Audi A4 Fan Not Working: Troubleshooting & Repair

Hello everyone,

Does anyone know this error?

Code:

006469 - Steuergerät für Kühlerlüfter 1; Lüfteransteuerung: Kurzschluss                P1945 - 009 - Unterbrechung/Kurzschluß nach Masse              Umgebungsbedingungen:                     Fehlerstatus: 01100100                     Fehlerpriorität: 0                     Fehlerhäufigkeit: 5                     Verlernzähler: 40                     Kilometerstand: 0 km                     Zeitangabe: 0              Umgebungsbedingungen:                     Drehzahl: 864 /min                     Drehmoment: 32.0 Nm                     Geschwindigkeit: 43.0 km/h                         63.18 %                     Spannung: 13.33 V                         14.82 %                     Temperatur: 72.0°C

I once measured the resistance of the fan using an ohmmeter.
The fan motor is practically short-circuited (0.17 Ohms).
I'm assuming the engine is broken.

Does anyone know what the typical resistance value is?
What does such an air motor cost?
Is it available as a single part or only with the radiator housing?

The vehicle:

Audi A4 Avant.
BRD quattro.
Manufactured: 02/2007
Vehicle Identification Number (VIN): WAUZZZ8E77A188xxx Mileage: 82,290 km

Sure, here's the translation:

"Dear Christian,"

The resistance of a brushed motor cannot be measured in a useful way!

servusssss wrote:

The fan motor is practically short-circuited (0.17 Ohms). I'm assuming the engine is broken. Does anyone know what the normal resistance is?

May I ask which measuring device you used to measure the 0.17 ohms? It must have been a high-quality instrument, and the connections probably weren't just simple test probes. Otherwise, the measured value is likely primarily due to measurement error.

The cooler fans consume between 150 and 450 watts. Common types use around 300W. This results in a resistance of approximately 0.5 ohms, calculated as 12V * 12V / 300W.

Hast du den Lüfter einfach mal direkt an die Batterie gelegt (Kabel dabei nur kurz rüber wischen und auf festschweißen und entsprechend kräftiges Abreißen vorbereiten. VORSICHT: Sollte der Lüfter tatsächlich kurzgeschlossen sein, so besteht die Gefahr eines Kabelbrandes, wenn du dieses nicht sofort wieder von der Batterie lößt. Wenn das glühende Kabel dann in deiner Hand ist, ... Also, bBe careful when eating.

servusssss wrote:

How much does such an air motor cost? Is it available as a single item or only with the radiator housing?

Estimated price: €100-€300. However, any Volkswagen dealer can answer both of these questions for you in a five-minute phone call.


Basically, I'm hearing something with the fans. Please use the search function; there might be something related to this in our error database. (I have in mind that it could be due to flooded control units or worn-out brushes.)

Greetings.
Sure.

Here is the translation of the text from German to English:

"Guste" means "gust" in English. It can also be used as a verb, meaning "to gust."

Hello,

First of all, thank you for the answers.

I only measured the resistance to check if the motor had any breaks in its windings. I used a micro-ohm meter for the measurement.

The fan motor is not defective; it works when connected directly to the battery.

The problem is with the control circuit (fuses have been checked). It's only providing approximately 1 volt when the actuator diagnostics are enabled, with a duty cycle of 85% (it should be around 10 volts).


The part number is 8E0 959 501 T 01 and costs €202.54 at .

Sure, here is the translation of the text from German to English:

"Dear Christian,

I hope this email finds you well. I am writing to inform you that I will be unavailable for work from [start date] to [end date]. During this time, I will be on vacation and will not have access to my email or phone.

If you need to contact me urgently, please call [phone number]. Otherwise, I will respond to your emails upon my return.

Thank you for your understanding.

Sincerely,
[Your name]"