TM 5-3805-298-23-1
0122
Table 1. Dome Light Does Not Operate - Continued.
0122
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Dome Light Does Not
Test Step 3. Test for Voltage at Lower
Operate - Continued
Cab Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector G-C3
(WP 0012, Figure 139) from
connector C-C24 (WP 0012,
Figure 140).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
4. Using digital multimeter
Voltage 18 to 26 V Replace upper cab
(WP 0174), test for voltage
wiring harness (WP 0292).
between connector C-C24
Proceed to Test Step 23.
(WP 0012, Figure 140) terminal 11
Voltage Less Than 18 V Replace
and terminal ground.
lower cab wiring harness (WP 0291).
Proceed to Test Step 23.
Test Step 4. Test for Open Forward
Horn Fuse.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove forward horn fuse from
fuse panel (TM 5-3805-298-10).
3. Using digital multimeter
Resistance 5.0 Ohms or Less Install
(WP 0174), measure resistance
forward horn fuse (TM 5-3805-298-10).
between terminals of forward horn
Proceed to Test Step 5.
fuse.
Resistance Greater Than 5.0 Ohms
Replace forward horn fuse (TM 5-3805-
298-10).
Proceed to Test Step 13.
Test Step 5. Test Operation of
Headlights.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
2. Turn the military light switch to
Ser. Drive position and lower
switch to OFF (TM 5-3805-298-
10).
3. Observe operation of headlights
Headlights Operate Proceed to Test
(TM 5-3805-298-10).
Step 6.
Headlights Do Not Operate Proceed
to Test Step 10.
0122-3
