4 Caterpillar Electric 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.
Find a Caterpillar Electric code by searching below, or browse the table. Codes on file by system:
| Code | System | Symptom | Full fix |
|---|---|---|---|
| SPN 520810 FMI 01 | High Voltage / Safety | High-Voltage System Disabled / Warning Siren | View fix |
| SPN 520860 FMI 02 | BMS / Battery | Available Torque Drops 50% / Turtle Mode | View fix |
| SPN 520910 FMI 02 | DC/DC Converter | 12V Battery Drains Flat During Operation | View fix |
| SPN 520970 FMI 03 | Pressure / Battery | Immediate HV Disconnect / Audible Siren | View fix |
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