Yamaha Vmax VMX17C 2009 Service Manual page 531

Fault code No. ABS-24
Order Item/components and probable
cause
1 Brake light operation.
• Defective tail/brake light
2 Connections
• ABS ECU coupler
• Front brake light switch connectors
• Rear brake light switch coupler
3 Open or short circuit in wire harness.
4 Water inside switch.
ABS (ANTI-LOCK BRAKE SYSTEM)
Symptom Brake light signal is not received properly while
vehicle is traveling (brake light circuit, or front
or rear brake light switch circuit).
Check or maintenance job
Check the tail/brake light. Re-
place the tail/brake light if neces-
sary.
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect the coupler se-
curely.
TIP
Turn the main switch to "OFF" be-
fore disconnecting or connecting
a coupler.
• Repair or replace if there is an
open or short circuit.
• Between rear brake light switch
coupler and ABS ECU coupler.
(yellow–yellow)
• Between front brake light switch
connectors and ABS ECU cou-
pler.
(yellow–yellow)
Use compressed air to blow out
the water.
8-98
Reinstatement
confirmation
method
• Check that
the brake light
comes on
when the front
or rear brake
is applied.
• Turn the main
switch to "ON"
and check
that the ABS
warning light
comes on for
2 seconds,
then goes off.
• Check that
the ABS
warning light
does not flash
when the
front, rear, or
both brakes
are applied for
2 seconds or
more.