Here’s another great case study by Bob in Massachusetts, this time recounting the diagnosis and repair of a no-start 2016 Chevrolet Express 2500 Work Van. In this case, the only code he had was a U0121 for lost communication with the ABS control module. When
This month’s edition is relatively long, but well organized and very revealing. In this great post by Abraham in Texas, he breaks down a case study of a 2020 Ford F-350 Super Duty with multiple network failures and the driver’s side rear turn indicator light
Here’s a really interesting one from Diagnostic Network, provided by Vladyslav in Ukraine, of all places. In it, he recounts a problematic 2017 Mercedes E300 (W213) that would start each time on the first attempt, but wouldn’t start if it was turned off and a
A word of warning: this one is not for the faint of heart. Not because it contains anything disturbing, but because it is extremely detailed, written almost like an academic paper. That said, if you are a diagnostic technician or if you regularly deal with
Here’s a great case study, provided by Jacob in New York, where he outlines his diagnostic journey trying to resolve a check engine light on a 2015 Chevrolet Silverado 1500 LT. When a scan showed P2635, U18A2 and U0074, he knew that the focus was
Here’s a great case study, provided by our friend Michael in Utah, related to a 2010 Dodge Ram 1500 SLT that his customer brought to him for a TIPM reset. As expected from Michael, he dug into the problem vehicle prior to performing the TIPM
Here’s a pretty strange and frustrating case study, provided by Chad in Colorado, related to a 2020 Toyota Avalon that, upon turning the vehicle off and exiting it, the infotainment cluster remained on and displayed a “key left vehicle” error message. He started his diagnostic
Another great case study by Bob in Massachusetts, this time related to a 2011 F-250 no crank situation that had already had its battery and starter motor replaced before it got to him. As he described it, “At key on, the dashboard lights up but
This is one of those “always cover the basics” reminders, but it is a good one with a great example of how failing to check the simple things can lead to trouble and waste a lot of time. Here, Ryan from Indiana uses the example
With Halloween just having passed, we couldn’t resist spotlighting this recent case study from our old friend Michael from Utah. This one is a great tutorial on using your system knowledge and vehicle-specific knowledge to quickly and accurately diagnose an electrical system issue that was
