AudiNike12

Scanned with my diagnostic tool and got this fault code. I deleted it to see if it came back and it did. I guess it's the small fan associated with the temp sensor and is located behind the little grille in the AC unit? It says the speed deviation is too high. Don't know if that's the correct term since English is not my first language

Does anyone know what that means? Do I have to replace the unit? Or the little fan? Or is it nothing I've to worry about?

My car: Audi A6 2.4 -04

georgeb944

Here's what the service manual says...

00796 3234
Interior Temperature Sensor Fan -V42-
Blocked or no voltage /SP – Interior Temperature Sensor Fan -V42- faulty (installed in A/C Display Control Head -E87-).
– Replace A/C Display Control Head -E87-.

AudiNike12

Ok so I have to replace the enitre unit. The little fan is not enough then?

AudiNike12

The funcction of that fan is to suck in air from the cabin and then measure the temperature no? Does it also help adjust the temperature when using the AUTO function on the AC unit?

georgeb944

The fan is part of the unit and cannot be separately replaced. Therefore, you must replace the unit.

AudiNike12

Aa ok. Thanks for the help

Nazman39

my fan was dirty with lint on it and around the grill. I blow it clean and it started working fine and no fault codes.

AudiNike12

Oh really? Did you take the AC unit out or did you just blow air through the grill?

Nazman39

I removed the Radio because I installed a GROM Bluetooth adapter and was able to use a can of air (for cleaning computers) and blow it clean. Use the straw that comes with the can.
The radio is straight forward to remove. Just YouTube it.
good luck.

Elderoo