Yamaha Tenere 700 2020, Service Manual

Page: 352 / 472

FUEL INJECTION SYSTEM
8-41
Procedure
Compare the actually measured air temperature with the tool display val-
ue.
Item
Probable cause of malfunc-
tion and check
Maintenance job
Confirmation of service com-
pletion
1 Connection of intake air tem-
perature 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.
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 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 3.
3 Wire harness continuity. Open or short circuit
→
Replace
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 4.
3-1
1. Intake air temperature sensor
2. ECU
3. Sensor output lead
4. Sensor ground lead
3-2 Disconnect the ECU coupler from the ECU.
Disconnect the intake air temperature sensor coupler from the intake air temperature sensor.
Br / W
B / L
Br / W
B / L
5V
1
2
3
4