Yamaha FZ 25 2021 Supplementary Service Manual page 177

Fault code No.
Symptoms
Diagnostic code No.
Item and components and
Item
probable cause
1 Installed condition of O
2 Connection of O
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).
3 Connection of main 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).
4 Harness continuity
SELF-DIAGNOSTIC FUNCTION AND
DIAGNOSTIC CODE TABLE
P2195
O sensor (open circuit)
2
sensor. Check the installation part for
2
looseness and stuck places.
Defective connections  Re-
sensor cou-
2
connect or replace the harness.
Defective connections  Re-
connect or replace the harness.
Open or short circuit  Recon-
nect or replace the harness.
O sensor - ECU (sensor out-
2
put)
Actions
6-47
ELEC
Confirmation procedure after
actions
Start the engine, warm up, and
then race.
After the above work is finished,
check the condition of the fault
code in diagnostic mode of the
Yamaha diagnostic tool.
Condition is Recovered  Go to
item 8 and finish the service.
Condition is Detected  Go to
item 2.
Alternatively delete the fault
code with the status "Detected".
Start the engine, warm up, and
then race.
After the above work is finished,
check the condition of the fault
code in diagnostic mode of the
Yamaha diagnostic tool.
Condition is Recovered  Go to
item 8 and finish the service.
Condition is Detected  Go to
item 3.
Alternatively delete the fault
code with the status "Detected".
Start the engine, warm up, and
then race.
After the above work is finished,
check the condition of the fault
code in diagnostic mode of the
Yamaha diagnostic tool.
Condition is Recovered  Go to
item 8 and finish the service.
Condition is Detected  Go to
item 4.
Alternatively delete the fault
code with the status "Detected".
Start the engine, warm up, and
then race.
After the above work is finished,
check the condition of the fault
code in diagnostic mode of the
Yamaha diagnostic tool.
Condition is Recovered  Go to
item 8 and finish the service.
Condition is Detected  Go to
item 5.
Alternatively delete the fault
code with the status "Detected".
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