{"nhtsa_id":10121321,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-31","date":"2013-09-20","document_id":"A011330 2027082-","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Supersedes Technical Service Bulletin Group 24 number 12-28 dated April 24, 2012. MIL on. DTC P0234 (Turbo/Super Charger Overboost Condition) is stored in the engine control module, J623 (address word 01). No other DTCs are stored. DTC P0234 can be set inadvertently by the software application. DTC P0234 can be set with an actual cause in combination with loss of engine power and low/uneven engine performance, based on charge pressure control.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10121321-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2013/MC-10121321-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10121321","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0234"],"topics":[],"vehicles":[{"make":"AUDI","model":"A4","year_from":2009,"year_to":2010,"match":"exact","vehicle_ids":["2009_audi_a4","2010_audi_a4"]},{"make":"AUDI","model":"A4 AVANT","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"A5","year_from":2009,"year_to":2012,"match":"exact","vehicle_ids":["2009_audi_a5","2010_audi_a5","2011_audi_a5","2012_audi_a5"]},{"make":"AUDI","model":"A5 CABRIOLET","year_from":2009,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"AUDI","model":"Q5","year_from":2009,"year_to":2012,"match":"exact","vehicle_ids":["2009_audi_q5","2010_audi_q5","2011_audi_q5","2012_audi_q5"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}