RAM
9100598
Manufacturer communications
- Publication date
- 2025-05-23
- Received by NHTSA
- 2025-05-29
- NHTSA record numbers
- 11018649
Manufacturer summary
Original wording in English
Module, Urea Pump/Level: HD 6.7L (ETL/ETN/ETM) with Mil On P21C4-00 (Reductant Line Heater Relay Control Circuit High / U11C1-00 (Reductant Control Module Received Implausible Data From ECM/PCM), do not replace the DEF Pump. Follow TSB's released and appropriate Service Diagnostics.
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
U11C1-00Reductant Control Module Received Implausible Data From ECM/PCMCheck vehicle applicability
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.