
Komatsu -8 Series Excavator Fault Codes: Your Complete Guide - June 14, 2025

Click here to purchase online on Taobao
Welcome to your comprehensive guide for Komatsu -8 series excavator fault codes. This resource is specifically designed for models 200LC-8, 210LC-8, and 240LC-8, providing you with detailed information to help diagnose and resolve potential issues quickly. Understanding these codes is crucial for maintaining the efficiency and uptime of your Komatsu machinery.
Komatsu -8 Series Fault Code Table
| Code | Description | English Translation |
|---|---|---|
| 989L00 | 发动机控制器锁紧警告1 | Engine Controller Lock Warning 1 |
| 989M00 | 发动机控制器锁紧警告2 | Engine Controller Lock Warning 2 |
| 989N00 | 发动机控制器锁紧警告3 | Engine Controller Lock Warning 3 |
| AA10NX | 空气滤清器堵塞MON | Air Cleaner Clogging MON |
| AB00KE | 充电电压低MON | Charging Voltage Low MON |
| B@BAZG | 机油压力低 | Engine Oil Pressure Low |
| B@BAZK | 机油油位低MON | Engine Oil Level Low MON |
| B@BCNS | 发动机冷却水过热 | Engine Coolant Overheat |
| B@BCZK | 发动机冷却水水位低 | Engine Coolant Level Low |
| B@HANS | 液压油过热 | Hydraulic Oil Overheat |
| E10 CA111 | EMC临界内部故障 | EMC Critical Internal Failure |
| E10 CA115 | 发动机Ne和Bkup速度传感器故障 | Engine Ne and Bkup Speed Sensor Failure |
| E11 CA122 | 充气压力传感器高压故障 | Intake Manifold Pressure Sensor High Pressure Failure |
| E11 CA123 | 充气压力传感器低压故障 | Intake Manifold Pressure Sensor Low Pressure Failure |
| E14 CA131 | 油门传感器高压故障 | Throttle Position Sensor High Voltage Failure |
| E14 CA132 | 油门传感器低压故障 | Throttle Position Sensor Low Voltage Failure |
| E15 CA144 | 冷却液温度传感器高压故障 | Coolant Temperature Sensor High Voltage Failure |
| E15 CA145 | 冷却液温度传感器低压故障 | Coolant Temperature Sensor Low Voltage Failure |
| E15 CA153 | 充气温度传感器高压故障 | Intake Manifold Temperature Sensor High Voltage Failure |
| E15 CA154 | 充气温度传感器低压故障 | Intake Manifold Temperature Sensor Low Voltage Failure |
| E11 CA155 | 充气温度高速下降 | Intake Manifold Temperature High Rate of Decrease |
| E15 CA187 | 传感器电源2电压低故障 | Sensor Power Supply 2 Voltage Low Failure |
| E11 CA221 | 环境压力传感器高压故障 | Atmospheric Pressure Sensor High Voltage Failure |
| E11 CA222 | 环境压力传感器低压故障 | Atmospheric Pressure Sensor Low Voltage Failure |
| E15 CA227 | 传感器电源2电压高故障 | Sensor Power Supply 2 Voltage High Failure |
| CA234 | 发动机超速ENG | Engine Overspeed ENG |
| E15 CA238 | Ne速度传感器电源电压故障 | Ne Speed Sensor Power Supply Voltage Failure |
| E10 CA271 | IMV/PCV1短路故障 | IMV/PCV1 Short Circuit Failure |
| E10 CA272 | IMV/PCV1开路故障 | IMV/PCV1 Open Circuit Failure |
| E11 CA322 | 喷油器#1(L#1)开路/短路故障 | Injector #1 (L#1) Open/Short Circuit Failure |
| E11 CA323 | 喷油器#5(L#5)开路/短路故障 | Injector #5 (L#5) Open/Short Circuit Failure |
| E11 CA324 | 喷油器#3(L#3)开路/短路故障 | Injector #3 (L#3) Open/Short Circuit Failure |
| E11 CA325 | 喷油器#6(L#6)开路/短路故障 | Injector #6 (L#6) Open/Short Circuit Failure |
