Yamaha YZFR1W 2007 Service Manual page 371

Fault code No. 30
Diagnostic code No.
Orde Item/components and probable
r cause
1 The vehicle has overturned.
2 Installed state of the lean angle sen-
sor.
3 Defective lean angle sensor.
Fault code No. 33
Diagnostic code No.
Orde Item/components and probable
r cause
1 Connections
• Cylinder-#1 ignition coil coupler
• Main wire harness ECU coupler
• Sub-wire harness 1 coupler
2 Open or short circuit in wire harness
and/or sub-wire harness 1.
3 Defective cylinder-#1 ignition coil.
Latch up detected.
Symptom
No normal signal is received from the lean angle sensor.
08 Lean angle sensor
Check or maintenance job
Raise the vehicle upright.
Check the installed direction and
condition of the sensor.
• Execute the diagnostic mode.
• Replace if defective.
Open circuit detected in the primary lead of the cylinder-
Symptom
#1 ignition coil.
30 Cylinder-#1 ignition coil
Check or maintenance job
• Check the coupler for any pins
• Check the locking condition of
• If there is a malfunction, repair it
• Repair or replace if there is an
• Between cylinder-#1 ignition
• Execute the diagnostic mode.
• Test the primary and secondary
• Replace if defective.
8-52
FUEL INJECTION SYSTEM
(Code No.08)
Refer to "CHECKING THE
LEAN ANGLE SENSOR" on
page 8-92.
that may be pulled out.
the coupler.
and connect coupler securely.
open or short circuit.
coil coupler and ECU coupler.
(Red/Black–Red/Black)
(Orange–Orange)
(Code No.30)
coils for continuity.
Refer to "CHECKING THE
IGNITION COILS" on page 8-
91.
Reinstatement
method
Turning the
main switch to
"ON" (however,
the engine can-
not be restarted
unless the main
switch is first
turned to
"OFF").
Reinstatement
method
Cranking the
engine.
(Connect the
cylinder-#1 igni-
tion coil cou-
pler.)