Yamaha Tenere 700 2020, Service Manual

Page: 354 / 472

FUEL INJECTION SYSTEM
8-43
Fault code No. P0117, P0118
TIP
Perform this procedure when the engine is cold.
4 Installed condition of intake air
temperature sensor. Check for looseness or pinch-
ing.
Improperly installed sensor
→
Reinstall or replace the sensor.
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.
5 Defective intake air tempera-
ture 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.
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.
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.
Fault code No. P0117, P0118
Item
[P0117] Coolant temperature sensor: ground short circuit detected.
[P0118] Coolant temperature sensor: open or power short circuit
detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 06
Tool display
When engine is cold: Displays temperature closer to air temperature.
When engine is hot: Displays current coolant temperature.
Procedure
Compare the actually measured coolant temperature with the tool display
value.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
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). Improperly connected
→
Con-
nect the coupler securely or re-
place the wire harness.
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.