This month’s iATN spotlight hits on two common topics we frequently see in technical articles and on iATN: communication network issues causing no-start or intermittent start situations and the tendency for add-on systems to be the source of vehicle electrical or electronic woes. In this detailed post that includes some nice waveform captures and relevant schematics, Morgan from Minnesota breaks down a recent repair that required a good bit of sleuthing to determine the culprit:

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About iATN
The International Automotive Technicians Network is the largest network of automotive repair professionals in the world: a group of 80,000+ automotive professionals from over 160 countries. The members of this group exchange technical knowledge with their peers around the globe, sharing 1.8 million years of experience. iATN has been proudly serving the automotive service and repair industry and the needs of professional automotive mechanics around the world, for over 15 years.