TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
SUPPORT
SYSTEM
- VEHICLE
LIGHTING
Symptom-66
HIGH
BEAM
OR LOW
BEAM,
IN ONE
SERVICE
HEADLIGHT
LAMP
WILL
NOT
LIGHT,
OR SERVICE
TAILLIGHT
WILL
NOT
LIGHT
(PANEL
LIGHT
SWITCH,
AT BRIGHT,
DIM,
OR OFF).
~NOT,
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 if service
taillight
will light.
First
Technician
(Operators
Station)
l Set MASTER
BATTERY
switch
ON.
l Set LIGHTING
CONTROL
switch
to SER
DRIVE
and
PANEL
switch
to BRT.
Second
Technician
(Rear
of Vehicle)
l Visually check if service taillight
is working.
I
SERVICE
TAILLIGHT
Does service
taillight
light?
(2J
/
l Check if high beam or low
beam in bad service
headlight
lamp will not light.
l See Step
@
r
\
.
TA10733O
4-641