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.
Sensor failure or problems due to moisture and corrosion may occur. Inspect pressure
transducer and connector for damaged terminals, loose water seal wedge-lock
connections, moisture, corrosion, and other foreign objects, using a bright light.
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 pump operator's panel pressure governor
12-terminal wire harness connector. Disconnect pump operator's panel pressure
governor pressure transducer wire harness connector. With a test lead set, check for
governor 12-terminal connector, terminal 6.
harness (WP 0460).