{"nhtsa_id":10148941,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-26","date":"2015-05-30","document_id":"25-001-15","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"Diesel Exhaust Fluid (DEF) Level Gauge Inaccurate Or Stuck This bulletin involves verifying the correct DEF level in the tank and if necessary, replacing the DEF pump module. A small number of customers may comment that their DEF level gauge is stuck for long periods of time or is erratic. The customer may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of the following Diagnostic Trouble Codes (DTCs). ? P203B - Reductant Level Sensor Circuit Performance ? P203C - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit Low. ? P203D - (Diesel Exhaust Fluid) Reductant Level Sensor Circuit High.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148941-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148941-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148941","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":["P203B","P203C","P203D"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_ram_2500","2015_ram_2500"]},{"make":"RAM","model":"3500","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_ram_3500","2015_ram_3500"]},{"make":"RAM","model":"4500","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_ram_4500","2015_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":[]}