TM 5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-33
INDICATOR
- GAGE
ENGINE
OIL TEMPERATURE
GAGE
SHOWS
HIGH
OR NO TEMPERATURE
(POWER-
PLANT
WARNING
LAMP
NOT
ON — ENGINE
RUNNING
— ALL
OTHER
GAGES
This procedure
is to be performed
by
two
persons.
The
lead
person
is
referred
to as the first technician
and
shall direct the activity
of the second
person
called the second
technician.
._
Check
gage
instrument
panel
harness
(CKT 27) at
ENGINE
TEMP
indicator
gage
for electrical
power.
First
Technman
(Operator’s
‘Station)
l Set MASTER
BATTERY
switch
OFF.
l Displace gage instrument
panel (page 10-111).
l Set multimeter
to measure
18 to 30 volts dc, or use STE/
ICE
Test
No. 89 (page
4-81).
l Disconnect
gage instrument
panel
harness
connector
(CKT
27) from
ENGINE
TEMP
indicator
gage.
l Connect
red probe
of meter
to gage instrument
panel
harness
connector
(CKT
27) and black probe to vehicle
ground.
l Set MASTER
BATTERY
switch
ON.
l Check if meter indicates
18 to 30 volts dc.
Does meter
indicate
18 to 30 volts dc?
m
T
o-
+
0
TO VEHICLE
GROUND
ENGINE
TEMP
GAGE
.
CKT 27
(
GAGE
INSTRUMENT
PANEL
(REAR
VIEW)
)
Repair
gage
instrument
panel
harness
(page
10-298).
1~
NO
D=EI
TA107114
4-425
