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). Remove passenger side
crew cab access panel (WP 0499). Remove pump house panel P (WP 0540).
Disconnect pump house wire harness pump engine wire harness connector. Turn
battery disconnect switch to ON position (WP 0007). While an assistant puts cab or
pump operator's panel START PUMP ENGINE STOP switch to START position
(WP 0022), check for 22 to 28 VDC between pump house wire harness wire 4072
(green) at pump house wire harness pump engine wire harness connector, terminal and
a known good ground.
If 22 to 28 VDC are present, go to Step 7.