Yamaha 2012 TMAX XP500A, Service Manual, Page: 485 / 530

ABS (ANTI-LOCK BRAKE SYSTEM)
8-110
WARNING
EWA59C2806
The rear brake will not function properly if the connections are reversed.
• Rear brake hose (rear brake master cylinder to hydraulic unit) “1”: from the rear brake mas-
ter cylinder
• Rear brake pipe/joint assembly (hydraulic unit to rear brake hose) “2”: to the rear brake cal-
iper
TIP
• If the brake pipe inlet and outlet connections are reversed on the hydraulic unit, the rear brake
lever will be pulled to its full-stroke position without responding, and then it will be pushed back
slowly without pulsating when the final check on page “[C-3] FINAL CHECK” on page 8-117 is per-
formed.
• If the front and rear brake pipe connections are reversed on the hydraulic unit, the pulsating action
in the front brake lever and rear brake lever will be performed in the reverse order when the final
check on page “[C-3] FINAL CHECK” on page 8-117 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. 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.
4 Defective sensor rotor. • Check the surface of the sensor rotor for damage.
• If there is visible damage, replace the sensor rotor.
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. 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 REAR WHEEL” on page
4-32.
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 REAR WHEEL
SENSOR AND SENSOR ROTOR” on page 4-33.