Yamaha MBK XMAX 2014, Руководство по обслуживанию, Страница: 437 / 482

ABS (ANTI-LOCK BRAKE SYSTEM) (for YP125RA)
8-124
Fault code No. 64
Item
Rear wheel sensor power supply (voltage of power supply is
low)
Symptom
Power voltage supplied from the ABS ECU to the rear wheel
sensor is too low.
Order
Item/components and probable
cause
Check or maintenance job
1 Short circuit in the wire harness be-
tween the rear wheel sensor and the
hydraulic unit assembly • Check that there is no short circuit between the
white terminal “1” and the black terminal “2”.
• Check that there is no short circuit between the
black/white terminal “3” and the white terminal
“1”.
• If there is a short circuit, the wire harness is de-
fective. Replace the wire harness.
4. ABS ECU
5. Wheel sensor
2 Defective rear wheel sensor • Check that there is no short circuit between the
gray terminal “1” and the white terminal “2”.
• If there is a short circuit, the wheel sensor is de-
fective. Repair or replace the wheel sensor.
3. ABS ECU
4. Wheel sensor
3 Defective hydraulic unit assembly Replace the hydraulic unit assembly.
Refer to “ABS (ANTI-LOCK BRAKE SYSTEM) (for
YP125RA)” on page 4-62.
W Gy B W
R B
B B W
P Sb
W W W / R
G / Y G / L G / W B / W
B / W
Br / W
W / Y R / L
3
2
5
1
4
W Gy B W
R
B
B B W
P Sb
W W W / R
G / Y G / L G / W B / W
B / W
Br / W
W / Y
R / L
2
4
1
3