: Unplug the connector for Pump P/V (A). Check for green corrosion (moisture ingress) or bent pins. Use a dedicated Electrical Contact Cleaner if you see any buildup. 2. Resistance Testing (The "Ohm" Test)
Doosan machines experience vibration. The harness running from the main controller down the side of the engine block to the pump often rubs against the chassis or the engine mount.
: Measure the resistance (Ohms) of the solenoid coil itself. Compare this value to the manufacturer's specification in the Doosan Shop Manual . A reading of infinity indicates a dead solenoid. Reset and Test : After securing connections or replacing parts, attempt to reset the error code via the monitor panel to see if it persists. JustAnswer
: Moisture or crud in electrical connectors, especially in machines used in wet environments.
