Yamaha YZF-R1 2012, Service Manual

Page: 437 / 556

FUEL INJECTION SYSTEM
8-40
Sensor operation table
Diag-
nostic
code
No.
Item Meter display Checking method
D:01 Throttle position sensor sig-
nal 1
• Fully closed position
12–21 Check with throttle valves
fully closed.
• Fully opened position 97–106
85–94 for FRA/BEL (1KB9/
1KBK) Check with throttle valves
fully open.
D:02 Atmospheric pressure Displays the atmospheric
pressure. Compare the actually mea-
sured atmospheric pressure
with the meter display
value.
D:03 Pressure difference
(atmospheric pressure and
intake air pressure) Displays the intake air pres-
sure. Set the engine stop switch
to “
”, and then push the
start switch “ ”. (If the dis-
play value changes, the per-
formance is OK.)
D:05 Intake air temperature When engine is cold: Dis-
plays temperature closer to
air temperature
When engine is hot: Air tem-
pe approx. 20
°
C (68
°
F)
Compare the actually mea-
sured intake air temperature
with the meter display
value.
D:06 Coolant temperature When engine is cold: Dis-
plays temperature closer to
air temperature
When engine is hot: Displays
current coolant temperature Compare the actually mea-
sured coolant temperature
with the meter display
value.
D:07 Rear wheel vehicle speed
pulses 0–999
Displays the cumulative value
of the rear wheel vehicle
speed pulses. Rear wheel stops: make
sure that the indication
value is constant.
Rotate the rear wheel by
hand several times to enter
the rear wheel vehicle
speed pulses: the indication
value is added.
D:08 Lean angle sensor Remove the lean angle sen-
sor and incline it more than
45 degrees.
• Upright 0.4–1.4
• Overturned 3.7–4.4
D:09 Fuel system voltage
(battery voltage) Approximately 12.0 Set the engine stop switch
to “
”, and then compare
with the actually measured
battery voltage. (If the bat-
tery voltage is lower, per-
form recharging.)