P208B on the 2020 Ram 1500
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.
Nobody has written a description of this code yet.
| 18-002-23 | 2023-02-13. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: **P2183 - Engine Coolant Temperature Sensor 2 Circuit Performance. P016F - Closed Loop Fuel Pressure Control At Limit - Pressure Too Low. P025C - Fuel Pump Module Control Circuit Low. P208B - Reductant Pump 1 Control Performance. P0403-00 - EGR Control Circuit Open ? Disabled Fault.** P225D-00 - NOX Sensor 1/1 Performance Signal Stuck Low. P249C-00 - Excessive Time To Enter Closed Loop Reductant Injection Control. P065A - Generator System Performance. P00F4-00 - Humidity Sensor Circuit Low. P20FB-00 - Reductant Pump 2 Control Performance. P200A-00 - Intake Manifold Runner Performance Bank 1. P200B-00 - Intake Manifold Runner Performance Bank 2. P2610 - PCM Internal Engine Off Timer Performance. P015E - Excessive Time to Enter Closed Loop Fuel Timing Control. P0534-00 - AC Refrigerant System A Charge Loss. P26FB-00 - EGR Cooler Bypass Control Stuck Closed Bank 1. P04DB-00 - Crankcase Ventilation System Disconnected. P204F-00 - Reductant System Performance. P2D2D-00 - Cold Start Intake Manifold Runner Performance Bank 1. P2D2E-00 - Cold Start Intake Manifold Runner Performance Bank 2. P2199-00 - Intake Air Temperature Sensor 1/2 Correlation. P22FA-00 - NOX Sensor Performance Slow Response High To Low Bank 1 Sensor 1. P2002-00 - Diesel Particulate Filter Efficiency Below Threshold. P0087-00 - Fuel Rail Pressure Too Low. P0128-00 - Thermostat Rationality (additional software enhancement). P0300-00 - Multiple Cylinder Misfire (cold ambient temperature). P0301-00 - Cylinder 1 Misfire (cold ambient temperature). P0302-00 - Cylinder 2 Misfire (cold ambient temperature). P0303-00 - Cylinder 3 Misfire (cold ambient temperature). P0304-00 - Cylinder 4 Misfire (cold ambient temperature). P0305-00 - Cylinder 5 Misfire (cold amb |
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| S1925000008 | 2023-01-17. Service bulletin. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set. |
| S1925000008 | 2022-10-17. Service bulletin. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1925000008RevA | 2022-09-26. Service bulletin. (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1925000008 | 2022-09-26. Service bulletin. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set. |
| S1925000008 | 2022-06-27. Service bulletin. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set. |
| S1925000008 Rev. | 2020-12-28. Service bulletin. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1925000008 Rev. | 2020-12-21. Service bulletin. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1925000008 Rev. | 2020-09-28. Service bulletin. (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1925000008 | 2020-06-22. Service bulletin. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
10 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.