SnafuBE Posted June 23, 2017 Share Posted June 23, 2017 I have googled til my eyes bled. Hard to find some clear answers and I was hoping someone can help. I have a 2011 2.5i and noticed that the rad fans were not coming on. I connected to an app to monitor and noticed that the coolant temp kept climbing when at idle (stuck in traffic jams). When I was at home I popped the hood and let the car idle. Temps hit over 200 and the fans were not coming on. There are 3 relays; main fan2 (light grey), main fan (blue) and sub fan (blue). The two blue relays are the same. I cannot locate the fuses for the fans. The underhood diagram does not say and a few are marked as SBF and a number. All fuses over 20A do not look blown. I tested the sub fan (guessing it is the one on the passenger side) by quickly applying 12v...it spun I pulled at the relays and any fuse over 20A and put them back in (in case bad connection). I did not see any corrosion. Fans are still not running. I turned on the AC and the main fan (driving side one) came on and cooled the temps. I think it is suppose to do this regardless of coolant temp. I swapped the two blue relays (main fan and sub fan) and with the AC on the main fan comes on. So they might be fine So I know the fans are working if they get voltage. I know the two blue relays are fine (assuming they turn on the fan when the AC is on). I could not test the main fan2 relay (grey). SO I am puzzled. One troubleshooting step suggested the engine coolant temperature sensor but it did not say where it was located or how to test it. Where are the fuses for the fans located? Where is the temperature sensor located? thanks for the help. I am scratching my head Link to comment Share on other sites More sharing options...
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