Display group "014": Notes

WARNING: This page is about a different car, the 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Activation for Coolant Fan V7, signal from Air Quality Sensor G238 and request for fresh-air or recirculated-air mode by operating and display module, Climatronic Control Module J255.

Display field	Meaning	Remarks
1	Activation for Coolant Fan V7 in % Display = "0 %" No activation of Coolant Fan V7 by operating and display module, Climatronic Control Module J255 Display = "1 to 100%" Request for activation of Coolant Fan V7 by operating and display module, Climatronic Control Module J255 at so many % of maximum output	Data are transmitted via the CAN-Bus comfort system. Data are transferred via the CAN-Bus comfort system to the Instrument Cluster Control Module J285. The Instrument Cluster Control Module J285 transmits the data via the drive CAN-Bus system to the engine control module.

Display field

Meaning

Remarks

Activation for Coolant Fan V7 in %

Display = "0 %"

No activation of Coolant Fan V7 by operating and display module, Climatronic Control Module J255

Display = "1 to 100%"

Request for activation of Coolant Fan V7 by operating and display module, Climatronic Control Module J255 at so many % of maximum output

Data are transmitted via the CAN-Bus comfort system.
Data are transferred via the CAN-Bus comfort system to the Instrument Cluster Control Module J285. The Instrument Cluster Control Module J285 transmits the data via the drive CAN-Bus system to the engine control module.

NOTE:

The request for activation of the Coolant Fan V7 is transmitted by the operating and display module, Climatronic Control Module J255 if there is no compressor shutoff condition preventing activation of the compressor (activation of A/C Compressor Regulator Valve N280) (e.g. engine not running or "ECON" mode selected).
The Coolant Fan V7 is/are infinitely regulated by the Coolant Fan Control (FC)Control Module J293. The Coolant Fan Control (FC)Control Module J293 is activated by the relevant engine control module. The engine control module is activated by the operating and display module, Climatronic Control Module J255 via the convenience and drive CAN-Bus systems to activate the Coolant Fan V7.
However, the engine control module only activates the Coolant Fan Control (FC)Control Module J293 (and thus the Coolant Fan V7) if the engine is running.
The request for activation of the Coolant Fan V7 is transmitted by the operating and display module, Climatronic Control Module J255 to the engine control module. 100% is currently only requested at a pressure of approx. 26 bar in the refrigerant circuit.

Display field	Meaning	Remarks
2	Display field not used Vehicles with operating and display module, Climatronic Control Module J255 up to hardware/software version "0202"
	Feedback of activation transmitted by relevant engine control module to Coolant Fan Control (FC)Control Module J293 for Coolant Fan V7 in % Vehicles with operating and display module, Climatronic Control Module J255 as of hardware/software version "0203" Depending on ambient conditions (coolant temperature etc.), this value may be higher than request in display zone "1".
3	Vehicles with no Air Quality Sensor G238 Display = "n. installed" If, depending on hardware/software version of operating and display module, Climatronic Control Module J255, a different display appears, this can be ignored.	In the event of problems, check coding of operating and display module, Climatronic Control Module J255 if applicable
	Vehicles with Air Quality Sensor G238 Display = "X" (explanatory notes Remarks on requests from Air Quality Sensor G238 in zone "3" of display group " 014" )
4	Request for fresh or recirculated-air mode Display = "XX" (explanatory notes Remarks on requests for fresh-air or recirculated-air mode in zone "4" of display group "014" )