{"nhtsa_id":10117582,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-09-14","date":"2012-10-11","document_id":"167-T1204-12","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM; ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"12 - 002 Diagnosis Procedure for P2457. Some engines may erroneously record a P2457 DTC in the ECU. This fault condition is due to ECU software misdetection of EGR cooler efficiency.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10117582-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2012/MC-10117582-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10117582","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"cooling-system","name":"Cooling system","parent":"engine"},{"id":"software","name":"Software","parent":"electrical"}],"codes":["P2457"],"topics":[],"vehicles":[{"make":"HINO","model":"NE8J","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"HINO","model":"NJ8J","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"HINO","model":"NV8J","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]}],"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":[]}