{"nhtsa_id":10159962,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-05-20","date":"2015-11-26","document_id":"18-088-15","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT","mfr_system":null,"summary":"P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 This bulletin involves verifying the proper operation of the Diesel Exhaust Fluid (DEF) system and, if necessary, replacing the Selective Catalyst Reduction (SCR) Catalyst assembly. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find Diagnostic Trouble Code (DTC) P20EE SCR NOX Catalyst Efficiency Below Threshold Bank 1 set in the Powertrain Control Module (PCM) memory.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10159962-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10159962-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10159962","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":["P20EE"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2013,"year_to":2015,"match":"exact","vehicle_ids":["2013_ram_2500","2014_ram_2500","2015_ram_2500"]},{"make":"RAM","model":"3500","year_from":2013,"year_to":2015,"match":"exact","vehicle_ids":["2013_ram_3500","2014_ram_3500","2015_ram_3500"]}],"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":[]}