Yamaha 2005 MT-01, Service Manual, Page: 351 / 435

FUEL INJECTION SYSTEM
7-36
Sensor operation table
Er-4
Non-registered data has
been received from the
meter. • Improper connection in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
—
Diag-
nostic
code
No.
Item Meter display Checking method
01 Throttle angle
• Fully closed position 15–20 Check with throttle fully
closed.
• Fully opened position 95–100 Check with throttle fully
open.
03 Pressure difference
(atmospheric pressure and
cylinder-#1 intake air
pressure) Displays the cylinder-#1
intake air pressure. Set the engine stop switch
to “
”, then operate the
throttle while pushing the
start switch “
”. (If the
display value changes, the
performance is OK.)
04 Pressure difference
(atmospheric pressure and
cylinder-#2 intake air
pressure) Displays the cylinder-#2
intake air pressure. Set the engine stop switch
to “
”, then operate the
throttle while pushing the
start switch “
”. (If the
display value changes, the
performance is OK.)
05 Air temperature Displays the air temperature. Compare the actually
measured air temperature
with the meter display
value.
07 Vehicle speed pulse 0–999 Check that the number
increases when the rear
wheel is rotated. The
number is cumulative and
does not reset each time
the wheel is stopped.
08 Lean angle cut-off switch Remove the lean angle cut-
off switch and incline it
more than 65 degrees.
• Upright 0.4–1.4
• Overturned 3.7–4.4
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
battery voltage is lower,
perform recharging.)
Fault
code
No.
Symptom Probable cause of malfunction
Diagnostic
code No.