Yamaha VMAX 2009 Service Manual page 530

Fault code No. ABS-12
Order Item/components and probable
cause
1 Installed condition of wheel sensor.
2 Installed condition of wheel bearings,
axle, sensor housing, and sensor ro-
tor.
3 Foreign material inside sensor hous-
ing.
4 Defective sensor rotor.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom Rear wheel sensor signal is not received proper-
Check or maintenance job
Check for looseness. Repair or
replace the wheel sensor if nec-
essary.
Check the components for loose-
ness, distortion, and bends.
Refer to "CHECKING THE REAR
WHEEL" on page 4-24.
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
4-24.
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" on page
4-24.
8-97
ly.
Reinstatement
confirmation
method
• Turn the main
switch to "ON"
and check
that the ABS
warning light
comes on for
2 seconds,
then goes off.
• Perform a tri-
al run at a
constant
speed of 30
km/h and
check that the
ABS warning
light does not
come on.