All Duramax Fault Codes
248 Duramax diesel fault codes. Click any code for causes, diagnostics, severity, and common fixes.
DURAMAX-B0081 critical
Deployment Commanded
DURAMAX-B1001 critical
ECU Defective
DURAMAX-P0087 critical
Fuel Rail / System Pressure Too Low
DURAMAX-P0088 critical
Fuel Rail / System Pressure Too High
DURAMAX-P0217 critical
Engine Coolant Over Temperature Condition
DURAMAX-P0524 critical
Engine Oil Pressure Too Low
DURAMAX-P0601 critical
Internal Control Module Memory Check Sum Error
DURAMAX-P0602 critical
Control Module Programming Error
DURAMAX-P0604 critical
Internal Control Module Random Access Memory Error
DURAMAX-P0605 critical
Internal Control Module Read Only Memory Error
DURAMAX-P0606 critical
ECM/PCM Processor Fault
DURAMAX-P0607 critical
Control Module Performance
DURAMAX-P207F critical
Reductant Quality Performance
DURAMAX-P20EE critical
SCR NOx Catalyst Efficiency Below Threshold Bank 1
DURAMAX-P2428 critical
Exhaust Gas Temperature Too High Bank 1
DURAMAX-P2463 critical
Diesel Particulate Filter Restriction — Soot Accumulation
DURAMAX-P2463_SOOT critical
Diesel Particulate Filter Soot Accumulation — Service Required
DURAMAX-P24A4 critical
Diesel Particulate Filter Restriction — Forced Regeneration Limit Reached
DURAMAX-P2BAC critical
NOx Exceedance — Deactivation of EGR
DURAMAX-C0035 serious
Left Front Wheel Speed Sensor Circuit
DURAMAX-C0040 serious
Right Front Wheel Speed Sensor Circuit
DURAMAX-C0045 serious
Left Rear Wheel Speed Sensor Circuit
DURAMAX-C0050 serious
Right Rear Wheel Speed Sensor Circuit
DURAMAX-P003A serious
Turbocharger Boost Control 'A' Position Exceeded Learning Limit
DURAMAX-P0045 serious
Turbocharger Boost Control A Circuit/Open
DURAMAX-P0046 serious
Turbocharger Boost Control A Circuit Range/Performance
DURAMAX-P0047 serious
Turbocharger Boost Control A Circuit Low
DURAMAX-P0048 serious
Turbocharger Boost Control A Circuit High
DURAMAX-P008A serious
Low Pressure Fuel System Pressure Too Low
DURAMAX-P008B serious
Low Pressure Fuel System Pressure Too High
DURAMAX-P0091 serious
Fuel Pressure Regulator 1 Control Circuit Low
DURAMAX-P0092 serious
Fuel Pressure Regulator 1 Control Circuit High
DURAMAX-P00AF serious
Turbocharger Boost Control 'A' Module Performance
DURAMAX-P0191 serious
Fuel Rail Pressure Sensor A Circuit Range/Performance
DURAMAX-P0192 serious
Fuel Rail Pressure Sensor A Circuit Low Input
DURAMAX-P0193 serious
Fuel Rail Pressure Sensor A Circuit High Input
DURAMAX-P0201 serious
Injector Circuit / Open — Cylinder 1
DURAMAX-P0202 serious
Injector Circuit / Open — Cylinder 2
DURAMAX-P0203 serious
Injector Circuit / Open — Cylinder 3
DURAMAX-P0204 serious
Injector Circuit / Open — Cylinder 4
DURAMAX-P0205 serious
Injector Circuit / Open — Cylinder 5
DURAMAX-P0206 serious
Injector Circuit / Open — Cylinder 6
DURAMAX-P0207 serious
Injector Circuit / Open — Cylinder 7
DURAMAX-P0208 serious
Injector Circuit / Open — Cylinder 8
DURAMAX-P020E serious
Cylinder 2 Injector Circuit Range/Performance
DURAMAX-P0219 serious
Engine Overspeed Condition
DURAMAX-P0219_OVRSPD serious
Engine Overspeed Warning
DURAMAX-P0234 serious
Turbocharger Overboost Condition
DURAMAX-P0251 serious
Injection Pump Fuel Metering Control 'A' (Cam/Rotor/Injector)
DURAMAX-P0263 serious
Cylinder 1 Contribution / Balance Fault
DURAMAX-P0266 serious
Cylinder 2 Contribution / Balance Fault
DURAMAX-P0269 serious
Cylinder 3 Contribution / Balance Fault
DURAMAX-P0272 serious
Cylinder 4 Contribution / Balance Fault
DURAMAX-P0275 serious
Cylinder 5 Contribution / Balance Fault
DURAMAX-P0278 serious
Cylinder 6 Contribution / Balance Fault
DURAMAX-P0281 serious
Cylinder 7 Contribution / Balance Fault
DURAMAX-P0284 serious
Cylinder 8 Contribution / Balance Fault
DURAMAX-P0299 serious
Turbocharger Underboost Condition
DURAMAX-P0300 serious
Random/Multiple Cylinder Misfire Detected
DURAMAX-P0301 serious
Cylinder 1 Misfire Detected
DURAMAX-P0302 serious
Cylinder 2 Misfire Detected
DURAMAX-P0303 serious
Cylinder 3 Misfire Detected
DURAMAX-P0304 serious
Cylinder 4 Misfire Detected
DURAMAX-P0305 serious
Cylinder 5 Misfire Detected
DURAMAX-P0306 serious
Cylinder 6 Misfire Detected
DURAMAX-P0307 serious
Cylinder 7 Misfire Detected
DURAMAX-P0308 serious
Cylinder 8 Misfire Detected
DURAMAX-P0335 serious
Crankshaft Position Sensor A Circuit
DURAMAX-P0336 serious
Crankshaft Position Sensor A Circuit Range/Performance
DURAMAX-P0340 serious
Camshaft Position Sensor A Circuit
DURAMAX-P0341 serious
Camshaft Position Sensor A Circuit Range/Performance
DURAMAX-P0342 serious
Camshaft Position Sensor A Circuit Low
DURAMAX-P0343 serious
Camshaft Position Sensor A Circuit High
DURAMAX-P0420 serious
Catalyst System Efficiency Below Threshold Bank 1
DURAMAX-P0422 serious
Main Catalyst Efficiency Below Threshold Bank 1
DURAMAX-P0430 serious
Catalyst System Efficiency Below Threshold Bank 2
DURAMAX-P0603 serious
Internal Control Module Keep Alive Memory Error
DURAMAX-P0628 serious
Fuel Pump 'A' Control Circuit Low
DURAMAX-P0629 serious
Fuel Pump 'A' Control Circuit High
DURAMAX-P0685 serious
ECM/PCM Power Relay Control Circuit/Open
DURAMAX-P0686 serious
ECM/PCM Power Relay Control Circuit Low
DURAMAX-P0687 serious
ECM/PCM Power Relay Control Circuit High
DURAMAX-P0688 serious
ECM/PCM Power Relay Sense Circuit/Open
DURAMAX-P0689 serious
ECM/PCM Power Relay Sense Circuit Low
DURAMAX-P0690 serious
ECM/PCM Power Relay Sense Circuit High
DURAMAX-P069E serious
Fuel Pump Control Module Requested MIL Illumination
DURAMAX-P0700 serious
Transmission Control System MIL Request
DURAMAX-P0716 serious
Input/Turbine Speed Sensor 'A' Circuit Range/Performance
DURAMAX-P0717 serious
Input/Turbine Speed Sensor 'A' Circuit No Signal
DURAMAX-P0722 serious
Output Speed Sensor No Signal
DURAMAX-P0729 serious
Gear 6 Incorrect Ratio
DURAMAX-P0731 serious
Gear 1 Incorrect Ratio
DURAMAX-P0732 serious
Gear 2 Incorrect Ratio
DURAMAX-P0733 serious
Gear 3 Incorrect Ratio
DURAMAX-P0734 serious
Gear 4 Incorrect Ratio
DURAMAX-P0735 serious
Gear 5 Incorrect Ratio
DURAMAX-P0736 serious
Reverse Incorrect Ratio
DURAMAX-P0741 serious
Torque Converter Clutch Circuit Performance
DURAMAX-P0742 serious
Torque Converter Clutch Stuck On
DURAMAX-P0751 serious
Shift Solenoid 'A' Performance or Stuck Off
DURAMAX-P0752 serious
Shift Solenoid 'A' Stuck On
DURAMAX-P0756 serious
Shift Solenoid 'B' Performance or Stuck Off
