Yamaha Tenere 700 2020, Service Manual

Page: 348 / 472

FUEL INJECTION SYSTEM
8-37
Fault code No. P0107, P0108
4 Defective O
2
sensor heater. Replace the O
2
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 6 and finish the service.
Condition is “Malfunction”
→
Start the engine, and then
check the condition of the fault
code.
Condition is “Recover”
→
Go to
item 6 and finish the service.
Condition is “Malfunction”
→
Go
to item 5.
TIP
For this check, also set the en-
gine stop switch to “ON”.
5 Malfunction in ECU. Replace the ECU.
Refer to “REPLACING THE
ECU (engine control unit)” on
page 8-130. Service is finished.
6 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. P0107, P0108
Item
[P0107] Intake air pressure sensor: ground short circuit detected.
[P0108] Intake air pressure sensor: open or power short circuit de-
tected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 03
Tool display Displays the intake air pressure.
Procedure
Operate the throttle while pushing the start switch. (If the display value
changes, the performance is OK.)
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Connection of intake air pres-
sure 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 7 and finish the service.
Condition is “Malfunction”
→
Go
to item 2.