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.
Remove cab instrument panel C (WP 0311). Check for 22 to 28 VDC between cab
instrument panel wire harness wire 1677 (white) at GEN PTO ENGAGED indicator
connector and a known good ground, with GEN PTO engaged.
If 22 to 28 VDC are not present, go to Step 5.
Put cab GENERATOR PTO switch to OFF position (WP 0004). Shut off
engine (TM 9-2320-347-10). Turn battery disconnect switch to OFF
position (WP 0007). Check for continuity across cab instrument panel wire harness
wire 1640 (black) from GEN PTO ENGAGED indicator connector to a known good
If there is no continuity, repair wire 1640 in cab instrument panel wire
harness if repairable (TM 9-2320-325-14&P), or replace cab instrument
panel wire harness (WP 0440).