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So I have the 7730 ECM, and I recall in GMPCM there was an option for Fan 2 temp on & off. Is there a pin-out that is for this option to add a second fan?
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has to be one of these pins... check the wiring diagram and start checking off ones that are already used. F1 - F8Okay now, that's enough of that. -
is there a schematic somewhere? Would the bulkhead just have a missing pin?Comment
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No schematics that I'm aware of... Just set it to turn on at xx degrees, and start swapping the coolant temp sensor out with resistors to see if it turns on.Okay now, that's enough of that.Comment
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okay, I'm 80% sure it's pin F8Okay now, that's enough of that.Comment
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Okay now, that's enough of that.Comment
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