2545 fallt core what is the problem pl reply me message... #1. • Cummins ISX – EGR : Exhaust Gas Recirculation – DPF : Diesel Particulate Filter – VGT :Variable Geometry Turbocharger – SCR : Selective Catalyst Reduction – 24V CONTROLS! From DEF lights to HEST lights, It can all be a little confusing. Inlet 2. When the s-cam cams over, it rotates past the rollers on the brake and wedges the brakes against the drum. The next time the light comes on try removing the positive battery cable. 115 Engine Magnetic Speed/Position Lost Both of Two Signals - Data Erratic, Intermittent, or … 432 satisfied customers. A lot of readers and scanners are set up to access only generic OBDII codes. This fault code can become active for any of the following reasons: Cummins ISX Codes 111-500. Diagnostic Fault Codes For Cummins Engines Applies to Engine Models QSB T2, QSC T2, QSL T2, QSM11, QSX15, QSK19, QSK23, QST30, QSK45/60/78 Note: These fault codes are current at date of publication. See also: Cummins Engine non-EGR Fault Codes. So I removed the egr flex pipe from exhaust manifold to egr cooler started right up. If you run into a cam over brake problem, I know a quick trick to get your brakes freed up. Cummins ISX Codes 111-500 111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component. Cummins engines are popular in everything from the heavy duty class 8 trucks (semi trucks) all the way down to pick-up trucks. Here are all the Cummins ISX codes available for the Cummins ECM. Always refer to engine service manual for the latest information related to engine diagnostics and troubleshooting. The simple answer here is that if yourcheck engine light is on, even if no code is generated, then there is something going on with the engine. To determine the malfunction, you just need to write out the fault code from … Air suspension light is not on. Low Oil Pressure On Cummins ISX Engines>> Check this first. To Read engine codes … For Cummins ISX codes on earlier models (before 2002), use: Cummins ISX Codes (before 2002). The vehicle is emitting emissions which are higher than the Environmental Protection Agency mandates, and that is why the check engine light is on. Home » Fault Codes CUMMINS ISB ISC ISL ISBe ISDe and QSB3.3 CM2150 » SPN 100 - FMI 2 (Fault Code 435) CL. ISC, and ISL with CM2150 - Engine Oil Pressure Circuit: CODES: Fault Code… The only time code can be read is when the check light is on, so I have been told. 2014 peterbilt ISX 2350 or 15, check engine light came on fault code 1239, then went off for a few days came back on, - Answered by a verified Technician. We ship free to U.S. Customers. Excessive brake drum depth and very thin lining of the brakes will cause the brakes to cam over. Triage Tech/Shop Foreman. Cummins ISX engine fault codes; Cummins Engines PDF Service Repair Manuals; Caterpillar C15 Truck Engine B5R Fault Codes List; Cummins Fault Codes list for QSB, QSC, QSL9, QSM11, QSX15, QSK19, QSK23, QST30, QSK45, QSK60, QSK78 engines. These Cummins trouble codes pertain to ISX engines built with the EGR system (2002 & later). Heavy-duty diesel engines should have their piston liners, bearings, and piston rings replaced at 500,000 miles, as well as service of the injection system and any other necessary improvements. Cummins ISX Codes 111-500111 Electronic Control Module Critical Internal Failure - Bad Intelligent Device or Component, 115 Engine Magnetic Speed/Position Lost Both of Two Signals - Data Erratic, Intermittent, or Incorrect, 122 Intake Manifold 1 Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 123 Intake Manifold 1 Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 125 Intake Manifold 1 Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level, 131 Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 132 Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Below Normal or Shorted to Low Source, 133 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 134 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 