TM
5-5420-226-20-1
Symptom-65
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- VEHICLE
LIGHTING
(Continued)
FROM
STEP
o2I
Check headlight
base harness
connector
(CKT 20), at
headlight
assembly
that does not work, for electrical
power.
Second
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
OFF.
First
Technician
(Front
of Vehicle)
l Remove headlight
assembly
that
does not work
(page
10-172).
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
F (CKT
20) of
headlight
base harness
connector
and black
probe
to
ground.
Second
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
ON.
First
Technician
(Front
of Vehicle)
l Check if meter indicates
18 to 30 volts dc.
Does meter
indicate
18 to 30 volts dc?
I
7
0-
+
0
TO VEHICLE
\
GROUND
\
CONTACT
F
HEADLIGHT
BASE
HARNESS
CONNECTOR
Replace
headlight
assembly
(page
10-172).
I
*
L
TA107328
4-639