TM 5-3805-298-23-1
0124
Table 1. One or Both Headlights Do Not Operate - Continued.
0124
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Using digital multimeter
Voltage 18 to 26 V Replace front
One or Both Headlights Do
(WP 0174), test for voltage
roading light wiring harness (WP 0274).
Not Operate - Continued
between connector LE-C7
Proceed to Test Step 20.
(WP 0012, Figure 147) terminal 6
Voltage Less Than 18 V Replace
and terminal 2 (ground).
front frame wiring harness (WP 0301).
Proceed to Test Step 20.
Test Step 6. Test for Open Lighting
Fuse.
1. Turn battery disconnect switch to
OFF position (TM 5-3805-298-10).
2. Remove left engine access panel
(WP 0350).
3. Remove lighting fuse from fuse
module 1 (WP 0012, Figure 44,
Item 8).
4. Using digital multimeter
Resistance 5.0 Ohms or Less Install
(WP 0174), measure resistance
lighting fuse (WP 0012, Figure 44,
between terminals of lighting fuse.
Item 8).
Proceed to Test Step 7.
Resistance Greater Than 5.0 Ohms
Replace lighting fuse (WP 0012,
Figure 44, Item 8).
Proceed to Test Step 13.
Test Step 7. Test Blackout Headlight
Relay.
1. Swap blackout headlight relay with
blackout horn relay at fuse panel
(TM 5-3805-298-10).
2. Turn battery disconnect switch ON
position (TM 5-3805-298-10).
3. Observe operation of headlights
Headlights Operate Swap blackout
(TM 5-3805-298-10).
headlight relay back to blackout horn
relay position and replace blackout
headlight relay (TM 5-3805-298-10).
Proceed to Test Step 20.
Headlights Do Not Operate Proceed
to Test Step 8.
0124-4