Comprehensive Kobelco Excavator Fault Code Guide - June 14, 2025
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Welcome to your definitive resource for understanding Kobelco excavator fault codes. Whether you're dealing with machinery malfunctions or engine errors, this comprehensive guide provides the latest free Kobelco machinery code tables and engine code tables to help you diagnose and resolve issues efficiently. At Growshine International, we understand the importance of keeping your equipment running smoothly, which is why we offer a wide range of high-quality construction machinery parts, heavy truck parts, agricultural machinery parts, and auto parts to meet your needs.
Kobelco Machinery Code Table
| Fault Code | Fault Content |
|---|---|
| A015 | Engine adjustment (A adjustment) not performed or failed |
| A025 | Pump proportional valve adjustment (B adjustment) not performed or failed |
| A035 | Unloading valve adjustment (C adjustment) not performed or failed |
| A215 | ROM adjustment data write data abnormal |
| A225 | ROM adjustment data write abnormal |
| A235 | ROM timer data write data abnormal |
| A245 | ROM timer data write abnormal |
| A255 | Proportional valve adjustment data write abnormal |
| B012 | Boom lifting pressure sensor abnormal output |
| B013 | Boom lifting pressure sensor disconnection abnormal |
| B014 | Boom lifting pressure sensor power short circuit |
| B022 | Boom lowering pressure sensor abnormal output |
| B023 | Boom lowering pressure sensor disconnection abnormal |
| B024 | Boom lowering pressure sensor power short circuit |
| B032 | Arm extension pressure sensor abnormal output |
| B033 | Arm extension pressure sensor disconnection abnormal |
| B034 | Arm extension pressure sensor power short circuit |
| B042 | Arm retraction pressure sensor abnormal output |
| B043 | Arm retraction pressure sensor disconnection abnormal |
| B044 | Arm retraction pressure sensor power short circuit |
| B052 | Bucket digging pressure sensor abnormal output |
| B053 | Bucket digging pressure sensor disconnection abnormal |
| B054 | Bucket digging pressure sensor power short circuit |
| B062 | Bucket tilting pressure sensor abnormal output |
| B063 | Bucket tilting pressure sensor disconnection abnormal |
| B064 | Bucket tilting pressure sensor power short circuit |
| B072 | Swing pressure sensor abnormal output |
| B073 | Swing pressure sensor disconnection abnormal |
| B074 | Swing pressure sensor power short circuit |
| B092 | Right travel pressure sensor abnormal output |
| B093 | Right travel pressure sensor disconnection abnormal |
| B094 | Right travel pressure sensor power short circuit |
| B102 | Left travel pressure sensor abnormal output |
| B103 | Left travel pressure sensor disconnection abnormal |
| B104 | Left travel pressure sensor power short circuit |
| B113 | Attachment selector position detection pressure sensor disconnection abnormal |
| B114 | Attachment selector position detection pressure sensor power short circuit |
| B162 | P1 side attachment pressure sensor abnormal output |
| B163 | P1 side attachment pressure sensor disconnection abnormal |
| B164 | P1 side attachment pressure sensor power short circuit |
| B172 | P2 side attachment pressure sensor abnormal output |
| B173 | P2 side attachment pressure sensor disconnection abnormal |
| B174 | P2 side attachment pressure sensor power short circuit |
| C012 | P1 pump pressure sensor abnormal output |
| C013 | P1 pump pressure sensor disconnection abnormal |
| C014 | P1 pump pressure sensor power short circuit |
| C022 | P2 pump pressure sensor abnormal output |
| C023 | P2 pump pressure sensor disconnection abnormal |
| C024 | P2 pump pressure sensor power short circuit |
| C033 | Boom head pressure sensor disconnection abnormal |
