TEST OR INSPECTION
Check if driver side white dome light operates with push button.
If driver side white dome light does not operate with push button,
replace driver side dome light (WP 0357).
If driver side white dome light does operate with push button, replace
passenger side dome light (WP 0357).
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). Disconnect main wire
harness crew cab wire harness connector. Turn battery disconnect switch to ON
position (WP 0007). Check if 22 to 28 VDC are present at main wire harness crew cab
wire harness connector wire 1047, terminal A and a known good ground.
If 22 to 28 VDC are present, repair wire 1640 in crew cab wire harness if
repairable (TM 9-2320-325-14&P), or replace crew cab wire
harness (WP 0446).