Questions on 2 Pins Blue/Green

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10-23-2020, 04:26 PM

Vetteman61

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Questions on 2 Pins Blue/Green

On the Blue/Green ECM (2004)

Blue Pin 75: off/run/crank voltage.
Green Pin 59: Crank voltage.

What do these do? Where do they go and what are they for?

Thanks,
Brandon

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10-23-2020, 08:41 PM

ls1nova71

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Blue pin 75 is an ignition power to the PCM, and green pin 59 is the wire from the ignition switch if you're using a PCM controlled starter relay, most people delete it.