Volvo EC210D Error Codes – Complete ECU Fault Code List & Troubleshooting (D6E Engine)

 

Volvo EC210D Error Code List – Complete ECU Fault Code Guide (D6E Engine)

The Volvo EC210D uses an advanced electronic control system to monitor engine, hydraulic, and cooling performance. When a problem occurs, the ECU displays an error code to help identify the fault.

This guide provides a complete list of Volvo EC210D error codes, their meanings, causes, and recommended troubleshooting steps.

Engine-Related Error Codes (D6E Engine)

ECU 111 – Fuel Pressure Low

• Clogged fuel filters
• Weak fuel supply pump
• Blocked fuel lines
• Water in fuel

ECU 268 – Boost Pressure Low

• Turbocharger malfunction
• Boost leak in hoses
• Clogged air filter
• Faulty boost pressure sensor

ECU 436 – Engine Coolant Temperature High

• Radiator blocked
• Thermostat stuck
• Low coolant level
• Fan clutch not engaging

ECU 494 – Charge Air Temperature High

• Clogged intercooler
• Low turbo boost
• High ambient temperature

ECU 438 – Coolant Temperature Sensor Fault

• Sensor damaged
• Loose connector
• Wiring harness issue

Hydraulic System Error Codes

ECU 560 – Hydraulic Oil Temperature High

• Blocked hydraulic oil cooler
• Hydraulic pump overload
• Low hydraulic oil level
• Wrong oil grade

ECU 441 – Fan Clutch System Abnormal

• Fan clutch not engaging
• Weak fan belt
• Electrical fault in fan control

ECU 320 – Pump Solenoid Fault

• Solenoid coil damaged
• Loose connector
• ECU signal failure

ECU 321 – Pump Pressure Sensor Fault

• Sensor malfunction
• Wiring issue
• Incorrect voltage signal

Electrical & Sensor Error Codes

ECU 190 – Battery Voltage Low

• Weak battery
• Alternator not charging
• Loose battery terminals

ECU 191 – Battery Voltage High

• Faulty alternator regulator
• Incorrect wiring

ECU 224 – Throttle Position Sensor Fault

• Sensor damaged
• Loose connector
• Calibration required

How to Troubleshoot Error Codes

• Record the error code from the monitor
• Check wiring and connectors first
• Inspect related sensors
• Check hydraulic and engine temperatures
• Reset the code after repair
• If code returns → deeper inspection required

This error code list will help operators and mechanics quickly identify and fix issues in the Volvo EC210D.

Volvo-EC210D-slow-hydraulics-causes.