{"nhtsa_id":10194039,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-05-24","date":"2021-04-02","document_id":"18-034-21","mfr_campaign":null,"replaces":null,"component":"BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE","mfr_system":null,"summary":"P203E and P203F Additional Diagnostic Information This bulletin provides additional information regarding diagnosing Diesel Exhaust Fluid (DEF) issue in extreme cold weather. Diagnostic Trouble Codes (DTCs) P203E - Reductant Level Sensor 1 Circuit Intermittent and/or P203F - Reductant Level Too Low set.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194039-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10194039-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10194039","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"backup-camera","name":"Backup camera","parent":"driver-assistance"}],"codes":["P203E","P203F"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_ram_2500","2020_ram_2500","2021_ram_2500"]},{"make":"RAM","model":"3500","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_ram_3500","2020_ram_3500","2021_ram_3500"]},{"make":"RAM","model":"4500","year_from":2019,"year_to":2021,"match":"exact","vehicle_ids":["2019_ram_4500","2020_ram_4500","2021_ram_4500"]}],"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":[]}