{"vehicle":{"id":"2025_ram_2500","year":2025,"make":"Ram","model":"2500"},"code":"P208B","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":8,"bulletins":[{"nhtsa_id":11031678,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-29","date":"2026-04-22","document_id":"18-014-26 REV. A","mfr_campaign":null,"component":"ENGINE","summary":"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): ● **P0088-00 - Fuel Rail Pressure Too High - Bank 1.** ● P20CF-00 - Exhaust After treatment Fuel Injector \"A\" Stuck Open. ● P20DB-00 - Exhaust After treatment Fuel Supply Control Stuck Open. ● U0109-00 - Lost Communication With Fuel Pump Control Module. ● P1451-00 - Diesel Particulate Filter System Performance. ● P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. ● P2459-00 - Diesel Particulate Filter Regeneration Too Frequent. ● 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-00 - 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. ● 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. ● 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. Customers may also comment on one or more of the following: ● Long engine crank times, particularly after fuel filter change. ● Inverter drops out when shifting from P to D gears. ● Diesel Exhaust Fluid (DEF) level gauge slow to update after a refill. ● Poor cold start performance. ● Cruise control drops out/cancels on its own. ● Engine stumble, runs rough, or a slight lack of power. The following software enhancements are also available: ● Reduce the occurrence of false faults Diagnostic Trouble Codes (DTCs) P0300-00, **P0088-00** and P0315-00. ● Improved troubleshooting and repair accuracy for air handling components through APT test in wiTECH. ● DTC P1451-00 re-tune to reduce false faults. ● Improvements to allow DTC P2509-00 faults to be cleared with wiTECH. ● Adaptive Cruise Control (ACC) software fix to prevent cruise control dropouts. ● Engine stumble fix for improved drivability. ● Engine stall detection allowing DTC P032F-00 to clear after a power cycle. ● Allow multiple PROXI rewrites. ● Enable cold re-prime (DTC P208B-00 improvement) This bulletin involves inspecting and possibly reprogramming the Engine Control Module (ECM/PCM) with the latest available software","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031678-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11031678-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11031678"},{"nhtsa_id":11030039,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-13","date":"2026-03-05","document_id":"S2625000001 REV.A","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Active/Pending Diagnostic Trouble Code (DTC) P208B And/or P20E8 Setting In The Powertrain Control Module (PCM)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030039-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030039-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030039"},{"nhtsa_id":11029772,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-05","date":"2026-02-26","document_id":"S2625000002","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Malfunction Indicator Lamp (MIL) Illuminated, Diagnostic Trouble Codes (DTCs) P208B, P2D1F, P218F, P202E, P2048, P20E8, Setting In The Powertrain Control Module (PCM)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029772-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029772-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029772"},{"nhtsa_id":11029697,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-05","date":"2026-02-17","document_id":"S2625000001","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Active/Pending Diagnostic Trouble Code (DTC) P208B And/or P20E8 Setting In The Powertrain Control Module (PCM)","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029697-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029697-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029697"},{"nhtsa_id":11029671,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-03-05","date":"2026-02-21","document_id":"08-076-26","mfr_campaign":null,"component":"ELECTRICAL SYSTEM","summary":"Flash: Diesel Exhaust Fluid Control Unit (DCU) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. ● P202C-00 - Reductant Tank Heater Control Circuit High. - in Active or Stored status. ● P20E8-00 - Reductant Pressure Too Low. - in Active or Stored status. ● P209F-00 - Reductant Tank Heater Control Circuit Performance. - in Active or Stored status. ● P208B-00 - Reductant Pump 1 Control Performance. - in Active or Stored status.** ● P218F-00 - Reductant No Flow Detected. ● P249E-00 - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. **Customers may also comment one or more the following: ● \"Service Diesel Exhaust Fluid (DEF) System See Dealer\" message in the Electronic Vehicle Information Center (EVIC). NOTE: This message will appear after the DEF pump fails to build pressure, a fault is set and the message continues to be displayed for 80 km (50 mi) of driving. ● \"Speed Will Be Limited To 8 kph (5 mph)\" message displayed in the EVIC. CAUTION! If the vehicle is not taken to the dealership BEFORE reaching 241 km (150 mi) from when the \"Service Diesel Exhaust Fluid (DEF) System See Dealer\" message is displayed, the vehicles speed will be limited to 8 kph (5 mph).