TM 5-5420-226-20-1
(
Symptom-31
DETAiLED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- HULL
POWER
(Continued)
FROM
STEP
.
.
Check CKT 1 from connector at voltage regulator to
connector at engine disconnect for continuity.
Second Technician
(Left Top Deck Grille Doors)
l Open left top deck grille doors to gain access to engine
disconnects.
l Disconnect bulkhead engine disconnect harness
connector
from engine disconnect.
l Connect jumper wire from contact C (CKT 1) of
bulkhead engine disconnect
harness connector
to
vehicle ground.
First Technician
(Commander’s
Station)
l Remove right-hand floor access cover (page 17-9).
l Disconnect front accessory harness connector (CKTS 1,
2, 415A. 478) from voltage regulator.
l Set multimeter to OHMS X 1 scale and “zero”
meter, or use STE/ICE
Test No. 91 (page 4-83).
l Connect red probe of meter to contact D (CKT 1)
of front accessory harness connector
and black
probe to ground.
l Check if meter indicates continuity.
Does meter indicate continuity?
I
Check front accessory harness
(CKT 1) from connector at
voltage regulator to connector at
bulkhead disconnect for
continuity.
,
See Step
@
.
/
\
m
k!!
JUMPER
WIRE
%JEHICLE
A,-
Pq
GROUND
CONTACT
C
\
;~/
ENGINE
“’T’)
V/
‘
DISCONNECTS
~
!-
,!
.
--$
of
,.
.
.-
,.
*,
,-
\,**
----
0
-n
l
o
II
TO
VEHICLE
CONTACT
D ,
I
(CKT 1)
1
TA107O87
4-398