135 Engine Oil Rifle Pressure 1 Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 141 Engine Oil Rifle Pressure 1 Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 143 Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Moderately Severe Level, 144 Engine Coolant Temperature 1 Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 145 Engine Coolant Temperature 1 Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 146 Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Moderately Severe Level, 151 Engine Coolant Temperature - Data Valid but Above Normal Operational Range - Most Severe Level, 153 Intake Manifold 1 Temperature Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 154 Intake Manifold 1 Temperature Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 155 Intake Manifold 1 Temperature - Data Valid but Above Normal Operational Range - Most Severe Level, 187ism Sensor Supply 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 187isx Sensor Supply 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 195 Coolant Level Sensor 1 Circuit Choice, 195-2wire Coolant Level Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 195-3wire Coolant Level Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 196 Coolant Level Sensor 1 Circuit Choice, 196-2wire Coolant Level Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 196-3wire Coolant Level Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 197 Coolant Level - Data Valid but Below Normal Operational Range - Moderately Severe Level, 212 Engine Oil Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 213 Engine Oil Temperature Sensor 1 Circuit — Voltage Below Normal, or Shorted to Low Source, 214 Engine Oil Temperature High - Data Valid but Above Normal Operational Range - Most Severe Level, 221 Barometric Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 222 Barometric Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 227 Sensor Supply 2 Circuit - Voltage Above Normal, or Shorted to High Source, 234 Engine Crankshaft Speed/Position - Data Valid but Above Normal Operational Range - Most Severe Level, 238 Sensor Supply 3 Circuit - Voltage Below Normal, or Shorted to Low Source, 241 Wheel-Based Vehicle Speed - Data Erratic, Intermittent or Incorrect, 242 Wheel-Based Vehicle Speed Sensor Circuit Tampering Has Been Detected - Abnormal Rate of Change, 245 Fan Control Circuit - Voltage Below Normal or Shorted to Low Source, 249 Ambient Air Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 254 Engine Fuel Shutoff Valve Driver Circuit - Voltage Below Normal, or Shorted to Low Source, 255 Engine Fuel Shutoff Valve Driver Circuit - Voltage Above Normal, or Shorted to High Source, 256 Ambient Air Temperature Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 257 Engine Fuel shutoff Valve Driver - Mechanical System Not Responding Properly or Out of Adjustment, 263 Engine Fuel Temperature Sensor 1 Circuit - Voltage Above Normal, or Shorted to High Source, 265 Engine Fuel Temperature Sensor 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 285 SAE J1939 Multiplexing PGN Timeout Error - Abnormal Update Rate, 286 SAE J1939 Multiplexing Configuration Error - Out of Calibration, 287 SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System - Received Network Data In Error, 288 SAE J1939 Multiplexing Remote Accelerator Pedal or Lever Position Sensor System - Received Network Data In Error, 295 Barometric Pressure - Data Erratic, Intermittent, or Incorrect, 311 Injector Solenoid Driver Cylinder 1 Circuit - Current Above Normal, or Grounded Circuit, 312 Injector Solenoid Driver Cylinder 5 Circuit - Current Above Normal, or Grounded Circuit, 313 Injector Solenoid Driver Cylinder 3 Circuit - Current Above Normal, or Grounded Circuit, 314 Injector Solenoid Driver Cylinder 6 Circuit - Current Above Normal, or Grounded Circuit, 315 Injector Solenoid Driver Cylinder 2 Circuit - Current Above Normal, or Grounded Circuit, 319 Real Time Clock Power Interrupt - Data Erratic, Intermittent, or