Open Or Short Circuit Of Lean Angle Sensor Lead - Yamaha 2009 YZF-R1 (Y) Service Manual

Fault code No.
Symptom
Fail-safe action
Diagnostic monitor-
ing code No.
Meter display
Checking method
Item/components and
probable cause
1 Connection of lean angle
sensor coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
2 Connection of main harness
ECU coupler
Check the connection of the
coupler is secure.
Remove the coupler, and
check each pin (for bending,
wear, or locking).
3 Continuity of wire harness
41

Open or short circuit of lean angle sensor lead

Engine startup: Impossible
Riding: Impossible
D:08
Lean angle sensor
• 0.4–1.4 (upright)
• 3.7–4.4 (overturned)
Remove the lean angle sensor and incline more than 45 degrees.
Check or maintenance job
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Poor connection → Connect
it securely, or repair/replace
the harness.
Open or short circuit →
Replace the wire harness.
Black/Blue–Black/Blue
Yellow/Green–Yellow/Green
Blue–Blue
FUEL INJECTION SYSTEM
8-81
Sensor inspection proce-
dure
Rotate the main switch to the
OFF position first, and then
rotate it to the ON position
again.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Rotate the main switch to the
OFF position first, and then
rotate it to the ON position
again.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Rotate the main switch to the
OFF position first, and then
rotate it to the ON position
again.
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.