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...Electrical Problems Require Proper Tools As electronics electrical circuits get more advanced, the tools required to diagnose and fix them have also evolved. Brendan Ryan, from A.D.S, explains how to use a few of these tools, that are considered by many, to be as essential as a spanner wh...

...Resetting a Toyota Corolla ESP torque sensor A 2007 Corolla was brought to A.D.S Ryan recently with no power steering assistance. Seamus Ryan recounts the steps needed to get the car back on the road, and explains some EPS basics. The Corolla was brought to our garage because their w...

...BMW Air bag fault from an unlikely source A 2009 BMW 520D was brought to A.D.S Ryan recently with an air bag light on. Seamus Ryan recounts the steps, including a simulated circuit, that made the repair possible. The BMW 520D was brought into our work shop with the air bag light on...

...Relative compression testing made easy Correct functioning of an engine depends on many things like correct sensor readings and good functioning actuators. But the engine itself also needs to be in good condition. A relative compression test can easily determine whether all cylinders...

...Investigations on a BMW X5 CAN Bus system Most technicians grimace at the thought of a CAN Bus fault on a modern vehicle, and rightly so, as there can be many control units connected to the system which may have caused the fault. This can make it quite overwhelming for a technician as to...

...An Astra lacking power A 2003 Opel Astra 1.7DTI was lacking power, and the customer had been told that the engine ECU was suspected of being faulty, as it wasn't switching the boost control solenoid. Seamus Ryan of Ryans Automotive recounts how the true cause of the problem was easily d...

...Vehicle networks - Byteflight Byteflight networks were first used in early 2000's, and were primarily intended for safety systems, such as airbags. The Byteflight design dictated reliability, high fault tolerance and high data speed between ECUs. Byteflight can also be used for other ve...

...Choosing an Oscilloscope Have you ever looked at an oscilloscope and been bewildered by the different specifications? Sampling, Bandwidth, Differential or Single Ended, Resolution, Input Voltage, and the list goes on. Ryan's Automotive's Seamus Ryan explains some of the basic terminology...

...DPF Regeneration Modes A Diesel Particulate Filters (DPF) traps soot that naturally occurs during normal diesel combustion. Several modes are used by manufacturers to burn the trapped soot into ash. Ryan Automotive's Seamus Ryan provides an overview of the various modes and how they func...

...About ADAS Advanced Driver Assistance Systems (ADAS) are in operation, in some respect, on most modern vehicles now on the roads. Seamus, from Ryans Automotive, outlines some of the fundamental aspects of these systems and why you, if you don’t already know, need to get to grips with th...



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