Yamaha YZF-R1B 2012 Service Manual page 497

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Checking method
Item/components and
probable cause
1 Connection of front speed
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
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69
Normal signals are not received from the front speed sensor.
Engine startup: Possible
Riding: Possible
D:16
Vehicle speed pulses: 0–999
Make sure that the indication value increases when the rotation
speed of the front wheel increases. This value is cumulative and is
not reset each time the wheel is prevented from rotating.
Check or maintenance job
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Poor connection → Connect
it securely, or repair/replace
the wire harness.
Open or short circuit →
Replace the wire harness.
Gray–Gray
White–White
8-100
FUEL INJECTION SYSTEM
Sensor inspection proce-
Start the engine, and check
the connection of the coupler
is secure.
Ride on the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start the engine, and check
the connection of the coupler
is secure.
Ride on the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
Start the engine, and check
the connection of the coupler
is secure.
Ride on the vehicle at a low
speed (approx. 20–30 km/h).
Then, check the fault code
indication.
No fault code indicated. →
Recovered.
Fault code indicated. →
Check the next step.
dure