TM 5-5420-226-20-1
(
Symptom-1
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT.
STARTING
(Continued)
Check
engine
electrical
harness
(CKT 14) at starter
low voltage
protection
relay for electrical
power.
First
Technician
(Left
Side of Engine)
l Connect red probe of meter to contact A (CKT
14) of
engine electrical
harness
connector
and black probe to
ground.
Second
Technician
(Operators
Station)
.
Set MASTER
BATTERY
switch
ON.
l Press and release STARTER
switch.
First
Technician
(Left
Side of Engine)
.
Check
if meter
indicates
[8 to 30 volts dc when
STARTER
switch
is pressed,
Did meter
indicate
18 to 30 volts dc?
n
Replace
low voltage
protection
relay (page
10-227).
w
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I
u,
D
-m
n+
o
,,,,,;
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CONTACT
A
TA106794
4-105