Yamaha XT1200Z(Z) 2010, Service Manual, Page: 34 / 616

FEATURES
1-25
3. The ABS warning light comes on while riding.
If the ABS warning light comes on while riding, a malfunction has been detected in the ABS or UBS.
The ABS hydraulic control will not be performed. The ABS will have recourse to manual braking if
this occurs.
NOTICE
ECA23P1057
There may be little or no additional rear brake force provided by the UBS if the ABS warning
light comes on while riding. If the UBS does not operate, the front and rear brakes will operate
independently according to the rider input. When the brake lever is squeezed, only the front
brakes will operate and when the brake pedal is depressed, only the rear brake will operate.
4. The ABS warning light flashes while riding.
If the ABS warning light flashes while riding, there is no problem with the function of the ABS and
UBS. However, the ABS ECU input has unstable factors. (For details, refer to “ABS TROUBLE-
SHOOTING OUTLINE” on page 8-95.)
TIP
The ABS warning light comes on or flashes if the vehicle is ridden with the test coupler adapter con-
nected to the ABS test coupler.
5. The ABS warning light “1” flashes when the test coupler adapter “2” is connected to the ABS test
coupler “3” for troubleshooting the ABS. The ABS test coupler can be accessed by removing the rid-
er seat.
When the test coupler adapter is connected to the ABS test coupler, the ABS warning light starts
flashing and the ABS warning light flash pattern indicates all the fault codes recorded in the ABS
ECU.
a b
a. ABS warning light
b. Comes on
a
d
b
c
a. ABS warning light
b. Comes on
c. Goes off d. Unstable ABS ECU input
Test coupler adapter
90890-03149