DTCs may be stored in the heating and air conditioning electronics control module (address word 08)
Audi technical service bulletin A851420 2033596- for 2009-2010 Audi A4, 2009-2014 Audi Q5 and 2008-2014 Audi A5 and others.
- Bulletin number
- A851420 2033596-
- Component
- Electrical system
- Summary
- Supersedes Technical Service Bulletin Group 85 number 13-17 dated May 15, 2013. DTCs may be stored in the heating and air conditioning electronics control module (address word 08). Improper operation of the fresh air blower could be caused by a faulty printed circuit board in the fresh air blower control module and/or the carbon brushes bind in the brush holder and, as a consequence, lose contact with the motor commutator of the fresh air blower.
Owners of these vehicles have filed 84 complaints in the electrical category.
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