{"nhtsa_id":11024560,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-29","date":"2025-10-22","document_id":"18-031-25 REV. C","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P06DD-00 - Engine Oil Pressure Control Circuit Performance/Stuck Off. ● P0073-00 - Ambient Air Temperature Sensor Circuit \"A\" High. ● P0071-00 - Ambient Air Temperature Sensor Performance. ● P2C90-00 - Crankcase Ventilation System - Hose \"A\" Disconnected. ● P1CEA-00 - Boost Side EVAP Purge System Performance. ● P05BD-00 - Stop-start Mode Switch Range/Performance. ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking. ● U0673-00 - Lost Communication With Ion Sense Module.** ● P00C6-00 - Fuel Rail Pressure Too Low - Engine Cranking - in ACTIVE or STORED status. ● P0325-00 - Knock/Combustion Vibration Sensor 1 Circuit - in ACTIVE or STORED status. ● P0330-00 - Knock/Combustion Vibration Sensor 2 Circuit - in ACTIVE or STORED status. ● P032A-00 - Knock-Combustion Vibration Sensor C Circuit - in ACTIVE or STORED status. ● P018B-00 - Fuel Pressure Sensor \"B\" Circuit Range/Performance - in ACTIVE or STORED status. ● P2AF6-00 - Starter Relay 3 Stuck Off - in ACTIVE or STORED status. ● P0300-00 - Multiple Cylinder Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0301-00 - Cylinder 1 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0302-00 - Cylinder 2 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0303-00 - Cylinder 3 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0304-00 - Cylinder 4 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0305-00 - Cylinder 5 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. ● P0306-00 - Cylinder 6 Misfire - in ACTIVE or STORED status set during cold start catalyst heating. NOTE: To confirm the cold start catalyst heating, use WiTech Freeze Frame data, and confirm \"Time Since Engine Start\" less than 30 seconds and \"Engine Coolant Temperature °F\" less than 50 °C (122 °F) when Misfire Code was set. See Step 3 for more details. ● U0104-00 - Lost Communication With Cruise Control Module - in ACTIVE or STORED status. This software update will allow this permanent fault code to naturally clear. ● U0405-00 - Invalid Data Received From Cruise Control Module - in ACTIVE or STORED status. This software update will allow this permanent fault code to naturally clear. Customers may also experience one or more of the following: ● **Rough running engine. ● \"Excessive Oil - Service Vehicle\" message display in the Instrument Panel Cluster (IPC). ● Vehicle is difficult to start. ● Potential stalling when coming to a stop with an immediate restart. NOTE: If the engine were to stall while stopping, a message would display in the IPC informing the driver to shift to Park to restart the engine.* This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024560-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024560-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024560","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0071","P0073","P00C6","P018B","P0300","P0301","P0302","P0303","P0304","P0305","P0306","P0325","P032A","P0330","P05BD","P06DD","P1CEA","P2AF6","P2C90","U0104","U0405","U0673"],"topics":[],"vehicles":[{"make":"RAM","model":"1500","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ram_1500"]}],"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":[]}