Incorrect, 321 Injector Solenoid Driver Cylinder 4 Circuit - Current Above Normal, or Grounded Circuit, 322 Injector Solenoid Driver Cylinder 1 Circuit - Current Below Normal, or Open Circuit, 323 Injector Solenoid Driver Cylinder 5 Circuit - Current Below Normal, or Open Circuit, 324 Injector Solenoid Driver Cylinder 3 Circuit - Current Below Normal, or Open Circuit, 325 Injector Solenoid Driver Cylinder 6 Circuit - Current Below Normal, or Open Circuit, 331 Injector Solenoid Driver Cylinder 2 Circuit - Current Below Normal, or Open Circuit, 332 Injector Solenoid Driver Cylinder 4 Circuit - Current Below Normal, or Open Circuit, 338 Idle Shutdown Vehicle Accessories Relay Driver Circuit - Voltage Above Normal, or Shorted to High Source, 339 Idle Shutdown Vehicle Accessories Relay Driver Circuit - Voltage Below Normal, or Shorted to Low Source, 343 Engine Control Module Warning Internal Hardware Failure - Bad Intelligent Device or Component, 346 Engine Control Module Calibration Memory Software - Bad Intelligent Device or Component, 351 Injector Power Supply - Bad Intelligent Device or Component, 352 Sensor Supply 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 386 Sensor Supply 1 Circuit - Voltage Above Normal, or Shorted to High Source, 415 Engine Oil Rifle Pressure - Data Valid but Below Normal Operational Range - Most Severe Level, 418 Water in Fuel Indicator - Data Valid but Above Normal Operational Range - Least Severe Level, 427 SAE J1939 Datalink - Abnormal Update Rate, 428 Water-in-Fuel Indicator Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 429 Water-in-Fuel Indicator Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 435 Engine Oil Rifle Pressure - Data Erratic, Intermittent, or Incorrect, 441 Battery 1 Voltage - Data Valid but Below Normal Operational Range - Moderately Severe Level, 442 Battery 1 Voltage - Data Valid but Above Normal Operational Range - Moderately Severe Level Cummins ISX Codes 500-1000546 Fuel Delivery Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 547 Fuel Delivery Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 555 Crankcase Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 556 Crankcase Pressure — Data Valid but Above Normal Operational Range — Most Severe Level, 584 Starter Relay Driver Circuit - Voltage Above Normal, or Shorted to High Source, 585 Starter Relay Driver Circuit - Voltage Below Normal, or Shorted to Low Source, 596 Electrical Charging System Voltage - Data Valid but Above Normal Operational Range - Moderately Severe Level, 597 Electrical Charging System Voltage - Data Valid but Below Normal Operational Range - Moderately Severe Level, 598 Electrical Charging System Voltage - Data Valid but Below Normal Operational Range - Most Severe Level, 649 Engine Oil Change Interval - Condition Exists, 686 Turbocharger 1 Speed - Data Erratic, Intermittent, or Incorrect, 687 Turbocharger 1 Speed - Data Valid but Below Normal Operational Range - Moderately Severe Level, 689 Engine Crankshaft Speed/Position - Data Erratic, Intermittent, or Incorrect, 689ism Engine Crankshaft Speed/Position - Data Erratic, Intermittent, or Incorrect, 689isx Engine Crankshaft Speed/Position - Data Erratic, Intermittent, or Incorrect, 691 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 692 Turbocharger 1 Compressor Inlet Temperature Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 697 ECM Internal Temperature Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 698 ECM Internal Temperature Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 731 Engine Speed / Position Camshaft and Crankshaft Misalignment - Mechanical System Not Responding Properly or Out of Adjustment, 778 Engine Camshaft Speed/Position Sensor Choice, 778ism Engine Camshaft Speed/Position Sensor - Data Erratic, Intermittent, or Incorrect, 778isx Engine Camshaft Speed/Position Sensor - Data Erratic, Intermittent, or Incorrect, 784 Adaptive Cruise Control Mode - Data Erratic, Intermittent, or Incorrect Cummins