Yamaha FJR13AG, Service Manual

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ABS (ANTI-LOCK BRAKE SYSTEM)
8-205
Fault code No. ABS_15
Fault code No. ABS_15 Symptom No continuity in the front wheel sensor circuit.
Order Item/components and probable cause Check or maintenance job
1 Connections
• Front wheel sensor coupler
• ABS ECU coupler • Check the coupler for any pins that may be pulled out.
• Check the locking condition of the coupler.
• If there is a malfunction, connect the coupler securely
or replace the wire harness.
TIP
Turn the main switch to “OFF” before disconnecting or
connecting a coupler.
2 Wire harness continuity. • Check for continuity between the white terminal “1”
and the white terminal “3” and between the black ter-
minal “2” and the black terminal “4”.
• If there is no continuity, the wire harness is defective.
Replace the wire harness.
• Check that there is no continuity between the ground
and the white terminal “1” or white terminal “3” and be-
tween the ground and the black terminal “2” or black
terminal “4”.
• If there is continuity, the wire harness is defective. Re-
place the wire harness.
• Check that there is no continuity between the white
terminal “1” and the black terminal “2” and between
the white terminal “3” and the black terminal “4”.
• If there is continuity, the wire harness is defective. Re-
place the wire harness.
5. ABS ECU
6. Front wheel sensor
3 Defective wheel sensor. If the above items were performed and no malfunctions
were found, connect the ABS ECU coupler and front
wheel sensor coupler, and then delete the fault codes. If
fault code number “ABS_15” could not be deleted, the
front wheel sensor is defective. Replace the front wheel
sensor.
TIP
Before deleting the fault codes, record all of the fault
codes and perform the related checks and maintenance.
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
1
4 3
6 5