TEST OR INSPECTION
Turn Off Clearance Lights (TM 9-2320-347-10). Turn Service Drive Lights Off
(TM 9-2320-347-10). Turn battery disconnect switch to OFF position (WP 0007).
Disconnect main wire harness driver side body wire harness connector. With a test
lead set, check for continuity across main wire harness wire 2640 (black) from main
wire harness connector, terminal 10 to a known good ground.
If there is continuity at both terminals, repair wire 2640 in driver side
body wire harness if repairable (TM 9-2320-325-14&P), or replace
driver side body wire harness (WP 0448).
If there is no continuity, repair wire 2640 in main wire harness if
repairable (TM 9-2320-325-14&P), or replace main wire
harness (WP 0455).