TEST OR INSPECTION
While an assistant puts and holds pump operator's panel PUMP PRIMER switch to on
position (WP 0004), check for 22 to 28 VDC between pump house wire harness wire
1590 (red) at pump prime primer valve control solenoid and a known good ground.
If 22 to 28 VDC are not present, go to Step 57.
Turn battery disconnect switch to OFF position (WP 0007). Check for continuity across
pump house wire harness wire 1640 (black) from pump prime primer valve control
solenoid terminal to a known good ground.
If continuity is present, replace pump prime primer valve control
solenoid (WP 0266).
If continuity is not present, repair wire 1640 in pump house wire
harness if repairable (TM 9-2320-325-14&P), or replace wire harness