ISX Codes 1000-13001117 Power Supply Lost With Ignition On - Data Erratic, Intermittent, or Incorrect, 1239 Accelerator Pedal or Lever Position Sensor 2 Circuit - Voltage Above Normal, or Shorted to High Source, 1241 Accelerator Pedal or Lever Position Sensor 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 1242 Accelerator Pedal or Lever Position Sensor 1 and 2 - Data Erratic, Intermittent, or Incorrect Cummins ISX Codes 1300-17001663 Catalyst Inlet Temperature Sensor Swapped with Outlet - Condition Exists, 1665 Aftertreatment Exhaust Gas Temperature 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 1666 Aftertreatment Exhaust Gas Temperature 1 Circuit - Voltage Above Normal, or Shorted to High Source, 1667 Aftertreatment Exhaust Gas Temperature 1 - Data Erratic, Intermittent, or Incorrect, 1674 Aftertreatment Exhaust Gas Temperature 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 1675 Aftertreatment Exhaust Gas Temperature 2 Circuit - Voltage Above Normal, or Shorted to High Source, 1676 Aftertreatment Exhaust Gas Temperature 2 - Data Erratic, Intermittent, or Incorrect, 1691 Catalyst Efficiency - Out of Calibration, 1695 Sensor Supply 5 - Voltage Above Normal, or Shorted to High Source, 1696 Sensor Supply 5 - Voltage Below Normal, or Shorted to Low Source Cummins ISX Codes 1700-19001843 Crankcase Pressure Circuit - Voltage Above Normal, or Shorted to High Source, 1844 Crankcase Pressure Circuit - Voltage Below Normal, or Shorted to Low Source, 1866 Exhaust Gas Recirculation Valve Delta Pressure - Data Erratic, Intermittent, or Incorrect, 1876 Aftertreatment Exhaust Gas Temperature 3 Circuit - Voltage Above Normal, or Shorted to High Source, 1877 Aftertreatment Exhaust Gas Temperature 3 Circuit - Voltage Below Normal, or Shorted to Low Source, 1878 Aftertreatment Exhaust Gas Temperature 3 - Data Erratic, Intermittent, or Incorrect, 1879 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 1881 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 1883 Aftertreatment Particulate Filter Differential Pressure Sensor - Data Erratic, Intermittent, or Incorrect, 1893 EGR Valve Control Circuit - Abnormal Update Rate, 1895 EGR Valve Controller - Bad Intelligent Device or Component, 1896 EGR Valve Controller - Out of Calibration, 1899 Exhaust Gas Recirculation Valve Delta Pressure - Data Valid but Above Normal Operational Range- Moderately Severe Level Cummins ISX Codes 1900-20001921 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 1922 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Most Severe Level, 1923 Aftertreatment Fuel shutoff Valve 1 Circuit - Voltage Above Normal, or Shorted to High Source, 1924 Aftertreatment Fuel Shutoff Valve 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 1925 Aftertreatment Fuel Shutoff Valve 1 - Data Erratic, Intermittent, or Incorrect, 1926 Aftertreatment Fuel Pressure Sensor - Data Erratic, Intermittent, or Incorrect, 1927 Aftertreatment Fuel Pressure Sensor - Voltage Above Normal, or Shorted to High Source, 1928 Aftertreatment Fuel Pressure Sensor - Voltage Below Normal, or Shorted to Low Source, 1932 Aftertreatment Fuel Injector 1 - Data Erratic, Intermittent, or Incorrect, 1933 ECU Power Output Supply Voltage 2 - Data Valid but Above Normal Operational Range - Moderately Severe Level, 1934 ECU Power Output Supply Voltage 2 - Data Valid but Below Normal Operational Range - Moderately Severe Level, 1935 EGR Actuator Driver Circuit - Root Cause Not Known, 1938 ECU Power Output Supply Voltage 1 - Data Valid but Below Normal Operational Range - Moderately Severe Level, 1942 Crankcase Pressure - Data Erratic, Intermittent, or Incorrect, 1943 Ambient Air Density - Data Valid but Below Normal Operational Range - Least Severe Level, 1961 EGR Valve Control Circuit Calculated Over Temperature - Data Valid but Above Normal Operational Range - Least Severe Level, 1962 VGT Actuator Driver Over Temperature (Calculated - Data Valid but Above Normal Operational Range - Least Severe Level, 