| E11 CA331 | 喷油器#2(L#2)开路/短路故障 | Injector #2 (L#2) Open/Short Circuit Failure |
| E11 CA332 | 喷油器#4(L#4)开路/短路故障 | Injector #4 (L#4) Open/Short Circuit Failure |
| E10 CA342 | 校准代码不兼容 | Calibration Code Incompatible |
| E10 CA351 | 喷油器驱动电路故障 | Injector Drive Circuit Failure |
| E15 CA352 | 传感器电源1电压低故障 | Sensor Power Supply 1 Voltage Low Failure |
| E15 CA386 | 传感器电源1电压高故障 | Sensor Power Supply 1 Voltage High Failure |
| E15 CA428 | 燃油中水传感器高压故障 | Water in Fuel Sensor High Voltage Failure |
| E15 CA429 | 燃油中水传感器低压故障 | Water in Fuel Sensor Low Voltage Failure |
| E15 CA435 | 机油压力开关故障 | Engine Oil Pressure Switch Failure |
| E10 CA441 | 蓄电池电压低故障 | Battery Voltage Low Failure |
| E10 CA442 | 蓄电池电压高故障 | Battery Voltage High Failure |
| E11 CA449 | 油槽压力高故障 | Rail Pressure High Failure |
| E11 CA451 | 油槽压力传感器高压故障 | Rail Pressure Sensor High Voltage Failure |
| E11 CA452 | 油槽压力传感器低压故障 | Rail Pressure Sensor Low Voltage Failure |
| E11 CA488 | 充气温度高,扭矩下降 | Intake Manifold Temperature High, Torque Down |
| E15 CA553 | 油槽压力高故障 | Rail Pressure High Failure |
| E15 CA559 | 油槽压力低故障 | Rail Pressure Low Failure |
| E15 CA689 | 发动机Ne转速传感器故障 | Engine Ne Speed Sensor Failure |
| E15 CA731 | 发动机Bkup转速传感器相位故障 | Engine Bkup Speed Sensor Phase Failure |
| E10 CA757 | 所有连续数据丢失故障 | All Continuous Data Lost Failure |
| E15 CA778 | 发动机Bkup传感器故障 | Engine Bkup Sensor Failure |
| E0E CA1633 | KOMNET链接超时故障 | KOMNET Link Timeout Failure |
| E14 CA2185 | 油门传感器电源电压高故障 | Throttle Position Sensor Power Supply Voltage High Failure |
| E14 CA2186 | 油门传感器电源电压低故障 | Throttle Position Sensor Power Supply Voltage Low Failure |
| E11 CA2249 | 油槽压力低故障 | Rail Pressure Low Failure |
| E11 CA2311 | IMV电磁线圈故障 | IMV Solenoid Coil Failure |
| E15 CA2555 | 栅极Htr继电器电压高故障 | Grid Htr Relay Voltage High Failure |
| E15 CA2556 | 栅极Htr继电器电压故障 | Grid Htr Relay Voltage Failure |
| E01 D19JKZ | 人员代码继电器异常 | Personnel Code Relay Abnormality |
| D862KA | GPS天线断路MON2 | GPS Antenna Open Circuit MON2 |
| E0E DA22KK | 泵电磁线圈电源低压故障 | Pump Solenoid Coil Power Supply Low Voltage Failure |
| DA25KP | 5V传感器1电源异常PUMP | 5V Sensor 1 Power Supply Abnormality PUMP |
| DA29KQ | 型号选择异常PUMP | Model Selection Abnormality PUMP |
| E0E DA2RMC | CAN断路(检测的泵连接) | CAN Open Circuit (Pump Connection Detected) |
| DAFGMC | GPS模块故障MON2 | GPS Module Failure MON2 |
| E0E DAFRMC | CAN断路(检测的监控器) | CAN Open Circuit (Monitor Detected) |
| DGH2KB | 液压油传感器短路PUMP | Hydraulic Oil Sensor Short Circuit PUMP |
| DHPAMA | F泵压力传感器异常PUMP | F Pump Pressure Sensor Abnormality PUMP |
| DHPBMA | R泵压力传感器异常PUMP | R Pump Pressure Sensor Abnormality PUMP |
| DHS3MA | 斗杆收回PPC压力传感器异常PUMP | Arm Retract PPC Pressure Sensor Abnormality PUMP |
| DHS4MA | 铲斗挖掘PPC压力传感器异常PUMP | Bucket Dig PPC Pressure Sensor Abnormality PUMP |
