Something Is Draining The Battery

[UKChris]

Hi guys

Well my 59 fiesta has developed a strange fault, basically something is draining the battery (until it is dead), after a little messing about I have found that if I sit in the car with the key out of the ignition and the doors locked I can her a fan cutting in and out intermittently, this fan is somewhere on the drivers side and I think it is to do with the EATC (but that's a guess), does any one have any ideas on what can be causing this. It is pulling about 1.6A when it is on, when it is off it goes down to 0.3A.

Also in addition to that the voice control has gone off, press the button, noting happens.

and also just in case it is related every so often when I put the car into revers the AC kicks in on full fans, this is intermittent though.

Because of everyone breaking down over the bank holiday, I'll not be able to get Ford to look at it until next Wednesday, so any help or pointers will be greatfully received.

Other than that the car is great. :(

Chris

[Nathan_M]

Can the EATC be turned off within the menu's or via a button? Im in the past with manual controls :) Also check the plugs that come into the fuse box are good and tight as they may be loose, it sounds like a short or loose connection or a wrong signal getting to the cars computer surely the fans power is cut with ignition off anyway, is it definately the interior fan and not the cooling fan in the engine bay?

[UKChris]

Hi

Thanks for your reply.

When I say that you can here a fan, I do not mean the ac fan, I think it is the little fan that samples the air, it goes off when the car door is opened. It's decently by the small vent on left hand side of the drivers side, not the normal heater vent

Unfortunately even when the climate control is turned off this thing still runs.

[Nathan_M]

Pull the fuse responsible for the EATC, and see if it still comes on, is the vent you are talking about the one near the heater controls?

[UKChris]

I have had a look for the fuse but so far I haven't found the right one, blooman hard to get those new style ones out.

The vent is beside the controls by the drives leg section, if that make any sense.

[Nathan_M]

That sounds like the footwell heating vent, what position do you leave the ventilation dial on? Try putting it on de mist and see if any air comes out up there, it does sound like the heater fan is coming on very low.

[UKChris]

Well I thought I would give you an update, just in case anyone has the same issues.

Again long story short.

Ford did there thing, and it turned out to be software issues, they updated the bluetooth and voice command software and adjusted some temperature sensor settings, everything is now working as it should be, the fan goes off when the car is locked so hopefully (fingers crossed) no more flat battery.

So £100 lighter but at least the old girl is back.

Chris