In-Vehicle Network Technologies

Diagnosing communications issues within and among vehicle networks can be very tricky business. A key component to successfully pinpointing and addressing these issues is having a solid understanding of how the vehicle network is designed and operates. This is a daunting task, considering how many different network topologies are used…

Got Cardboard? Maybe You’ve Got a Fix.

Here’s a great drive-ability case study that required some serious sleuthing to get to the root cause of the complaint, which was intermittent bucking or skipping (later determined to occur around 2500-3000 RPM) on a 2012 Hyundai Elantra. Bob from Massachusetts donned his detective cap and followed an excellent diagnostic…

No Start from the Strangest of Causes

We have featured some strange causes for no starts in the resource articles over the years, from rodents chewing wires to other odd circumstances, but this one might be at the top of the “who would have guessed it” list. In this great case study, Michael from Utah recounts a…

Subaru Won’t Run Right After Dead Battery

The battery on a 2000 Subaru Legacy got drained due to an error on the part of the vehicle owner. Now, it stalls out after a start. Michael from Utah provides this quick case study, relaying how he resolved the problem in a very non-intuitive way. Awesome sleuthing and well…

Honda Crank Profile Relearn Tips

Another one to file under, “Is it Hardware/Is it Software/Is it a Network Problem?” In this very helpful post from Bob in Massachusetts, he walks through his diagnostic process on a 2009 Accord that had a previous unsuccessful repair attempt. Based on an initial review of vehicle data, he thought…

Time Saving Alternator Replacement Tip

Techs often reference the fact that the recommended service procedures aren’t always the fastest or easiest ways to accomplish necessary repairs. Here’s a great example provided by Eric from Illinois. He saw several potential potholes in the recommended procedure for an alternator replacement on a 2015 Nissan Pathfinder. So, he…

Benefits of a Diagnostic Game Plan

In these pages, we have emphasized the importance of having a diagnostic plan when it comes to resolving intermittent electrical system faults. As the experts state time and again, it saves time, money and you are far less likely to throw a part at a problem that wasn’t needed. This…

Relay Causing Battery Drain

This month’s iATN spotlight is a great reminder of how the battery’s health and performance are directly tied to the proper operation of the other systems in the vehicle. When one of the other systems has an issue, poor battery performance is often one of the first symptoms of the…