RAM
08-056-26
Manufacturer communications
- Publication date
- 2026-02-11
- Received by NHTSA
- 2026-02-19
- NHTSA record numbers
- 11028866
Manufacturer summary
Original wording in English
Flash: Brake System Control Module (BSCM) Updates Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic.
• C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. Customers may also comment on the following:
• When either or both DTCs are set the ABS light will turn on and vehicle will lose ABS, Trailer Sway Control (TSC) and Electronic Stability Control (ESC) functions. This bulletin involves reprogramming the BSCM module with the latest available software.
• C0037-2F - Left Rear Wheel Speed Sensor - Signal Erratic.
• C003A-2F - Right Rear Wheel Speed Sensor - Signal Erratic. Customers may also comment on the following:
• When either or both DTCs are set the ABS light will turn on and vehicle will lose ABS, Trailer Sway Control (TSC) and Electronic Stability Control (ESC) functions. This bulletin involves reprogramming the BSCM module with the latest available software.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
C0037-2FLeft Rear Wheel Speed Sensor - Signal ErraticRam
C003A-2FRight Rear Wheel Speed Sensor - Signal ErraticCheck 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 | 2026 |