Yamaha XSR700 2018, Supplement Service Manual, Page: 83 / 96

ABS (ANTI-LOCK BRAKE SYSTEM)
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Fault code No. 63
3 Defective front wheel sensor or hy-
draulic unit assembly If the above items were performed and no malfunc-
tions were found, the wheel sensor or hydraulic unit
assembly is defective. Replace the wheel sensor or
hydraulic unit assembly.
Refer to “FRONT WHEEL” and “ABS (ANTI-LOCK
BRAKE SYSTEM)” in chapter 4. (Manual No.: B34-
F8197-E2)
Fault code No. 15
Item Front wheel sensor (open or short circuit)
Symptom Open or short circuit is detected in the front wheel sensor.
Order
Item/components and probable
cause
Check or maintenance job
Fault code No. 63
Item
Front wheel sensor power supply (voltage of power supply is
low)
Symptom
Power voltage supplied from the ABS ECU to the front 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 front wheel sensor and the
hydraulic unit assembly • Check that there is no short circuit between the
black terminal “1” and the white terminal “2”.
• Check that there is no short circuit between the
black terminal “3” and the black terminal “1”.
• If there is a short circuit, the wire harness is de-
fective. Replace the wire harness.
4. ABS ECU
5. Front wheel sensor
W B Gy W
B W B W / Y W G G / R
Y G G B / L Br / W
(B)
L / R L / B
B
B / G
R / W
R / L
3 2 1
4 5