Fault Diagnostic Program Of Direction Indicator Lamp - ZONGSHEN ZS125-80 Service Manual

2.8 fault diagnostic program of direction indicator lamp

Some turning lights of one side
don't illuminate.
Remove the cover of turning
light and check whether of
turning light is burned-out.
No
Yes
Measure the voltage
R e p l a c e
of connecting point
of turning
of light holder power
light.
wire to the ground
with voltage meter.
The voltage is normal The voltage is not
normal and there is no
and there is voltage
display. voltage display.
The connection of
The power wire of
light holder is bad
holder has open
or the connection
circuit.
between direction
indicator light bulb
and holder is bad.
After short circuit,turning light still
cannot illuminate.
Remove the connecting component of turning lights.
With a lead,make short circuit from the power import
of turning light switch to the power lead of left/right
turning light.
Yes
After short circuit,turning light will
illuminate.
The inner connecting point of turning light
switch has bad connection.
Turning light doesn't illuminate.
All turning light of one side
don't illuminate.
Remove the cover of turning light
and check whether of turning light
is burned-out.
Yes
R e m o v e t h e c o n n e c t i n g
R e p l a c e o f
component of turning light switch.
turning light.
Measure the turning light switch
with ohmic meter and check
whether its problem is solved.
Yes
The side export
power wire has
open circuit or the
light holder has
bad connection.
Turn on/off turning light switch.
Make short circuit for two ends of
flasher with a lead or a screwdriver.
Yes
After short circuit,turning light
can illuminate.
No
Af ter shor t circuit,turning light still
cannot illuminate.
Check whether the power import lead of turning
light switch has power export with a method of
connecting a bulb.
Yes
The bulb can
illuminate.
The power lead of
turning light has open
circuit or short circuit.
All turning light don
illuminate.
Press horn button and
check electric horn.
No
Electric horn
makes retund
sound.
The battery is
low.
No
The inner connecting
point of turning light
Remove the cover of
s w i t c h h a s b a d
turning light and check
connection.
whether of turning light is
burned-out.
Yes
Replace of turning light
and check whether the
commutated adjuster
works well.
No
F l a s h e r i s
damaged.
No
The bulb cannot
illuminate.
The circuit between ignition switch
and flasher or between flasher and
turning light switch has open circuit
or short circuit.
Electric horn
makes no sound
or is barbarous.
T h e p o w e r
supply of storage
battery is normal.
No
73