{"nhtsa_id":10145243,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-09","date":"2018-09-14","document_id":"01-017-18-3518","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Some customers may experience a check engine light on and DTC P0401:00 stored in memory without any drivability issues. P0401:00 - [PCM] EGR flow insufficient detected. This concern may be caused by the detection logic for the DTC is too sensitive. To eliminate this concern, the control logic of the PCM has been modified.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145243-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145243-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10145243","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0401"],"topics":[],"vehicles":[{"make":"MAZDA","model":"CX-9","year_from":2016,"year_to":2018,"match":"exact","vehicle_ids":["2016_mazda_cx-9","2017_mazda_cx-9","2018_mazda_cx-9"]}],"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":[]}