KEEWAY FACT 50 4T Maintenance Manual page 38

Diagnosis on brake lamp failure in illumination
Replace
board of brake lamp
Spark available
Short circuit or open circuit between the brake lamp
switch and the brake lamp.
Diagnosis on power shortage of battery
Y
Adjust or replace the brake
lamp switch.
Disassemble the cover of brake lamp and check
whether the circuit board is burnt.
Y
the circuit
The brake lamp is not
light.
Use a screwdriver or a lead wire to strike the
power lead of brake lamp with the earth;
check the spark.
Check whether the brake
Turn the ignition switch to "OFF" position; disassemble the negative cable from
the battery and connect the negative/positive electrode of ampere meter to the
negative/positive terminal of battery; check leakage current.
Leakage current is lower than
the required value.
Brake lamp failure
in illumination
Use a lead wire to short-circuit two terminals or two terminal pins
of brake lamp switch.
Short circuit or open circuit between the ignition switch or
brake lamp switch.
Power shortage of
battery
lamp is always light.
38
N
The brake lamp is light.
Improper adjustment
brake lamp switch or bad
contact inside.
No spark
N
Leakage current is higher than the required
value. (Normally, the leakage current is
required to be no more than 1mA.)
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