Komatsu Fault Code

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E02

Pump Contol Error.

System

Not specified

Symptom

Pump Contol Error.

Diagnosis & fix steps

LOGIC: PC-EPC Valve solenoid failure. ACTION: Measure resistance at the pump solenoid (7-14 Ohms). Check the wiring harness for frame rubs.

Red Seal field insights

If this valve fails, the pump stays at "Max Swash," and the engine will stall as soon as you touch a lever.

Same code keeps coming back?

That's a program problem, not a part problem. Book a 30-minute uptime review with Grant, a Red Seal Heavy Duty Technician.

Book an uptime review

Read before you touch anything

  • This is general reference information, not a repair manual. It is for trained, qualified technicians.
  • Fault codes, meanings and procedures vary by model, serial number and software version. Confirm the code and the procedure against the manufacturer's service manual before acting.
  • Follow the OEM service manual, torque specs and your site's safety procedures: lockout/tagout, block raised equipment, relieve hydraulic, fuel and air pressure, and let hot systems cool.
  • You use this information at your own risk. Adventure Mechanical and AM Fleet Integrity accept no liability for damage, injury, downtime or loss arising from its use.
  • Not affiliated with or endorsed by any manufacturer. Brand names are used only to identify the equipment a code applies to.

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