{"nhtsa_id":10147665,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-13","date":"2015-03-01","document_id":"B121615","mfr_campaign":null,"replaces":null,"component":"ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR","mfr_system":null,"summary":"N63T: Oxygen Sensor Internal Resistance Faults. The Service Engine Soon light comes on with either or both of the following faults stored in the DME memory: ? 12B701 - Oxygen sensor heating after catalytic converter, function: Internal resistance too high ? 12B801 - Oxygen sensor heating after catalytic converter 2, function: Internal resistance too high The engine operation and performance are not affected. The DME diagnosis for the post catalyst oxygen sensor(s) is too sensitive.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10147665-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10147665-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10147665","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null},{"id":"catalytic-converter","name":"Catalytic converter","parent":"exhaust-emissions"}],"codes":[],"topics":[],"vehicles":[{"make":"BMW","model":"1 SERIES M","year_from":2011,"year_to":2013,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"525D XDRIVE","year_from":2014,"year_to":2014,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"550I","year_from":2011,"year_to":2016,"match":"exact","vehicle_ids":["2011_bmw_550i","2012_bmw_550i","2013_bmw_550i","2014_bmw_550i","2015_bmw_550i","2016_bmw_550i"]},{"make":"BMW","model":"550I GRAN TURISMO","year_from":2010,"year_to":2012,"match":"base","vehicle_ids":["2010_bmw_550i","2011_bmw_550i","2012_bmw_550i"]},{"make":"BMW","model":"650I","year_from":2012,"year_to":2016,"match":"exact","vehicle_ids":["2012_bmw_650i","2013_bmw_650i","2014_bmw_650i","2015_bmw_650i","2016_bmw_650i"]},{"make":"BMW","model":"750I","year_from":2009,"year_to":2015,"match":"exact","vehicle_ids":["2009_bmw_750i","2010_bmw_750i","2011_bmw_750i","2012_bmw_750i","2013_bmw_750i","2014_bmw_750i","2015_bmw_750i"]},{"make":"BMW","model":"750LI","year_from":2009,"year_to":2015,"match":"exact","vehicle_ids":["2009_bmw_750li","2010_bmw_750li","2011_bmw_750li","2012_bmw_750li","2013_bmw_750li","2014_bmw_750li","2015_bmw_750li"]},{"make":"BMW","model":"ACTIVE HYBRID 7","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"ACTIVE HYBRID 7","year_from":2014,"year_to":2014,"match":"exact","vehicle_ids":["2014_bmw_activehybrid-7"]},{"make":"BMW","model":"ACTIVEHYBRID 7","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"BMW","model":"X5","year_from":2014,"year_to":2016,"match":"exact","vehicle_ids":["2014_bmw_x5","2015_bmw_x5","2016_bmw_x5"]}],"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":[]}