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Fan comes on immediately when cold, before cranking...
Posted 07 April 2010 - 04:35 PM
I know I had stumbled across some issue where this is the symptom in these forums, and alas I cannot find the dang thread again!
Why would the fan on the radiator go on right away when she's cold and not turned over?
Posted 07 April 2010 - 04:39 PM
state your year and model.
If you have an older BRAT, maybe it was hard wired in that way.
if you have Legacy and newer, than yeah, diagnostic d check connectors not supposed to be plugged in
Posted 07 April 2010 - 04:41 PM
Posted 08 April 2010 - 12:39 AM
The fans will cycle on, and off, and on again with the key on, engine off if the plugs are hooked together.
If the fans come on and stay on, then the coolant temp sensor could have failed. The computer defaults to running the fans continuously if the CTS fails. That would set a code though.
The A/C system can turn the fans on, make sure it's not set on a/c or defrost and see if that turns them off.
You could have a stuck fan relay, it's rare but possible.
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