TM 5-3805-248-23-1
ELECTRICAL ACCESSORIES TROUBLESHOOTING PROCEDURES - CONTINUED
0011 00
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
b. Set multimeter to appropriate ohm
9.
Horn Is Inoperative -
(Ω) range (WP 0018 00).
Continued.
c. Connect multimeter positive lead to
black wire of horn solenoid (harness
side) and multimeter negative lead
to chassis ground.
394-1642
d. Place battery disconnect switch in
1. If continuity is not indicated, repair
ON position (TM 5-3805-248-10).
open circuit between horn switch and
ground (WP 0018 00).
2. If continuity is indicated, replace horn
switch (WP 0066 00).
3. If problem still exists, replace horn
solenoid (WP 0219 00).
10. Backup Alarm 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 parti-
cles could fly out during procedure. Failure to take precautions may cause injury.
NOTE
For detailed electrical diagram, refer to WP 0005 00.
1.
Make sure blackout lights are not on
1. If blackout lights are on continuously,
go to Malfunction 29.
continuously with light switch in OFF
position.
2. If blackout lights are operating
correctly, go to Test 2.