| DHS8MA | 动臂提升PPC压力传感器异常PUMP | Boom Raise PPC Pressure Sensor Abnormality PUMP |
| DHSAMA | 右回转PPC压力传感器异常PUMP | Right Swing PPC Pressure Sensor Abnormality PUMP |
| DHSBMA | 左回转PPC压力传感器异常PUMP | Left Swing PPC Pressure Sensor Abnormality PUMP |
| DHSDMA | 铲斗卸载PPC压力传感器异常PUMP | Bucket Dump PPC Pressure Sensor Abnormality PUMP |
| DHX1MA | 过载传感器异常(模拟)PUMP | Overload Sensor Abnormality (Analog) PUMP |
| DW43KA | 行走速度电磁线圈断路PUMP | Travel Speed Solenoid Coil Open Circuit PUMP |
| DW43KB | 行走速度电磁线圈短路PUMP | Travel Speed Solenoid Coil Short Circuit PUMP |
| E03 DW45KA | 行走模式电磁线圈断路PUMP | Travel Mode Solenoid Coil Open Circuit PUMP |
| E03 DW45KB | 行走模式电磁线圈短路PUMP | Travel Mode Solenoid Coil Short Circuit PUMP |
| DW91KA | 行走接合电磁线圈断路PUMP | Travel Engage Solenoid Coil Open Circuit PUMP |
| DW91KB | 行走接合电磁线圈短路PUMP | Travel Engage Solenoid Coil Short Circuit PUMP |
| DWA2KA | 备用电磁线圈断路PUMP | Spare Solenoid Coil Open Circuit PUMP |
| DWA2KB | 备用电磁线圈短路PUMP | Spare Solenoid Coil Short Circuit PUMP |
| DWK0KA | 2级溢流电磁线圈断路PUMP | Secondary Relief Solenoid Coil Open Circuit PUMP |
| DWK0KB | 2级溢流电磁线圈短路PUMP | Secondary Relief Solenoid Coil Short Circuit PUMP |
| E02 DXA8KA | PC-EPC(F)电磁线圈断路PUMP | PC-EPC (Front) Solenoid Coil Open Circuit PUMP |
| E02 DXA8KB | PC-EPC(F)电磁线圈短路 | PC-EPC (Front) Solenoid Coil Short Circuit |
| E02 DXA9KA | PC-EPC(R)电磁线圈断路 | PC-EPC (Rear) Solenoid Coil Open Circuit |
| E02 DXA9KB | PC-EPC(R)电磁线圈短路 | PC-EPC (Rear) Solenoid Coil Short Circuit |
| DXE0KA | LS-EPC电磁线圈断路 | LS-EPC Solenoid Coil Open Circuit |
| DXE0KB | LS-EPC电磁线圈短路 | LS-EPC Solenoid Coil Short Circuit |
| DXE4KA | 备用电流EPC断路PUMP | Spare Current EPC Open Circuit PUMP |
| DXE4KB | 备用电流EPC短路PUMP | Spare Current EPC Short Circuit PUMP |
| DXE5KA | 合流-分流器主电磁线圈断路PUMP | Flow-Divider/Combiner Main Solenoid Coil Open Circuit PUMP |
| DXE5KB | 合流-分流器主电磁线圈短路PUMP | Flow-Divider/Combiner Main Solenoid Coil Short Circuit PUMP |
| DXE6KA | 合流-分流器LS电磁线圈断路PUMP | Flow-Divider/Combiner LS Solenoid Coil Open Circuit PUMP |
| DXE6KB | 合流-分流器LS电磁线圈短路PUMP | Flow-Divider/Combiner LS Solenoid Coil Short Circuit PUMP |
| DY20KA | 雨刷器工作异常PUMP | Wiper Operation Abnormality PUMP |
| DY20MA | 雨刷器停放异常PUMP | Wiper Parking Abnormality PUMP |
| DY2CKA | 洗涤器驱动断路PUMP | Washer Driver Open Circuit PUMP |
| DY2CKB | 洗涤器驱动短路PUMP | Washer Driver Short Circuit PUMP |
| DY2DKB | 雨刷器驱动(正向)短路PUMP | Wiper Driver (Forward) Short Circuit PUMP |
| DY2EKB | 雨刷器驱动(反向)短路PUMP | Wiper Driver (Reverse) Short Circuit PUMP |
Understanding these fault codes is the first step in ensuring your Komatsu excavator operates at peak performance. Regular maintenance and prompt attention to these warnings can significantly extend the lifespan of your machinery and prevent costly downtime. At Growshine International, we understand the importance of keeping your equipment running smoothly.
