Comprehensive Guide to Excavator Fault Codes: Volvo, Komatsu, Hyundai & Kobelco - June 14, 2025
Excavator Fault Codes
| Brand | Fault Code | Code Meaning | 代码含义 |
|---|---|---|---|
| Volvo | PPID1121 MA9107 - 12 | Power boost solenoid valve, unit or component faulty | 动力增压电磁阀，单元或元件有故障 |
| Volvo | PPID112 MA9105 – 12 | Flow combine solenoid valve (boom / arm), defective unit component or component | 汇流关闭电磁阀（大臂 / 小臂），失灵的单元组件或元件 |
| Volvo | PPID1123MA9113 - 12 | Hydraulic oil cooler fan solenoid valve, unit or component has a problem | 液压油冷却器风扇电磁阀，单元或元件有问题 |
| Volvo | PPID1133 SW2701 - 03 | Engine speed control switch, high voltage | 发动机速度控制开关，高电压 |
| Volvo | PPID1134 SW9101 – 03 | Flow control switch, high voltage | 流控制开关，高电压 |
| Volvo | SW9101 - 04 | Flow control switch, low voltage | 流控制开关，低电压 |
| Volvo | PPID1156 SE9105 – 00 | Hydraulic oil temperature sensor, too high | 液压油温度传感器，过高 |
| Volvo | PPID1190 ER31 - 03 | Power shift proportional valve, high voltage | 动力变档比例阀，高电压 |
| Volvo | PPID1191 ER32 – 03 | Flow control proportional valve, high voltage | 流控制比例阀，高电压 |
| Volvo | SID231 ER13 – 09 | Communication J1939, communication failure | 通讯 J1939，通讯故障 |
| Volvo | SID240 2 ER11 - 02 | V-ECU controller, intermittent or incorrect data | V-ECU 控制器，断续的或不正确的数据 |
| Volvo | SID250 ER14 - 09 | Communication J1587, communication failure | 通讯 J1587，通讯故障 |
| Volvo | SID2 ER21 - 00 | Battery voltage (V-ECU input power voltage), over high voltage | 电池电压（V－ECU 输入功率电压），过高电压 |
| Volvo | SID253 ER11 - 02 | V-ECU controller, intermittent or incorrect data | V-ECU 控制器，断续的或不正确的数据 |
| Volvo | PID45 3 RE2501 - 03 | Intake preheating relay, high voltage | 进气预热继电器，高电压 |
| Volvo | PID94 0 ER49 - 00 | Fuel supply pressure sensor, below limit pressure | 燃油供应压力传感器，低于限制压力 |
| Volvo | PID100 1 ER45 - 01 | Engine oil pressure sensor, too low | 发动机机油压力传感器，太低 |
| Volvo | PID102 3 ER44- 03 | Boost pressure sensor, high voltage | 增压压力传感器，高电压 |
| Volvo | PID105 3 ER42 - 03 | Boost temperature sensor, high voltage | 增压温度传感器，高电压 |
| Volvo | PID107 0 ER4A- 00 | Air intake filter pressure drop sensor, pressure drop too much | 空气进气滤清器压力降低传感器，压力下降太多 |
| Komatsu | E01 | Automatic mode system in HYPER system | HYPER 系统中的自动方式系统 |
| Komatsu | E02 | PC-EPC system | PC-EPC 系统 |
| Komatsu | E03 | Swing parking brake system | 回转停车制动系统 |
| Komatsu | E05 | Governor motor system | 调速器电机系统 |
| Komatsu | E06+CALL | EPC solenoid valve drive system in HYPER system | HYPER 系统中的 EPC 电磁阀驱动系统 |
| Komatsu | E09 | HYPER-GX system shutdown. CALL, HYPER joystick and EPC solenoid valve drive system | HYPER-GX 系统关闭。CALL、HYPER 操纵杆和 EPC 电磁阀驱动系统 |
| Komatsu | E101 | Failure history record abnormality | 故障历史记录异常 |
| Komatsu | E102 | Clock data abnormality | 时钟数据异常 |
| Komatsu | E103 | Buzzer output short circuit, buzzer drive harness in contact with 24V power line | 蜂鸣器输出短路，蜂鸣器驱动线束与 24V 电源线接触 |
| Komatsu | E104 | Air filter clogging | 空气滤清器堵塞 |
| Komatsu | E108 | Water temperature above 105℃ | 水温在 105℃以上 |
