Yamaha FZ 25 2021 Supplementary Service Manual page 190

Fault code No.
Symptoms
Diagnostic code No.
Item and components and
Item
probable cause
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
5 Faulty O sensor
2
6 ECU malfunction
7 EG warning light, delete the
fault code.
Fault code No.
Symptoms
Diagnostic code No.
NOTICE
Work when the machine to be repaired is completely cold
Item and components and
Item
probable cause
1 Connection of the sensor mod-
ule 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).
SELF-DIAGNOSTIC FUNCTION AND
DIAGNOSTIC CODE TABLE
P0132
Short circuit in the O
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)
Check the O
sensor  Replace the
Faulty O
2
O sensor.
2
Replace the ECU.
Delete this fault code with the
status "Recovered" in the
Yamaha diagnostic tool.
P0197/P0198
Open or short circuit in the engine temperature sensor
P0197 (ground fault) P0198 (open circuit/sky fault)
D11 (Engine temperature sensor)
Defective connections  Re-
connect or replace the harness.
6-60
sensor detected (sky fault).
2
Actions
Turn the main switch to "ON",
and then check the condition of
the fault code in diagnostic
mode of the Yamaha diagnostic
tool.
Condition is Recovered  Go to
item 7 and finish the service.
Condition is Detected  Go to
item 4.
Turn the main switch to "ON",
and then check the condition of
the fault code in diagnostic
mode of the Yamaha diagnostic
tool.
Condition is Recovered  Go to
item 7 and finish the service.
Condition is Detected  Go to
item 5.
sensor. Turn the main switch to "ON",
2
and then check the condition of
the fault code in diagnostic
mode of the Yamaha diagnostic
tool.
Condition is Recovered  Go to
item 7 and finish the service.
Condition is Detected  Go to
item 6.
Finish the service.
Actions
Turn the main switch to "ON",
and then check the condition of
the fault code in diagnostic mode
of the Yamaha diagnostic tool.
Condition is Recovered  Go to
item 7 and finish the service.
Condition is Detected  Go to
item 2.
ELEC
Confirmation procedure after
actions
Confirmation procedure after
actions
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