Your Ultimate Guide to Volvo Excavator Fault Codes - [Current Date: June 17, 2025]
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Understanding Volvo excavator fault codes is crucial for efficient maintenance and minimizing downtime. When your Volvo excavator displays an error code, it's essential to diagnose the issue quickly. This comprehensive guide provides a detailed breakdown of SAE codes and their corresponding Volvo excavator fault codes, specifically for models equipped with the D12C engine, such as the EC330B and EC360B.
Maintenance tool VCADS Pro uses SAE type fault codes, which include identifiers like MID, PID, and FMI.
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MID (Message Identification Deion): Identifies the control component. Each component has a unique number.
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PID (Parameter Identification Deion): Identifies the parameter or value. Each parameter has a unique number.
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PPID (Proprietary Parameter Identification Deion): Volvo's unique parameter value or identification number.
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SID (Subsystem Identification Deion): Identifies the component. SID numbers depend on the control component (MID) they originate from.
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PSID (Proprietary Subsystem Identification Deion): Volvo's unique component identification.
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FMI (Failure Mode Identifier): Identifies the type of fault.
This information is based on Volvo excavator fault codes. When reading fault codes on VCADS Pro, SAE codes must be converted to Volvo excavator fault codes for further troubleshooting. Below are the conversion tables.
SAE Codes to Volvo Excavator Fault Codes
MID 128 Engine Control Unit (E-ECU) - Fault Codes
| SAE-Code MID | PID, PPID, SID, PSID | FMI | Volvo Excavator Fault Code | Description |
|---|---|---|---|---|
| 128 | PID45 | 3 | RE2501 - 03 | Intake air preheating relay, high voltage |
| 128 | PID45 | 4 | RE2501 - 04 | Intake air preheating relay, low voltage |
| 128 | PID45 | 5 | RE2501 - 05 | Intake air preheating relay, open circuit |
| 128 | PID94 | 0 | ER49 - 00 | Fuel supply pressure sensor, below limit pressure |
| 128 | PID94 | 3 | ER49 - 03 | Fuel supply pressure sensor, high voltage |
| 128 | PID94 | 4 | ER49 - 04 | Fuel supply pressure sensor, low voltage |
| 128 | PID100 | 1 | ER45 - 01 | Engine oil pressure sensor, too low |
| 128 | PID100 | 3 | ER45 - 03 | Engine oil pressure sensor, high voltage |
| 128 | PID100 | 4 | ER45 - 04 | Engine oil pressure sensor, low voltage |
| 128 | PID100 | 11 | ER45 - 11 | Engine oil pressure sensor, other faults |
| 128 | PID102 | 3 | ER44 - 03 | Boost pressure sensor, high voltage |
| 128 | PID102 | 4 | ER44 - 04 | Boost pressure sensor, low voltage |
| 128 | PID102 | 11 | ER44 - 11 | Boost pressure sensor, other faults |
| 128 | PID105 | 3 | ER42 - 03 | Boost temperature sensor, high voltage |
| 128 | PID105 | 4 | ER42 - 04 | Boost temperature sensor, low voltage |
| 128 | PID105 | 11 | ER42 - 11 | Boost temperature sensor, other faults |
| 128 | PID107 | 0 | ER4A - 00 | Air intake filter pressure drop sensor, pressure drop too high |
| 128 | PID107 | 3 | ER4A - 03 | Air filter pressure drop sensor, high voltage |
| 128 | PID107 | 4 | ER4A - 04 | Air filter pressure drop sensor, low voltage |
| 128 | PID107 | 5 | ER4A - 05 | Air filter pressure drop sensor, open circuit |
| 128 | PID108 | 3 | ER4C - 03 | Ambient air pressure sensor, high voltage |
| 128 | PID108 | 4 | ER4C - 04 | Ambient air pressure sensor, low voltage |