| Komatsu | E112 | Wiper motor drive forward rotation system short circuit (new model) | 雨刮器电机驱动正转系统短路（新款） |
| Komatsu | E113 | Wiper motor drive reverse rotation system short circuit (new model) | 雨刮器电机驱动反转系统短路（新款） |
| Komatsu | E14 | Feedback system abnormality | 反馈系统异常 |
| Komatsu | E15 | Engine sensor (water temperature, fuel pressure, oil pressure) failure | 发动机传感器（水温、燃油压力、机油压力）故障 |
| Komatsu | EOE | Network failure | 网络故障 |
| Komatsu | 989L00 | Engine controller lock warning (mode 1) | 发动机控制器锁定警告（模式 1） |
| Komatsu | 989M00 | Engine controller lock warning (mode 2) | 发动机控制器锁定警告（模式 2） |
| Komatsu | 989N00 | Engine controller lock warning (mode 3) | 发动机控制器锁定警告（模式 3） |
| Komatsu | CA115 | Engine speed sensor and backup speed sensor failure | 发动机转速传感器和备用转速传感器故障 |
| Komatsu | CA122 | Intake pressure sensor feedback voltage too high failure | 进气压力传感器反馈电压过高故障 |
| Komatsu | CA131 | Throttle dial sensor feedback voltage high failure | 油门盘传感器反馈电压高故障 |
| Komatsu | CA144 | Coolant temperature sensor feedback voltage too high failure | 冷却液温度传感器反馈电压过高故障 |
| Komatsu | CA153 | Intake temperature sensor feedback voltage too high failure | 进气温度传感器反馈电压过高故障 |
| Komatsu | CA155 | Intake air temperature too high (exceeds limit value) | 进气温度过高（超过极限值） |
| Komatsu | CA187 | Sensor power 2 voltage too high failure | 传感器电源 2 电压过高故障 |
| Komatsu | CA221 | Ambient pressure sensor feedback voltage too high failure | 环境压力传感器反馈电压过高故障 |
| Komatsu | CA234 | Engine overspeed | 发动机超速 |
| Komatsu | CA238 | Speed sensor power supply voltage failure | 转速传感器电源电压故障 |
| Komatsu | CA271 | IMV/PCV1 Short circuit | IMV/PCV1 短路 |
| Komatsu | CA272 | IMV/PCV1 Open circuit | IMV/PCV1 断路 |
| Hyundai | 1013 | Hydraulic oil temperature sensor circuit - voltage above normal or shorted to high voltage | 液压油温度传感器线路—电压高于正常值或短接至高电压 |
| Hyundai | 4 | Hydraulic oil temperature sensor circuit - voltage below normal or shorted to low voltage | 液压油温度传感器线路—电压低于正常值或短接至低电压 |
| Hyundai | 1050 | Work device (idle) pressure sensor data above normal | 工作装置（怠速）压力传感器数据高于正常值 |
| Hyundai | 1 | Work device (idle) pressure sensor data below normal | 工作装置（怠速）压力传感器数据低于正常值 |
| Hyundai | 2 | Work device (idle) pressure sensor data error | 工作装置（怠速）压力传感器数据错误 |
| Hyundai | 1080 | Travel (idle) pressure sensor data above normal | 行走（怠速）压力传感器数据高于正常值 |
| Hyundai | 1200 | Main pump (P1 pump) pressure sensor data above normal | 主泵（P1 泵）压力传感器数据高于正常值 |
| Hyundai | 1210 | Main pump (P2 pump) pressure sensor data above normal | 主泵（P2 泵）压力传感器数据高于正常值 |
| Hyundai | 1220 | Overload pressure sensor data above normal | 过载压力传感器数据高于正常值 |
| Hyundai | 1230 | Negative feedback pressure sensor 1 data above normal | 负反馈压力传感器 1 数据高于正常值 |
| Hyundai | 1240 | Negative feedback pressure sensor 2 data above normal | 负反馈压力传感器 2 数据高于正常值 |
| Hyundai | 1250 | Pilot pump (P3 pump) pressure sensor data above normal | 先导泵（P3 泵）压力传感器数据高于正常值 |
| Hyundai | 1270 | Boom up pilot pressure sensor data above normal | 大臂上升先导压力传感器数据高于正常值 |
| Kobelco | P2228 | Atmospheric pressure sensor fault (LO) | 大气压力传感器故障 (LO) |
