{"vehicle":{"id":"2016_ram_4500","year":2016,"make":"Ram","model":"4500"},"code":"P203B","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":4,"bulletins":[{"nhtsa_id":10219909,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-15","date":"2017-06-24","document_id":"25-003-17 REV. A","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Flash: Dosing Control Unit (DCU) Diagnostic and System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs):P207F - Reductant Quality Performance. P202C - Reductant Tank Heater Control Circuit High. P203B - Reductant Level Sensor 1 Circuit Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10219909-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10219909-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10219909"},{"nhtsa_id":10217578,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-08-08","date":"2017-03-24","document_id":"25-003-17","mfr_campaign":null,"component":"EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION","summary":"Flash: Dosing Control Unit (DCU) Diagnostic And System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs): P207F - Reductant Quality Performance. P202C - Reductant Tank Heater Control Circuit High. P203B - Reductant Level Sensor 1 Circuit Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10217578-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10217578-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10217578"},{"nhtsa_id":10140046,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2017-03-24","document_id":"25-003-17","mfr_campaign":null,"component":"EQUIPMENT","summary":"Flash: Dosing Control Unit (DCU) Diagnostic And System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs): P207F - Reductant Quality Performance. P202C - Reductant Tank Heater Control Circuit High. P203B - Reductant Level Sensor 1 Circuit Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10140046-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10140046-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140046"},{"nhtsa_id":10138931,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-04","date":"2017-06-24","document_id":"25-003-17 REV. A","mfr_campaign":null,"component":"ENGINE AND ENGINE COOLING","summary":"Flash: Dosing Control Unit (DCU) Diagnostic and System Improvements This bulletin involves reprogramming the DCU with the latest available software and if necessary replacing the unit. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Codes (DTCs):P207F - Reductant Quality Performance. P202C - Reductant Tank Heater Control Circuit High. P203B - Reductant Level Sensor 1 Circuit Performance.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10138931-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10138931-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10138931"}],"url":"https://open.wenmarpro.com/makes/ram/4500/2016/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/4500/2016/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."]}