TM 5-3805-248-23-1
ELECTRICAL ACCESSORIES TROUBLESHOOTING PROCEDURES - CONTINUED
0011 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9.
Horn Is Inoperative.
WARNING
Remove all jewelry, watch, rings, etc. prior to disconnecting cables from batter-
ies or other electrical source. Items can come in contact with battery or electrical
source and cause electrical shock. Failure to follow this warning may cause
injury or death.
Make sure wheels are chocked and bowl is lowered to ground for all tests. Fail-
ure to do so may cause injury or death.
Eye protection must be worn when performing maintenance where components
or particles could fly out during procedure. Failure to take precautions may
cause injury.
NOTE
For detailed electrical diagram, refer to WP 0005 00.
1.
Check for air supply to air horn.
Go to Brakes System Troubleshooting
2.
Make sure black out lights are not on
If blackout lights are on, go to Malfunction
continuously with light switch in OFF
29, otherwise go to Test 3.
position.
3.
Bypass horn switch.
a. Place battery disconnect switch in
OFF position (TM 5-3805-248-10).
b. Connect a jumper wire between two
terminals of horn switch.
394-1639