| Kobelco | P2229 | Atmospheric pressure sensor fault (HI) | 大气压力传感器故障 (HI) |
| Kobelco | P0192 | Common rail pressure sensor fault | 共轨压力传感器故障 |
| Kobelco | P0194 | Common rail pressure control fault | 共轨压力控制故障 |
| Kobelco | P0201 | Injector 1 control fault | 喷油嘴 1 控制故障 |
| Kobelco | P0202 | Injector 2 control fault | 喷油嘴 2 控制故障 |
| Kobelco | P0203 | Injector 3 control fault | 喷油嘴 3 控制故障 |
| Kobelco | P0204 | Injector 4 control fault | 喷油嘴 4 控制故障 |
| Kobelco | P0205 | Injector 5 control fault | 喷油嘴 5 控制故障 |
| Kobelco | P0206 | Injector 6 control fault | 喷油嘴 6 控制故障 |
| Kobelco | P0209 | Injector preheating fault | 喷油嘴预热故障 |
| Kobelco | P0220 | Idle control fault | 怠速控制故障 |
| Kobelco | P0221 | Additional air valve control fault | 附加空气阀控制故障 |
| Kobelco | P0222 | Throttle position sensor / switch fault | 节气门位置传感器 / 开关故障 |
| Kobelco | P0230 | Turbocharger control fault | 涡轮增压控制故障 |
| Kobelco | P0240 | EGR control fault | EGR 控制故障 |
| Kobelco | P0244 | EGR temperature sensor fault | EGR 温度传感器故障 |
| Kobelco | P0250 | EGR valve control fault | EGR 阀控制故障 |
| Kobelco | P0290 | Intake pressure regulation fault | 进气压力调节故障 |
| Kobelco | P0291 | Intake pressure sensor fault | 进气压力传感器故障 |
| Kobelco | P0300 | Engine knock fault | 发动机敲击故障 |
| Kobelco | P0335 | Crankshaft position sensor fault | 曲轴位置传感器故障 |
| Kobelco | P0345 | Camshaft position sensor fault | 凸轮轴位置传感器故障 |
| Kobelco | P0400 | EGR insufficient flow fault | EGR 流量不足故障 |
| Kobelco | P0401 | EGR flow control fault | EGR 流量控制故障 |
| Kobelco | P0420 | Catalytic converter fault (low efficiency) | 催化转换器故障（效率低下） |
| Kobelco | P0500 | Vehicle speed sensor fault | 车速传感器故障 |
| Kobelco | P0600 | ECU fault | ECU 故障 |
| Kobelco | P0603 | ECU power voltage fault | ECU 电源电压故障 |
| Kobelco | P0606 | ECU internal RAM fault | ECU 内部 RAM 故障 |
| Kobelco | P0610 | Power control fault | 电源控制故障 |
| Kobelco | P0620 | ECU internal fault | ECU 内部故障 |
| Kobelco | P0650 | ECU power voltage fault | ECU 电源电压故障 |
| Kobelco | P0700 | TCM fault | TCM 故障 |
| Kobelco | P0705 | Hydraulic oil pressure sensor fault | 液压油压力传感器故障 |
| Kobelco | P0720 | Transmission speed sensor fault | 变速器速度传感器故障 |
| Kobelco | P0801 | Hydraulic oil pump control fault | 液压油泵控制故障 |
| Kobelco | P0806 | Hydraulic oil pressure switch fault | 液压油压力开关故障 |
| Kobelco | P0807 | Hydraulic oil pressure switch fault | 液压油压力开关故障 |
| Kobelco | P0820 | Hydraulic pilot pressure fault | 液压先导压力故障 |
Understanding excavator fault codes is crucial for efficient maintenance and operation of your heavy machinery. These codes, displayed by the machine's onboard computer, indicate specific issues that need attention. Ignoring these codes can lead to further damage and costly downtime. This guide provides a comprehensive list of fault codes for some of the leading excavator brands: Volvo, Komatsu, Hyundai, and Kobelco. Whether you are dealing with a Volvo error code related to the power boost solenoid valve (PPID1121 MA9107 - 12) or a Komatsu error code indicating an automatic mode system issue (E01), this resource will help you identify the problem.
