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
pump house power distribution wire harness wire 1640 (black) from pump house power
distribution block relay P5, terminal 2 to a known good ground.
If there is no continuity, replace pump house power distribution wire
harness and block (WP 0457).
Check for continuity across wire 1687 (brown) from pump house power distribution
block relay P5, terminal 5 to pump house cooling fan temperature switch, terminal.
If there is continuity, go to Step 10.