Yamaha Tenere 700 2020 Service Manual page 354

4 Installed condition of intake air
temperature sensor.
5 Defective intake air tempera-
ture sensor.
6 Malfunction in ECU.
7 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0117, P0118
TIP
Perform this procedure when the engine is cold.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of coolant tempera-
ture sensor 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).
Check for looseness or pinch-
ing.
Improperly installed sensor →
Reinstall or replace the sensor.
Execute the diagnostic mode.
(Code No. 05)
When engine is cold:
Displayed temperature is close
to the ambient temperature.
The displayed temperature is
not close to the ambient tem-
perature. → Check the intake air
temperature sensor.
Replace if defective.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-130.
Confirm that the fault code has
a condition of "Recover" using
the Yamaha diagnostic tool, and
then delete the fault code.
P0117, P0118
[P0117] Coolant temperature sensor: ground short circuit detected.
[P0118] Coolant temperature sensor: open or power short circuit
detected.
Able to start engine
Able to drive vehicle
06
When engine is cold: Displays temperature closer to air temperature.
When engine is hot: Displays current coolant temperature.
Compare the actually measured coolant temperature with the tool display
value.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-43
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 5.
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 7 and finish the service.
Condition is "Malfunction" → Go
to item 6.
Service is finished.
Confirmation of service com-
Turn the main switch to "ON",
and then check the condition of
the fault code using the mal-
function mode of the Yamaha di-
agnostic tool.
Condition is "Recover" → Go to
item 8 and finish the service.
Condition is "Malfunction" → Go
to item 2.
pletion