Coolant sensor on the back of the head looks screwy, so I grounded the wire, temp light comes on, but no fan.
Ran + and – directly to fan motor. Fan comes on, spins fine.
Now I’m stumped so I pull front fender and look at connection. Green from wiring harness is backwards from green on fan connection.
I reversed the wires, still nothing when I ground sensor wire (temp light still comes on).
So I go to checking and if I run + to fan motor it comes on. Apparently it is getting constant ground and NOT constant + like I thought it was supposed to.
Did the fan system change from year to year? Was it always a "sensor grounds system which turns fan on" system?
I’m stumped. I know I can run a toggle and make it work but I’d rather have it right.
There any other sensors in this circuit?