For Hyundai excavator owners, codes like 1013, indicating a high voltage issue in the hydraulic oil temperature sensor circuit, are essential to recognize. Similarly, understanding Kobelco fault codes such as P2228 for an atmospheric pressure sensor fault (LO) can save valuable time in diagnostics. Remember, prompt identification and resolution of these fault codes are key to maximizing the lifespan and performance of your construction equipment. Troubleshooting excavator problems often starts with deciphering these codes accurately.
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Common Component Explanations
挖掘机水温传感器 (Excavator Water Temperature Sensor - Датчик температуры воды экскаватора)
安装在发动机冷却系统上，用于监测发动机的温度。例如：卡特彼勒 Caterpillar 320D 使用水温传感器来确保发动机不会过热. Installed on the engine cooling system to monitor the engine temperature. For example: Caterpillar 320D uses a water temperature sensor to ensure the engine does not overheat. Устанавливается на систему охлаждения двигателя для контроля температуры двигателя. Например: Caterpillar 320D использует датчик температуры воды, чтобы гарантировать, что двигатель не перегревается.
重卡空气滤芯 (Heavy Truck Air Filter - Воздушный фильтр грузовика)
安装在发动机进气系统中，用于过滤进入发动机的空气，防止灰尘和杂质损坏发动机。例如：沃尔沃 Volvo FH 系列重卡配备高效的空气滤芯。Installed in the engine intake system to filter the air entering the engine, preventing dust and impurities from damaging the engine. For example: Volvo FH series heavy trucks are equipped with high-efficiency air filters. Устанавливается в системе впуска двигателя для фильтрации воздуха, поступающего в двигатель, предотвращая попадание пыли и загрязнений, которые могут повредить двигатель. Например: большегрузные автомобили серии Volvo FH оснащены высокоэффективными воздушными фильтрами.
农机液压泵 (Agricultural Machinery Hydraulic Pump - Гидравлический насос для сельскохозяйственной техники)
为农业机械的工作部件提供液压动力。例如：约翰迪尔 John Deere 8R 系列拖拉机使用强大的液压泵来操作各种农具。Provides hydraulic power to the working parts of agricultural machinery. For example: John Deere 8R series tractors use powerful hydraulic pumps to operate various implements. Обеспечивает гидравлической энергией рабочие части сельскохозяйственной техники. Например: тракторы серии John Deere 8R используют мощные гидравлические насосы для работы с различными сельскохозяйственными орудиями.
汽车刹车片 (Car Brake Pads - Тормозные колодки автомобиля)
汽车制动系统的关键部件，通过摩擦制动盘减速或停止车辆。例如：宝马 BMW 3 系轿车使用高性能刹车片以确保安全制动。A critical component of the car's braking system, it decelerates or stops the vehicle through friction with the brake disc. For example: BMW 3 Series sedans use high-performance brake pads to ensure safe braking. Важный компонент тормозной системы автомобиля, который замедляет или останавливает транспортное средство посредством трения о тормозной диск. Например: седаны BMW 3 серии используют высокоэффективные тормозные колодки для обеспечения безопасного торможения.
