Kubota Tractor Error Codes (DTC Fault Errors)

Kubota Tractor Error Codes, often referred to as DTC Fault Errors, are a vital aspect of modern tractor diagnostics. These codes serve as a form of communication between the tractor and its operator, highlighting potential problems within the machinery. By deciphering these error codes, tractor owners and technicians can quickly identify issues, enabling timely and accurate troubleshooting.

Kubota Tractor Error Codes (DTC Fault Errors)

In this comprehensive guide, we’ll delve into the realm of Kubota Tractor Error Codes, exploring their significance, common codes, and what they mean for tractor operators and mechanics alike.

List of Kubota Tractor DTC Error Codes

Understanding these codes is not just about maintaining your tractor’s health; it’s about ensuring your work continues smoothly, whether you’re plowing fields, landscaping, or tending to any other critical task. So, let’s decode the language of Kubota Tractor Error Codes to keep your work on track.

Kubota DTC Code Tractor Detection Item
P0016 Crankshaft position sensor (NE) – cylinder recognition sensor (G) phase gap
P0087 Pressure limiter opening abnormality
P0088 High rail pressure abnormality
P0089 SCV stuck
P0093 Fuel leak
P0112 Intake air temperature sensor abnormality
P0113
P0117 Coolant temperature sensor abnormality
P0118
P0182 Fuel temperature sensor abnormality
P0183
P0192 Rail pressure sensor abnormality
P0193
P0200 Overcharge
P0201 TWV 1 actuation system open circuit
P0202 TWV 2 actuation system open circuit
P0203 TWV 3 actuation system open circuit
P0204 TWV 4 actuation system open circuit
P0217 Overheat
P0219 Overrun
P0237 Intake air pressure sensor abnormality
P0238
P0263 Non-injection abnormality (rotational fluctuation abnormality)
P0266
P0269
P0272
P0335 Crankshaft position sensor (NE sensor) abnormality
P0336
P0340 Cylinder Recognition Sensor (G sensor) abnormality
P0341
P0380 Air heater relay actuation abnormality (optional specifications)
P0380
P0400 EGR feedback abnormality
P0404 EGR DC motor estimated temperature abnormality
P0405 EGR lift sensor abnormality
P0406
P0501 Vehicle speed sensor abnormality
P0503
P0561 Battery voltage abnormality
P0562
P0563
P0602 QR abnormality
P0605 ECU Flash – ROM abnormality
P0606 CPU abnormality
P0611 Low charge
P0616 Starter switch abnormality
P0617
P0628 SCV abnormality
P0629
P0642 Sensor voltage 1 abnormality
P0643
P0652 Sensor voltage 2 abnormality
P0653
P0687 Main relay abnormality
P1274 Pump protection failure flag
P1275 Pump replacement failure flag
P2122 Accelerator position sensor 1 abnormality
P2123
P2127 Accelerator position sensor 2 abnormality
P2128
P2146 Common 1 system open circuit
P2147 Common 1 TWV actuation system ground short
P2148 Common 1 TWV actuation system +B short
P2149 Common 2 system open circuit
P2227 Atmospheric pressure sensor abnormality
P2228
P2229

Kubota Tractor Engine Error Codes

Whether you’re a seasoned tractor operator or new to the world of agriculture and farming machinery, understanding Kubota tractor engine error codes is a valuable skill. It can help keep your tractor running smoothly, minimize downtime, and ensure optimal performance, all while potentially saving on costly repairs.

So, let’s embark on a journey through the world of Kubota Tractor Engine Error Codes, demystifying the language of your tractor’s diagnostics and empowering you to keep your equipment in prime working condition.

