I have a 2000 Grand Prix GTP. The radiator fans won’t turn on unless I unplug the coolant temp sensor. I’ve checked the relays and fuses and wiring and it’s all good. The coolant temp sensor works, the dash will show the temp, does that mean the sensor is working or could changing the sensor still fix the fans? At this point it’s gotta be either the sensor or the PCM. What is the most likely scenario?