TM 5-3805-298-23-2
0141
Table 1. Horn Does Not Operate - Continued.
0141
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Horn Does Not Operate -
6. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
Continued
(WP 0174), measure resistance
Proceed to step 7.
between blackout turn/flash relay
Resistance Less Than 288 Ohms
(WP 0012, Figure 154) terminal 86
Replace blackout turn/flash relay
and terminal 85.
(TM 5-3805-298-10).
Proceed to Test Step 24.
7. Remove blackout brake light relay
(TM 5-3805-298-10) from fuse
panel.
8. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
(WP 0174), measure resistance
Proceed to step 9.
between blackout brake light relay
Resistance Less Than 288 Ohms
(WP 0012, Figure 154) terminal 86
Replace blackout brake light relay
and terminal 85.
TM 5-3805-298-10).
Proceed to Test Step 24.
9. Remove blackout backup alarm
relay (TM 5-3805-298-10) from
fuse panel.
10. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
(WP 0174), measure resistance
Proceed to step 11.
between blackout backup alarm
Resistance Less Than 288 Ohms
relay (WP 0012, Figure 154)
Replace blackout backup alarm relay
terminal 86 and terminal 85.
(TM 5-3805-298-10).
Proceed to Test Step 24.
11. Remove blackout flood light relay
(TM 5-3805-298-10) from fuse
panel.
12. Using digital multimeter
Resistance 288 Ohms to 414 Ohms
(WP 0174), measure resistance
Proceed to Test Step 20.
between blackout flood light relay
Resistance Less Than 288 Ohms
(WP 0012, Figure 154) terminal 86
Replace blackout flood light relay
and terminal 85.
(TM 5-3805-298-10).
Proceed to Test Step 24.
Test Step 20. Test for Shorted Wiring
Harness.
1. Turn the military light switch to
OFF position (TM 5-3805-298-10).
2. Using digital multimeter
Continuity Proceed to Test Step 21.
(WP 0174), test for continuity
No Continuity Proceed to Test
between connector C-C31
Step 22.
(WP 0012, Figure 74) terminal D1
and terminal D2.
0141-10
