Yamaha Tenere 700 2020, Service Manual

Page: 384 / 472

FUEL INJECTION SYSTEM
8-73
2 Connection of ECU coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Turn the main switch to “ON”,
and then extend and retract the
sidestand.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 3.
3 Connection of relay unit coupler.
Check the locking condition of
the coupler.
Disconnect the coupler and
check the pins (bent or broken
terminals and locking condition
of the pins). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
Turn the main switch to “ON”,
and then extend and retract the
sidestand.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 4.
4 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Between sidestand switch cou-
pler and relay unit coupler.
blue/green–blue/green
Between relay unit coupler and
joint coupler.
black/red–black/red
Between joint coupler and ECU
coupler.
black/red–black/red
Turn the main switch to “ON”,
and then extend and retract the
sidestand.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 5.
5 Defective sidestand switch. Execute the diagnostic mode.
(Code No. 20)
Shift the transmission into gear.
Sidestand retracted: “ON”
Sidestand extended: “OFF”
Replace if defective. Turn the main switch to “ON”,
and then extend and retract the
sidestand.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 6.
6 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-130. Service is finished.
7 Delete the fault code and check
that the engine trouble warning
light goes off. Confirm that the fault code has
a condition of “Recover” using
the Yamaha diagnostic tool, and
then delete the fault code.