{"nhtsa_id":10214598,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-06-27","date":"2022-05-10","document_id":"18-093-22","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; ENGINE AND ENGINE COOLING; FUEL SYSTEM, DIESEL; POWER TRAIN","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following DTCs have been set: P0299 - Turbocharger Underboost. P0401 - EGR System Performance. P0755 - 2C Solenoid Circuit. P0765 - UD Solenoid Circuit. P244A - Diesel Particulate Filter Differential Pressure Too Low. P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. P242F - Diesel Particulate Filter Restriction - Ash Accumulation. P1451 - Diesel Particulate Filter System Performance. P2463 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P0607-00 - ECU Internal Performance. P0299-00 - Turbocharger Underboost. P1451-00 - Diesel Particulate Filter System Performance(Sales Code ETL Only). In addition, the customer may notice one or more the following conditions: Idle instability. Air handling bump after startup. Harsh shifts during garage shift tip-in. 2-1-2 gear hunting at low speeds, especially on grades. Driveline ?clunk? ?bump? during D-R and R-D GarageShifts. Harsh 5-3 downshift. 2-1 ERS downshift with exhaust brake on, performance improvement. Intermittent shift bump. The following improvements are also included in this update: Fuel System Run-Up Test routine, wiTECH improvement. wiTECH PCM data improvements. wiTECH cylinder cut-out routine, wiTECH improvement. Oil pressure switch modifications. Urea (DEF fluid) level sensor calibration update, to help prevent bumpsin DEF level gauge.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214598-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10214598-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10214598","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0299","P0401","P0607","P0755","P0765","P1451","P20EE","P242F","P244A","P2463"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_ram_2500"]},{"make":"RAM","model":"3500","year_from":2021,"year_to":2021,"match":"exact","vehicle_ids":["2021_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":[]}