No fluid in the pump can cause a low motor current error. Verify:
An outlet restriction does not exist. Verify relief valves are in 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 (M1 to M2, M1 to M3, M2 to M3). If any readings greater than 8 ohms and previous step ("Loose/broken power connection or motor cable") were verified, then motor may need replacement.