[A]
[A-3]
Comes on
Can communicate
Cannot
communicate
Push the ON/start switch,
and check the ABS warning
light.
[A-1] Does only the ABS
warning light fail to
come on?
[A-2] Do all indicator lights
fail to come on?
[A-5] ABS ECU and FI ECU
fail to communicate.
[B-2] Diagnose by the DTC. [B-3] Delete the DTC.
[A-4] Only the ABS ECU
fails to communicate.
[B-1]
Yes
Yes
Yes
Return to [A].
Return to [A].
Return to [A].
Return to [A].
Return to [A].
Return to [A].
Yes
Yes
Yes
(The ABS warning light
goes off when the light is
checked.)
No
No
No
No
Finished.
[C-1]
Fails to
come on
The ABS warning light comes
on.
Connect the YDT, and then
execute functional diagnosis.
Can the YDT communicate
with the ABS ECU?
Check for ABS DTC in the
screen for the YDT.
Execu
te diagnosis of
malfunction.
Are DTC displayed on
the screen?
Perform the final checks.
Were all of the final checks
completed normally?
The reaction force generated
during brake line routing
confirmation is incorrect. Refer to
“[C-1] FINAL CHECK”.
• The brake hoses and brake
pipes are not connected
correctly.
The ABS warning light does
not go off when the light is
checked. Refer to “[C-1]
FINAL CHECK”.
• The malfunction is not
corrected.
• There is a break in the wire
harness between the ABS ECU
and the meter assembly.
• The meter assembly is defective.
• The ABS warning light circuit in
thehydraulic unit assembly is
defective.
• The ABS warning light (LED) is
defective.
• The wire harness is grounded
between the ABS ECU and the
meter assembly.
• The meter assembly is defective.
• The hydrau
lic unit assembly is
defective.
• The ON/start switch is defective.
• The battery voltage is low.
• The main fuse is blown.
• The meter assembly is defective.
• The ABS ECU fuse is blown.
• The ABS ECU coupler is
disconnected.
• The wire harness is defective.
• The hydraulic unit assembly
is defective.
• The connection with the YDT is
defective.
• The wire harness is defective.
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