Radiator fan fuse blowing

2001 AUDI A4
90,000 MILES • 2.0L • 4 CYL • FWD • AUTOMATIC
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PHILBRADLEY
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Within a few seconds of starting engine radiator fan fuse blows at end of dash, the fuse is 15 amp at position 9. I know most are listed as 5 amp at position 4.
Oct 7, 2017 at 9:32 PM
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STEVE W.
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I would say you either have a faulty fan control module or a bad fan motor causing a high current draw. I cannot find a good wiring diagram in the US based data we use but they use the same style control in other vehicles from VW/Audi.
Oct 9, 2017 at 5:10 PM
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PHILBRADLEY
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Had already put in new fan control module still blowing fuse.
Both fans run when A/C is turned on.
Oct 9, 2017 at 11:08 PM
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STRAILER
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I think this might be the wiring for the system. I managed to get the fuse box location and diagrams for you as well so we can be on the same page on what the fuses do. (below)

Position #9 seems to be the seat heater system.

Please let us know what happens and upload pictures or videos of the problem.

Cheers, Ken
Oct 10, 2017 at 1:21 PM
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PHILBRADLEY
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2001 A4 B6 RHD Australia
The fuses are set up differently
Seat heating is#44 30A
Radiator fan is #9 15A
On the fuse cover is a fuse position sticker listing all the fuses 1 to 44 it has a number down the bottom that is 8E0 010 160E
Oct 10, 2017 at 10:56 PM
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PHILBRADLEY
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I uploaded pictures, very hard to get a clear shot.
Oct 10, 2017 at 11:23 PM
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STRAILER
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I would try to unplug the fan and the module and see if the fuse still blows.

Please let us know what happens.

Cheers, Ken
Oct 11, 2017 at 10:31 AM
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PHILBRADLEY
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Unplugged fan module still blowing fuse.
Regards Phil.
Oct 14, 2017 at 11:03 PM
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STRAILER
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Next I would try unplugging the fan motor and then the relays one at a time to see if any of them items have a short, if the fuse still blows then a wire must be touching ground.

Here is a guide to help you do some testing on each wire and find out which on it is so you can either repair or run a new wire.

https://www.2carpros.com/articles/how-to-check-wiring

Please let us know what happens.

Cheers, Ken
Oct 16, 2017 at 11:06 AM