Seeing this can be very frustrating, is it your diagnostic tool? is it a faulty component?
We are always looking for ways to make the lives easier for our clients. We constantly hear about Auto Techs replacing expensive ECU's only to find that it was not the cause of the problem all because they were unable to communicate with A ECU during A diagnostic session. Soon we will be hosting a new course aimed making the Automotive Diagnostic technician more aware of how automotive networks work. And How to diagnose them Effectively!