Shorted out fan?

[C4S Surgeon]

Loren/Tool pants;

I think my deck lid fan is shorted out, any way to test it? I put an aero wing on car, I think it let a small amt of rain get on the fan, doesn't that happen with a stock lid anyway?

Edited December 8, 2004 by C4S Surgeon

[Loren]

The fan is actually a purge fan and only comes on when the engine is very hot. When it does come on it draws air into the engine comparment.

I'd start with fuse B4 - that would be 2nd row down from the top and 4th fuse in from the left. Should be 15A. There is also a relay (relay 8) for the blower - back in the area behind the backseats where the DME is.

There are only two wires to the fan. If you unplug the socket, the brown wire is ground and the red/black wire is +12V.

[C4S Surgeon]

Thanks Loren, I'll try that. Could be that the car hasn't gotten hot enough since I installed the spoiler. I'm probably being paranoid.

[P.Viby]

Could somebody tell me where the Temp sensor is. I have newer heard or seen the fan running on my car ??

[Loren]

Could somebody tell me where the Temp sensor is. I have newer heard or seen the fan running on my car ??

The fan only runs for a few seconds when it does run which is likely why you have never heard it. Here is the criteria:

Switch-on conditions for engine compartment fan (this fan pulls air into the engine compartment) - The engine compartment fan is switched on when the engine compartment temperature is > 176 degrees F (80 degrees C) or the coolant temperature is > 216 degrees F (102 degrees C).

If the ignition is switched off and the engine compartment temperature is more than 140 degrees F (60 degrees C), the DME control module remains in readiness for another 20 minutes. During this time, the engine compartment temperature is retrieved every 10 seconds. If the engine compartment temperature is > 185 degrees F (85 degrees C), the engine compartment fan is switched on for 20 seconds. If the engine compartment temperature is still > 185 degrees F (85 degrees C) after this time, the fan remains on for a further 30 seconds.

[P.Viby]

Thanks Loren,

But where is the sensor placed ?

[Loren]

It's kind of hard to describe. I'll see if I can get a pic tomorrow when there is more light.

[Loren]

Thanks Loren,

But where is the sensor placed ?

Not very easy to see since it is behind one of the intake pipes on the right side of the engine. It mounts on a little plate and has a short probe that sticks out into the air.

[P.Viby]

Super, Thanks Loren.

Will see if I can test it somehow. Maby heat it up with somekind of airblower.

:lightbulb:

Edited December 13, 2004 by P.Viby