挖掘机主控阀 (Excavator Main Control Valve - Главный распределительный клапан экскаватора)
液压系统的核心部件，控制液压油流向不同的液压缸和马达，实现挖掘机的各种动作。例如：小松 Komatsu PC200 系列挖掘机的主控阀精确控制着铲斗、动臂和斗杆的运动. The core component of the hydraulic system, controlling the flow of hydraulic oil to different hydraulic cylinders and motors to achieve various movements of the excavator. For example: Komatsu PC200 series excavators' main control valve precisely controls the movement of the bucket, boom, and arm. Основной компонент гидравлической системы, контролирующий поток гидравлического масла к различным гидравлическим цилиндрам и моторам для осуществления различных движений экскаватора. Например: в экскаваторах серии Komatsu PC200 главный распределительный клапан точно контролирует движение ковша, стрелы и рукояти.
重卡发动机涡轮增压器 (Heavy Truck Engine Turbocharger - Турбокомпрессор двигателя грузовика)
增加发动机的进气量和功率，提高燃油效率。例如：斯堪尼亚 Scania R 系列重卡通常配备高性能涡轮增压器。Increases the intake air volume and power of the engine, improving fuel efficiency. For example: Scania R series heavy trucks are often equipped with high-performance turbochargers. Увеличивает объем всасываемого воздуха и мощность двигателя, повышая топливную эффективность. Например: большегрузные автомобили серии Scania R обычно оснащаются высокопроизводительными турбокомпрессорами.
农机喷油嘴 (Agricultural Machinery Injector - Форсунка для сельскохозяйственной техники)
将燃油以雾状形式喷入发动机燃烧室，确保燃油充分燃烧。例如：雷沃 Lovol 谷物收割机使用精密喷油嘴以提高发动机性能。Injects fuel into the engine combustion chamber in a mist form, ensuring complete combustion. For example: Lovol grain harvesters use precision injectors to improve engine performance. Впрыскивает топливо в камеру сгорания двигателя в виде тумана, обеспечивая полное сгорание. Например: зерноуборочные комбайны Lovol используют прецизионные форсунки для повышения производительности двигателя.
汽车发电机 (Car Alternator - Генератор автомобиля)
为汽车的电气系统提供电力，并为电池充电。例如：丰田 Toyota 卡罗拉配备可靠的发电机以确保车辆电力供应。Provides power to the car's electrical system and charges the battery. For example: Toyota Corolla is equipped with a reliable alternator to ensure the vehicle's power supply. Обеспечивает электроэнергией электрическую систему автомобиля и заряжает аккумулятор. Например: Toyota Corolla оснащена надежным генератором для обеспечения электроснабжения автомобиля.
挖掘机回转减速器 (Excavator Swing Reducer - Редуктор поворота экскаватора)
驱动挖掘机上部结构旋转的部件。例如：日立 Hitachi ZX 系列挖掘机采用高效的回转减速器，实现平稳的回转动作。The component that drives the rotation of the excavator's upper structure. For example: Hitachi ZX series excavators use efficient swing reducers for smooth rotation. Компонент, который приводит в движение поворот верхней части экскаватора. Например: экскаваторы серии Hitachi ZX используют эффективные редукторы поворота для обеспечения плавного вращения.
重卡传动轴 (Heavy Truck Drive Shaft - Карданный вал грузовика)
将发动机的动力传递到车轮。例如：东风 Dongfeng 商用车使用坚固的传动轴以承受重载。Transmits power from the engine to the wheels. For example: Dongfeng commercial vehicles use robust drive shafts to withstand heavy loads. Передает мощность от двигателя к колесам. Например: коммерческие автомобили Dongfeng используют прочные карданные валы, чтобы выдерживать большие нагрузки.
Growshine International is committed to providing comprehensive support for all your engineering machinery, heavy truck, agricultural machinery, and automobile parts needs. In addition to offering a vast selection of high-quality components, we also strive to provide valuable resources like this fault code guide to help our customers maintain their equipment effectively. Our services include global sourcing, quality control, efficient logistics, and dedicated customer support. We aim to be your reliable partner in the import and export of all types of machinery and vehicle parts.