| 128 | PID110 | 0 | ER47 - 00 | Engine coolant temperature sensor, too high |
| 128 | PID110 | 3 | ER47 - 03 | Engine coolant temperature sensor, high voltage |
| 128 | PID110 | 4 | ER47 - 04 | Engine coolant temperature sensor, low voltage |
| 128 | PID110 | 11 | ER47 - 11 | Engine coolant temperature sensor, other faults |
| 128 | PID111 | 1 | ER46 - 01 | Coolant level sensor, too low |
| 128 | PID111 | 3 | ER46 - 03 | Coolant level sensor, high voltage |
| 128 | PID111 | 4 | ER46 - 04 | Coolant level sensor, low voltage |
| 128 | PID158 | 0 | ER4E - 00 | E-ECU input power voltage, over high voltage |
| 128 | PID158 | 1 | ER4E - 01 | E-ECU input power voltage, over low voltage |
| 128 | PID172 | 3 | ER4B - 03 | Intake air temperature sensor, high voltage |
| 128 | PID172 | 4 | ER4B - 04 | Intake air temperature sensor, low voltage |
| 128 | PID172 | 11 | ER4B - 11 | Intake air temperature sensor, other faults |
| 128 | PID175 | 0 | ER41 - 00 | Engine oil temperature sensor, too high |
| 128 | PID175 | 3 | ER41 - 03 | Engine oil temperature sensor, high voltage |
| 128 | PID175 | 4 | ER41 - 04 | Engine oil temperature sensor, low voltage |
| 128 | PID175 | 11 | ER41 - 11 | Engine oil temperature sensor, other faults |
| 128 | SID1 | 3 | MA2301 - 03 | Injector 1 solenoid valve, high voltage |
| 128 | SID1 | 4 | MA2301 - 04 | Injector 1 solenoid valve, low voltage |
| 128 | SID1 | 11 | MA2301 - 11 | Injector 1 solenoid valve, other faults |
| 128 | SID2 | 3 | MA2302 - 03 | Injector 2 solenoid valve, high voltage |
| 128 | SID2 | 4 | MA2302 - 04 | Injector 2 solenoid valve, low voltage |
| 128 | SID2 | 11 | MA2302 - 11 | Injector 2 solenoid valve, other faults |
| 128 | SID3 | 3 | MA2303 - 03 | Injector 3 solenoid valve, high voltage |
| 128 | SID3 | 4 | MA2303 - 04 | Injector 3 solenoid valve, low voltage |
| 128 | SID3 | 11 | MA2303 - 11 | Injector 3 solenoid valve, other faults |
| 128 | SID4 | 3 | MA2304 - 03 | Injector 4 solenoid valve, high voltage |
| 128 | SID4 | 4 | MA2304 - 04 | Injector 4 solenoid valve, low voltage |
| 128 | SID4 | 11 | MA2304 - 11 | Injector 4 solenoid valve, other faults |
| 128 | SID5 | 3 | MA2305 - 03 | Injector 5 solenoid valve, high voltage |
| 128 | SID5 | 4 | MA2305 - 04 | Injector 5 solenoid valve, low voltage |
| 128 | SID5 | 11 | MA2305 - 11 | Injector 5 solenoid valve, other faults |
| 128 | SID6 | 3 | MA2306 - 03 | Injector 6 solenoid valve, high voltage |
| 128 | SID6 | 4 | MA2306 - 04 | Injector 6 solenoid valve, low voltage |
| 128 | SID6 | 11 | MA2306 - 11 | Injector 6 solenoid valve, other faults |
| 128 | SID21 | 3 | ER48 - 03 | Engine position sensor (camshaft), high voltage |
| 128 | SID21 | 8 | ER48 - 08 | Engine position sensor (camshaft), abnormal frequency |
| 128 | SID21 | 11 | ER48 - 11 | Engine position sensor (camshaft), other functional failures |
| 128 | SID22 | 2 | ER43 - 02 | Engine speed sensor (flywheel), intermittent or incorrect data |
| 128 | SID22 | 3 | ER43 - 03 | Engine speed sensor (flywheel), high voltage |
| 128 | SID22 | 8 | ER43 - 08 | Engine speed sensor (flywheel), abnormal frequency |
| 128 | SID70 | 3 | HE2501 - 03 | Intake air preheating coil, high voltage |
| 128 | SID70 | 4 | HE2501 - 04 | Intake air preheating coil, low voltage |
| 128 | SID70 | 5 | HE2501 - 05 | Intake air preheating coil, open circuit |
| 128 | SID231 | 9 | ER13 - 09 | Communication J1939, communication failure |
| 128 | SID231 | 11 | ER13 - 11 | Communication J1939, other faults |
| 128 | SID231 | 12 | ER13 - 12 | Communication J1939, faulty unit or component |
| 128 | SID240 | 2 | ER12 - 02 | E-ECU controller, intermittent or incorrect data |
