Yamaha MTN1000 2016, Service Manual

Page: 532 / 658

FUEL INJECTION SYSTEM
8-115
2 Connection of O
2
sensor 1 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
replace the wire harness.
Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 8 and finish the service.
Condition is “Detected”

Go to
item 3.
Also, delete this fault code,
which has a condition of
“Detected”.
3 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
replace the wire harness.
Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 8 and finish the service.
Condition is “Detected”

Go to
item 4.
Also, delete this fault code,
which has a condition of
“Detected”.
4 Wire harness continuity. Open or short circuit

Replace
the wire harness.
Between O
2
sensor 1 coupler
and ECU coupler.
gray/green–gray/green
pink/black–pink/black
Between O
2
sensor 1 coupler
and joint connector.
black/blue–black/blue
Between O
2
sensor 1 coupler
and joint coupler.
red/white–red/white
Between joint connector and
ECU coupler.
black/blue–black/blue
Between joint coupler and igni-
tion fuse.
red/white–red/white
Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 8 and finish the service.
Condition is “Detected”

Go to
item 5.
Also, delete this fault code,
which has a condition of
“Detected”.
5 Check fuel pressure. Refer to “CHECKING THE
FUEL PRESSURE” on page
7-11.
Start the engine and let it idle for
approximately 10 seconds.
Check the condition of the fault
code using the malfunction
mode of the Yamaha diagnostic
tool.
Condition is “Recovered”

Go
to item 8 and finish the service.
Condition is “Detected”

Go to
item 6.
Also, delete this fault code,
which has a condition of
“Detected”.
Fault code No. P2195
Item O
2
sensor 1: open circuit detected.