Yamaha Tenere 700 2020, Service Manual

Page: 347 / 472

FUEL INJECTION SYSTEM
8-36
1 Connection of O
2
sensor cou-
pler.
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 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 2.
TIP
For this check, also set the en-
gine stop switch to “ON”.
2 Connection of wire harness
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 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 3.
TIP
For this check, also set the en-
gine stop switch to “ON”.
3 Wire harness continuity. Open or short circuit
→
Properly
connect or replace the wire har-
ness.
Between O
2
sensor coupler and
ECU coupler.
pink/black–pink/black
Between O
2
sensor coupler and
joint coupler.
red/white–red/white
Between joint coupler and igni-
tion fuse.
red/white–red/white
Between ignition fuse and main
switch.
brown/blue–brown/blue
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 4.
TIP
For this check, also set the en-
gine stop switch to “ON”.