Your Trusted Partner for Engineering Machinery Parts
Growshine International is a leading import and export company specializing in high-quality parts for engineering machinery, heavy trucks, agricultural machinery, and automobiles. We are committed to providing our clients with reliable and durable components to meet their diverse needs. Whether you require parts for routine maintenance or critical repairs, Growshine International is your trusted source.
Explore Our Wide Range of Products
In addition to providing comprehensive resources like this fault code guide, Growshine International offers an extensive catalog of parts, including:
Excavator Parts: Hydraulic pumps, final drives, swing motors, engine components, filters, and more.
Heavy Truck Parts: Engine parts, transmission components, brake systems, suspension parts, and electrical components.
Agricultural Machinery Parts: Tractor parts, harvester components, planter parts, and irrigation system components.
Auto Parts: Engine parts, brake pads, filters, spark plugs, and more.
Key Long-Tail Keywords for Your Search:
Komatsu 200LC-8 engine problems
Troubleshooting Komatsu 210LC-8 errors
Komatsu 240LC-8 hydraulic system failure
989L00 Komatsu error code meaning
CA115 fault on Komatsu excavator
How to fix low charging voltage on Komatsu
Engine oil pressure low warning Komatsu
Komatsu engine coolant overheat issue
Hydraulic oil overheat Komatsu 210LC-8
Diagnosing Komatsu injector failure
Battery voltage low error Komatsu 200LC-8
Finding parts for Komatsu -8 series
Importing excavator parts to [Your Region]
Reliable supplier of heavy truck parts
Agricultural machinery components export
Wholesale auto parts distributor
Best quality Komatsu excavator parts
Cost-effective heavy equipment parts
Durable agricultural machinery spares
Genuine Komatsu parts online
Understanding Essential Machinery Parts
Hydraulic Pump
The hydraulic pump is the heart of the hydraulic system in excavators and many other types of machinery. It converts mechanical power into hydraulic power, which is then used to drive hydraulic cylinders and motors. In a Komatsu 200LC-8, the hydraulic pump is crucial for the operation of the boom, arm, bucket, and swing functions.
液压泵: 液压泵是挖掘机和许多其他类型机械液压系统的核心。它将机械能转化为液压能,然后用于驱动液压缸和马达。在小松200LC-8中,液压泵对于动臂、斗杆、铲斗和回转功能的运行至关重要。
Гидравлический насос: Гидравлический насос является сердцем гидравлической системы в экскаваторах и многих других типах машин. Он преобразует механическую энергию в гидравлическую, которая затем используется для привода гидравлических цилиндров и моторов. В Komatsu 200LC-8 гидравлический насос имеет решающее значение для работы стрелы, рукояти, ковша и поворота.
Final Drive
The final drive is a gear reduction mechanism that transmits power from the hydraulic motor to the tracks or wheels of a machine, providing the necessary torque for movement. For example, the Komatsu 210LC-8 uses a robust final drive to ensure efficient and powerful locomotion on various terrains.
终传动: 终传动是一种齿轮减速机构,将动力从液压马达传递到机器的履带或车轮,提供运动所需的扭矩。例如,小松210LC-8使用坚固的终传动装置,以确保在各种地形上高效且强大的移动。
Бортовой редуктор: Бортовой редуктор - это механизм снижения передачи, который передает мощность от гидравлического мотора к гусеницам или колесам машины, обеспечивая необходимый крутящий момент для движения. Например, Komatsu 210LC-8 использует надежный бортовой редуктор для обеспечения эффективного и мощного передвижения по различным типам местности.
Engine Controller
The engine controller, also known as the Engine Control Unit (ECU), is an electronic control unit that manages various aspects of the engine's operation, such as fuel injection, ignition timing, and idle speed. Warnings related to the engine controller lock, like those listed (989L00, 989M00, 989N00), indicate potential issues with this critical component in models like the Komatsu 240LC-8.
