Yamaha R15 2022, Руководство по обслуживанию

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8-58
FUEL INJECTION SYSTEM TROUBLESHOOTING
– + ELEC
Fault code No. P0117, P0118
TIP
Perform this procedure when the engine is cold.
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 YDT, and then delete the
fault code.
Fault code No. P0117, P0118
Item
[P0117] Coolant temperature sensor: short to ground circuit is de-
tected.
[P0118] Coolant temperature sensor: open or short to power circuit
is 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 fault code
using the malfunction mode of
the YDT.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 2.
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 check the fault code
using the malfunction mode of
the YDT.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 3.
3 Wire harness continuity. Open or short circuit
→
Replace
the wire harness.
Turn the main switch to “ON”,
and then check the fault code
using the malfunction mode of
the YDT.
Condition is “Recover”
→
Go to
item 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 4.
Fault code No. P0112, P0113
Item
[P0112] Intake air temperature sensor: short to ground circuit is de-
tected.
[P0113] Intake air temperature sensor: open or short to power circuit
is detected.
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