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 operator's panel housing (WP 0325). Disconnect
pump operator's panel wire harness water pump engine gauge panel wire harness
connector. Start water pump engine (WP 0022). With a test lead set, check for 22 to 28
VDC at water pump engine gauge panel connector wire 1118 terminal 4, to a known
If 22 to 28 VDC is not present, repair wire 1118 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).