DTC Fault Code 108 111 112
Name MAP IAT IAT
DTC Name MAP high pressure IAT Higher Than Expected Stage 1 IAT Low Voltage
J1939 SPN 106 105 105
FMI 16 15 4
MIL ON OFF OFF
Detected Item • Sensor/wiring harness short to

power

• Sensor malfunction

• Intake air temperature abnormality

(High side stage 1)

• Sensor / wiring harness short to

ground

• Sensor malfunction

DTC Set Preconditions • Engine Cranking or Running • Engine Running • Engine Running
DTC Set Conditions • MAP pressure > 110.3 kPa [abs]

(1.125 kgf/cm2, 16.00 psia)

• and TPS < 3.0 % • and RPM > 1000 min-1 (rpm)

• rum-time wait for all IAT HiExp

faults 0.0 sec

• IAT > 71 degC (160 degF)

• and RPM > 1000 min-1 (rpm)

• IAT voltage < 0.100 V
Period for Judgment or Number of Occurrence for Judgment • 2 sec • 60 sec • 1 sec
System Action • AL Disable KC

• Power derate 1

• AL Disable

• Power derate 1

• AL Disable

• Power derate 1

Engine Warning Light ON ON ON
DTC Fault Code 113 116 117
Name IAT ECT/CHT ECT/CHT
DTC Name IAT High Voltage ECT Higher Than Expected Stage 1 ECT/CHT Low Voltage
J1939 SPN 105 110 110
FMI 3 15 4
MIL OFF OFF OFF
Detected Item • Sensor/wiring harness open/short

to power

• Sensor malfunction

• Engine coolant temperature

abnormality (High side stage 1)

• Sensor/wiring harness short to

ground

• Sensor malfunction

DTC Set Preconditions • Engine Running • Engine Running • Engine Running
DTC Set Conditions • IAT voltage > 4.90 V • run time wait for ECT HiExp faults

30.0 sec

• ECT > 110 degC (230 degF)

• and RPM > 600 min-1 (rpm)

• ECT voltage < 0.100 V
Period for Judgment or Number of Occurrence for Judgment • 1 sec • 20 sec • 1 sec
System Action • AL Disable

• Power derate 1

• AL Disable

• Power derate 1

• AL Disable

• Power derate 1

Engine Warning Light ON ON ON
DTC Fault Code 118 121 122
Name ECT/CHT TPS TPS
DTC Name ECT/CHT High Voltage TPS1 % Lower Than TPS2 % TPS1 Signal Voltage Low
J1939 SPN 110 51 51
FMI 3 1 4
MIL OFF ON ON
Detected Item • Sensor/wiring harness open/short

to power

• Sensor malfunction

• TPS malfunction • TPS circuit in the harness short to

ground

• TPS malfunction

DTC Set Preconditions • Engine Running • Key-On, Engine Cranking, or

Running

• Key-On, Engine Cranking, or

Running

DTC Set Conditions • ECT voltage > 4.90 V • (TPS1 %TPS2 %) < 20.0 % • TPS1 voltage < 0.200 V
Period for Judgment or Number of Occurrence for Judgment • 1 sec • 1 sec • 0.5 sec
System Action • AL Disable

• Power derate 1

• Shutdown • Shutdown
Engine Warning Light ON ON ON
DTC Fault Code 123 127 129
Name TPS IAT IAT
DTC Name TPS1 Signal Voltage High IAT Higher Than Expected Stage 2 BP Low Pressure
J1939 SPN 51 105 108
FMI 3 0 1
MIL ON OFF ON
Detected Item • TPS circuit in the harness short to

power

• TPS malfunction

• Intake air temperature abnormality

(High side stage 2)

• Sensor out of calibration

• Loss for 5V reference feed

• (5V_ext1) to MAP

• Signal wire open or shorted to

ground

DTC Set Preconditions • Key-On, Engine Cranking, or

Running

• Engine Running • Engine Running
DTC Set Conditions • TPS1 voltage > 4.80 V • rum-time wait for all IAT HiExp

faults 0.0 sec

• IAT > 93 degC (200 degF)

• and RPM > 1000 min-1 (rpm)

• BP < 57.2 kPa [abs]

(0.584 kgf/cm2, 8.30 psia)

Period for Judgment or Number of Occurrence for Judgment • 0.5 sec • 120 sec • 1 sec
System Action • Shutdown • AL Disable