** ● Reduced acceleration from turbo. This bulletin involves inspecting and possibly reprogramming the DCU with the latest available software.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029671-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11029671-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11029671"},{"nhtsa_id":11024048,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-10-08","date":"2025-09-30","document_id":"18-020-25 REV. B","mfr_campaign":null,"component":"UNKNOWN OR OTHER","summary":"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):** ● **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. ● 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. ● 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. ● 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. ● 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. ● P24DA - 00 Particulate Matter Sensor Exhaust Sample Error Bank 1. ● P214D - 00 SCR NOX Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. ● P242B - 00 Exhaust Gas Temperature Sensor Circuit High - Bank 1 Sensor 3.** Customers may comment on one or more of the following: ● **Poor cold start performance. ● DEF level gauge slow to update after refill. ● Inverter drops out when shifting from Park to Drive.** ● Check engine light illuminated. ● Cruise control drops out/cancels on its own. ● Engine stumble, runs rough, or a slight lack of power. The following software enhancements are also available: ● **Improved troubleshooting and repair accuracy for air handling components through APT test available in WiTECH.** ● Reduce the occurrence of false faults Diagnostic Trouble Codes (DTCs) P0300 and P0315. ● DTC P1451 re-tune to reduce false faults. ● Improvements to allow DTC P2509 faults to be cleared with wiTECH. ● Adaptive Cruise Control (ACC) software fix to prevent cruise control dropouts. ● Engine stumble fix for improved drivability. ● Engine stall detection allowing DTC P032F to clear after a power cycle. ● Allow multiple PROXI rewrites. ● Enable cold re-prime (DTC P208B improvement). This bulletin involves inspecting and possibly reprogramming the Engine Control Module (ECM/PCM) with the latest available software","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024048-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11024048-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11024048"},{"nhtsa_id":11018486,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-05-20","date":"2025-05-15","document_id":"18-020-25 REV. A","mfr_campaign":null,"component":"POWER TRAIN","summary":"\"Flash: Powertrain Control Module (PCM) Updates Customers may comment on one or more of the following: ● Malfunction Indicator Lamp (MIL) or check engine light illuminated. ● Cruise control drops out/cancels on its own. ● Engine stumble, runs rough, or a slight lack of power. The following software enhancements are also available: ● Reduce the occurrence of false faults Diagnostic Trouble Codes (DTCs) P0300 and P0315. ● DTC P1451 re-tune to reduce false faults. ● Improvements to allow DTC P2509 faults to be cleared with wiTECH. ● Adaptive Cruise Control (ACC) software fix to prevent cruise control dropouts. ● Engine stumble fix for improved drivability ● Engine stall detection allowing DTC P032F to clear after a power cycle. ● Allow multiple PROXI rewrites. ● Enable cold re-prime (DTC P208B improvement) This bulletin involves **inspecting and possibly** reprogramming the Engine Control Module (ECM/PCM) with the latest available software\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018486-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018486-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11018486"},{"nhtsa_id":11017152,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-04-23","date":"2025-04-17","document_id":"18-020-25","mfr_campaign":null,"component":"POWER TRAIN","summary":"\"Flash: Powertrain Control Module (PCM) Updates Customers may comment on one or more of the following: ● Malfunction Indicator Lamp (MIL) or check engine light illuminated. ● Cruise control drops out/cancels on its own. ● Engine stumble, runs rough, or a slight lack of power. The following software enhancements are also available: ● Reduce the occurrence of false faults DTCs P0300 and P0315. ● DTC P1451 retune to reduce false faults. ● Improvements to allow DTC P2509 faults to be cleared with wiTECH. ● Adaptive Cruise Control (ACC) software fix to prevent cruise control dropouts. ● Engine stumble fix for improved drivability ● Engine stall detection allowing DTC P032F to clear after a power cycle. ● Allow multiple PROXI rewrites. ● Enable cold reprime (DTC P208B improvement). This bulletin involves reprogramming the Engine Control Module (ECM/PCM) with the latest available software\"","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11017152-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11017152-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11017152"}],"url":"https://open.wenmarpro.com/makes/ram/2500/2025/bulletins?code=P208B"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/ram/2500/2025/codes/P208B","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}