TEST OR INSPECTION
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle. Jewelry can catch on equipment and cause serious injury. Jewelry
and tools may short across electrical circuits and cause damage to equipment, or
severe burns or electrical shock to personnel.
Turn water pump engine off (WP 0022). Turn battery disconnect switch to OFF
position (WP 0007). Open pump house panel A (WP 0539). Disconnect pump
operator's panel wire harness ECU wire harness connector. Open pump operator's
panel housing (WP 0325). Disconnect pump operator's panel wire harness pump
operator's panel pressure governor 12-terminal wire harness connector. With a test
lead set, check for continuity across wire 1967 from pump operator's panel pressure
governor 12-terminal connector, terminal 9 to ECU connector, terminal 23.
If continuity is not present, repair wire 1967 in pump operator's panel wire
harness if repairable (TM 9-2320-325-14&P), or replace pump operator's
panel wire harness (WP 0459).