Technical Focus

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Fuel Pump Current Ramp Test

Find out about a quick and easy way to help diagnose fuel pump issues by using your Snap-on lab scope and diagnostic software to generate readings for analysis.

Diagnosing Vehicle Communication Issues

Learn about a quick and easy way to test a vehicle's communication network and get to the bottom of no-communication problems efficiently.

Deal With ADAS Work

See how working on ADAS systems is made easier with the innovative and unique combination of garage equipment and vehicle diagnostics from Snap-on.

Hybrid Vehicle Battery Technology

Learn some important information and safety tips to be aware of when you are working on the different types of batteries used by hybrid vehicles.

Speed Up Your Diagnostics

Take advice from industry experts at Snap-on and work smarter from connection to completion – because time means money and we’d all like more of both.

Selective Catalytic Reduction

Take a look into some issues you need to be aware of when it comes to dealing with selective catalytic reduction systems, AdBlue and NOx in vehicle emissions.

Testing a Fuel Injector Using an Oscilloscope

See how a Snap-on lab scope and diagnostic software can help you check voltage and amperage to guide you to a diagnosis when working on a faulty fuel injector.

Top Level Menus

Not sure how to do a particular test with your lab scope? Did you know there are built-in training classes in a Snap-on lab scope? This article tells you more.

Electronic Throttle Control System Diagnostics

Read on to see how you can check data and test that the electronic throttle control system is performing normally – and how you can tell if there is an issue.

Go Further With Your Diagnostic Routine

Learn from industry experts at Snap-on about how having a solid diagnostic routine will help you be more efficient each time you face a troublesome vehicle.

What Is NOx?

Read on to improve your knowledge of nitrogen oxides from diesel emissions and how to deal with them.

BMW Rain Sensor Calibration

Learn how the car diagnostic tool software from Snap-on can help you quickly and easily reset and re-calibrate sensors when completing a vehicle repair.

CAN Network Diagnostics

See how a Snap-on car diagnostic tool can help you diagnose communication problems on a vehicle in a clear and straightforward fashion.

Ignition Current and Voltage Comparison

Having a hard time determining if an ignition coil is faulty? A quick test on your Snap-on diagnostic tool lets you compare the voltage and current of a coil.

VW-Audi Flexible Service Reset

Learn how to use your Snap-on car diagnostic tool to clear a service light on a VW or Audi vehicle and reset the service schedule.

PID (Parameter Identification) Trigger Function

Read on to learn how a Snap-on car diagnostic tool gives a simple way for you to monitor vehicle data when you are carrying out a road test as part of a repair.

Alternator Ripple Test

Read on to find out how this simple procedure within Snap-on's diagnostic platforms is a great starting point for your diagnostic process.

Locking Down The Problem

Learn how to go about diagnosing a fault in a car door that won't open, using a Snap-on diagnostic platform and lab scope to help you to the answer.

Audi TT Stalling in the Rain

Find out how Snap-on diagnostic platforms helped overcome the winter weather when dealing with an Audi TT that kept stalling in the rain.

VW Golf Real Fix

See the steps that located, diagnosed and repaired a problem with a Volkswagen Golf's power windows, locks and mirrors.

Ford Focus DPF Sensor Issue

Read how a fault in a Ford Focus's diesel particulate filter sensor was diagnosed, repaired and verified using a diagnostic platform from Snap-on.

Your Daily Diagnostics

This Technical Focus article explores the evolution of vehicle diagnostics and ponders how long it will be before every technician needs a diagnostic platform.

Get On The Right Track

Find out how the exclusive SureTrack system from Snap-on helped provide answers when a Mini with an engine fault arrived at a workshop.

Mutual Induction

Learn more about mutual induction technology and discover some helpful points to consider when working on a fix in your workshop.

Steering Angle Sensor Reset

Read why it's important to make sure all checks are done in order to complete repairs and clear any diagnostic fault codes from a vehicle.

Promote The Benefits Of 3D Wheel Alignment

Find out how a 3D four wheel alignment system from Snap-on can help you show the benefits to your customers of them having their wheels aligned.

Diagnosing Air Conditioning Systems

Take a look at some important steps you need to know when it comes to diagnosing car air conditioning issues, with the help of a Snap-on diagnostic expert.

Fixing A Corrupt CAN Network

A 2011 Peugeot 207 with a 1.4l common rail diesel engine wouldn't start. There was no voltage at terminal 50 of the starter motor when the ignition was turned.

Coding Parts To Complete The Repair

A 2008 BMW E90 with a 2.0L spark ignition engine has been suffering from occasional rough running when starting and the engine management light is illuminating.

Five Top Tips For Fault-Finding - Tip 5

You should rely on your knowledge of fundamental electrical principles when fault-finding an electronic sub-system.

Five Top Tips For Fault-Finding - Tip 4

With the implementation of Euro VI emissions standards, manufacturers are fitting additional hardware such as Pressure Sensing Glow-plugs (PSG) to monitor in cylinder pressure to accurately diagnose combustion anomalies.

Five Top Tips For Fault-Finding - Tip 3

Prior to starting a repair, you should research all relevant data relating to the task. An example of this is investigating which special functions and procedures need to be executed after a repair is carried out.

Five Top Tips For Fault-Finding - Tip 2

Although voltage testing is valid for circuit and wiring test, monitoring a current flow trace is the most accurate way of testing a component.

Five Top Tips For Fault-Finding - Tip 1

Modern vehicles can sometimes appear to be complex but troubleshooting most problems can be reduced down to applying simple logic to a specific circuit.

Audi Real Fix

A 2008 Audi A6 2.0L PD compression ignition engine with engine code BRD had an intermittent no-start condition when the engine was up to operating temperature.

Motor Control

The polarity of a motor is reversible, allowing for accurate control of the system. One way to control the polarity is by designing an “H-drive” bridge circuit.

A Look At Electronic Throttle Control

Electronic throttle control has now become a standard fitment in all spark ignition engines. This has allowed for advances in technology such as cruise control, traction control, limited operating strategy (limp home mode) and engine speed limiter.

How You Can Benefit From AC Servicing

The summer season is when air conditioning is at its most popular so you can capitalise on this to drive revenue with limited extra labour requirements.

Modern Systems...Or Magic?

Many modern systems, such as common rail diesel injection, can appear to be so complex that they seem to operate by magic.

Don't Waste Money Replacing Parts You Don't Need To

A 2005 Fiat Multipla had been to an independent repairer because the malfunction indicator lamp was on and it was running on limp mode.

Toyota Yaris Running Rough and Cutting Out

A 2002 Toyota Yaris had been out of use for several months and required assistance to start the engine when it was to be driven again.

DPF Hints and Tips

The diesel particulate filter is designed to trap and store Particulate Material (soot) that is produced by the diesel engine during normal driving.

ECM Tests On A Non-Starting Vehicle

A certain amount of caution is necessary when attempting to start vehicles which have a discharged battery.

Fuel Pump Relay Testing

A 2004 Opel Corsa with a Z10XE engine failed to start and there was no fuel pressure when tested at the fuel rail using a pressure gauge.

Testing An EGR Valve

A 2003 Honda Accord 2.0L petrol with engine code K20A6 had the engine management light illuminated and a fault code stored: EGR – Insufficient flow detected.

Basic Understanding Of Ignition Systems

The vehicle is a 2003 Fiat Punto 1.2L petrol with engine code 188.A4.000. It had the engine management light illuminated and was misfiring on two cylinders.

Fuel Trim Adaptation

The fundamental reason for the engine control module to implement fuel trim control is to meet the requirements of the exhaust gas after-treatment system.

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