Yamaha Tenere 700 2020, Service Manual

Page: 355 / 472

FUEL INJECTION SYSTEM
8-44
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 8 and finish the service.
Condition is “Malfunction”
→
Go
to item 3.
3 Connection of sub-wire har-
ness 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 sub-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 4.
4 Wire harness and/or sub-wire
harness continuity. Open or short circuit
→
Replace
the wire harness and/or sub-
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 5.
4-1
1. Coolant temperature sensor
2. ECU
3. Sensor output lead
4. Sensor ground lead
4-2 Disconnect the ECU coupler from the ECU.
Disconnect the coolant temperature sensor coupler from the coolant temperature sensor.
4-3 [For P0117] Ground short circuit
Between coolant temperature sensor coupler and ground: green/white–ground
If there is continuity, replace the wire harness and/or sub-wire harness.
G / W
B / L
G / W
B / L
5V
1
2
3
4
B / L G / W