DURAMAX-P0757 serious
Shift Solenoid 'B' Stuck On
DURAMAX-P0776 serious
Pressure Control Solenoid 'B' Performance or Stuck Off
DURAMAX-P0777 serious
Pressure Control Solenoid 'B' Stuck On
DURAMAX-P0868 serious
Transmission Fluid Pressure Low
DURAMAX-P0960 serious
Pressure Control Solenoid 'A' Control Circuit/Open
DURAMAX-P0962 serious
Pressure Control Solenoid 'A' Control Circuit Low
DURAMAX-P0963 serious
Pressure Control Solenoid 'A' Control Circuit High
DURAMAX-P0973 serious
Shift Solenoid 'A' Control Circuit Low
DURAMAX-P0974 serious
Shift Solenoid 'A' Control Circuit High
DURAMAX-P1093 serious
Fuel Rail Pressure Low During Power Enrichment
DURAMAX-P1093_LBZ serious
Fuel Rail Pressure Low During Enrichment (LBZ variant)
DURAMAX-P1345 serious
Crankshaft Position — Camshaft Position Correlation
DURAMAX-P2047 serious
Reductant Injector Circuit/Open Bank 1 Unit 1
DURAMAX-P204F serious
Reductant System Performance Bank 1
DURAMAX-P2120 serious
Throttle/Pedal Position Sensor 'D' Circuit
DURAMAX-P2121 serious
Throttle/Pedal Position Sensor 'D' Range/Performance
DURAMAX-P2122 serious
Throttle/Pedal Position Sensor 'D' Circuit Low
DURAMAX-P2123 serious
Throttle/Pedal Position Sensor 'D' Circuit High
DURAMAX-P2125 serious
Throttle/Pedal Position Sensor 'E' Circuit
DURAMAX-P2127 serious
Throttle/Pedal Position Sensor 'E' Circuit Low
DURAMAX-P2128 serious
Throttle/Pedal Position Sensor 'E' Circuit High
DURAMAX-P2135 serious
Throttle/Pedal Position Sensor 'A'/'B' Voltage Correlation
DURAMAX-P2138 serious
Throttle/Pedal Position Sensor 'D'/'E' Voltage Correlation
DURAMAX-P2146 serious
Fuel Injector Group A Supply Voltage Circuit/Open
DURAMAX-P2149 serious
Fuel Injector Group B Supply Voltage Circuit/Open
DURAMAX-P2200 serious
NOx Sensor Circuit Bank 1 Sensor 1
DURAMAX-P2201 serious
NOx Sensor Circuit Range/Performance Bank 1 Sensor 1
DURAMAX-P2202 serious
NOx Sensor Circuit Low Input Bank 1 Sensor 1
DURAMAX-P2203 serious
NOx Sensor Circuit High Input Bank 1 Sensor 1
DURAMAX-P220A serious
NOx Sensor Circuit Bank 1 Sensor 2
DURAMAX-P2263 serious
Turbocharger Boost System Performance
DURAMAX-P226C serious
Turbocharger Boost Control 'A' Slow Response
DURAMAX-P229E serious
NOx Sensor Bank 1 Sensor 2 Circuit
DURAMAX-P242F serious
Diesel Particulate Filter — Ash Accumulation
DURAMAX-P244B serious
Diesel Particulate Filter Differential Pressure Too High
DURAMAX-P2452 serious
Diesel Particulate Filter Pressure Sensor Circuit
DURAMAX-P2453 serious
Diesel Particulate Filter Pressure Sensor A Circuit Range/Performance
DURAMAX-P2459 serious
Diesel Particulate Filter Regeneration Frequency
DURAMAX-P24A2 serious
Diesel Particulate Filter Active / Passive Regeneration Incomplete
DURAMAX-P2510 serious
ECM/PCM Power Relay Sense Circuit Range/Performance
DURAMAX-P2635 serious
Fuel Pump 'A' Low Flow/Performance
DURAMAX-U0073 serious
Control Module Communication Bus A Off
DURAMAX-U0100 serious
Lost Communication with ECM/PCM A
DURAMAX-U0101 serious
Lost Communication with TCM
DURAMAX-U010E serious
Lost Communication with Reductant Control Module
DURAMAX-U0121 serious
Lost Communication with ABS Module
DURAMAX-U029D serious
Lost Communication with NOx Sensor A
DURAMAX-U029E serious
