Yamaha VMAX 2009 Service Manual page 552

Fault code No. ABS-56
Order Item/components and probable
cause
1 Defective internal monitor circuit (sen-
sor power).
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom Hydraulic unit sensor power monitor circuit is
Check or maintenance job
Replace the hydraulic unit as-
sembly.
8-119
abnormal.
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 hy-
draulic unit
operation test
1 and check
that the oper-
ation of the
hydraulic unit
is normal.