Yamaha FZ09E 2014 Service Manual page 389

Fault code No.
Item
5 Defective intake air pressure
sensor 2.
6 Malfunction in ECU.
TIP
• If fault code numbers "25" and "26" are both indicated, take the actions specified for fault code number
"25" first.
• If fault code numbers "25" and "14" are both indicated, take the actions specified for fault code number
"25" first.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
25
Intake air pressure sensor 2: open or short circuit detected.
Execute the diagnostic
mode. (Code No. 04)
When engine is stopped:
Atmospheric pressure at the
current altitude and weather
conditions is indicated.
At sea level: Approx. 101 kPa
(757.6 mmHg, 29.8 inHg)
1000 m (3300 ft) above sea
level: Approx. 90 kPa (675.1
mmHg, 26.6 inHg)
2000 m (6700 ft) above sea
level: Approx. 80 kPa (600.0
mmHg, 23.6 inHg)
3000 m (9800 ft) above sea
level: Approx. 70 kPa (525.0
mmHg, 20.7 inHg)
When engine is cranking:
Make sure that the indication
value changes.
The value does not change
when engine is cranking. 
Check the intake air pressure
sensor 2.
Replace if defective.
Refer to "CHECKING THE
INTAKE AIR PRESSURE
SENSOR" on page 8-109.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-93.
26
Intake air pressure sensor 2: hose system malfunction
(clogged or detached hose).
Able to start engine
Able to drive vehicle
04
Displays the intake air pressure.
8-54
FUEL INJECTION SYSTEM
Turn the main switch to "ON".
Fault code number is not dis-
played  Service is finished.
Fault code number is dis-
played  Go to item 6.