A Curley one for the brain boxes in the house

wombletomble, Mar 21, 8:14pm
My wife has a 2001 cedia wagon that the radiator fan runs for no reason but the kicker is that battery goes flat over night for no reason that I can see. No lights on or doors ajar. Any ideas folks!

a.woodrow, Mar 21, 8:23pm
When you say fan runs for no reason, when is it running!

bigfatmat1, Mar 21, 8:25pm
yep cause the ac is on

franc123, Mar 21, 8:34pm
Curly one lol, thats easy, its the control unit for the fan thats faulty, its a silver finned box thing on the LH side of the radiator, they poo themselves all the time and make the fans run at random regardless of the key position, hence the flat batteries.If you whack it with a hammer you can make it switch on and off, it needs replacement. I'd suspect the actual problem is dud switchgear or relays within it but AFAIK its a sealed unit. Get a new one from Mitsi, don't bother going secondhand.

wombletomble, Mar 22, 6:24am
Awesome I think you got it on the mark all right. I didn't know what it was called but your dead right, thanks franc that's awesome.