power steering.
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Most vehicles need a scan tool to perform even the simplest of maintenance functions like: oil reminder resets, placing the parking brake into service mode, battery resets and TPMS resets, to name a few.
In this Technical Focus article, we will look at how a scan tool is an integral part of the process to ensure you can remain productive in the bay.
Learn how to diagnose cam and crank sensors. Understand Hall‑Effect, inductive and magneto‑resistive sensors, and improve diagnostic accuracy with Fast-Track Guided Component Tests.
In this Technical Focus Article, learn how to understand and diagnose Diesel Particulate Filter (DPF) systems in modern diesel vehicles. Explore DPF history, regeneration strategies, diagnostic procedures, and the impact of SCR and AdBlue® systems. Proper diagnosis and sensor validation are key to safe regenerations, preventing costly repairs, and maintaining emissions compliance.