RAM
18-101-25
Manufacturer communications
- Publication date
- 2025-11-18
- Received by NHTSA
- 2025-11-26
- NHTSA record numbers
- 11025715
Manufacturer summary
Original wording in English
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):
• P0087-00 - Fuel Rail Pressure Too Low.
• P2540-00 - Low Pressure Fuel System Sensor Circuit Range/Performance.
• P2543-00 - Low Pressure Fuel System Sensor Circuit Intermittent.
• P214D-00 - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration.
• P242B-00 - Exhaust Gas Temperature Sensor Circuit Performance - Bank 1 Sensor 3.
• P24DA - Particulate Matter Sensor Exhaust Sample Error Bank 1.
• P20EE-00 - SCR NOx Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1.
• P226C-00 - Turbocharger Boost Control "A" Slow Response.
• P2281-00 - Air Leak Between Maf And Throttle Body.
• P229F-00 - Nox Sensor Circuit Range/performance - Bank 1.
• P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit.
• P203F-00 - Reductant Level Too Low.
• P0423-00 - Heated Catalyst Efficiency Below Threshold Bank 1.
• P06B9-00 - Cylinder 1 Glow Plug Circuit Performance.
• P06BA-00 - Cylinder 2 Glow Plug Circuit Performance.
• P06BB-00 - Cylinder 3 Glow Plug Circuit Performance.
• P06BC-00 - Cylinder 4 Glow Plug Circuit Performance.
• P06BD-00 - Cylinder 5 Glow Plug Circuit Performance.
• P06BE-00 - Cylinder 6 Glow Plug Circuit Performance.
• P020A-00 - Cylinder 1 Injection Timing.
• P0263-00 - Cylinder 1 Contribution/Balance.
• P0266-00 - Cylinder 2 Contribution/Balance.
• P0269-00 - Cylinder 3 Contribution/Balance.
• P0272-00 - Cylinder 4 Contribution/Balance.
• P0275-00 - Cylinder 5 Contribution/Balance.
• P0278-00 - Cylinder 6 Contribution/Balance.
• P026B-00 - Injection Timing Performance. Customers may experience one or more of the following:
• Inverter drops out when shifting from park to drive.
• Diesel Exhaust Fluid level gauge inaccuracy This bulletin involves reprogramming the PCM with the latest available software.
• P0087-00 - Fuel Rail Pressure Too Low.
• P2540-00 - Low Pressure Fuel System Sensor Circuit Range/Performance.
• P2543-00 - Low Pressure Fuel System Sensor Circuit Intermittent.
• P214D-00 - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration.
• P242B-00 - Exhaust Gas Temperature Sensor Circuit Performance - Bank 1 Sensor 3.
• P24DA - Particulate Matter Sensor Exhaust Sample Error Bank 1.
• P20EE-00 - SCR NOx Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1.
• P226C-00 - Turbocharger Boost Control "A" Slow Response.
• P2281-00 - Air Leak Between Maf And Throttle Body.
• P229F-00 - Nox Sensor Circuit Range/performance - Bank 1.
• P0100-00 - Mass Or Volume Air Flow Sensor "A" Circuit.
• P203F-00 - Reductant Level Too Low.
• P0423-00 - Heated Catalyst Efficiency Below Threshold Bank 1.
• P06B9-00 - Cylinder 1 Glow Plug Circuit Performance.
• P06BA-00 - Cylinder 2 Glow Plug Circuit Performance.
• P06BB-00 - Cylinder 3 Glow Plug Circuit Performance.
• P06BC-00 - Cylinder 4 Glow Plug Circuit Performance.
• P06BD-00 - Cylinder 5 Glow Plug Circuit Performance.
• P06BE-00 - Cylinder 6 Glow Plug Circuit Performance.
• P020A-00 - Cylinder 1 Injection Timing.
• P0263-00 - Cylinder 1 Contribution/Balance.
• P0266-00 - Cylinder 2 Contribution/Balance.
• P0269-00 - Cylinder 3 Contribution/Balance.
• P0272-00 - Cylinder 4 Contribution/Balance.
• P0275-00 - Cylinder 5 Contribution/Balance.
• P0278-00 - Cylinder 6 Contribution/Balance.
• P026B-00 - Injection Timing Performance. Customers may experience one or more of the following:
• Inverter drops out when shifting from park to drive.
• Diesel Exhaust Fluid level gauge inaccuracy This bulletin involves reprogramming the PCM 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
P0087-00Fuel Rail Pressure Too LowRam
P0100-00Mass Or Volume Air Flow Sensor "A" CircuitRam
P020A-00Cylinder 1 Injection TimingRam
P0263-00Cylinder 1 Contribution/BalanceRam
P0266-00Cylinder 2 Contribution/BalanceRam
P0269-00Cylinder 3 Contribution/BalanceRam
P026B-00Injection Timing PerformanceRam
P0272-00Cylinder 4 Contribution/BalanceRam
P0275-00Cylinder 5 Contribution/BalanceRam
P0278-00Cylinder 6 Contribution/BalanceRam
P0423-00Heated Catalyst Efficiency Below Threshold Bank 1Ram
P06B9-00Cylinder 1 Glow Plug Circuit PerformanceRam
P06BA-00Cylinder 2 Glow Plug Circuit PerformanceRam
P06BB-00Cylinder 3 Glow Plug Circuit PerformanceRam
P06BC-00Cylinder 4 Glow Plug Circuit PerformanceRam
P06BD-00Cylinder 5 Glow Plug Circuit PerformanceRam
P06BE-00Cylinder 6 Glow Plug Circuit PerformanceRam
P20EE-00SCR NOx Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1Ram
P214D-00SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter RegenerationRam
P226C-00Turbocharger Boost Control "A" Slow ResponseCheck 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 | 2500 | 2026 |