Fan Control Module Issues
#1
Fan Control Module Issues
Hello,
For a few years now, the radiator fans in my Jag have been... well, snarky. First I thought it was the FCM, then the car made it seem like it isn’t, then it does again.... it’s been a mess!
We just had the car looked at a shop near my house that works exclusively on Jaguars. The ECM threw a trouble code of P0480, which indicates “Cooling fan drive circuit malfunction.” The shop, which are quite reputable, said that this causes the fans to kick on intermittently and will eventually cause the fans to not turn on at all. BUT they said to replace this part, you need to replace the entire Radiator assembly. (>$1400)
I checked other forums on here to make sure the issue was indeed with the FCM. Here’s where it gets interesting. Started the car. While in park, switched A/C to full power. Sure enough, the radiator fan starts turning (not full blast or loudly, but significantly fast). This makes me think that the FCM is working fine. Am I wrong? The fans are coming on when they need too, but not turning off after driving. I’m stuck.
So could it be another part within the Radiator, or is it the ECM altogether? Possibly Thermostat reading the wrong temperatures?
Any advice is welcome! Thank You!
For a few years now, the radiator fans in my Jag have been... well, snarky. First I thought it was the FCM, then the car made it seem like it isn’t, then it does again.... it’s been a mess!
We just had the car looked at a shop near my house that works exclusively on Jaguars. The ECM threw a trouble code of P0480, which indicates “Cooling fan drive circuit malfunction.” The shop, which are quite reputable, said that this causes the fans to kick on intermittently and will eventually cause the fans to not turn on at all. BUT they said to replace this part, you need to replace the entire Radiator assembly. (>$1400)
I checked other forums on here to make sure the issue was indeed with the FCM. Here’s where it gets interesting. Started the car. While in park, switched A/C to full power. Sure enough, the radiator fan starts turning (not full blast or loudly, but significantly fast). This makes me think that the FCM is working fine. Am I wrong? The fans are coming on when they need too, but not turning off after driving. I’m stuck.
So could it be another part within the Radiator, or is it the ECM altogether? Possibly Thermostat reading the wrong temperatures?
Any advice is welcome! Thank You!
#2
Fan control module. DO NOT buy the cheap Asian ones. Check SNG Barrett (forum sponsor), Rock Auto, etc. A link to one is in this post =
https://www.jaguarforums.com/forum/x...module-201955/
https://www.jaguarforums.com/forum/x...issues-208781/
https://www.jaguarforums.com/forum/x...module-201955/
https://www.jaguarforums.com/forum/x...issues-208781/
#3
#6
Fan control module. DO NOT buy the cheap Asian ones. Check SNG Barrett (forum sponsor), Rock Auto, etc. A link to one is in this post =
https://www.jaguarforums.com/forum/x...module-201955/
https://www.jaguarforums.com/forum/x...issues-208781/
https://www.jaguarforums.com/forum/x...module-201955/
https://www.jaguarforums.com/forum/x...issues-208781/
Do you by chance have a link to a good FCM for a 2000-2004 Jag X-Type? I believe the one linked there is for the 2005-2012 models. The old model is long and skinny
#7
X TYPE (X400) were 2002-2009 (no '00, '01, '10, '11 or '12 models), the module noted fits all of them. There was a difference in wiring harness on earlier models from later. But, note the mentioned module has fittings for all.
Before you jump right into that, read the 2 links about other possible causes first. Start easiest (i.e. Fuse, coolant level, thermostat, etc.) and least expensive on up.
Before you jump right into that, read the 2 links about other possible causes first. Start easiest (i.e. Fuse, coolant level, thermostat, etc.) and least expensive on up.
Last edited by Dell Gailey; 12-21-2018 at 01:57 AM.
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#8
#10
X TYPE (X400) were 2002-2009 (no '00, '01, '10, '11 or '12 models), the module noted fits all of them. There was a difference in wiring harness on earlier models from later. But, note the mentioned module has fittings for all.
Before you jump right into that, read the 2 links about other possible causes first. Start easiest (i.e. Fuse, coolant level, thermostat, etc.) and least expensive on up.
Before you jump right into that, read the 2 links about other possible causes first. Start easiest (i.e. Fuse, coolant level, thermostat, etc.) and least expensive on up.
#11
Not necessarily, the thermostat is not easily checked like on older cars where you removed a couple of bolts and took a look or tested it. I recently had to replace the entire assemble that has the thermostat in it because of the ubiquitous crack in the top of the "T" plastic pipe our X's suffer. It's not a fun replacement job.
Testing, and removal =
https://github.com/alloy/The-Jag/issues/2
Here's a video on repairing a 2001-2004 module.
Testing, and removal =
https://github.com/alloy/The-Jag/issues/2
Here's a video on repairing a 2001-2004 module.
Last edited by Dell Gailey; 12-21-2018 at 12:51 PM.
#12
Not necessarily, the thermostat is not easily checked like on older cars where you removed a couple of bolts and took a look or tested it. I recently had to replace the entire assemble that has the thermostat in it because of the ubiquitous crack in the top of the "T" plastic pipe our X's suffer. It's not a fun replacement job.
Testing, and removal =
https://github.com/alloy/The-Jag/issues/2
Here's a video on repairing a 2001-2004 module.
https://youtu.be/b6Vv0JVytxM
Testing, and removal =
https://github.com/alloy/The-Jag/issues/2
Here's a video on repairing a 2001-2004 module.
https://youtu.be/b6Vv0JVytxM
It was easy. You just have to remove the air filter box and battery box to expose the plugs and harnesses. Under the battery, there are 2 small plugs underneath the FCM itself, which are the main cables that connect to the ECM. Then you have 2 more cables that feed to each fan motor. Be mindful of where the cable clips are, because they are kinda hard to find. It’s definitly a squeeze to get to the fans, but it’s not terrible; just a few scratches. Anyway. If you need any help, send me a reply and I’ll talk you through it.
Thank you all for the help! You saved me a ton of cash!
Last edited by TylerDeBois; 12-25-2018 at 06:38 PM.
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