TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 2. Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Check for power to horn switch. 1. If 24 to 28 Vdc are not measured
11. Horn Does Not Work - Continued.
(wire 121-YL) and BACKUP
Remove seven screws and
ALARM fuse is good, turn engine
washers and two screws and
start switch and battery disconnect
washers and remove panel from
switch to OFF position (TM 5-
operator station. Turn battery
3895-379-10). Repair or replace
disconnect switch and engine
wiring and connectors to water
start switch to on position (TM 5-
spray fuse holder (WP 0108 00).
3895-379-10). Touch positive (+)
probe of multimeter to terminal 1
2. If 24 to 28 Vdc are measured (wire
(wire 121-YL) and negative (-)
121-YL), go to Step 4.
probe of multimeter to good
ground.
4. Check for power at horn switch. 1. If 24 to 28 Vdc are not measured
Press and hold horn switch down.
at (wire 322-GY), turn engine start
Touch positive (+) probe of
switch and battery disconnect
multimeter to (wire 322-GY) and
switch to OFF position (TM 5-
negative (-) probe of multimeter
3895-379-10). Replace horn
to good ground.
switch (WP 0101 00).
2. If 24 to 28 Vdc are measured at
(wire 322-GY), repair or replace
wire 322-GY and connectors from
horn switch to horn assembly (WP
PANEL ASSEMBLY
SCREW
WASHER
SCREW
WASHER
HORN
SWITCH
WIRE
322-GY
WIRE 121-YL
COVER
401-213
0006 00-84