| C034 | Boom head pressure sensor power short circuit |
| C043 | Boom rod pressure sensor disconnection abnormal |
| C044 | Boom rod pressure sensor power short circuit |
| D012 | P1 unloading proportional valve output transistor ON failure |
| D013 | P1 unloading proportional valve disconnection abnormal |
| D022 | P2 unloading proportional valve output transistor ON failure |
| D023 | P2 unloading proportional valve disconnection abnormal |
| D032 | Travel straight proportional valve output transistor ON failure |
| D033 | Travel straight proportional valve disconnection abnormal |
| D062 | Arm retraction 2-speed proportional valve output transistor ON failure |
| D063 | Arm retraction 2-speed proportional valve disconnection abnormal |
| E012 | P1 pump proportional valve output transistor ON failure |
| E013 | P1 pump proportional valve disconnection abnormal |
| E022 | P2 pump proportional valve output transistor ON failure |
| E023 | P2 pump proportional valve disconnection abnormal |
| F011 | Work equipment boost solenoid valve output transistor OFF failure, ground short circuit |
| F013 | Work equipment boost solenoid valve output transistor ON failure, disconnection |
| F021 | Swing parking solenoid valve output transistor OFF failure, ground short circuit |
| F023 | Swing parking solenoid valve output transistor ON failure, disconnection |
| F031 | Travel 1-2 speed solenoid valve output transistor OFF failure, ground short circuit |
| F033 | Travel 1-2 speed solenoid valve output transistor ON failure, disconnection |
| F041 | Attachment selector solenoid valve output transistor OFF failure, ground short circuit |
| F043 | Attachment selector output transistor ON failure, disconnection |
| G032 | Engine controller directly inputted speed sensor over limit |
| G033 | Engine controller directly inputted speed sensor disconnection abnormal |
| G042 | Speed sensor and engine controller received data over limit from engine controller direct input |
| G043 | Speed sensor and engine controller received data disconnection abnormal from engine controller direct input |
| H013 | Throttle potentiometer disconnection abnormal |
| H014 | Throttle potentiometer power short circuit |
| H023 | Boom angle potentiometer disconnection abnormal |
| H024 | Boom angle potentiometer power short circuit |
| H033 | Arm angle potentiometer disconnection abnormal |
| H034 | Arm angle potentiometer power short circuit |
| H091 | Fuel sensor ground short circuit abnormal |
| H093 | Fuel sensor disconnection abnormal |
| I111 | CAN1 communication reception abnormal (passive fault) |
| I113 | CAN1 communication reception abnormal (communication interrupted) |
| I313 | Instrument cluster communication reception abnormal (communication interrupted fault) |
| K014 | Battery relay contact sintering |
| R014 | Wiper motor arc prevention relay abnormal |
| R024 | Wiper motor forward rotation relay abnormal |
| R034 | Wiper motor reverse rotation relay abnormal |
| R044 | Washer motor relay abnormal |
| R134 | Rotating beacon relay abnormal |
| R144 | Rotating beacon relay abnormal |
| R154 | Travel alarm relay abnormal |
| R164 | Automatic idle stop relay 2 abnormal |
| R174 | Engine forced stop relay abnormal |
| R184 | Control lever lock relay abnormal |
| R214 | Safety relay abnormal |
Kobelco Engine Code Table
| Fault Code | Inferred Fault Cause |
|---|---|
| P0217 | Overheat |
| P2228 | Atmospheric pressure sensor fault (Lo) |
| P2229 | Atmospheric pressure sensor fault (Hi) |
| P0192 | Common rail pressure sensor fault (Lo) |
| P0193 | Common rail pressure sensor fault (Hi) |
| P0191 | Common rail pressure sensor fault |
| P0237 | Intake pressure sensor fault (Lo) |
| P0108 | Intake pressure sensor fault (Hi) |
| P0117 | Water temperature sensor fault (Lo) |
