Yamaha FJR1300AS(X), Service Manual

Page: 654 / 754

ABS (ANTI-LOCK BRAKE SYSTEM)
8-177
Fault code No. AbS_63 Symptom Front wheel sensor power is abnormal.
Order Item/components and probable
cause
Check or maintenance job Reinstatement
confirmation
method
1 Short circuit in wire harness. • Check that there is no short cir-
cuit between the white terminal
“1” and the black terminal “2”.
• Check that there is no short cir-
cuit between the frame ground
and the black terminal “2”.
• If there is a short circuit, the
wire harness is defective. Prop-
erly repair or replace the wire
harness.
NOTE:
Disconnect the ABS ECU coupler
before checking the wire har-
ness.
Turn the main
switch to “ON”
and check that
the ABS warn-
ing light comes
on for 2 sec-
onds, then
goes off.
2 Short circuit in front wheel sensor
lead. • Check that there is no short cir-
cuit between the white terminal
“3” and the gray terminal “4”.
• Check that there is no short cir-
cuit between the frame ground
and the white terminal “3”.
• If there is a short circuit, the
front wheel sensor is defective.
Properly repair or replace the
front wheel sensor.
5. ABS ECU
6. Rear wheel sensor
3 Hydraulic unit internal malfunction. Replace the hydraulic unit as-
sembly.
W Gy W B
W B Br / B L / W W / Y
L / B B / W Gy W G / R
L / R Y / G W / L G / Y Sb Br / W
B / W
B / G
R
R / L
2 3 4 1
6 5