12 Komatsu diagnostic codes on file — with the full diagnosis, repair steps, and field insights open to read free, no signup required.
Disclaimer: General reference information for trained, qualified technicians only. Codes and procedures vary by model, serial number and software version. Always follow the manufacturer's service manual and your site's safety procedures. Use at your own risk. Not affiliated with or endorsed by any manufacturer.
| Code | System | Symptom | Full fix |
|---|---|---|---|
| DHPAMA | Hydraulic Monitoring | Hydraulic Drift / Error Code Active | View fix |
| DX19KZ | Hydraulic | Travel Motor Shift Malfunction / Active E03 Alarm | View fix |
| DXE5KA | Hydraulic System | Slow Attachment Movement / No Pump Merge | View fix |
| E012 / CA2384 | Hydraulics | Swing Function Soft / Heavy Machine Lug | View fix |
| E15 | Hydraulics | Loss of Power. Engine stalls when the operator moves the joysticks. | View fix |
| E15 / CA428 | Hydraulics / Engine | Engine Surging / RPM Fluctuation | View fix |
| E15 / CA428 | Hydraulics / Engine | Engine Surging / RPM Fluctuation | View fix |
| E15 / CA428 | Hydraulics / Engine | Engine Surging / RPM Fluctuation | View fix |
| E202 | Hydraulic | LS Select Solenoid Valve: Short Circuit | View fix |
| SPN 520201 FMI 05 | Hydraulics | Boom Up Drift / Slow Raise Cycle | View fix |
| SPN 520285 FMI 14 | Hydraulics | Ripper Stalls / Low Penetration Force | View fix |
| SPN 702 FMI 3 | Electrical / Controls | Attachment Hydraulics Dead | View fix |
Same codes keep 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.
AM Fleet Integrity gives you QR-code operator reporting, preventive maintenance scheduling, and predictive alerts in one place. Start your 14-day free trial — no credit card required.
Start your free trial