Fault Code 24 - Yamaha FZ8NA Service Manual

Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item/components and
probable cause
1 O sensor installation status
2
2 Connection of O
coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
3 Connection of wire harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
4 Continuity of wire harness
5 Check the fuel pressure.
24
O sensor: no normal signals are received from the O
2
Able to start engine
Able to drive vehicle
—
—
—
Check or maintenance job
Check the sensor for a loose
mounting or a pinch
Poor connection → Connect it
sensor
2
securely, or repair/replace the
wire harness.
Poor connection → Connect it
securely, or repair/replace the
wire harness.
Open or short circuit → Con-
nect it securely, or repair/
replace the wire harness.
Black/blue–Black/blue
Pink/black–Pink/black
Red/white–Red/white
Gray/green–Gray/green
Refer to "CHECKING THE
FUEL PRESSURE" on page
7-4.
FUEL INJECTION SYSTEM
8-73
sensor.
2
Sensor inspection proce-
dure
Either start and warm up the
engine, and then racing it, or
reset it with diagnostic code
d63.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Either start and warm up the
engine, and then racing it, or
reset it with diagnostic code
d63.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Either start and warm up the
engine, and then racing it, or
reset it with diagnostic code
d63.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Either start and warm up the
engine, and then racing it, or
reset it with diagnostic code
d63.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Either start and warm up the
engine, and then racing it, or
reset it with diagnostic code
d63.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.