{"nhtsa_id":10175714,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-05-26","date":"2020-04-03","document_id":"18-005-20 REV. A","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN; ELECTRICAL SYSTEM","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the correct software. This vehiclemay have been programmed with incorrect software. The customer may experience Active Noise Control (ANC) system not working. Upon further investigation the technician may find the followingDiagnostic Trouble Codes (DTCs) has been set:B154F-64 - Lost Crankshaft Pulse Signal-Signal Plausibility Failure B154F-24 - Lost Crankshaft Pulse Signal-Signal Stuck High.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175714-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10175714-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10175714","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["B154F"],"topics":[],"vehicles":[{"make":"RAM","model":"2500","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_ram_2500"]},{"make":"RAM","model":"3500","year_from":2020,"year_to":2020,"match":"exact","vehicle_ids":["2020_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":[]}