发动机控制器: 发动机控制器,也称为发动机控制单元 (ECU),是一种电子控制单元,用于管理发动机运行的各个方面,例如燃油喷射、点火正时和怠速。与发动机控制器锁止相关的警告,如列出的代码 (989L00, 989M00, 989N00),表明小松240LC-8等型号的这一关键部件可能存在问题。
Контроллер двигателя: Контроллер двигателя, также известный как электронный блок управления двигателем (ECU), представляет собой электронный блок управления, который управляет различными аспектами работы двигателя, такими как впрыск топлива, момент зажигания и частота вращения холостого хода. Предупреждения, связанные с блокировкой контроллера двигателя, такие как перечисленные (989L00, 989M00, 989N00), указывают на потенциальные проблемы с этим критически важным компонентом в таких моделях, как Komatsu 240LC-8.
Air Cleaner
The air cleaner is a vital component that filters the air drawn into the engine, preventing dust, dirt, and other contaminants from causing damage. A blocked air cleaner, indicated by code AA10NX, can reduce engine performance and efficiency in all Komatsu -8 series excavators.
空气滤清器: 空气滤清器是一个至关重要的部件,用于过滤吸入发动机的空气,防止灰尘、污垢和其他污染物造成损坏。代码AA10NX指示空气滤清器堵塞,这会降低所有小松-8系列挖掘机的发动机性能和效率。
Воздушный фильтр: Воздушный фильтр является жизненно важным компонентом, который фильтрует воздух, поступающий в двигатель, предотвращая попадание пыли, грязи и других загрязнений, которые могут вызвать повреждение. Засорение воздушного фильтра, о чем свидетельствует код AA10NX, может снизить производительность и эффективность двигателя во всех экскаваторах серии Komatsu -8.
Throttle Position Sensor
The throttle position sensor monitors the position of the throttle pedal, providing crucial input to the engine control unit to regulate engine speed and power output. Fault codes like CA131 and CA132 indicate issues with the throttle position sensor in Komatsu excavators, potentially affecting responsiveness and performance.
油门位置传感器: 油门位置传感器监控油门踏板的位置,为发动机控制单元提供关键输入,以调节发动机转速和功率输出。CA131和CA132等故障代码表明小松挖掘机的油门位置传感器存在问题,可能会影响响应性和性能。
Датчик положения дроссельной заслонки: Датчик положения дроссельной заслонки контролирует положение педали акселератора, предоставляя важную информацию в блок управления двигателем для регулирования скорости вращения и выходной мощности. Коды ошибок, такие как CA131 и CA132, указывают на проблемы с датчиком положения дроссельной заслонки в экскаваторах Komatsu, что может повлиять на отзывчивость и производительность.
Engine Coolant Temperature Sensor
The engine coolant temperature sensor measures the temperature of the engine's coolant, providing vital data to prevent overheating. Codes like CA144 and CA145 signal potential malfunctions of this sensor in Komatsu 200LC-8 models, which could lead to serious engine damage if not addressed.
发动机冷却液温度传感器: 发动机冷却液温度传感器测量发动机冷却液的温度,提供重要数据以防止过热。CA144和CA145等代码表明小松200LC-8型号的此传感器可能发生故障,如果不及时处理,可能会导致严重的发动机损坏。
Датчик температуры охлаждающей жидкости двигателя: Датчик температуры охлаждающей жидкости двигателя измеряет температуру охлаждающей жидкости двигателя, предоставляя важные данные для предотвращения перегрева. Коды, такие как CA144 и CA145, указывают на возможные неисправности этого датчика в моделях Komatsu 200LC-8, которые могут привести к серьезному повреждению двигателя, если их не устранить.
Injector
Injectors are critical components in modern diesel engines, responsible for delivering precise amounts of fuel into the combustion chamber at the correct time. Fault codes such as CA322, CA323, CA324, CA325, CA331, and CA332 indicate open or short circuit issues with specific injectors in Komatsu 210LC-8 excavators, which can cause poor engine performance, misfiring, or increased fuel consumption.
