{"vehicle":{"id":"2012_jeep_grand-cherokee","year":2012,"make":"Jeep","model":"Grand Cherokee"},"code":"P0406","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10148595,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-19","date":"2015-01-23","document_id":"08-008-15","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ELECTRICAL SYSTEM","summary":"Flash: DTC P0405 / P0406 - MIL Light On This bulletin involves reprogramming the Engine Control Module (ECM) with new software. A small number of customers may report the MIL light is on. On further inspection Diagnostic Trouble Code (DTC), P0405 - EGR POSITION SENSOR CIRCUIT LOW and/or P0406 - EGR POSITION SENSOR CIRCUIT HIGH may be found.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148595-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148595-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148595"}],"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2012/bulletins?code=P0406"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/jeep/grand-cherokee/2012/codes/P0406","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}