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.
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 |
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.
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.
- Liquid Crystal Display.
- Turn signal or hazard lights are on.
- High-beams are on.
- Master system warning indicator – stop engine and get service.
- Trailer indicator.
- Fuel level indicator.
- Electrical charge warning indicator.
- Engine warning indicator.
- Tachometer.
- Fuel gauge.
- Coolant temperature gauge.
- 4WD indicator if this is lit, 4WD is engaged.
- Bi-speed turn indicator – The 4WD indicator and Bi-speed turn indicator come on when the system is in Bi-speed turn mode.
- 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.
- 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.
- Parked regeneration indicator – When the parked regeneration indicator starts flashing, the parked regeneration can also be started.
- 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.
- 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.
- 3-P. Lifting / Lowering indicator – turns on when the 3-point hitch is in use.
- Draft indicator – comes on when the draft control is selected and goes of when position control is selected.
- PTO clutch indicator – The PTO clutch indicator comes on while PTO clutch control switch is on.
- 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.
- 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.
- Parking brake warning indicator – your parking brake is engaged.
- Heater indicator – your heater is on.
- 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:
- 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.
- 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.
- Turn Off the Engine: Ensure the tractor’s engine is turned off, and the key is in the off position.
- 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.
- 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.
- 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.
- 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.
- Turn Off the Ignition: Once the error codes have been cleared, turn off the tractor’s ignition.
- Wait a Moment: Some tractors may require a brief moment of key-off time for the codes to reset properly.
- 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.