Yamaha XVS950CU 2014 Service Manual page 531

ABS (ANTI-LOCK BRAKE SYSTEM) (for ABS models)
Fault code No.
Item
Symptom
Item/components and probable
Order
cause
1 Foreign material adhered around the
rear wheel sensor
2 Incorrect installation of the rear wheel Check the components for looseness, distortion,
3 Defective sensor rotor or incorrect in-
stallation of the rotor
4 Defective rear wheel sensor or incor-
rect installation of the sensor
Fault code No.
Item
Symptom
Item/components and probable
Order
cause
1 Defective battery
2 Disconnected battery terminal
3 Defective charging system
44
Rear wheel sensor (missing pulses)
Rear wheel sensor signal is not received properly. (Missing
pulses are detected in the signal while the vehicle is traveling.)
Check or maintenance job
Check the surface of the sensor rotor and wheel
sensor for foreign material, such as metal particles.
Clean the sensor rotor and wheel sensor if neces-
sary.
and bends.
Refer to "CHECKING THE REAR WHEEL" on page
4-25.
Check the surface of the sensor rotor for damage.
Replace the sensor rotor if there is visible damage.
Refer to "MAINTENANCE OF THE REAR WHEEL
SENSOR AND SENSOR ROTOR (for ABS mod-
els)" on page 4-26.
Check the wheel sensor for damage and the in-
stalled condition of the sensor. Repair or replace
the wheel sensor if necessary.
Refer to "MAINTENANCE OF THE REAR WHEEL
SENSOR AND SENSOR ROTOR (for ABS mod-
els)" on page 4-26.
51
52
• Vehicle system power supply (voltage of ABS ECU power
supply is high) (for fault code No. 51)
• Vehicle system power supply (voltage of wheel sensor power
supply is high) (for fault code No. 52)
• Power voltage supplied to the ABS ECU in the hydraulic unit
assembly is too high. (For fault code No. 51)
• Power voltage supplied to the wheel sensor is too high. (For
fault code No. 52)
Check or maintenance job
Recharge or replace the battery.
Refer to "CHECKING AND CHARGING THE BAT-
TERY" on page 7-156.
Check the connection. Replace or reconnect the
terminal if necessary.
Check the charging system.
Refer to "CHARGING SYSTEM" on page 7-17.
7-140