| P0118 | Water temperature sensor fault (Hi) |
| P0182 | Fuel temperature sensor fault (Lo) |
| P0183 | Fuel temperature sensor fault (Hi) |
| P0489 | EGR linear solenoid 1 fault (disconnection GND short circuit) |
| P0490 | EGR linear solenoid 1 fault (VB short circuit) |
| P0404 | EGR valve stuck 1 |
| P0405 | EGR lifter sensor 1 fault (Lo) |
| P0406 | EGR lifter sensor 1 fault (Hi) |
| P2120 | Dual throttle sensor fault |
| P2122 | Throttle sensor 1 fault (Lo) |
| P2123 | Throttle sensor 1 fault (Hi) |
| P2127 | Throttle sensor 2 fault (Lo) |
| P2128 | Throttle sensor 2 fault (Hi) |
| P0234 | Turbocharger overload |
| P1133 | Working throttle sensor (Hi) |
| P0611 | ECU charging circuit failure (Lo) |
| P0200 | ECU charging circuit failure (Hi) |
| P0605 | Flash ROM abnormal |
| P0606 | CPU fault (detected faulty hard drive) |
| P0607 | CPU monitoring IC abnormal |
| P0629 | SCV (+) VB short circuit |
| P1601 | QR code fault |
| P0628 | SCV other abnormal |
| P0540 | Preheating device fault |
| P0088 | Common rail abnormal high pressure (stage 1) |
| P0088 | Common rail abnormal high pressure (stage 2) |
| P2635 | Supply pump abnormal high pressure history supply pump solenoid valve stuck |
| P0617 | Starter switch fault |
| P0335 | Main rotation sensor fault, dual rotation sensor fault |
| P0336 | Main rotation sensor pulse abnormal |
| P0340 | Sub rotation sensor fault |
| P0341 | Sub rotation sensor pulse abnormal |
| P1530 | Engine stop switch fault |
| U110A | Communication interrupted (electromechanical controller TSC1) |
| P1211 | Injector common 1 fault (GND short circuit) |
| P1214 | Injector common 2 fault (GND short circuit) |
| P1212 | Injector common 1 fault (VB short circuit) |
| P1215 | Injector common 2 fault (VB short circuit) |
| P0201 | Injector 1 disconnection |
| P0202 | Injector 2 disconnection |
| P0203 | Injector 3 disconnection |
| P0204 | Injector 4 disconnection |
| P0263 | Cylinder imbalance correction error #1 |
| P0266 | Cylinder imbalance correction error #2 |
| P0269 | Cylinder imbalance correction error #3 |
| P0272 | Cylinder imbalance correction error #4 |
| P0219 | Engine over-run operation |
Additional Engine DTC Codes and Inferred Causes
| DTC Code | Inferred Fault Cause |
|---|---|
| P0335 | Main rotation sensor system fault |
| P0606 | CPU fault (hard drive checked out) |
| P0629 | Supply solenoid valve system fault |
| P0200 | ECU charging circuit malfunction (HI) |
| P0611 | ECU charging circuit malfunction (LOW) |
| P2120 | Two throttle sensor system fault |
| P0217 | Overheat |
| P0540 | Preheating device fault (open/GND short) |
| P0540 | Preheating device fault (+B short) |
| P0234 | Turbocharger overload device |
| P0088 | Common rail diesel injection system pressure abnormal, control system |
| P0088 | Common rail diesel injection system pressure abnormal, pump overpressure delivery |
| P0108 | Boost sensor fault (HI) |
| P0117 | Water temperature sensor fault (LOW) |
| P0118 | Water temperature sensor fault (HI) |
| P0191 | Common rail diesel injection system pressure sensor fault |
| P0192 | Common rail diesel injection system pressure sensor fault (LOW) |
| P0193 | Common rail diesel injection system pressure sensor fault (HI) |
| P0201 | Fuel injection device 1 solenoid valve system disconnection |
| P0202 | Fuel injection device 2 solenoid valve system disconnection |
| P0203 | Fuel injection device 3 solenoid valve system disconnection |
| P0204 | Fuel injection device 4 solenoid valve system disconnection |
| P0237 | Boost sensor fault (LOW) |
| P0404 | EGR valve fastened 1 |
| P0405 | EGR valve lift sensor 1 fault (LOW) |
| P0406 | EGR valve lift sensor 1 fault (HI) |
| P0489 | EGR valve linear solenoid valve 1 fault (disconnection, GND short) |
| P0490 | EGR valve linear solenoid valve 1 fault (VB short) |
