Yamaha FJR13AG, Service Manual

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ABS (ANTI-LOCK BRAKE SYSTEM)
8-216
Fault code No. ABS_63
Fault code No. ABS_64
Fault code No. ABS_63 Symptom Front wheel sensor power is abnormal.
Order Item/components and probable cause Check or maintenance job
1 Short circuit in wire harness. • 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 frame
ground and the black terminal “2”.
• If there is a short circuit, the wire harness is defective.
Replace the wire harness.
TIP
Disconnect the ABS ECU coupler before checking the
wire harness.
2 Short circuit in front wheel sensor lead. • Check that there is no short circuit between the white
terminal “3” and the gray terminal “4”.
• Check that there is no short circuit between the frame
ground and the white terminal “3”.
• If there is a short circuit, the front wheel sensor is de-
fective. Replace the front wheel sensor.
5. ABS ECU
6. Front wheel sensor
3 Hydraulic unit internal malfunction. Replace the hydraulic unit assembly.
W Gy W B
W B G / W L / W W / Y
L / B B / W Gy W G / R
L / R Y W / L G / Y Sb Br / W
B / W
B / G
R / W
R / L
L / Y
2 3 4 1
6 5
Fault code No. ABS_64 Symptom Rear wheel sensor power is abnormal.
Order Item/components and probable cause Check or maintenance job
1 Short circuit in wire harness. • Check that there is no short circuit between the gray
terminal “1” and the white terminal “2”.
• Check that there is no short circuit between the frame
ground and the white terminal “2”.
• If there is a short circuit, the wire harness is defective.
Replace the wire harness.
TIP
Disconnect the ABS ECU coupler before checking the
wire harness.