P1404 on the 2024 Ram 4500
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| 18-004-26 | 2026-02-04. Service bulletin. 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): ● P1404 - EGR Close Position Performance. Customers may also comment on one or more of the following: ● Engine tugging. ● Unstable idle. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software. |
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| 09-007-25 | 2025-04-08. Service bulletin. "Heavy Duty Exhaust Gas Recirculation (EGR) Value Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1404 - EGR Position Sensor Rationality Closed This bulletin involves replacing the EGR valve." |
| 09-017-24 | 2024-07-30. Service bulletin. "Heavy Duty Exhaust Gas Recirculation (EGR) Valve 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): ● P1404 - EGR Position Sensor Rationality Closed This bulletin involves replacing the EGR valve." |
3 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.