Yamaha Vmax VMX17C 2009 - Basic Process for Troubleshooting

ABS (ANTI-LOCK BRAKE SYSTEM)
8-81
EAS27810
BASIC PROCESS FOR TROUBLESHOOTING
[A] Turn the main switch to
ON, and check the
ABS warning light.
[B-1] Does the ABS warning
light fail to come on?
[B-2] Does the ABS warning
light flash?
[B-3] Does the ABS warning
light remain on?
[B-4] Does the ABS warning
light come on for 2
seconds, then go off?
No malfunctions are
currently detected.
Connect the test coupler adapter
to the ABS test coupler, and then
check for past fault codes in the
multi-function display.
Record any fault codes that are
displayed.
TIP
Are fault codes displayed in the
multi-function display?
(ABS warning light is on for
0.5 second and off for 0.5 second.)
Finished.
[C-1] Does only the ABS warning
light fail to come on?
[C-2] Do all indicator lights fail to
come on?
The ABS warning light (LED) is defective.
The wire harness is grounded between the
ABS ECU and the meter assembly 1.
The meter assembly 1 circuit is defective.
The ABS ECU is defective.
The main switch is defective.
The battery voltage is low.
The main fuse is blown.
The meter assembly 1 circuit is open.
[C-5] Diagnose by the fault
code.
[D-1] Delete the fault codes.
[D-2] Delete function test.
Finished.
[B-5] Malfunctions are
currently detected.
[C-3] Does the ABS warning
light remain on?
Connect the test coupler
adapter to the ABS test coupler,
and then check for fault codes
in the multi-function display.
Are fault codes displayed in the
multi-function display?
TIP
The ABS ECU fuse is blown.
The ABS ECU coupler is
disconnected or a coupler pin
is pulled out.
There is a break in the wire
harness between the main
switch and the ABS ECU.
The battery voltage is low.
There is a break in the wire
harness between the ABS
ECU and the meter assembly 1.
The meter assembly 1 circuit is
defective.
The hydraulic unit assembly is
defective.
[C-4] The ABS warning
light flashes.
The T/C terminal
(green/yellow) of the
ABS test coupler is
grounded.
The meter assembly 1
circuit is defective.
Is the test coupler
adapter connected
to the ABS test
coupler?
Disconnect the test
coupler adapter.
Return to [A].Return to [A]. Return to [A].
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Cannot delete
Yes
Yes
Yes
No
No
No
No
No
No
OK
No
No
Return to [A].
Return to [A].
Record any fault codes
that are displayed.
If there are any fault
codes for the fuel injection
system, those fault codes will
be displayed first.
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