{"nhtsa_id":10030086,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-07-31","date":"2009-06-19","document_id":"ITB-09-031","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"INFINITI: AFFECTED VEHICLES HAS THE MIL ON AND DTC P1421 STORED (COLD START CONTROL) IN ECM. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10030086","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P1421"],"topics":[],"vehicles":[{"make":"INFINITI","model":"QX56","year_from":2009,"year_to":2009,"match":"exact","vehicle_ids":["2009_infiniti_qx56"]}],"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":[]}