{"vehicle":{"id":"2015_ram_3500","year":2015,"make":"Ram","model":"3500"},"code":"P0304","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":6,"bulletins":[{"nhtsa_id":10228032,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-12-19","date":"2022-04-08","document_id":"1807622","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); FUEL SYSTEM, GASOLINE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; FUEL SYSTEM, DIESEL; SERVICE BRAKES, HYDRAULIC; BACK OVER PREVENTION","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain ControlModule (ECM/PCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation a technician may find one or more of thefollowing DTCs have been set: P064F - Unauthorized Software/Calibration Detected. P202E - (Diesel Exhaust Fluid) Reductant Injector Performance. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P1C55 - NOx Sensor Intermittent ? Bank 1 Sensor 1. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P020A - Fuel Injector 1 Performance. P020B - Fuel Injector 2 Performance. P020C - Fuel Injector 3 Performance. P020D - Fuel Injector 4 Performance. P020E - Fuel Injector 5 Performance. P020F - Fuel Injector 6 Performance. U0001 - Can C Bus. P1451 - Diesel Particulate Filter System Performance. P229E - NOx Sensor Circuit - Bank 1 Sensor 2. P218F - Reductant No Flow Detected. P242F - Diesel Particulate Filter Restriction - Ash Accumulation. P205E - (Diesel Exhaust Fluid) Reductant Tank Temperature Sensor CircuitIntermittent (setting when the block heater is plugged in). U110E - Lost Ambient Temperature Message. P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. P2281 - Air Leak Between MAF And Throttle Body. P1477 - Intake Air Diverter Valve Position Sensor Circuit Shorted To Ground. U1421 - Implausible Ignition Key Off Time Received. P026B - Injection Timing Performance. In addition, the following software enhancements are also available: A/C pressure sensor update. Improvements made to reduce misfire. wiTECH engine cooling fan actuation test update. Improved Exhaust Gas Recirculation (EGR) valve response. Over Running Clutch (ORC) software improvement. Unpleasantodor in the vehicle at low speeds during regeneration cycle.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10228032-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10228032-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10228032"},{"nhtsa_id":10226271,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-11-21","date":"2016-06-04","document_id":"1806216","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P0335 - Crankshaft Position Sensor Circuit. · P0456 - EVAP System Small Leak. · P2610 - PCM Internal Engine Off Timer Performance.** · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P0305 - Cylinder 5 Misfire. · P0306 - Cylinder 6 Misfire. · P0307 - Cylinder 7 Misfire. · P0308 - Cylinder 8 Misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10226271-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10226271-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10226271"},{"nhtsa_id":10221492,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-06-18","document_id":"1810722REVA","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find oneor more of the following Diagnostic Trouble Codes (DTCs): P0335 - Crankshaft Position Sensor Circuit. P0456 - EVAP System Small Leak. P2610 - PCM Internal Engine Off Timer Performance. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P0307 - Cylinder 7 Misfire. P0308 - Cylinder 8 Misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221492-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221492-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221492"},{"nhtsa_id":10221473,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-06-03","document_id":"1810722","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); FUEL SYSTEM, GASOLINE","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. The customer may describe extended engine cranking or starting times when the Compressed Natural Gas (CNG) tank level is low(DJ only) (Sales Code EZF only).Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigationthe technician may find one or more of the following Diagnostic Trouble Codes (DTCs)P0335 - Crankshaft Position Sensor Circuit. P0456 - EVAP System Small Leak. P2610 - PCM Internal Engine Off Timer Performance. P0300 - Multiple Cylinder Misfire. P0301 - Cylinder 1 Misfire. P0302 - Cylinder 2 Misfire. P0303 - Cylinder 3 Misfire. P0304 - Cylinder 4 Misfire. P0305 - Cylinder 5 Misfire. P0306 - Cylinder 6 Misfire. P0307 - Cylinder 7 Misfire. P0308 - Cylinder 8 Misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221473-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221473-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221473"},{"nhtsa_id":10148657,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-11-19","date":"2015-09-03","document_id":"18-055-15","mfr_campaign":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM","summary":"MIL Illuminates On Rough Roads This bulletin involves reprogramming the Powertrain Control Module (PCM) with updated software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination while driving on rough roads. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: ? P0300 - Multiple Cylinder Misfire ? P0301 - Cylinder 1 Misfire ? P0302 - Cylinder 2 Misfire ? P0303 - Cylinder 3 Misfire ? P0304 - Cylinder 4 Misfire ? P0305 - Cylinder 5 Misfire ? P0306 - Cylinder 6 Misfire ? P0307 - Cylinder 7 Misfire ? P0308 - Cylinder 8 Misfire","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148657-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10148657-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10148657"},{"nhtsa_id":10137057,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-21","date":"2016-06-04","document_id":"18-062-16","mfr_campaign":null,"component":"POWER TRAIN; ENGINE AND ENGINE COOLING","summary":"Flash: Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: · **P0335 - Crankshaft Position Sensor Circuit. · P0456 - EVAP System Small Leak. · P2610 - PCM Internal Engine Off Timer Performance.** · P0300 - Multiple Cylinder Misfire. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P0305 - Cylinder 5 Misfire. · P0306 - Cylinder 6 Misfire. · P0307 - Cylinder 7 Misfire. · P0308 - Cylinder 8 Misfire.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10137057-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10137057-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10137057"}],"url":"https://open.wenmarpro.com/makes/ram/3500/2015/bulletins?code=P0304"},"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/3500/2015/codes/P0304","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."]}