{"vehicle":{"id":"2001_jaguar_xk","year":2001,"make":"Jaguar","model":"XK"},"code":"P0121","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":1,"bulletins":[{"nhtsa_id":10011317,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-01-15","date":"2002-11-01","document_id":"30358","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","summary":"CHECK ENGINE MALFUNCTION INDICATOR LAMP - DIAGNOSTIC TROUBLE CODE P0121 FLAGGED - CONNECTOR MATERIAL MISMATCH - AJ27 ENGINES - MODIFY HARNESS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10011317"}],"url":"https://open.wenmarpro.com/makes/jaguar/xk/2001/bulletins?code=P0121"},"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/jaguar/xk/2001/codes/P0121","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."]}