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International Automotive Technicians Network
Re: Engine won't shut off with key
Posted to Technical Discussion Forum on 5/11/2025

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Very true. And it seems many of GM's (really the only ones I saw) have errors. Where they tell you to "unplug ECM connector C1, check ckt 1234 for continuity. Turn key on, check for 5V on ckt 1234". ... Login to read more.