The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored...
Audi technical service bulletin A011526 2041120- for 2012-2014 Audi A6, 2013-2015 Audi Q5 and 2011-2015 Audi S4 and others.
- Bulletin number
- A011526 2041120-
- Component
- Power train: automatic transmission: control module (TCM/PCM/tecm)
- Summary
- The MIL is on. DTC P042000 and/or P043000 (Catalyst system Bank 1/2, Efficiency below threshold) is stored in the engine control module (ECM), J623 (address word 01). The diagnostic limitations were too narrow.
Owners of these vehicles have filed 100 complaints in the transmission category.
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