Yamaha XP560D, Service Manual

Page: 508 / 688

9-34
ABS (Anti-lock Brake System)
[A]
[A-3]
Comes on
Can comm u nicate
Cannot
comm
u nicate
P u sh the O N /start s witch ,
and check the ABS w arning
light.
[A-1] Does only the ABS
w arning light fail to
come on?
[A-2] Do all indicator lights
fail to come on?
[A-5] ABS ECU and FI ECU
fail to comm u nicate.
[B-2] Diagnose b y the DTC. [B-3] Delete the DTC.
[A-4] Only the ABS ECU
fails to comm u nicate.
[B-1]
Yes
Yes
Yes
Ret u rn to [A].
Ret u rn to [A].
Ret u rn to [A].
Ret u rn to [A].
Ret u rn to [A].
Ret u rn to [A].
Yes
Yes
Yes
(The ABS
w arning light
goes off w hen the light is
checked.)
N o
N o
N o
N o
Finished.
[C-1]
Fails to
come on
The ABS w arning light comes
on.
Connect the YDT, and then
exec
u te f u nctional diagnosis.
Can the YDT comm u nicate
w ith the ABS ECU?
Check for ABS DTC in the
screen for the YDT.
Exec
u te diagnosis of
malf u nction.
Are DTC displayed on
the screen?
Perform the final checks.
W ere all of the final checks
completed normally?
The reaction force generated
d
u ring b rake line ro u ting
confirmation is incorrect. Refer to
“[C-1] FI
N AL CHECK”.
• The b rake hoses and b rake
pipes are not connected
correctly.
The ABS
w arning light does
not go off w hen the light is
checked. Refer to “[C-1]
FI
N AL CHECK”.
• The malf u nction is not
corrected.
• There is a
b reak in the w ire
harness b et w een the ABS ECU
and the meter assem b ly.
• The meter assem b ly is defecti v e.
• The ABS w arning light circ u it in
the hydra u lic u nit assem b ly is
defecti v e.
• The ABS w arning light (LED) is
defecti v e.
• The w ire harness is gro u nded
b et w een the ABS ECU and the
meter assem b ly.
• The meter assem b ly is defecti v e.
• The hydra u lic u nit assem b ly is
defecti v e.
• The O N /start s witch is defecti v e.
• The b attery v oltage is lo w .
• The main f u se is b lo w n.
• The meter assem b ly is defecti v e.
• The ABS ECU f u se is b lo w n.
• The ABS ECU co u pler is
disconnected.
• The
w ire harness is defecti v e.
• The hydra u lic u nit assem b ly
is defecti v e.
• The connection w ith the YDT is
defecti v e.
• The w ire harness is defecti v e.