Doosan Fault Code Vpv00105 New May 2026
Subject: Analysis and Troubleshooting of VPV00105 (Hydraulic Fan Motor Current High) Applicable Equipment: Doosan Heavy Equipment (Excavators: DX300, DX340, DX420, DX480 series; Wheel Loaders) System: Cooling System (Hydraulic Cooling Fan)
When this fault is active, the machine enters a "limp mode" or "pressure cutback mode" to prevent damage. You will likely experience:
| Probe | Measurement | Expected | |-------|-------------|----------| | A (5V ref) to C (GND) | 4.9–5.1V DC | ✔ | | B (Signal) to C (GND) | 0.5V (atmospheric) | 0.45–0.55V | | A to chassis ground | <0.1V drop | ✔ |
If signal voltage is >4.8V at key ON (no pressure), sensor is shorted internally or wrong type.
Doosan Fault Code VPV00105 (New) is primarily an electrical signal problem between the main hydraulic pump pressure sensor and the control unit. It demands immediate attention to prevent hydraulic inefficiency and potential engine stalling.
The most effective fix is almost always a new pressure sensor and a thorough cleaning of the electrical connector. However, always perform voltage and continuity tests before buying parts. By following the diagnostic roadmap in this guide, you can restore your Doosan machine to full operating power, clear the "New" fault, and return to the job site with confidence.
Need professional support? Save time and money by having your machine’s serial number ready and calling your regional Doosan (Develon) parts and service hotline with this article’s findings.
Disclaimer: This article is for informational purposes. Always consult the official Doosan service manual and safety procedures for your specific model year and serial number before performing repairs.
The Doosan fault code typically indicates an open circuit current below normal in the proportional valve of the hydraulic pump. JustAnswer Code Meaning
On machines like the Doosan DX180LC, this code points specifically to a failure in the electrical signal reaching the P1 pump proportional valve doosan fault code vpv00105 new
. The machine's control system has detected that the expected electrical current is missing or too low, preventing the pump from correctly adjusting its flow or pressure. JustAnswer Common Causes Electrical Wiring Issues
: A broken wire, loose connection, or corroded pins in the harness leading to the hydraulic pump. Faulty Proportional Valve
: The solenoid on the pump itself may have an internal failure. Blown Fuse or Relay
: A failed fuse or relay in the control circuit can cut power to the valve. Low Hydraulic Fluid
: While primarily an electrical code, severely low fluid levels can occasionally cause pressure sensors to trigger related errors. JustAnswer Troubleshooting Steps Inspect the P1 Pump
: Check the electrical connector on the proportional valve. Ensure it is clean and tightly seated. Verify Wiring
: Look for any signs of damage, fraying, or shorting along the harness from the pump to the main controller. Check Hydraulic Fluid
: Confirm that the hydraulic oil is at the proper level on the site glass. Reset the Code
: After checking connections, try to clear the code from the display. If the fault is "Active," the code will likely reappear immediately until the physical issue is fixed. Consult Technical Support When this fault is active, the machine enters
: If the wiring and solenoid check out, a factory reset or software update using the Doosan Monitoring Program (DMS) may be required to recalibrate the system. JustAnswer 19 Aug 2023 —
The Doosan fault code VPV001-05 indicates that the PUMP P/V (A) current is below normal. This is typically an electrical error suggesting an open circuit in the proportional pressure-reducing valve of the hydraulic pump. Error Breakdown
Component: Proportional Pressure-Reducing Valve for Pump A (P1 Pump).
Condition: The controller (V-ECU) detects that the electrical current flowing to the valve is lower than the expected operating range.
Symptoms: You may experience sluggish hydraulic response, loss of power under load, or a total "limp mode" where the machine operates at a fixed, reduced capacity. Troubleshooting & Solutions
Experts from JustAnswer and Scribd recommend the following steps:
Inspect Connections: Check the electrical connector on the proportional valve. Look for loose pins, corrosion, or moisture ingress.
Verify Wiring Integrity: Check the wiring harness between the pump and the controller for any breaks, pinches, or rubbing that could cause an open circuit.
Test the Valve Solenoid: Use a multimeter to check the resistance ( Disclaimer: This article is for informational purposes
) of the solenoid. For many Doosan excavators, a typical reading is approximately 25∘C25 raised to the composed with power C
Check Fuses and Relays: A blown fuse or faulty relay in the control circuit can prevent power from reaching the valve.
Monitor Hydraulic Fluid: While primarily an electrical code, ensure hydraulic fluid levels are correct to prevent secondary pressure sensor errors. Resetting the Code
Once the underlying issue is fixed, you can often clear the code by: Restarting the machine and cycling the ignition.
Using a dedicated diagnostic tool like the Doosan Laptop Diagnostic Tool (DLDT) for a factory software reset.
Do you have a multimeter on hand to test the resistance of the pump solenoid? Anyone know the cure for this on a Doosan? Thanks
Description VPV001 05 PUMP P/V (A), Current below normal Description PUMP ۷/٧ (A). Current below normal. Facebook·Paul Brown Anyone know the cure for this on a Doosan? Thanks
8mo. OCR: NO Real Time Failure Information Code Description VPV001 05 PUMP P/V （A), Current below normal Description PUMP ۷/٧ (A). Facebook·Paul Brown Doosan Dx55R Mini Excavator Check Engine Code E007748-04