| 128 | SID250 | 12 | ER14 - 12 | Communication J1587, faulty unit or component |
| 128 | SID253 | 2 | ER12 - 02 | E-ECU controller, intermittent or incorrect data |
| 128 | SID254 | 12 | ER12 - 12 | E-ECU controller, faulty unit or component |
MID 187 Vehicle Control Unit (V-ECU) - Fault Codes
| SAE-Code MID | PID, PPID, SID, PSID | FMI | Volvo Excavator Fault Code | Description |
|---|---|---|---|---|
| 187 | PPID1121 | 12 | MA9107 - 12 | Power boost solenoid valve, faulty unit or component |
| 187 | PPID1122 | 12 | MA9105 - 12 | Confluence shut-off solenoid valve (boom / arm), faulty unit or component |
| 187 | PPID1123 | 12 | MA9113 - 12 | Hydraulic oil cooler fan solenoid valve, faulty unit or component |
| 187 | PPID1133 | 3 | SW2701 - 03 | Engine speed control switch, high voltage |
| 187 | PPID1133 | 4 | SW2701 - 04 | Engine speed control switch, low voltage |
| 187 | PPID1134 | 3 | SW9101 - 03 | Flow control switch, high voltage |
| 187 | PPID1134 | 4 | SW9101 - 04 | Flow control switch, low voltage |
| 187 | PPID1156 | 0 | SE9105 - 00 | Hydraulic oil temperature sensor, too high |
| 187 | PPID1156 | 3 | SE9105 - 03 | Hydraulic oil temperature sensor, high voltage |
| 187 | PPID1156 | 4 | SE9105 - 04 | Hydraulic oil temperature sensor, low voltage |
| 187 | PPID1190 | 3 | ER31 - 03 | Power shift proportional valve, high voltage |
| 187 | PPID1190 | 4 | ER31 - 04 | Power shift proportional valve, low voltage |
| 187 | PPID1190 | 5 | ER31 - 05 | Power shift proportional valve, open circuit |
| 187 | PPID1191 | 3 | ER32 - 03 | Flow control proportional valve, high voltage |
| 187 | PPID1191 | 4 | ER32 - 04 | Flow control proportional valve, low voltage |
| 187 | PPID1191 | 5 | ER32 - 05 | Flow control proportional valve, open circuit |
| 187 | SID231 | 9 | ER13 - 09 | Communication J1939, communication failure |
| 187 | SID231 | 12 | ER13 - 12 | Communication J1939, faulty unit or component |
| 187 | SID240 | 2 | ER11 - 02 | V-ECU controller, intermittent or incorrect data |
| 187 | SID250 | 9 | ER14 - 09 | Communication J1587, communication failure |
| 187 | SID250 | 12 | ER14 - 12 | Communication J1587, faulty unit or component |
| 187 | SID251 | 0 | ER21 - 00 | Battery voltage (V-ECU input power voltage), over high voltage |
| 187 | SID251 | 1 | ER21 - 01 | Battery voltage (V-ECU input power voltage), over low voltage |
| 187 | SID253 | 2 | ER11 - 02 | V-ECU controller, intermittent or incorrect data |
Understanding Specific Volvo Excavator Fault Codes
Let's look at some examples of Volvo EC140CL fault codes:
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ER32-03: Flow control proportional valve, high voltage (SAE Code: MID187 PPID1191 FMI3) - This indicates a voltage greater than 14V on pin JA56 of the V-ECU, possibly due to a short circuit to Ubat or an output current exceeding 740mA. Symptoms may include non-functional pump flow control.
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ER32-04: Flow control proportional valve, low voltage (SAE Code: MID187 PPID1191 FMI4) - Triggered by a voltage between 2.85V and 0.95V on JA56, potentially from a short circuit to a lower voltage or an output current between 150mA and 50mA. Pump flow control might be at its maximum.
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ER32-05: Flow control proportional valve, open circuit (SAE Code: MID187 PPID1191 FMI5) - Occurs when the voltage on JA56 drops below 0.95V, indicating an open circuit in the proportional valve drive circuit, the valve's ground wire, or a damaged pin on the V-ECU's JA connector. The pump flow control will likely be at maximum.
Here are some Volvo EC210B fault codes:
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ER11-02: V-ECU controller has intermittent or incorrect data
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ER12-02: E-ECU controller has intermittent or incorrect data
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ER12-12: E-ECU controller has a fault
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ER13-09: J1939 communication fault
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ER14-09: J1587 communication fault
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ER21-00: Battery voltage (V-ECU input voltage) too high
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ER31-03: Power shift proportional solenoid valve voltage too high
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ER32-03: Flow control proportional solenoid valve voltage too high
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ER41-00: Engine oil temperature too high
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ER43-02: Engine speed sensor flywheel has intermittent or incorrect data
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ER44-03: Boost pressure sensor voltage too high
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ER45-01: Engine oil pressure too low
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ER46-01: Engine coolant level too low
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ER47-00: Engine coolant temperature too high
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ER48-03: Engine position sensor camshaft voltage too high
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ER49-01: Fuel supply pressure too low
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ER4A-00: Air filter pressure drop too high
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ER4B-03: Intake air temperature sensor voltage too high
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ER4C-03: Ambient air pressure sensor voltage too high
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ER4E-00: E-ECU input voltage too high
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HR2501-03: Intake air preheating coil voltage too high
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MA2301-03: Injector 1 solenoid valve voltage too high
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MA9105-12: Confluence cancellation solenoid valve boom and stick have a fault
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SE9105-00: Hydraulic oil temperature too high
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SW2701-03: Engine speed control switch voltage too high
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SW9101-03: Flow control switch voltage too high
Volvo EC240 Excavator - Engine Related Fault Codes
For the Volvo EC240 excavator, some engine-related fault codes include ER32 and ER31.
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Hydraulic pumps
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Engine components
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Filters (fuel filter element bracket, air filter)
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Sensors (water temperature sensor, oil pressure sensor, boost pressure sensor)
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Solenoid valves (power boost solenoid valve, confluence shut-off solenoid valve, hydraulic oil cooler fan solenoid valve)
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Injectors (injector solenoid valve)
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Relays (intake preheat relay)
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Cooling system parts (radiator, fan motor)
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Electrical components (ECU controllers, speed sensors)
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Transmission parts
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Undercarriage parts (track link)
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Glossary of Engineering Machinery Parts
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风扇马达 (Fēngshàn mǎdá) / Fan Motor / Вентиляторный двигатель: The motor that drives the fan, used in the cooling system. Example: Caterpillar 345D风扇马达 (Caterpillar 345D Fan Motor / Вентиляторный двигатель Caterpillar 345D).
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水温传感器 (Shuǐwēn chuánsensor) / Water Temperature Sensor / Датчик температуры воды: A sensor that measures the temperature of the engine coolant. Example: 小松 PC1250LC-10挖掘机水温传感器 (Komatsu PC1250LC-10 Excavator Water Temperature Sensor / Датчик температуры воды экскаватора Komatsu PC1250LC-10).
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空气滤芯 (Kōngqì lǜxīn) / Air Filter Cartridge / Воздушный фильтрующий элемент: A component that filters dust and particles from the air entering the engine. Example: 常林 空气滤芯 (Changlin Air Filter Cartridge / Воздушный фильтрующий элемент Changlin).
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液压泵 (Yèyā bēng) / Hydraulic Pump / Гидравлический насос: A pump that converts mechanical power into hydraulic power. Example: 小松挖掘机液压泵 (Komatsu Excavator Hydraulic Pump / Гидравлический насос экскаватора Komatsu).
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喷油器 (Pēnyóuqì) / Injector / Форсунка: A device that sprays fuel into the engine's combustion chamber. Example: 康明斯4BT3.9喷油器 (Cummins 4BT3.9 Injector / Форсунка Cummins 4BT3.9).
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散热器 (Sànrèqì) / Radiator / Радиатор: A component that cools the engine's coolant. Example: 挖掘机 散热器 (Excavator Radiator / Радиатор экскаватора).
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增压器 (Zēngyāqì) / Turbocharger / Турбокомпрессор: A device that increases the power of an engine by forcing more air into the combustion chamber. Example: 小松推土机 增压器 (Komatsu Bulldozer Turbocharger / Турбокомпрессор бульдозера Komatsu).
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电磁阀 (Diàncífá) / Solenoid Valve / Электромагнитный клапан: An electrically controlled valve used to regulate fluid flow. Example: 动力增压电磁阀 (Power Boost Solenoid Valve / Электромагнитный клапан увеличения мощности).
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曲轴 (Qūzhóu) / Crankshaft / Коленчатый вал: A rotating shaft that converts reciprocating motion into rotational motion. Example: Isuzu 6HK1 vilebrequin (Isuzu 6HK1 Crankshaft).
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行走马达 (Xíngzǒu mǎdá) / Travel Motor / Ходовой двигатель: The motor that powers the movement of the excavator. Example: 沃尔沃D7E挖掘机行走 (Volvo D7E Excavator Travel Motor / Ходовой двигатель экскаватора Volvo D7E).
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