Cooling fans engage when cold

Hello, your fans should turn on if the climate control system is on in any way - it's part of the condenser cooling for the air conditioning system. It doesn't sound abnormal. Keep in mind your climate control is active often for dehumidification of the interior unless the system is off entirely. As far as the speed sensor code, testing is needed to determine if you have a faulty sensor, wiring or possibly driven gear concern. https://repairpal.com/auto-repair-near-me