A6 / S6 (C6 Platform) Discussion - AC blower not working (Special Situation) - One day my 07 2.8 (without solar roof) AC blower not working and the following codes found by VCDS: 01273- Fresh Air Blower (V2) 02023- Supply Voltage for control module for fresh air blower lower limit exceeded 01844- control module for How to replace air-con/heater air blower motor in Audi A6 (C6 4F) WheelsAndMotors 39.6K subscribers Subscribe 242K views 9 years ago Here's direct link to our website with description of The blower output stage and the pressure sensor (see figure) use a shared signal line to communicate with the control units (Climatronic). If the sensor fails, communication is disrupted and the blower is no longer activated. The error code 2071 is then stored in the error memory. Audi A6 models built from 2005 to 2007 have be known for having an issue with its pump valve unit; in fact, a TSB ( 2013833/5) was issued, recommending replacement of the old unit with a newly updated model. The problem occurs when the pump valve becomes blocked with engine debris. If the interior blower fails on the vehicles mentioned above, the cause may be a faulty pressure sensor in the air-conditioning system. The blower output stage and the pressure sensor (see figure) use a shared signal line to communicate with the control units (Climatronic). 02071 Audi A6 with no heater blower. I walk through my diagnostic thought process on this A6 logging 02071 communication fault with no heater blower more. .

audi a6 c6 blower not working