Ford Focus Cooling Fan Relay Troubleshooting 2004 Probl Customer: i have a 2004 ford focus (2.0l, dohc). the cooling fans are stuck on all of the time, even with the engine off and the keys out of the ignition. from what i am reading, there are the following component to consider the cooling fan relay, the resistor module, the cht (cylinder head temperature) sensor. 22770 posts · joined 2005. #5 · aug 5, 2010. first check to see if you have resistance on the fan pins if you have an electrical meter that will show ohms. i don't know the exact figure but it should be more than 1 ohm, and not as much as 100. if you can't find any resistance on the fan motor leads then it's toast.
Ford Focus Cooling Fan Wiring Diagram Wiring Digital And Schematic About press copyright contact us creators advertise developers terms privacy policy & safety how works test new features nfl sunday ticket press copyright. To check it with the engine not running you need to have the lights on first for about 10mins to get rid of any residual charge that would give a false reading, turn the lights off when taking a reading. can you also do the same thing when you turn the fan on and off so we can see any change in voltage. reply like. n. Cooling fan 1 control circuit malfunction this dtc may be caused by : open circuit to fan relay blown fuse or wiring defect damaged or faulty relay faulty or damaged fan motor improper connection fan stays on:can be short circuit to; vpwr, ground in harness, connector, or a faulty or damaged pcm. ===end pcm dtc p0691 64=== ===pcm dtc b1473 68===. 3. you can check all the relays by starting the car and feeling for a click in the relay. 4. if you hot wire the fan straight to the 12v battery and the thing turns on, its not broken dont replace it. 5. if you are getting a temperature on the test mode screen, the temp sensor works, dont replace it.
2004 Ford Focus 2 3 A C Neither Cooling Fan Works Relays Are Goo Cooling fan 1 control circuit malfunction this dtc may be caused by : open circuit to fan relay blown fuse or wiring defect damaged or faulty relay faulty or damaged fan motor improper connection fan stays on:can be short circuit to; vpwr, ground in harness, connector, or a faulty or damaged pcm. ===end pcm dtc p0691 64=== ===pcm dtc b1473 68===. 3. you can check all the relays by starting the car and feeling for a click in the relay. 4. if you hot wire the fan straight to the 12v battery and the thing turns on, its not broken dont replace it. 5. if you are getting a temperature on the test mode screen, the temp sensor works, dont replace it. The first thing that you would want to do is locate the fuse for your focus’s radiator fan and make sure that it hasn’t blown. if it is blown, replacing the fuse will only solve the problem for a very limited period of time. unless the wiring issue is fixed, the fuse will blow again. the wiring harness itself can go bad. When the heater is set to screen even if the air conditioning is switched off , the air con will run as will the air con cooling fan. this is normal operation. you confirm this by turning the heater distribution control to face vents or feet and after a short period with the engine running the fans should stop. never, never, never give up.
Ford Focus Cooling System Troubleshooting The first thing that you would want to do is locate the fuse for your focus’s radiator fan and make sure that it hasn’t blown. if it is blown, replacing the fuse will only solve the problem for a very limited period of time. unless the wiring issue is fixed, the fuse will blow again. the wiring harness itself can go bad. When the heater is set to screen even if the air conditioning is switched off , the air con will run as will the air con cooling fan. this is normal operation. you confirm this by turning the heater distribution control to face vents or feet and after a short period with the engine running the fans should stop. never, never, never give up.
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