1963 Aftertreatment Fuel Shutoff Valve 1 - Mechanical System Not Responding Properly or Out of Adjustment, 1966 Aftertreatment Exhaust Gas Temperature 1 - Data Valid but Above Normal Operational Range - Most Severe Level, 1968 Aftertreatment Exhaust Gas Temperature 2 - Data Valid but Above Normal Operational Range - Moderately Severe Level, 1969 Aftertreatment Exhaust Gas Temperature 2 - Data Valid but Above Normal Operational Range - Most Severe Level, 1972 Aftertreatment Exhaust Gas Temperature 3 - Data Valid but Above Normal Operational Range - Moderately Severe Level, 1973 Aftertreatment Exhaust Gas Temperature 3 - Data Valid but Above Normal Operational Range - Most Severe Level, 1974 Crankcase Pressure - Data Valid but Above Normal Operational Range - Least Severe Level, 1977 Aftertreatment Fuel Injector 1 Circuit - Current Below Normal, or Open Circuit, 1981 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Least Severe Level, 1993 Aftertreatment Particulate Filter Missing - Condition Exists Cummins ISX Codes 2000-22002182 Engine Brake Actuator Driver 1 Circuit - Voltage Above Normal, or Shorted to High Source, 2183 Engine Brake Actuator Driver 1 Circuit - Voltage Below Normal, or Shorted to Low Source, 2185 Sensor Supply 4 Circuit — Voltage Above Normal, or Shorted to High Source, 2186 Sensor Supply 4 Circuit - Voltage Below Normal, or Shorted to Low Source, 2195 Auxiliary Equipment Sensor Input 3 Engine Protection Critical - Special Instructions, 2198 VGT Actuator Driver Circuit - Root Cause Not Known Cummins ISX Codes 2200-24002215 Fuel Pump Delivery Pressure — Data Valid but Below Normal Operational Range — Moderately Severe Level, 2216 Fuel Pump Delivery Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2272 EGR Valve Position Circuit - Voltage Below Normal, or Shorted to Low Source, 2273 Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 2274 Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 2288 Turbocharger 1 Speed - Data Valid but Above Normal Operational Range - Least Severe Level, 2311 Electronic Fuel Injection Control Valve Circuit — Condition Exists, 2312 Timing Actuator Driver Circuit - Condition Exists, 2313 Fuel Control Valve Solenoid Driver 2 Circuit - Condition Exists, 2314 Engine Timing Actuator Driver 2 Circuit Error - Condition Exists, 2321 Engine Crankshaft Speed/Position — Data Erratic, Intermittent, or Incorrect, 2322 Engine Camshaft Speed/Position Sensor — Data Erratic, Intermittent, or Incorrect, 2345 Turbocharger 1 Speed - Abnormal Rate of Change, 2346 Turbocharger Turbine Inlet Temperature (Calculated - Data Valid but Above Normal Operational Range - Least Severe Level, 2347 Turbocharger Compressor Outlet Temperature (Calculated - Data Valid but Above Normal Operational Range - Least Severe Level, 2349 EGR Valve Control Circuit - Current Below Normal, or Open Circuit, 2351 EGR Valve Control Circuit - Voltage Below Normal, or Shorted to Low Source, 2357 EGR Valve Control Circuit - Mechanical System Not Responding Properly or Out of Adjustment, 2359 Exhaust Gas Recirculation Valve Delta Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2363 Engine Brake Actuator Driver Output 2 Circuit Choice, 2363ism Engine Brake Actuator Driver Output 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 2363isx Engine Brake Actuator Driver Output 2 Circuit - Voltage Below Normal, or Shorted to Low Source, 2365 Engine Brake Actuator Driver Output 3 Circuit - Voltage Below Normal, or Shorted to Low Source, 2367 Engine Brake Actuator Driver Output 2 Circuit Choice, 2367ism Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal, or Shorted to High Source, 2367isx Engine Brake Actuator Driver Output 2 Circuit - Voltage Above Normal, or Shorted to High Source, 2368 Engine Brake Actuator Driver Output 3 Circuit - Voltage Above Normal, or Shorted to High Source, 2372 Fuel Filter Differential Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2373 Exhaust Gas Pressure Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 