喷油器: 喷油器是现代柴油发动机中的关键部件,负责在正确的时间将精确量的燃油输送到燃烧室。CA322、CA323、CA324、CA325、CA331和CA332等故障代码表明小松210LC-8挖掘机中特定喷油器存在开路或短路问题,这可能导致发动机性能下降、失火或燃油消耗增加。
Форсунка: Форсунки являются критически важными компонентами современных дизельных двигателей, отвечающими за подачу точного количества топлива в камеру сгорания в нужное время. Коды ошибок, такие как CA322, CA323, CA324, CA325, CA331 и CA332, указывают на проблемы с обрывом или коротким замыканием конкретных форсунок в экскаваторах Komatsu 210LC-8, что может привести к снижению производительности двигателя, перебоям в работе или увеличению расхода топлива.
Battery
The battery provides the electrical power to start the engine and operate the electrical systems of the machinery. Fault codes CA441 and CA442 indicate low or high battery voltage in Komatsu 240LC-8 excavators, which can prevent the machine from starting or cause damage to electrical components.
蓄电池: 蓄电池为启动发动机和运行机械的电气系统提供电力。故障代码CA441和CA442表示小松240LC-8挖掘机的蓄电池电压过低或过高,这可能会阻止机器启动或损坏电气组件。
Аккумулятор: Аккумулятор обеспечивает электроэнергией для запуска двигателя и работы электрических систем машины. Коды ошибок CA441 и CA442 указывают на низкое или высокое напряжение аккумулятора в экскаваторах Komatsu 240LC-8, что может привести к невозможности запуска машины или повреждению электрических компонентов.
Solenoid Coil
A solenoid coil is an electromagnetic component used in various hydraulic and control systems to actuate valves or mechanisms. Fault codes like DA22KK, DW43KA, DW43KB, etc., often indicate issues with specific solenoid coils in the pump system of Komatsu excavators, affecting hydraulic functions such as travel speed and pressure control.
电磁线圈: 电磁线圈是一种电磁组件,用于各种液压和控制系统中,以驱动阀门或机构。DA22KK、DW43KA、DW43KB等故障代码通常表明小松挖掘机泵系统中特定电磁线圈存在问题,影响行走速度和压力控制等液压功能。
Электромагнитная катушка: Электромагнитная катушка - это электромагнитный компонент, используемый в различных гидравлических и управляющих системах для приведения в действие клапанов или механизмов. Коды ошибок, такие как DA22KK, DW43KA, DW43KB и т. д., часто указывают на проблемы с конкретными электромагнитными катушками в насосной системе экскаваторов Komatsu, что влияет на гидравлические функции, такие как скорость передвижения и регулирование давления.
Pressure Sensor
A pressure sensor measures the pressure within different systems of the machinery, providing critical data for monitoring and control. Fault codes such as CA122, CA123, DHPAMA, DHPBMA, etc., indicate abnormalities in various pressure sensors related to the engine and hydraulic pump in Komatsu excavators, which can affect overall performance and safety.
压力传感器: 压力传感器测量机械不同系统内的压力,为监控和控制提供关键数据。CA122、CA123、DHPAMA、DHPBMA等故障代码表明小松挖掘机发动机和液压泵相关的各种压力传感器存在异常,这会影响整体性能和安全性。
Датчик давления: Датчик давления измеряет давление в различных системах машины, предоставляя важные данные для мониторинга и управления. Коды ошибок, такие как CA122, CA123, DHPAMA, DHPBMA и т. д., указывают на отклонения в работе различных датчиков давления, связанных с двигателем и гидравлическим насосом в экскаваторах Komatsu, что может повлиять на общую производительность и безопасность.
Looking for Reliable Machinery Parts? Contact Us!
At Growshine International, we are dedicated to providing top-quality engineering machinery parts and exceptional customer service. If you encounter any of these fault codes or need assistance in sourcing the right components for your Komatsu -8 series excavator or any other machinery, please do not hesitate to contact our experienced team. We are here to support your business with reliable parts and efficient solutions.
Our main products include:
Engineering Machinery Parts
Heavy Truck Parts
Agricultural Machinery Parts
Auto Parts
Growshine International - Your Global Partner
We facilitate seamless import and export of machinery parts worldwide. Our extensive network and deep industry knowledge ensure that you receive the best products at competitive prices. Partner with Growshine International for all your engineering machinery, heavy truck, agricultural, and automotive part needs.
For inquiries and orders, please visit our website or contact us directly. We look forward to serving you!
Operated by 广数供应链(CGSC)团队提供运营方案