TM 5-3805-298-23-1
0122
Table 1. Dome Light Does Not Operate - Continued.
0122
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Using digital multimeter
Dome Light Does Not
Continuity Replace lower cab wiring
(WP 0174), test for continuity
Operate - Continued
harness (WP 0291).
between connector C-C10
Proceed to Test Step 23.
(WP 0012, Figure 86) terminal 7
No Continuity Replace front frame
and ground.
wiring harness (WP 0301).
Proceed to Test Step 23.
Test Step 17. Test Lighting Fuse
Replacement.
1. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
2. Observe operation of headlights
Headlights Operate Proceed to Test
(TM 5-3805-298-10).
Step 23.
Headlights Do Not Operate Proceed
to step 3.
3. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
4. Remove lighting fuse from fuse
module 1 (WP 0012, Figure 44,
Item 8).
5. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to Test Step 11.
between terminals of lighting fuse.
Resistance Greater Than 5.0 Ohms
Proceed to Test Step 18.
Test Step 18. Test for Faulty Blackout
1. Remove blackout horn relay
(TM 5-3805-298-10) from fuse
panel.
2. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
(WP 0174), measure resistance
Proceed to step 3.
between blackout horn relay
Resistance Less Than 288 Ohms
(WP 0012, Figure 154) terminal 85
Replace blackout horn relay (TM 5-
and terminal 86.
3805-298-10).
Proceed to Test Step 23.
3. Remove blackout headlight relay
(TM 5-3805-298-10) from fuse
panel.
4. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
(WP 0174), measure resistance
Proceed to step 5.
between blackout headlight relay
Resistance Less Than 288 Ohms
(WP 0012, Figure 154) terminal 85
Replace blackout headlight relay
and terminal 86.
(TM 5-3805-298-10).
Proceed to Test Step 23.
0122-8
