RAM
18-009-26
Manufacturer communications
- Publication date
- 2026-01-31
- Received by NHTSA
- 2026-02-04
- NHTSA record numbers
- 11028236
Manufacturer summary
Original wording in English
Flash: Powertrain Control Module (PCM) Updates V2C 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):
• 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.
• 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.
• P020A-00 - Cylinder 1 Injection Timing.
• P020B-00 - Cylinder 2 Injection Timing.
• P020C-00 - Cylinder 3 Injection Timing.
• P020D-00 - Cylinder 4 Injection Timing.
• P020E-00 - Cylinder 5 Injection Timing.
• P020F-00 - Cylinder 6 Injection Timing.
• P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low.
• 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.
• P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1.
• P203F-00 - Reductant Level Too Low.
• P2698-00 - Exhaust Aftertreatment Fuel Injector "A" Performance.
• P1C54-00 - SCR NOX Catalyst Missing.
• P056E-00 - Cold Start Turbocharger/Supercharger Boost Control "A" Performance.
• P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation.
• P1451-00 - Diesel Particulate Filter System Performance. M18 FSAR-TSB-6753 -2-
• P0234-00 - Turbocharger Overboost Condition.
• P20E8-00 - Reductant Pressure Too Low.
• P208B-00 - Reductant Pump 1 Control Performance. Customers may also comment on one or more of
• 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.
• 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.
• P020A-00 - Cylinder 1 Injection Timing.
• P020B-00 - Cylinder 2 Injection Timing.
• P020C-00 - Cylinder 3 Injection Timing.
• P020D-00 - Cylinder 4 Injection Timing.
• P020E-00 - Cylinder 5 Injection Timing.
• P020F-00 - Cylinder 6 Injection Timing.
• P0072-00 - Ambient Air Temperature Sensor Circuit "A" Low.
• 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.
• P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold - Bank 1 Catalyst 1.
• P203F-00 - Reductant Level Too Low.
• P2698-00 - Exhaust Aftertreatment Fuel Injector "A" Performance.
• P1C54-00 - SCR NOX Catalyst Missing.
• P056E-00 - Cold Start Turbocharger/Supercharger Boost Control "A" Performance.
• P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation.
• P1451-00 - Diesel Particulate Filter System Performance. M18 FSAR-TSB-6753 -2-
• P0234-00 - Turbocharger Overboost Condition.
• P20E8-00 - Reductant Pressure Too Low.
• P208B-00 - Reductant Pump 1 Control Performance. Customers may also comment on one or more of
Reported code forms
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
Ram
P0072-00Ambient Air Temperature Sensor Circuit "A" LowRam
P0087-00Fuel Rail Pressure Too LowRam
P020A-00Cylinder 1 Injection TimingRam
P020B-00Cylinder 2 Injection TimingRam
P020C-00Cylinder 3 Injection TimingRam
P020D-00Cylinder 4 Injection TimingRam
P020E-00Cylinder 5 Injection TimingRam
P020F-00Cylinder 6 Injection TimingRam
P0234-00Turbocharger Overboost ConditionRam
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
P056E-00Cold Start Turbocharger/Supercharger Boost Control "A" PerformanceRam
P06B9-00Cylinder 1 Glow Plug Circuit PerformanceRam
P06BA-00Cylinder 2 Glow Plug Circuit PerformanceRam
P06BB-00Cylinder 3 Glow Plug Circuit 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 |