Basic Process For Troubleshooting - Yamaha 2009 Diversion XJ6S Service Manual

EAS27810

BASIC PROCESS FOR TROUBLESHOOTING

[A] Turn the main switch to
"on" , and the Check the
ABS warning light.
[B-1] Does the ABS warning
light fail to come on?
No
[B-2] Does the ABS warning
light flash?
No
[B-3] Does the ABS warning
light remain on?
No
[B-4] Does the ABS warning
light come on for 2
seconds, then go off?
Yes
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.
Are fault codes displayed in the
multi-function display?
NOTE:
Record any fault codes
that are displayed.
No
(ABS warning light is on for 0.5
second and off for 0.5 second.)
Cannot delete
Finished.
Yes
[C-1] Does only the ABS warning
light fail to come on?
No
[C-2] Do all indicator lights fail
to come on?
Yes
Yes
[B-5] Malfunctions are
currently detected.
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?
NOTE:
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.
Yes
Yes
[C-5] Diagnose by the fault
code.
[D-1] Delete the fault codes.
OK
[D-2] Delete function test.
ABS (ANTI-LOCK BRAKE SYSTEM)
The ABS warning light (LED) is defective.
The wire harness is grounded between the
Yes
ABS ECU and the meter assembly.
The meter assembly circuit is defective.
The ABS ECU is defective.
The main switch is defective.
Yes
The battery voltage is low.
The main fuse is blown.
The meter assembly circuit is open.
No
[C-3] Does the ABS warning
light remain on?
Yes
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.
The meter assembly circuit is
defective.
The hydraulic unit assembly is
defective.
Finished. Return to [A].
8-107
Return to [A].
Return to [A].
Is the test coupler
adapter connected
to the ABS test
No
coupler?
Disconnect the test
coupler adapter.
No
[C-4] The ABS warning
light flashes.
The T/C terminal
(sky blue) of the ABS
test coupler is
grounded.
The meter assembly
circuit is defective.
Return to [A]. Return to [A].
Yes