Engine Control Unit (ECU) Diagnostic Trouble Codes

Although diagnostic codes listed below are not a complete list of diagnostic trouble codes, they do reflect codes which may be observed while operating tractor and have corrective action operator can take. Many codes which appear may be corrected simply by cycling key switch or by following solution on CommandCenter page, then cycling key switch.

If corrective action cannot be taken after cycling power to tractor or if there are any questions, contact your John Deere dealer.

Diagnostic Trouble Code	System	Solution
ECU 000027.03	Engine System	EGR sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000027.04	Engine System	EGR sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000027.07	Engine System	EGR valve not responding or out of adjustment. Engine power limited.
ECU 000051.03	Engine System	Air Throttle valve position sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000051.04	Engine System	Air Throttle valve position sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000051.07	Engine System	Air throttle valve not responding or out of adjustment Engine power limited.
ECU 000051.14	Engine System	EGR system fault. Engine power limited.
ECU 000094.17	Engine System	Fuel pressure low. Check fuel supply and filters.
ECU 000094.18	Engine System	Fuel pressure low. Engine power limited. Check fuel supply and filters.
ECU 000097.16	Engine System	Water Separator full. Engine power limited. Drain Water Separator.
ECU 000100.01	Engine System	Oil pressure low. Engine power limited. Check engine oil level.
ECU 000100.02	Engine System	Oil pressure detected at zero engine speed.
ECU 000100.18	Engine System	Oil pressure low. Engine power limited. Check engine oil level.
ECU 000101.00	Engine System	Crankcase pressure high. Engine power limited. Check Blow-by Filter.
ECU 000101.16	Engine System	Crankcase pressure high. Check Blow-by Filter.
ECU 000102.03	Engine System	Intake manifold pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000102.04	Engine System	Intake manifold pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000102.07	Engine System	Intake manifold pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000103.00	Engine System	Turbocharger speed high. Engine power limited. Reduce engine speed and load.
ECU 000105.00	Engine System	Intake Manifold air temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000105.03	Engine System	Intake manifold air temperature sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000105.04	Engine System	Intake manifold air temperature sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000105.15	Engine System	Intake Manifold air temperature high. Reduce engine speed and load. Check cooling system for debris.
ECU 000105.16	Engine System	Intake Manifold air temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000107.00	Engine System	Engine Air Filter is restricted. Engine power limited. Clean or replace air filter.
ECU 000107.15	Engine System	Engine Air Filter is restricted. Clean or replace air filter.
ECU 000107.16	Engine System	Engine Air Filter is restricted. Engine power limited. Clean or replace air filter.
ECU 000109.01	Engine System	Coolant pressure low. Engine power limited.
ECU 000109.17	Engine System	Coolant pressure Low. Check pressure cap and for leaks in cooling system.
ECU 000109.18	Engine System	Coolant pressure low. Engine power limited. Check pressure cap and for leaks in cooling system.
ECU 000109.31	Engine System	Coolant pressure low. Check pressure cap and for leaks in cooling system.
ECU 000110.00	Engine System	Engine coolant temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000110.15	Engine System	Engine coolant temperature high. Reduce engine speed and load. Check cooling system for debris.
ECU 000110.16	Engine System	Engine coolant Temperature High. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000110.17	Engine System	Engine coolant temperature Low. Check cooling system.
ECU 000111.01	Engine System	Coolant level low. Engine power limited. Add coolant and inspect for leakage.
ECU 000111.07	Engine System	Coolant level circuit fault. Coolant level monitor without function. Verify coolant level.
ECU 000111.17	Engine System	Coolant level below the service switch. Add coolant.
ECU 000111.18	Engine System	Coolant level low. Add coolant and inspect for leakage.
ECU 000157.01	Engine System	Fuel rail pressure extremely low. Engine power limited.
ECU 000157.03	Engine System	Fuel rail pressure sensor circuit fault. Engine power limited.
ECU 000157.04	Engine System	Fuel rail pressure sensor circuit fault. Engine power limited.
ECU 000157.17	Engine System	Fuel rail pressure low during starting. Check fuel level and filters.
ECU 000168.01	Electrical System	Battery voltage low.
ECU 000174.00	Engine System	Fuel temperature high. Engine power limited. Check cooling system for debris.
ECU 000174.16	Engine System	Fuel temperature high. Check cooling system for debris.
