Saturn Sky Forums: Saturn Sky Forum - View Single Post - Engine Code P0691 Fan 1 Control Circuit Low
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post #7 of (permalink) Old 06-16-2019, 08:39 AM
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I would've expected a wiring problem first, but if you have eliminated that, then I would look at a (maybe partially) failed, or incompatible, controller module - despite it being new.

Are you sure the FCM was actually a problem? Did your fan stop running? If not, I would try swapping back. If so, maybe try a new controller.

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