Cooling fans Will not come on car overheats well sitting still
You can disconnect the electrical plug on the rad cooling fan/s and run jumper wires directly to the motor contacts from the battery if it does not run replace the cooling fan motor. if the motor runs then check for a bad cooling fan relay. this is were its best to have a scan tool as you can see the coolant temp of the engine and the computer commanding the cooling fans to come on. if the computer commands the fans to come on then you have eliminated 2/3 of the system working.
SOURCE: engine problems 1999 dodge neon sport 2.0 L 16 valve DOHC
I had the same problem. I replaced the temp sensor and used a 2 pair of wires to test the fans. The fans were worked. The problem was the wire connection to the control module.
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