Yamaha R15 2022 Service Manual page 384

FUEL INJECTION SYSTEM TROUBLESHOOTING
Fault code No.
Item
3 Delete the fault code and check
that the engine trouble warning
light goes off.
Fault code No. P0107, P0108
Do not remove the throttle body sensor assembly from the throttle body.
TIP
If fault code numbers "P0107/P0108" and "P0106" are indicated at the same time, perform the check/
service for fault code number "P0107/P0108" first.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of throttle body sen-
sor assembly 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).
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).
3 Wire harness continuity.
P0106
Intake air pressure sensor: clogged hole or sensor installation im-
properly.
Confirm that the fault code has
a condition of "Recovered" us-
ing the Yamaha diagnostic tool,
and then delete the fault code.
P0107, P0108
[P0107] Intake air pressure sensor: open or short to ground circuit is
detected.
[P0108] Intake air pressure sensor: short to power circuit is detected.
Able to start engine
Able to drive vehicle
03
Displays the intake air pressure.
Check the intake air pressure when cranking engine. (If the displaying
value changes, the performance is OK.)
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
8-51
ELEC
Confirmation of service com-
pletion
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.
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.
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.
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