TM 5-3895-379-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 2. Electrical Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Backup Alarm Does Not Work - 3. Check for power at backup alarm. 1. If 24 to 28 Vdc are not measured
7.
Remove decontamination kit
at wire 321-BR, wire is bad.
Continued.
from
decontamination
kit
Repair or replace wiring and
bracket. Remove four screws,
connectors from backup alarm to
washers and plate assembly from
backup alarm sending unit (WP
rear support assembly. Loosen
two screws and pull backup alarm
from rear support assembly. Turn 2. If 24 to 28 Vdc are measured at
wire 321-BR, go to Step 4.
battery disconnect switch and
engine start switch to ON position
(TM 5-3895-379-10). Touch
positive (+) probe of multimeter
to terminal 1 (wire 321-BR) and
negative (-) probe of multimeter
to support assembly.
WIRE 200-BK
REAR SUPPORT ASSEMBLY
COVER
WIRE 321-BR
SCREW
WASHER
SCREW
401-205
BACKUP ALARM
4. Check for good ground at backup 1. If zero ohms are measured, ground
alarm. Loosen screw and remove
is OK. Replace backup alarm (WP
wire 200-BK from backup alarm.
Set multimeter to read ohms.
Touch positive (+) probe of 2. If infinite ohms are measured,
ground is bad. Repair or replace
multimeter to 200-BK and
wire 200-BK and connectors from
negative (-) probe of multimeter
backup
alarm
to
ground
to good ground.
connection at frame (WP 0100
0006 00-75
