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.
Disconnect cab instrument panel wire harness cab power distribution wire harness
connector. With a lead test set, check for 22 to 28 VDC between wire 1186 (gray) at
cab instrument panel wire harness cab power distribution wire harness connector,
terminal 15 and a known good ground.
If 22 to 28 VDC are present, repair wire 1186 in cab instrument panel wire
harness if repairable (TM 9-2320-325-14&P), or replace cab instrument
panel wire harness (WP 0440).