ECU 000189.31	Engine System	A condition exists which is causing the engine to derate. Engine speed limited.
ECU 000190.00	Engine System	Engine speed high. Reduce engine speed.
ECU 000237.02	Identification System	vehicle identification numbers do not match between control units. Engine power limited. Restart engine to attempt vehicle recovery.
ECU 000237.13	Identification System	Vehicle identification numbers do not match between control units. Engine speed limited.
ECU 000237.31	Identification System	Vehicle identification fault. Engine speed limited.
ECU 000412.00	Engine System	EGR temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000412.15	Engine System	EGR temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000412.16	Engine System	EGR temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 000628.12	Electrical System	Control unit in programming mode.
ECU 000641.07	Engine System	Turbocharger actuator self calibration error. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000641.13	Engine System	Turbocharger actuator fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 000641.14	Engine System	Turbocharger actuator fault. Obstruction detected.
ECU 000641.16	Engine System	Turbocharger actuator temperature high. Reduce engine speed and load.
ECU 000676.05	Engine System	Glow plug circuit fault. Cold start aid with restricted function.
ECU 000676.06	Engine System	Glow plug circuit fault. Cold start aid with restricted function.
ECU 000676.14	Engine System	Glow plug circuit fault. Cold start aid with restricted function.
ECU 000676.31	Engine System	Glow plug circuit fault. Cold start aid with restricted function.
ECU 000970.31	Immobilizer System	Key authentication or control unit authentication failed. Engine control unit commanded engine shutoff. Check for the correct vehicle key. Restart engine to attempt vehicle recovery.
ECU 001110.31	Engine System	Engine Protection Shutdown.
ECU 001136.00	Engine System	Engine control unit internal temperature high. Engine speed limited.
ECU 001180.00	Engine System	Exhaust temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 001180.16	Engine System	Exhaust temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 001209.03	Engine System	Exhaust pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 001209.04	Engine System	Exhaust pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 001209.07	Engine System	Exhaust pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 001347.01	Engine System	Fuel rail pressure very low. Engine power limited.
ECU 001569.31	Engine System	Engine power derate condition exists. Engine power limited.
ECU 001639.01	Engine System	Engine fan speed low. Check fan drive system.
ECU 001639.18	Engine System	Engine fan speed low. Check fan drive system.
ECU 002630.00	Engine System	Charge Air Cooler temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 002630.15	Engine System	Charge air cooler outlet temperature high. Check cooling system for debris.
ECU 002630.16	Engine System	Charge Air Cooler outlet temperature high. Engine power limited. Reduce engine speed and load. Check cooling system for debris.
ECU 002659.03	Engine System	EGR Delta pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002659.04	Engine System	EGR Delta pressure sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002659.14	Engine System	EGR system flow fault. Engine power limited.
ECU 002659.15	Engine System	EGR system flow fault. Engine power limited.
ECU 002659.17	Engine System	EGR system flow fault. Engine power limited.
ECU 002790.16	Engine System	Turbocharger outlet temperature high. Engine power limited. Reduce engine speed and load.
ECU 002791.07	Engine System	EGR valve position fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002791.13	Engine System	EGR valve position fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002795.03	Engine System	Turbocharger position sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002795.04	Engine System	Turbocharger position sensor circuit fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 002795.07	Engine System	Turbocharger position actuator fault. Engine power limited.
ECU 002795.10	Engine System	Turbocharger position actuator fault. Engine power limited.
ECU 002795.13	Engine System	Turbocharger calibration fault. Engine speed limited.
ECU 002795.31	Engine System	Turbocharger actuator fault. Engine power limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003246.00	Exhaust Filter System	Exhaust Filter Outlet Temperature high. Engine power limited.
ECU 003353.31	Electrical System	Alternator without function. Check for broken drive belt.
ECU 003464.07	Engine System	Air throttle valve not responding or out of adjustment. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003464.13	Engine System	Air throttle valve out of calibration. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003471.03	Exhaust Filter System	Fuel dosing control valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003471.04	Exhaust Filter System	Fuel dosing control valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003471.05	Exhaust Filter System	Fuel dosing control valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003471.07	Exhaust Filter System	Fuel dosing system outlet pressure fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003471.11	Exhaust Filter System	Fuel dosing control valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003480.01	Exhaust Filter System	Fuel dosing inlet pressure fault. Active Exhaust Filter cleaning unavailable.