• Force idle

• AL Disable KC
Engine Warning Light ON ON ON
DTC Fault Code 134 154 171
Name EGO Sensors EGO Sensors Adaptive Learn
DTC Name EGO1 Open/Lazy (HO2S1) EGO2 Open/Lazy (HO2S2) Adaptive Learn Bank 1 High (Gasoline)
J1939 SPN 3217 3227 4237
FMI 5 5 0
MIL ON ON ON
Detected Item • Open feed circuit to O2 heater

• Open heater ground circuit

• Open or shorted to ground O2

signal wire

• open sensor ground (5Vrtn1)

• inoperative sensor

• Open feed circuit to O2 heater

• Open heater ground circuit

• Open or shorted to ground O2

signal wire

• open sensor ground (5Vrtn1)

• inoperative sensor

• exhaust leaks upstream or near the

HEGO sensor

• reduced fuel supply pressure to the

fuel injection system

• a inoperative sensor

• an injector that is stuck closed or

dirty

• weak spark or lack of spark to a

cylinder

• a MAP sensor that indicates pressure that is lower than ture pressure

DTC Set Preconditions • Engine Running • Engine Running • Engine Running, Adaptive Mode
DTC Set Conditions • EGO cold persistently > 120.0 sec • EGO cold persistently > 120.0 sec • AL_BM > 30 %
• and RPM >= 0 min-1 (rpm)
• and RPM <= 9999 min-1 (rpm)
• and MAP >= 0.0 kPa [abs]
(0.0 kgf/cm2, 0.0 psia)
• and MAP <= 682 kPa [abs]
(6.96 kgf/cm2, 99.0 psia)
Period for Judgment or Number of Occurrence for Judgment • 5 sec • 5 sec • 3 updates
System Action • CL Disable

• AL Disable KC

• CL Disable

• AL Disable KC

• CL Disable

• AL Disable KC

Engine Warning Light ON ON ON

Full List of Kubota Tractor Engine Error Codes (108 – 2310)

Kubota tractors are renowned for their reliability and performance, but like any complex machinery, they can encounter issues from time to time. When a problem arises, Kubota tractors are equipped with advanced diagnostic systems that can pinpoint the issue and provide valuable information through Engine Error Codes, also known as Diagnostic Trouble Codes (DTCs). These codes are your tractor’s way of communicating what’s wrong, making it easier for owners and technicians to diagnose and resolve problems efficiently.

Kubota Dashboard Lights / Symbols

Kubota tractors, like many modern vehicles and machinery, come equipped with a dashboard that features various lights and symbols. These dashboard indicators serve as a vital communication tool between your tractor and you, the operator. Understanding what each Kubota dash light or symbol means is crucial for safe and efficient tractor operation.

In this guide, we’ll provide you with comprehensive information about the most common Kubota dash lights and symbols, decoding their meanings and actions to take when they illuminate.

Kubota Tractor Dash Lights and Symbols

Whether you’re a seasoned Kubota tractor operator or new to these machines, this resource will help you navigate your tractor’s dashboard with confidence, ensuring that you respond appropriately to any indications provided by the system.

