Accessory fan coolant switch

[FORSFED]

Thanks for the info Eric. I've tried looking everywhere. I'm assuming if 185 is 0 ohms then there must be some resistance when at room temp (figure I should maybe check this also...)? I was just thinking I could warm the car up to 185 and take a reading instead of taking the sensor out first. If it checks out ok, then I'll jumper the terminals at the plug to see if the fan turns on as you stated. I'll post up what I find out.