Yamaha 2008 Fazer FZ1-N Service Manual page 413

Fault
code Symptom
No.
When the main switch is
turned to "ON", the atmo-
spheric pressure sensor
20
voltage and intake air pres-
sure sensor voltage differ
greatly.
Coolant temperature sen-
21 sor: open or short circuit
detected.
Intake air temperature sen-
22 sor: open or short circuit
detected.
Atmospheric pressure sen-
23 sor: open or short circuit
detected.
No normal signal is
received from the O
24
sor.
No normal signal is
30 received from the lean
angle sensor.
Open circuit detected in the
33 primary lead of the cylinder-
#1 ignition coil.
Open circuit detected in the
34 primary lead of the cylinder-
#2 ignition coil.
Open circuit detected in the
35 primary lead of the cylinder-
#3 ignition coil.
Probable cause of malfunction
• Atmospheric pressure sensor hose is
clogged.
• Intake air pressure sensor hose is clogged,
kinked, or pinched.
• Malfunction of the atmospheric pressure
sensor in the intermediate electrical poten-
tial.
• Malfunction of the intake air pressure sen-
sor in the intermediate electrical potential.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Defective coolant temperature sensor.
• Improperly installed coolant temperature
sensor.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Defective intake air temperature sensor.
• Improperly installed intake air temperature
sensor.
• Malfunction in ECU.
• Open or short circuit in sub wire harness.
• Defective atmospheric pressure sensor.
• Improperly installed atmospheric pressure
sensor.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Defective O
sen-
2
• Improperly installed O
• Malfunction in ECU.
• Vehicle has overturned.
• Defective lean angle sensor.
• Improperly installed lean angle sensor.
• Malfunction in ECU.
• Open circuit in wire harness.
• Malfunction in ignition coil.
• Malfunction in a component of ignition cut-
off circuit system.
• Malfunction in ECU.
• Open circuit in wire harness.
• Malfunction in ignition coil.
• Malfunction in a component of ignition cut-
off circuit system.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in ignition coil.
• Malfunction in a component of ignition cut-
off circuit system.
• Malfunction in ECU.
8-44
FUEL INJECTION SYSTEM
sensor.
2
sensor.
2
Diagnostic
code No.
02
03
06
05
02
—
08
30
31
32