Lost Communication with NOx Sensor B
DURAMAX-P007C moderate
Charge Air Cooler Temperature Sensor Circuit Low
DURAMAX-P007D moderate
Charge Air Cooler Temperature Sensor Circuit High
DURAMAX-P0101 moderate
Mass Air Flow Sensor A Circuit Range/Performance
DURAMAX-P0102 moderate
Mass Air Flow Sensor A Circuit Low Input
DURAMAX-P0103 moderate
Mass Air Flow Sensor A Circuit High Input
DURAMAX-P0112 moderate
Intake Air Temperature Sensor 1 Circuit Low
DURAMAX-P0113 moderate
Intake Air Temperature Sensor 1 Circuit High
DURAMAX-P0116 moderate
Engine Coolant Temperature Sensor 1 Circuit Range/Performance
DURAMAX-P0117 moderate
Engine Coolant Temperature Sensor 1 Circuit Low
DURAMAX-P0118 moderate
Engine Coolant Temperature Sensor 1 Circuit High
DURAMAX-P0128 moderate
Coolant Thermostat Below Regulating Temperature
DURAMAX-P0133 moderate
O2 Sensor Circuit Slow Response Bank 1 Sensor 1
DURAMAX-P0134 moderate
O2 Sensor Circuit No Activity Bank 1 Sensor 1
DURAMAX-P0135 moderate
O2 Sensor Heater Circuit Bank 1 Sensor 1
DURAMAX-P0171 moderate
System Too Lean Bank 1
DURAMAX-P0171_LB7 moderate
System Too Lean (LB7 — post-injection fuel wash)
DURAMAX-P0172 moderate
System Too Rich Bank 1
DURAMAX-P0182 moderate
Fuel Temperature Sensor 'A' Circuit Low
DURAMAX-P0183 moderate
Fuel Temperature Sensor 'A' Circuit High
DURAMAX-P0237 moderate
Turbocharger Boost Sensor A Circuit Low
DURAMAX-P0238 moderate
Turbocharger Boost Sensor A Circuit High
DURAMAX-P0380 moderate
Glow Plug / Heater Circuit 'A' Malfunction
DURAMAX-P0401 moderate
Exhaust Gas Recirculation Flow Insufficient Detected
DURAMAX-P0402 moderate
Exhaust Gas Recirculation Flow Excessive Detected
DURAMAX-P0404 moderate
Exhaust Gas Recirculation Control Circuit Range/Performance
DURAMAX-P0405 moderate
Exhaust Gas Recirculation Sensor A Circuit Low
DURAMAX-P0406 moderate
Exhaust Gas Recirculation Sensor A Circuit High
DURAMAX-P0409 moderate
Exhaust Gas Recirculation Sensor A Circuit
DURAMAX-P0443 moderate
Evaporative Emission System Purge Control Valve Circuit
DURAMAX-P0455 moderate
Evaporative Emission System Leak Detected (Large Leak)
DURAMAX-P0456 moderate
Evaporative Emission System Leak Detected (Small Leak)
DURAMAX-P0471 moderate
Exhaust Pressure Sensor Range/Performance
DURAMAX-P0472 moderate
Exhaust Pressure Sensor Low
DURAMAX-P0473 moderate
Exhaust Pressure Sensor High
DURAMAX-P0489 moderate
Exhaust Gas Recirculation A Control Circuit Low
DURAMAX-P0490 moderate
Exhaust Gas Recirculation A Control Circuit High
DURAMAX-P0500 moderate
Vehicle Speed Sensor A
DURAMAX-P0501 moderate
Vehicle Speed Sensor A Range/Performance
DURAMAX-P0514 moderate
Battery Temperature Sensor Circuit Range/Performance
DURAMAX-P0532 moderate
A/C Refrigerant Pressure Sensor A Circuit Low
DURAMAX-P0533 moderate
A/C Refrigerant Pressure Sensor A Circuit High
DURAMAX-P0545 moderate
Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 1
DURAMAX-P0546 moderate
Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 1
DURAMAX-P0562 moderate
System Voltage Low
DURAMAX-P0563 moderate
System Voltage High
DURAMAX-P0571 moderate
Cruise Control / Brake Switch A Circuit
DURAMAX-P0615 moderate
Starter Relay Circuit
DURAMAX-P0617 moderate
