Understanding Komatsu PC200 Excavator Fault Codes for Effective Maintenance



The Komatsu PC200 series, including PC200-6, PC200-7, and PC200-8, is a widely used excavator model. Knowing common fault codes helps owners and operators maintain these machines efficiently.

Typical Fault Codes

  • E02 – EPC System Fault: Check electronic pump solenoid and wiring.

  • E03 – Swing Parking Brake System: Inspect brake solenoid and wiring.

  • E10 – Engine Controller Power Failure: Verify ECM power supply and battery connections.

  • E11 – Engine Control System Failure: Diagnose ECM or sensor issues.

  • E14 – Feedback System Abnormalities: Test relevant sensors.

  • E15 – Engine Sensor Fault: Inspect coolant, oil, or fuel sensors.

  • Low Engine Oil Pressure: Verify oil level and sensor function.

  • Low Charge Voltage: Inspect alternator and battery connections.

Troubleshooting Tips

  • Use Komatsu diagnostic tools to read codes.

  • Inspect sensors, wiring, and connectors for damage.

  • Repair or replace faulty components as needed.

Preventive Maintenance

  • Regularly check air filters and fuel system.

  • Maintain battery and charging system.

  • Perform scheduled sensor inspections.

CTA

Keep your Komatsu PC200 running reliably by addressing fault codes early and performing regular maintenance.

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