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Asked: Apr 05, 2009 - 01:09 PM

Status: Closed

93 Ford Taurus cooling fan will not run.

i replaced the engine control module located on top by radiator because plug was melted afterwards the cooling fan quit working i replaced the fan motor still nothing wired it direct to battery worked!!!temp gauge works also any ideas what it might be relay maybe and if so where is the relay located for the cooling fan i would really appreciate a lead on where to start looking at thank you for taking time helping people. Scott, Corpus Christi Texas

In Maintenance & Repair > Heating / Cooling > Fan
In Makes & Models > Ford > Taurus
1 answer - 128 days ago

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rickmn

Date: Jul 02, 2009
Time: 07:27 PM

The engine control module is NOT on top of the radiator. What you replaced is the constant control relay module. First check the fuse for the cooling fan. It's in the engine compartment fuse box. That sends power to a fan dropping resistor located on the top left of the engine. So check the power coming to the resistor on the black/orange wire. If you have power on that wire, then check for power coming out of the resistor on the brown/orange wire. From there, the power goes into the CCRM. Once the relay closes, it sends power to the fan on the dark blue wire.The coolant temp sensor tells the powertrain control module (located behind the passenger side firewall) how hot the coolant is. When the PCM decides to turn on the cooling fan, it sends a signal on the tan/orange wire to the power inverter inside the CCRM. That controls the cooling fan relay. There is a grounding connection at the top left (driver's side) of the radiator. If that ground isn't good, the relays and the fan won't work.

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