{"vehicle":{"id":"2004_nissan_titan","year":2004,"make":"Nissan","model":"Titan"},"code":"P0456","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":2,"bulletins":[{"nhtsa_id":10120566,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-25","date":"2017-07-21","document_id":"NTB17-082","mfr_campaign":null,"component":"EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:TANK VALVE/GAUGE","summary":"NISSAN; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING IF YOU CONFIRM The MIL is ON in an APPLIED VEHICLE with DTC P0456 (EVAP VERY SML LEAK) AND - DTC P0456 is not caused by a loose fuel fill cap (refer to NTB13-097). - An EVAP leak has been detected where the vent control valve mounts to the canister. - The vent control valve O-ring seal is determined to be the cause. ACTION 1. DO NOT REPLACE the vent control valve. 2. Replace the vent control valve O-ring seal (O-ring). - Refer to SERVICE PROCEDURE on page 2.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10120566-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10120566-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10120566"},{"nhtsa_id":10119249,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-10-15","date":"2017-08-21","document_id":"NTB17-082a","mfr_campaign":null,"component":"SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE","summary":"NISSAN; DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. The APPLIED VEHICLES and CLAIMS INFORMATION sections have been revised. No other changes have been made. Please discard previous versions of this bulletin.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10119249-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10119249-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10119249"}],"url":"https://open.wenmarpro.com/makes/nissan/titan/2004/bulletins?code=P0456"},"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/nissan/titan/2004/codes/P0456","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."]}