Quote:
Originally Posted by 80stech
As for the lower rad hose sensor, the DME is not seeing the disconnected sensor as reading a "low temp" but as "disconnected" and would then likely run the fan as a failsafe. I didn't spend a lot of time checking, but with the coolant sensor disconnected the fan ramped up to about 1/2 speed (DME still knows engine temp) and with the A/C sensor disconnected ramped up to high. Both ramped back down when re-connected. What is the reason for wanting adjustable active fan control ??
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For my 2001, the disconnected rad hose sensor caused my Foxwell to show the temp as -54*F. Maybe the ECU considers this as disconnected.
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2001 X5 3.0i, 203k miles, AT, owned since 2014
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