Yamaha YZF-R1 2007 Service Manual page 380

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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.
email: info@motomatrix.co.uk
Latch up detected.
Symptom
No normal signal is received from the lean angle sensor.
08 Lean angle sensor
Open circuit detected in the primary lead of the cylinder-
Symptom
#1 ignition coil.
30 Cylinder-#1 ignition coil
8-53
FUEL INJECTION SYSTEM
Check or maintenance job
Raise the vehicle upright.
Check the installed direction and
condition of the sensor.
• Execute the diagnostic mode.
(Code No.08)
• Replace if defective.
Refer to "CHECKING THE
LEAN ANGLE SENSOR" on
page 8-96.
Check or maintenance job
• Check the coupler for any pins
that may be pulled out.
• Check the locking condition of
the coupler.
• If there is a malfunction, repair it
and connect coupler securely.
• Repair or replace if there is an
open or short circuit.
• Between cylinder-#1 ignition
coil coupler and ECU coupler.
(Red/Black–Red/Black)
(Orange–Orange)
• Execute the diagnostic mode.
(Code No.30)
• Test the primary and secondary
coils for continuity.
• Replace if defective.
Refer to "CHECKING THE
IGNITION COILS" on page 8-
95.
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.)