You all already know how important it is for an ECM/PCM (or any other control module, for that matter) to have a good power supply and good grounds. Typically, grounds fail at their point of connection, and testing these ground connections can be mad
Creative Director, Technical | Vehicle Repair Group
Pete Meier is the former creative director, technical, for the Vehicle Repair Group with Endeavor Business Media. He is an ASE certified Master Technician with over 35 years of practical experience as a technician and educator, covering a wide variety of makes and models. He began writing for Motor Age as a contributor in 2006 and joined the magazine full-time as technical editor in 2010. Pete grew the Motor AgeYouTube channel to more than 100,000 subscribers by delivering essential training videos for technicians at all levels.
