{"vehicle":{"id":"2015_ram_4500","year":2015,"make":"Ram","model":"4500"},"code":"P203B","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":3,"bulletins":[{"nhtsa_id":10229248,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-09","date":"2015-05-30","document_id":"2500115","mfr_campaign":null,"component":"BACK OVER PREVENTION; FUEL SYSTEM, GASOLINE","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-10229248-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10229248-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10229248"},{"nhtsa_id":10148965,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-26","date":"2015-08-12","document_id":"25-001-15 REV-A","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","summary":"Diesel Exhaust Fluid (DEF) Level Sensor Manufacturing Defect This bulletin involves replacing the DEF pump module. A manufacturing defect in the level sensor may have occurred, if the level sensor was built within the time frame listed above. There may be a Malfunction Indicator Lamp (MIL) illuminated. 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-10148965-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148965-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148965"},{"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,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","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"}],"url":"https://open.wenmarpro.com/makes/ram/4500/2015/bulletins?code=P203B"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/ram/4500/2015/codes/P203B","note":"The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}