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 battery disconnect switch to OFF position (WP 0007). Check for continuity across
wire 1640 (black) terminal 2 at relay P8 to a known good ground.
If continuity is not present, repair wire 1640 in pump house power
distribution wire harness if repairable (TM 9-2320-325-14&P), or replace
pump house power distribution wire harness and block (WP 0457).