dp213 Posted June 21, 2017 Share Posted June 21, 2017 The fans on my impreza are constantly running, even when key is on and car is not running. When it is running the temp stays right iin the middle. I checked the green plugs under the dash and they are not plugged in. Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 21, 2017 Share Posted June 21, 2017 interesting, I don't think they both are controlled by a single relay that could be stuck. maybe the CTS is bad telling the ECU the car is always hot? Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted June 21, 2017 Share Posted June 21, 2017 If the AC button is On or front defrost is on and blower fan control is on, the fans will run with key On engine Off. ECU thinks the AC is on, so it commands the radiator fans to run. Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 21, 2017 Share Posted June 21, 2017 (edited) If the AC button is On or front defrost is on and blower fan control is on, the fans will run with key On engine Off. ECU thinks the AC is on, so it commands the radiator fans to run.ah, key is ON DOH! I guess I missed that. Edited June 21, 2017 by 1 Lucky Texan Quote Link to comment Share on other sites More sharing options...
dp213 Posted June 21, 2017 Author Share Posted June 21, 2017 I put the control on floor heat Quote Link to comment Share on other sites More sharing options...
dp213 Posted June 21, 2017 Author Share Posted June 21, 2017 My apologies. I thought I had selector on floor, but I didn't, it was on mix. The fans shut off when I went to only heat, no defrost. So is it normal for them to run constant when in defrost mode Quote Link to comment Share on other sites More sharing options...
golucky66 Posted June 21, 2017 Share Posted June 21, 2017 Yes. Whenever the A/C is running the fans will be on. Quote Link to comment Share on other sites More sharing options...
dp213 Posted June 22, 2017 Author Share Posted June 22, 2017 And defrost is badically the same as ac? Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted June 22, 2017 Share Posted June 22, 2017 a/c dries the air so it defogs the inside of a window better. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.