Basic Process For Troubleshooting - Yamaha MT-09 2021 Service Manual

EAS32878

BASIC PROCESS FOR TROUBLESHOOTING

When turning the main switch to
"ON", does the MIL come on?
Yes
The MIL goes off after 2
seconds?
No
[A] Push the cruise control
power switch, and check
the cruise control system
indicator light.
Comes on
[B-2] Check the malfunction
history using the malfunction
mode of the YDT.
Is there any malfunction
history?
No
[B-3] Is there automatic
deactivation history for the
cruise control system?
No
[C-2] Final check.
DTC No. is not displayed.
Finished.
CRUISE CONTROL SYSTEM (for MTN890D)
No
Yes
Fails to come on
Flashes
[B-1] Diagnosis using the DTC.
Yes
Yes
Explain the conditions for
automatically deactivating the
cruise control system to the
customer.
OK
The cruise control power switch is
•
defective.
The cruise control system fuse is
•
blown.
The ECU is defective.
•
[C-1] Delete the DTC.
9-32
Check the MIL (LED).
Return to [A].
Return to [A].