Starter Relay Circuit High
DURAMAX-P0641 moderate
Sensor Reference Voltage 'A' Circuit/Open
DURAMAX-P0642 moderate
Sensor Reference Voltage 'A' Circuit Low
DURAMAX-P0643 moderate
Sensor Reference Voltage 'A' Circuit High
DURAMAX-P0645 moderate
A/C Clutch Relay Control Circuit
DURAMAX-P0651 moderate
Sensor Reference Voltage 'B' Circuit Open
DURAMAX-P0671 moderate
Cylinder 1 Glow Plug Circuit
DURAMAX-P0672 moderate
Cylinder 2 Glow Plug Circuit
DURAMAX-P0673 moderate
Cylinder 3 Glow Plug Circuit
DURAMAX-P0674 moderate
Cylinder 4 Glow Plug Circuit
DURAMAX-P0675 moderate
Cylinder 5 Glow Plug Circuit
DURAMAX-P0676 moderate
Cylinder 6 Glow Plug Circuit
DURAMAX-P0677 moderate
Cylinder 7 Glow Plug Circuit
DURAMAX-P0678 moderate
Cylinder 8 Glow Plug Circuit
DURAMAX-P0683 moderate
Glow Plug Control Module to PCM Communication Circuit
DURAMAX-P0691 moderate
Fan 1 Control Circuit Low
DURAMAX-P0692 moderate
Fan 1 Control Circuit High
DURAMAX-P0712 moderate
Transmission Fluid Temperature Sensor 'A' Circuit Low
DURAMAX-P0713 moderate
Transmission Fluid Temperature Sensor 'A' Circuit High
DURAMAX-P0842 moderate
Transmission Fluid Pressure Sensor/Switch 'A' Low
DURAMAX-P0843 moderate
Transmission Fluid Pressure Sensor/Switch 'A' High
DURAMAX-P202A moderate
Reductant Tank Heater 'A' Circuit Range/Performance
DURAMAX-P203F moderate
Reductant Level Too Low
DURAMAX-P205B moderate
Reductant Tank Temperature Sensor Circuit Range/Performance
DURAMAX-P2080 moderate
Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1
DURAMAX-P2084 moderate
Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2
DURAMAX-P20BA moderate
Reductant Heater 'A' Control Performance
DURAMAX-P2199 moderate
Intake Air Temperature Sensor 1 / 2 Correlation
DURAMAX-P2228 moderate
Barometric Pressure Circuit Low
DURAMAX-P2229 moderate
Barometric Pressure Circuit High
DURAMAX-P2271 moderate
O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2
DURAMAX-P2272 moderate
O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2
DURAMAX-P2282 moderate
Air Leak Between Throttle Body and Intake Valves
DURAMAX-P2336 moderate
Cylinder 1 Above Knock Threshold
DURAMAX-P2337 moderate
Cylinder 2 Above Knock Threshold
DURAMAX-P2338 moderate
Cylinder 3 Above Knock Threshold
DURAMAX-P2339 moderate
Cylinder 4 Above Knock Threshold
DURAMAX-P2340 moderate
Cylinder 5 Above Knock Threshold
DURAMAX-P2341 moderate
Cylinder 6 Above Knock Threshold
DURAMAX-P2342 moderate
Cylinder 7 Above Knock Threshold
DURAMAX-P2343 moderate
Cylinder 8 Above Knock Threshold
DURAMAX-P244A moderate
Diesel Particulate Filter Differential Pressure Too Low
DURAMAX-P245A moderate
EGR Cooler Bypass Control Circuit/Open
DURAMAX-P245C moderate
EGR Cooler Bypass Control Circuit Low
DURAMAX-P2507 moderate
ECM/PCM Power Input Signal Intermittent
DURAMAX-P2509 moderate
ECM/PCM Power Input Signal Intermittent
DURAMAX-P2509_INT moderate
ECM Power Input Signal Intermittent (alt)
DURAMAX-P2533 moderate
Ignition Switch Run/Start Position Circuit
DURAMAX-P2609 moderate
Intake Air Heater System Performance
DURAMAX-P2A00 moderate
O2 Sensor Circuit Range/Performance Bank 1 Sensor 1
DURAMAX-U0140 moderate
Lost Communication with Body Control Module