When this fault is active, the machine enters a "limp mode" or "pressure cutback mode" to prevent damage. You will likely experience:

Doosan machines operate in harsh environments. The wiring harness leading from the main pump to the ECU can suffer from:

This fault code appears disproportionately in high-humidity, freeze-thaw climates (e.g., Northern US, Canada, Scandinavia).

To decode "VPV00105," we must break down the alphanumeric structure used by Doosan’s EPOS (Electronic Power Optimizing System) or ACE (Advanced Control Equipment) systems.

The Official Definition: Doosan Fault Code VPV00105 (New) indicates that the ECU has detected an abnormal voltage level from the main variable displacement pump pressure sensor. The signal received is either consistently higher than 4.8 volts (short to high) or 0 volts (short to ground), or the sensor circuit is open.

In plain English: The computer that controls your hydraulic pump is not getting a clear signal about how much pressure the pump is making. It sees "New" (active/unresolved) fault because the reading is outside the expected range.