Operation Manual

ABS (ANTI-LOCK BRAKE SYSTEM)
8-99
* A fault code is indicated if the rear wheel rotates for longer than about 20 seconds (fault code No.
ABS_11) or for longer than about 2 seconds (fault code No. ABS_25) with the front wheel stopped
(e.g., when the vehicle is on the suitable stand).
TIP
Fault codes Nos. ABS_15 (front wheel) and ABS_16 (rear wheel) are indicated if a defective con-
nection is detected in the front or rear wheel sensor when the vehicle is not being ridden.
ABS_53 Power voltage is too low.
• Battery voltage
• Connection of the ABS ECU coupler
• Wire harness
• Refer to “CHARGING SYSTEM” on page 8-
11.
ABS_54 Power voltage is too low.
• Battery voltage
• Connection of the ABS ECU coupler and
starter relay coupler
• Wire harness
• Refer to “CHARGING SYSTEM” on page 8-
11.
ABS_56
Hydraulic unit sensor power monitor cir-
cuit is abnormal.
• Hydraulic unit assembly
ABS_63 Front wheel sensor power is abnormal.
• Front wheel sensor lead
• Wire harness
• Hydraulic unit assembly
ABS_64 Rear wheel sensor power is abnormal.
• Rear wheel sensor lead
• Wire harness
• Hydraulic unit assembly
Fault code No.
ABS_11
ABS_25
Symptom
Front wheel sensor signal is not received prop-
erly.
Order
Item/components and probable
cause
Check or maintenance job
1 Installed condition of wheel sensor. Check for looseness. Repair or replace the wheel
sensor if necessary.
2 Installed condition of wheel bear-
ings, axle, sensor housing, and
sensor rotor.
Check the components for looseness, distortion, and
bends.
Refer to “CHECKING THE FRONT WHEEL” on page
4-20.
3 Foreign material inside sensor
housing.
Check the interior of the sensor housing and the sur-
face 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 4-21.
Fault
code No.
Symptom Check point