Yamaha MBK X-MAX 300 2017 Service Manual page 413

Fault code No. 63
Fault code No.
Item
Symptom
Order Item/components and probable cause
1 Short circuit in the wire harness between
the front wheel sensor and the hydraulic
unit assembly
2 Defective front wheel sensor
3 Defective hydraulic unit assembly
ABS (ANTI-LOCK BRAKE SYSTEM)
63
Front wheel sensor power supply (voltage of power supply is low)
Power voltage supplied from the ABS ECU to the front wheel sensor is
too low.
Check or maintenance job
• Check that there is no short circuit between the green
terminal "1" and the blue terminal "2".
• Check that there is no short circuit between the black/
white terminal "3" and the green terminal "1".
• If there is a short circuit, the wire harness is defective.
Replace the wire harness.
4. ABS ECU
5. Front wheel sensor
• Check that there is no short circuit between the black
terminal "1" and the white terminal "2".
• If there is a short circuit, the wheel sensor is defective.
Repair or replace the wheel sensor.
3. ABS ECU
4. Front wheel sensor
Replace the hydraulic unit assembly.
Refer to "ABS (ANTI-LOCK BRAKE SYSTEM)" on page
4-63.
8-108
G L Br Y W W/L W/B
R
R/L
G/Y Y/B Y/B Br/W L/R L/B B/W
G L Br Y W W/L W/B
R
R/L
G/Y Y/B Y/B Br/W L/R L/B B/W
3
1 2
B/W
G L W B
B
4
5
2 1
B/W
G L W B
B
3
4