Decoding Doosan VPV00105: A New Fault Code for Hydraulic Overload in High-Pressure Variable Pumps
Locate the engine coolant temperature sensor near the thermostat housing on your engine block. Visually inspect the wire harness extending from the sensor. Look for: Exposed copper or frayed insulation. Pinch points near heavy brackets. Melted spots from contact with hot exhaust components. Step 3: Examine the Electrical Plug
Over 80% of VPV00105 reports on new pumps are electrical – sensor mismatch, pin fitment, or missing calibration. Always verify sensor voltage before replacing the pump assembly.
: After addressing any physical faults, attempt to reset the error code via the display panel to see if the fault persists. doosan fault code vpv00105 new
Disconnect the plug and check for moisture or corrosion. Clean with electrical contact cleaner if necessary. 2. Sensor Diagnosis (Electrical)
When this error occurs, the ECM loses its ability to monitor engine heat accurately. To protect the engine block, the machine defaults to a pre-programmed fallback value (often 90°C/194°F). This default state prevents the engine from entering cold-start enrichment modes and reduces maximum operating speeds. Root Causes of the Fault
Heavy duty equipment relies on exact temperature data to manage fuel injection, timing, and cooling fans. The VPV00105 code points directly to a breakdown in this monitoring loop. Decoding Doosan VPV00105: A New Fault Code for
: Severe air pockets in the cooling system can leave the tip of the sensor dry, causing it to read completely inaccurate data or fail initialization tests. Step-by-Step Troubleshooting Guide
The error is rarely caused by a mechanical failure of the cooling system itself. Instead, it is almost always an electrical or sensor issue:
Place your multimeter leads across the two pins of the solenoid coil. Pinch points near heavy brackets
In some newer models with certain software versions, the "VPV00105" code or the "2107—DPF regeneration" message is the new standard way the system communicates that an has been automatically triggered and is currently running. In this case, it should not be treated as an error.
Unplanned down-time on a busy job site costs money. Prevent future sensor faults with three simple maintenance routines: