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A Signficant First Step To Diagnose a CEL
For a cheap piece of electronics, this device means a lot to a motorist facing a modern automobile problem, the check engine light. Plugging it into the ODB2 port and running a phone app reveals very accurately the essential cause of the CEL. While it cannot precisely identify a particular manufacturer's code, it gives enough information to start a more in depth analysis and a repair of the problem.