{"vehicle":{"id":"2012_mazda_cx-9","year":2012,"make":"Mazda","model":"CX-9"},"code":"P0456","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":10153312,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-02-19","date":"2019-01-10","document_id":"01-005-19-3548","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Some vehicles may exhibit the check engine light on with DTC P0456 stored in the PCM memory. P0456: EVAP system leak detected (very small leak). The concern is most likely the result of the customer not getting the fuel cap completely closed after fueling the vehicle. This causes a small fuel vapor leak and turns DTC P0456 on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10153312-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10153312-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10153312"},{"nhtsa_id":10142517,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-07-02","date":"2018-05-11","document_id":"01-013-18-3478","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","summary":"Some vehicles may exhibit the check engine light on with DTC P0456 stored in the PCM memory. P0456: EVAP system leak detected (very small leak)The concern is most likely the result of the customer not getting the fuel cap completely closed after fuelingthe vehicle. This causes a small fuel vapor leak and turns DTC P0456 on.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10142517-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10142517-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10142517"},{"nhtsa_id":10105447,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-06-07","date":"2015-05-15","document_id":"01-008-15-3045","mfr_campaign":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL","summary":"SOME VEHICLES MAY EXHIBIT THE CHECK ENGINE LIGHT ON WITH DTC P0456 STORED IN THE PCM MEMORY. • P0456: EVAP SYSTEM LEAK DETECTED (VERY SMALL LEAK) THE CONCERN IS MOST LIKELY THE RESULT OF THE CUSTOMER NOT GETTING THE FUEL CAP COMPLETELY CLOSED AFTER FUELING THE VEHICLE. THIS CAUSES A SMALL FUEL VAPOR LEAK AND TURNS DTC P0456 ON.","document":null,"url":"https://open.wenmarpro.com/bulletins/10105447"},{"nhtsa_id":10098304,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-05-04","date":"2014-06-10","document_id":"01-014-14-2932","mfr_campaign":null,"component":"FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP; ENGINE","summary":"SOME VEHICLES MAY EXHIBIT THE CHECK ENGINE LIGHT ON WITH DTC P0456 STORED IN THE PCM MEMORY.• P0456: EVAP SYSTEM LEAK DETECTED (VERY SMALL LEAK) THE CONCERN IS MOST LIKELY THE RESULT OF THE CUSTOMER NOT GETTING THE FUEL CAP COMPLETELY CLOSED AFTER FUELING THE VEHICLE. THIS CAUSES A SMALL FUEL VAPOR LEAK AND TURNS DTC P0456 ON.","document":null,"url":"https://open.wenmarpro.com/bulletins/10098304"}],"url":"https://open.wenmarpro.com/makes/mazda/cx-9/2012/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/mazda/cx-9/2012/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."]}