Yamaha FJR1300A(D) - Page 602

ABS (ANTI-LOCK BRAKE SYSTEM)
8-153
• If the brake pipes (to the proportioning valve and the metering valve) are switched during assembly,
the brakes will continue to operate as normal. However, the reduction of the hydraulic pressure for the
rear brake and part of the right front brake will be reversed during the ABS operation when the final
check on page “[C-3] FINAL CHECK” on page 8-160 is performed.
Fault code No. ABS_43 Symptom Incorrect signal from the front wheel sensor is
detected.
Order Item/components and probable
cause
Check or maintenance job
1 Installed condition of wheel sensor. Check for looseness. Properly install or replace the
wheel sensor if necessary.
2 Installed condition of wheel bearings,
axle, sensor housing, and sensor ro-
tor.
Check the components for looseness, distortion,
and bends.
Refer to “CHECKING THE FRONT WHEEL” on
page 4-25.
3 Foreign material inside sensor hous-
ing.
Check the interior of the sensor housing and the
surface of the sensor rotor for foreign material,
such as metal particles. Clean the sensor housing
and sensor rotor if necessary.
Refer to “MAINTENANCE OF THE FRONT
WHEEL SENSOR AND SENSOR ROTOR” on
page 4-26.
4 Defective sensor rotor. • Check the surface of the sensor rotor for damage.
• If there is visible damage, replace the sensor ro-
tor.
Fault code No. ABS_44 Symptom Incorrect signal from the rear wheel sensor is
detected.
Order Item/components and probable
cause
Check or maintenance job
1 Installed condition of wheel sensor. Check for looseness. Properly install or replace the
wheel sensor if necessary.
2 Installed condition of wheel bearings,
axle, sensor housing, and sensor ro-
tor.
Check the components for looseness, distortion,
and bends.
Refer to “CHECKING THE REAR WHEEL” on page
4-34.
3 Foreign material inside sensor hous-
ing.
Check the interior of the sensor housing and the
surface of the sensor rotor for foreign material,
such as metal particles. Clean the sensor housing
and sensor rotor if necessary.
Refer to “MAINTENANCE OF THE REAR WHEEL
SENSOR AND SENSOR ROTOR” on page 4-34.
4 Defective sensor rotor. • Check the surface of the sensor rotor for damage.
• If there is visible damage, replace the sensor ro-
tor.