KEEWAY FACT 50 4T Maintenance Manual page 36

Diagnosis on steering lamp failure in illumination
Steering lamps at one side
are partly not light.
Remove the lamp covers and
check whether the bulbs are
burnt.
Y
.
Replace Measure the voltage
bulbs between the contact of
the power cord of lamp
holder and the negative
pole with a voltage
meter.
Voltage No voltage
available
Bad earth of lamp Open
holder or bad circuit
connection power cord
between steering of
lamp bulb and holder
lamp holder.
Remove the connector of steering lamp switch and use a lead
wire to short-circuit the input power cord of the switch and the
power cords connecting the left/right steering lamp.
The steering lamp is light.
Bad contact inside the steering
lamp switch.
Steering lamp failure in
Steering lamps at one side
are wholly not light.
Remove the lamp covers and
check whether the bulbs are
burnt.
N Y
Replace bulbs
Y
Open circuit of
output power
cord or
earth of lamp
holder at
of
breakdown side.
lamp
The steering lamp is not
light.
illumination
N
Remove the connector
of steering lamp switch
and check whether the
switch works normally
at the breakdown side
with an ohm meter.
N
Bad contact inside
the steering lamp
bad switch.
the
Turn the steering lamp switch and use
a lead wire or a screwdriver to short-
circuit two lugs of flasher.
The steering lamp is not
light.
Check whether there is power supply via the input power cord of
steering lamp switch with a test lamp.
36
All the steering lamps
are not light.
Press the horn button and check whether
the horn works normally.
The horn makes
loud sound
Normal battery Battery power supply
power supply shortage
Remove the steering lamp
cover and check whether the
bulb is burnt.
N
Replace steering lamp
bulb and check whether
the rectifier regulator
works normally.
The steering lamp is
light.
The flasher
broken.
The horn can not
make or makes
coarse sound.
Y
is