ECU 003480.03	Exhaust Filter System	Fuel Dosing Pressure sensor circuit fault. Active Exhaust Filter cleaning unavailable.
ECU 003480.04	Exhaust Filter System	Fuel Dosing Pressure sensor circuit fault. Active Exhaust Filter cleaning unavailable.
ECU 003482.03	Exhaust Filter System	Fuel dosing shutoff valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003482.04	Exhaust Filter System	Fuel dosing shutoff valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003482.05	Exhaust Filter System	Fuel dosing shutoff valve circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003482.16	Exhaust Filter System	Fuel Dosing Shutoff valve fault. Active Exhaust Filter cleaning unavailable.
ECU 003511.03	Engine System	Engine control unit sensor supply circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003511.04	Engine System	Engine control unit sensor supply circuit fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003556.16	Exhaust Filter System	Fuel dosing injector fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003556.18	Exhaust Filter System	Fuel dosing injector fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003597.01	Engine System	Engine control unit high voltage fault. Engine speed limited.
ECU 003711.14	Exhaust Filter System	Exhaust Filter inlet temperature not reached. Active Exhaust Filter cleaning unavailable.
ECU 003711.31	Exhaust Filter System	Exhaust Filter inlet temperature not reached. Active Exhaust Filter cleaning unavailable.
ECU 003719.00	Exhaust Filter System	Exhaust Filter restricted. Engine power limited.
ECU 003719.10	Exhaust Filter System	Exhaust Filter restricted. Engine power limited.
ECU 003719.13	Exhaust Filter System	Exhaust Filter system requires service.
ECU 003719.14	Exhaust Filter System	Exhaust Filter restricted. Engine power limited. Initiate service cleaning.
ECU 003719.16	Exhaust Filter System	Exhaust Filter restricted. Engine power limited. Start parked filter cleaning on engine settings page per Operators Manual.
ECU 003720.15	Exhaust Filter System	Ash load in Exhaust Filter is high. Service filter.
ECU 003720.16	Exhaust Filter System	Ash load in Exhaust Filter is high. Service filter.
ECU 003936.00	Exhaust Filter System	Unexpected temperature in Exhaust Filter. Engine power limited.
ECU 003936.15	Exhaust Filter System	Unexpected temperature in exhaust filter. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 003936.16	Exhaust Filter System	Unexpected temperature in exhaust filter. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004077.07	Exhaust Filter System	Fuel dosing system pressure fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004765.12	Exhaust Filter System	Temperature sensor fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004766.12	Exhaust Filter System	Temperature sensor fault. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004766.15	Exhaust Filter System	Unexpected temperature in exhaust filter catalyst. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004766.16	Exhaust Filter System	Exhaust Filter temperature higher than expected. Active Exhaust Filter cleaning unavailable.
ECU 004766.17	Exhaust Filter System	Cleaning system fault. Unable to continue cleaning.
ECU 004766.18	Exhaust Filter System	Cleaning system fault. Unable to continue cleaning.
ECU 004795.13	Exhaust Filter System	Exhaust filter calibration data invalid. Engine speed limited. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 004795.31	Exhaust Filter System	Exhaust Filter missing or severely damaged. Engine power limited.
ECU 005018.00	Exhaust Filter System	Unexpected temperature in Exhaust Filter. Engine power limited.
ECU 005018.15	Exhaust Filter System	Unexpected temperature in exhaust filter. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 005018.16	Exhaust Filter System	Unexpected temperature in exhaust filter. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 005298.01	Exhaust Filter System	Exhaust filter system not operating as expected. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 005298.18	Exhaust Filter System	Exhaust filter system not operating as expected. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 005456.00	Exhaust Filter System	Exhaust filter system not operating as expected. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 005456.01	Exhaust Filter System	Exhaust filter system not operating as expected. Active Exhaust Filter cleaning unavailable. Continued operation will result in loss of machine availability.
ECU 521192.11	Immobilizer System	Key authentication or control unit authentication failed. Engine control unit commanded engine shutoff.
ECU 521214.09	Immobilizer System	Key authentication or control unit authentication failed. Engine control unit commanded engine shutoff.
ECU 521214.14	Immobilizer System	Vehicle identification conflict. Vehicle disabled.