TM 5-5420-226-20-1
Symptom-9
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- POWERPLANT,
STARTING
(Continued)
~
Check transmission harness connector (CKT 486)
at manifold heater fuel return solenoid for
Second
Technician
(Rear
Grille
Doors)
l Disconnect
transmission
harness
connector
from
manifold
heater
fuel return
solenoid
connector.
l Set multimeter
to measure
18 to 30 volts
dc or use
STE/ICE
Test
No.
89 (page
4-81).
l Connect
red probe
of meter
to contact
A (CKT
486)
of transmission
harness
connector
at manifold
fuel
return
solenoid
and black
probe
to ground.
First
Technician
(Operator’s
Station)
l At the same time press STARTER
button
and
manifold
preheat
switch,
then
release.
Did meter indicate 18 to 30 volts dc?
A
I
Q&i&
‘
.%
&’-
-.
0-
n
.l
0
TO VEHICLE
GROUND
1~
r
NO
CKT 486
)
l Check transmission harness
(CKT 486) for continuity from
connector at transmission
disconnect to connector at
manifold heater fuel return
solenoid.
l See Step @
.
—
TA106929
4-240