| P0605 | Flash ROM abnormal |
| P0607 | CPU monitoring IC abnormal |
| P0628 | Fuel supply pump solenoid valve system fault (full discharge mode) |
| P1211 | Fuel injection device solenoid valve drive system GND short circuit · common rail 1 fault |
| P1212 | Fuel injection device solenoid valve drive system +B short circuit · common rail 1 fault |
| P1212 | Fuel injection device solenoid valve drive system open · common rail 1 fault |
| P1214 | Fuel injection device solenoid valve drive system GND short circuit · common rail 2 fault |
| P1215 | Fuel injection device solenoid valve drive system +B short circuit · common rail 2 fault |
| P1215 | Fuel injection device solenoid valve drive system open · common rail 2 fault |
| P1601 | Fuel injection device multi-point correction abnormal |
| P2228 | Atmospheric pressure sensor fault (LOW) |
| P2229 | Atmospheric pressure sensor fault (HI) |
| P2635 | Fuel supply pump solenoid valve fastened |
| P2635 | Fuel supply pump malfunction |
| P0182 | Fuel temperature sensor fault (LOW) |
| P0183 | Fuel temperature sensor fault (HI) |
| P0340 | Sub rotation sensor system fault |
| P0686 | Main relay system fault |
| P2122 | Throttle sensor 1 fault (LOW) |
| P2123 | Throttle sensor 1 fault (HI) |
| P2127 | Throttle sensor 2 fault (LOW) |
| P2128 | Throttle sensor 2 fault (HI) |
| P1133 | Emergency throttle sensor fault (HI) |
| P0219 | Engine overspeed |
| P0263 | Cylinder imbalance correction #1 |
| P0266 | Cylinder imbalance correction #2 |
| P0269 | Cylinder imbalance correction #3 |
| P0272 | Cylinder imbalance correction #4 |
| P0617 | Starter switch system fault |
| P2635 | Fuel supply pump abnormal pressure history |
| U1001 | CAN communication stop (mechanical) |
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Explanation of Common Machinery Parts
风扇马达 (Fēngshàn Mǎdá / Fan Motor / Вентиляторный двигатель): The 风扇马达 drives the cooling fan in equipment like the Caterpillar 345D 风扇马达.
液压泵 (Yèyā Bèng / Hydraulic Pump / Гидравлический насос): The 液压泵 is the heart of the hydraulic system, powering various functions. Example: Komatsu PC200-7 液压泵.
水温传感器 (Shuǐwēn Chuángǎnqì / Water Temperature Sensor / Датчик температуры воды): The 水温传感器 monitors the engine's coolant temperature. Found in various machines like the Komatsu Water Temperature Sensor.
喷油器 (Pēnyóuqì / Injector / Форсунка): The 喷油器 delivers fuel into the engine's cylinders, as seen in the Isuzu 4HK1 喷油器.
涡轮增压器 (Wōlún Zēngyāqì / Turbocharger / Турбокомпрессор): The 涡轮增压器 increases engine power by forcing more air into the combustion chamber. Example: Deutz BF6M 2012 涡轮增压器.
曲轴 (Qūzhóu / Crankshaft / Коленчатый вал): The 曲轴 converts the linear motion of the pistons into rotational motion. Used in engines like the Isuzu 6HK1 vilebrequin (crankshaft).
空气滤芯 (Kōngqì Lǜxīn / Air Filter / Воздушный фильтр): The 空气滤芯 cleans the air entering the engine, preventing damage from dust and debris. Example: 常林 空气滤芯.
机油滤清器 (Jīyóu Lǜqīngqì / Oil Filter / Масляный фильтр): The 机油滤清器 removes contaminants from the engine oil, keeping it clean and effective.
挖掘机散热器 (Wàjuéjī Sànrèqì / Excavator Radiator / Радиатор экскаватора): The 挖掘机散热器 helps to cool down the engine of an excavator, such as the 徐工 XE35U 挖掘机.
风扇泵 (Fēngshàn Bèng / Fan Pump / Насос вентилятора): The 风扇泵 drives the fan to cool the engine, as seen in 沃尔沃 风扇泵.
If you encounter any of these fault codes in your Kobelco excavator, it's crucial to address them promptly to avoid further damage and downtime. Growshine International is here to support you with a comprehensive inventory of construction machinery parts and expert assistance. Contact us today to find the parts you need to get your Kobelco equipment back in operation.
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