2374 Exhaust Gas Pressure Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 2375 Exhaust Gas Recirculation Temperature Sensor Circuit - Voltage Above Normal, or Shorted to High Source, 2376 Exhaust Gas Recirculation Temperature Sensor Circuit - Voltage Below Normal, or Shorted to Low Source, 2377 Fan Control Circuit — Voltage Above Normal, or Shorted to High Source, 2387 VGT Actuator Driver Circuit (Motor - Mechanical System Not Responding Properly, or Out of Adjustment Cummins ISX Codes 2400-26002412 Fan Speed - Data Erratic, Intermittent, or Incorrect, 2448 Coolant Level - Data Valid but Below Normal Operational Range - Least Severe Level, 2449 VGT Actuator Controller - Out of Calibration, 2451 Turbocharger Turbine Inlet Temperature (Calculated - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2551 Injector Metering Rail 2 Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2552 Injector Metering Rail 1 Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2554 Exhaust Gas Pressure - Data Erratic, Intermittent, or Incorrect Cummins ISX Codes 2600-28002634 VGT Actuator Controller - Bad Intelligent Device or Component, 2635 VGT Actuator Driver Circuit - Condition Exists, 2636 VGT Actuator Driver Circuit - Abnormal Update Rate, 2637 Catalyst Face Plugged - Root Cause Not Known, 2638 Catalyst Efficiency - Out of Calibration, 2639 Aftertreatment Particulate Filter Differential Pressure - Data Valid but Above Normal Operational Range - Least Severe Level, 2646 Engine Coolant Temperature - Condition Exists, 2659 Engine Coolant Temperature - Condition Exists, 2728 Aftertreatment Fuel Injector 1 - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2732 Aftertreatment Fuel Drain Valve Circuit - Voltage Above Normal or Shorted to High Source, 2733 Aftertreatment Fuel Drain Valve Circuit - Voltage Below Normal or Shorted to Low Source, 2738 Start Enable Device 1 Circuit (Ether Injection - Voltage Above Normal or Shorted to High Source, 2739 Start Enable Device 1 Circuit (Ether Injection - Voltage Below Normal or Shorted to Low Source, 2741 Aftertreatment Fuel Shutoff Valve 1 Swapped - Condition Exists, 2742 Aftertreatment Exhaust Gas Temperature 2 - Data Valid but Below Normal Operational Range - Least Severe Level, 2743 Aftertreatment Exhaust Gas Temperature 2 - Data Valid but Below Normal Operational Range - Moderately Severe Level, 2754 Engine Particulate Filter Inlet Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2764 Exhaust Gas Pressure - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2774 Engine Exhaust Gas Recirculation (EGR System - Condition Exists, 2777 Particulate Trap Active Regeneration Inhibited Due to Inhibit Switch - Condition Exists, 2789 Engine Coolant Temperature - Data Valid but Below Normal Operational Range - Moderately Severe Level Cummins ISX Codes 2800-30002813 EGR Valve Control - Special Instructions, 2878 Aftertreatment Fuel Drain Valve - Mechanical System Not Responding Properly or Out of Adjustment, 2879 Aftertreatment Fuel Drain Valve - Data Erratic, Intermittent, or Incorrect, 2881 Aftertreatment Fuel Pressure Sensor - Data Valid but Below Normal Operational Range - Least Severe Level, 2961 Exhaust Gas Recirculation Temperature - Data Valid but Above Normal Operational Range - Least Severe Level, 2962 Exhaust Gas Recirculation Temperature - Data Valid but Above Normal Operational Range - Moderately Severe Level, 2963 Engine Coolant Temperature — Data Valid but Above Normal Operational Range — Least Severe Level, 2964 Intake Manifold 1 Temperature — Data Valid but Above Normal Operational Range — Least Severe Level, 2973 Intake Manifold 1 Pressure - Data Erratic, Intermittent, or Incorrect. 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Popular in everything from the drop down list above CL Blog.Teknisi on Cummins ISX codes ( before 2002 ) Control! Low pressure at the sensor experience on our website and very thin lining the. By Cummins t have your own scan tool, take the truck to a.!