  1. Liquid Crystal Display.
  2. Turn signal or hazard lights are on.
  3. High-beams are on.
  4. Master system warning indicator – stop engine and get service.
  5. Trailer indicator.
  6. Fuel level indicator.
  7. Electrical charge warning indicator.
  8. Engine warning indicator.
  9. Tachometer.
  10. Fuel gauge.
  11. Coolant temperature gauge.
  12. 4WD indicator if this is lit, 4WD is engaged.
  13. Bi-speed turn indicator – The 4WD indicator and Bi-speed turn indicator come on when the system is in Bi-speed turn mode.
  14. Rear wheel differential lock indicator – When you step on the differential lock pedal, this light comes on. It will go off when you release the pedal.
  15. Regeneration indicator – When you press the auto regeneration switch, this light comes on. When the regeneration indicator starts flashing, it means a specific amount of PM has built up in the DPF. Keep working – the regeneration process is automatic.
  16. Parked regeneration indicator – When the parked regeneration indicator starts flashing, the parked regeneration can also be started.
  17. Engine RPM increase indicator – If the engine RPM increase indicator starts flashing, keep on working and increase the engine rpm until the indicator turns off to meet the requirements for regeneration.
  18. Constant RPM management indicator – If regeneration fails, this indicator light and the parked regeneration indicator will start flashing. Stop working and begin the parked regeneration process. The engine warning indicator remains constantly “ON,” stop working immediately, turn the engine off, and have the tractor serviced before resuming use.
  19. 3-P. Lifting / Lowering indicator – turns on when the 3-point hitch is in use.
  20. Draft indicator – comes on when the draft control is selected and goes of when position control is selected.
  21. PTO clutch indicator – The PTO clutch indicator comes on while PTO clutch control switch is on.
  22. Engine oil pressure warning indicator – If the oil pressure in the engine falls below normal level, the warning indicator will come on. If this happens during operation, and it does not go off when the engine is accelerated to more than 1000 rpm, check engine oil level. Add oil or have the oil changed as necessary.
  23. Air cleaner indicator – If the air cleaner is clogged, the warning indicator will come on. The air cleaner element should be cleaned every 100 hours of use.
  24. Parking brake warning indicator – your parking brake is engaged.
  25. Heater indicator – your heater is on.
  26. Front suspension indicator – when the front suspension switch is in the “ON” or “AUTO LOCK” position, the suspension indicator light comes on.

From engine-related warnings to reminders about essential maintenance tasks, Kubota dash lights and symbols are designed to keep you informed and your tractor running smoothly. Explore our guide to become well-versed in the language of your Kubota tractor’s dashboard and make informed decisions about its operation and maintenance.

How To Reset Kubota Error Codes?

Resetting Kubota tractor error codes, also known as Diagnostic Trouble Codes (DTCs), can sometimes be necessary to clear a fault and get your tractor back to normal operation.

However, please note that resetting DTCs should only be done after the underlying issue has been identified and resolved. Resetting codes without addressing the problem may lead to further issues or potential safety hazards.

Here are the general steps to reset Kubota tractor error codes:

  1. Identify the Issue: Before attempting to reset any error codes, it’s crucial to understand why the code was triggered in the first place. Check the operator’s manual or consult with a qualified technician to determine the nature of the problem.
  2. Address the Problem: Resolve the underlying issue causing the error code. This might involve repairing or replacing faulty components, adjusting settings, or performing routine maintenance.
  3. Turn Off the Engine: Ensure the tractor’s engine is turned off, and the key is in the off position.
  4. Locate the Diagnostic Connector: Depending on your Kubota tractor model, the diagnostic connector may be located in different areas. Common locations include under the dashboard, near the engine, or within the engine compartment. Refer to your tractor’s manual to find the exact location.
  5. Use Diagnostic Tool (Optional): Some Kubota tractors may require a diagnostic tool to reset error codes. If your tractor model requires this tool, connect it to the diagnostic port according to the manufacturer’s instructions.
  6. Turn the Key to the “On” Position: Without starting the engine, turn the tractor’s ignition key to the “On” position. This usually means the position just before the engine cranks.
  7. Read and Clear the Codes: If you’re using a diagnostic tool, follow its prompts to read and clear the error codes. Most modern diagnostic tools have an option to erase codes. If you’re not using a tool, you may need to follow a specific sequence of actions like pumping the accelerator pedal or pressing certain buttons on the dashboard. Refer to your tractor’s manual for guidance.
  8. Turn Off the Ignition: Once the error codes have been cleared, turn off the tractor’s ignition.
  9. Wait a Moment: Some tractors may require a brief moment of key-off time for the codes to reset properly.
  10. Restart the Engine: After a brief pause, start the tractor’s engine. Ensure that the error code no longer appears on the display or instrument panel.

Remember that not all Kubota tractor models and error codes are the same, so always consult your tractor’s manual for specific instructions related to your equipment. If you’re unsure or unable to resolve an error code, it’s best to contact a Kubota service technician or dealer for professional assistance.

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