No fluid in the pump can cause a low motor current error.
An outlet restriction does not exist. Verify relief valves are in the SPRAY position
Disconnect motor power connector at MCM port #15. Measure resistances at motor power connector.
Must read less than 8 ohms resistance between each pair of motor power leads (2 to 3, 3 to 4, 2 to 4). If any readings greater than 8 ohms and previous step ("Loose/broken power connection or motor cable") were verified, then motor may need replacement.