KEEWAY FACT 50 4T Maintenance Manual page 33

Diagnosis on motorcycle lamp failure in illumination
Remove the connector between the conductor
bundle of electromagnetic motor and the cable
assembly; check whether there is power
supply via the output conductors of the
lighting coil with a test lamp.
The test lamp
is not light.
Open circuit or short
circuit of lighting
coil or output wires
The lamp is light
Short circuit inside the
rectifier regulator.
Replace the headlamp bulb and check
all the other lamp bulbs.
Motorcycle
failure in illumination
AC power supply system
for illumination
The test lamp
is light.
Start the engine and remove the
connector between the rectifier
regulator and the cable assembly.
The lamp is not
light
Dismantle
assembly and check whether
any bulb is burnt.
Y
Use a lead wire to short circuit the
power wire and the output wire of
the illumination switch.
lamp
DC
system for illumination
Press the horn button or
turn the steering lamp
switch.
The horn can make loud
sound and the steering
lamp is light.
Normal
battery power
supply
the headlamp
Check whether there is power output
via input wires of illumination switch
with a test lamp.
Y
33
power supply
The horn can not make
loud sound
steering lamp is not light.
Rapidly strike a lead wire on
the negative/positive poles
of battery and check spark.
No spark Spark
Power shortage 1. Check whether the
fuse is burnt out.
of battery
2. Check whether open
circuit
circuit
between the battery
N
and ignition switch.
3. Check whether open
circuit
circuit occurs to the
ignition switch.
N
Open circuit or short circuit between
the electromagnetic motor/ ignition
switch and the illumination switch.
and the
or short
occurs
or short