RAM
08-253-25 REV. B
Manufacturer communications
- Publication date
- 2025-12-03
- Received by NHTSA
- 2025-12-11
- NHTSA record numbers
- 11026542
Manufacturer summary
Original wording in English
Flash: Radio Frequency Hub Module (RFHM) Updates Technicians may experience the following Diagnostic Trouble Code (DTC):
• B22A9-00 - ECU Internal Performance. NOTE: This DTC will be Active and there are no customer symptoms with this DTC This bulletin involves inspecting and possibly updating the RFHM with the latest available software and also possibly replacing the RFHM
• B22A9-00 - ECU Internal Performance. NOTE: This DTC will be Active and there are no customer symptoms with this DTC This bulletin involves inspecting and possibly updating the RFHM with the latest available software and also possibly replacing the RFHM
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
B22A9-00ECU Internal PerformanceCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ram | 3500 | 2025 |