71
ENGLISH
2.5 Analysis of illuminating light
illuminating system of DC supply
Press the horn button or turn the
switch of direction indicator lamp
The horn could utter
sounds and the direction
indicator lamp lights up.
Horn and lamp
are not working.
The power
supply from
battery is normal
strike the negative and positive
of battery by using a wire, check
the spark. Or measure the
voltage with multimeter.
starting engine and disconnecting
the plug connector from rectifier
regulator to the vehicle circuit
No spark or the
battery is low
There is spark
or the voltage
is normal
the batery is dead
[1]Check whether the fuse fusing
[2]Check the circuit from battery
to the ignition switch
[3]Check whether the ignition
switch is disconnection or short
circuit
All illuminating light don’t illuminate.
AC power supply illuminating system
Remove the connecting component between
the lead bundle of generator and vehicle cable.
Check whether there is power export from the
export lead of illuminating coil with a bulb.
The bulb doesn’t
illuminate.
The bulb illuminates.
The the illuminating
coil of generator or its
export lead has open
circuit or short circuit.
Illuminating light can illuminate.
Illuminating light still
cannot illuminate.
The inner of rectifier has short circuit.
Disassemble head light assembly,and
check whether its bulb is burned-out.
Replace the bulb of head light
and check whether other bulbs
are burned-out.
Check whether there is power
export from the power import lead of
illuminating switch with the method of
connecting a bulb.
With a lead,make short circuit between
electric source lead of illuminating
switch and export lead.
Generator or the circuit
between ignition switch
and illuminating switch has
open circuit or short circuit.
After short circuit
connecting,illuminating light
still doesn’t illuminate.
A f t e r s h o r t c i r c u i t
connecting,illuminating
light will illuminate.
The connecting point of inner
illuminating switch has bad
connection.
The circuit between illuminating
switch and illuminating light has open
circuit or short circuit.
No
Yes
No
Yes
No
Yes
