Yadea M6L, Service Menu

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Interface definition
Connector
42
Color Color Color
4
5
6
1
2
3 7
8
9
PIN PIN PIN
Fault diagnosis and maintenance
Phenomenon confirmation Cause analysis Troubleshooting
Low battery Check battery charging status
Throttle icon is always
bright, indicating that the
throttle fault, the motor can
not run.
Brake icon is always
bright, indicating that the
brake fault, the motor can not
run.
Brake icon is always
bright, indicating that the
brake fault, the motor can
not run.
Controller icon is always
bright, indicating that the
controller fault, the motor
can not run.
Motor icon is always
bright, indicating that the
motor or hall fault, the motor
can not run.
1.Motor coil is broken or
shorted
2.Hall breakdown
3.Line is loose
1.MOS pipe open or short
circuit
2.Line is loose
1.Throttle hall open or
short circuit
2.Line is loose
1.Manually turn the rear wheel, turn can
judge the coil short circuit, use a multi-
meter in the case of rotation to measure
whether the coil is open
2.Use the multimeter to measure the
resistance of Hall's three feet, and judge
its good or bad
3.Use a multimeter to measure whether
the lines are open
1.Disassemble the motor connection cable,
use the multimeter to measure the
resistance of the controller phase wire,
and judge its good or bad
2.Check the connection status of the
controller leads
1.Use a multimeter to measure whether
there is a 5V voltage at the Hall input;
Then detect whether there is a voltage of
0.8V ~ 4.2V at the output terminal to
determine whether it is good or bad
2.Check the connection status of the
throttle leads
1.Whether the trace of the brake cable is
smooth and whether the return spring
stroke is normal
2.Use a multimeter to measure whether
the brake lines are normal
Fault
phenome-
non
1.Brake handle does not
return to position,
mechanical failure of
brake system
2.Brake switch line is
short-
circuited
Black
green
orange Yellow/red
Blue
light blue Blue
Red/Black
NC
Electrical system