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Fault
code
Symptom
No.
Data from the ECU cannot
Er-3
be received correctly.
Non-registered data has
Er-4
been received from the
meter.
Sensor operation table
Diag-
nostic
Item
code
No.
01
Throttle position sensor (for
throttle valves) signal 1
• Fully closed position
• Fully opened position
02
Atmospheric pressure
03
Intake air pressure
05
Intake air temperature
06
Coolant temperature
07
Vehicle speed pulse
08
Lean angle sensor
• Upright
• Overturned
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Improper connection in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
• Improper connection in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
Meter display
12–21
97–106
Displays the atmospheric
pressure.
Displays intake air pressure.
Displays the intake air tem-
perature.
Displays the coolant tempera-
ture.
0–999
0.4–1.4
3.7–4.4
8-40
Diagnostic
code No.
—
—
Checking method
Check with throttle valves
fully closed.
Check with throttle valves
fully opened.
Compare the actually mea-
sured atmospheric pres-
sure with the meter display
value.
Compare the actually mea-
sured atmospheric pres-
sure with the meter display
value without cranking the
engine.
Compare the actually mea-
sured air temperature with
the meter display value.
Compare the actually mea-
sured coolant temperature
with the meter display
value.
Check that the number
increases when the rear
wheel is rotated. The num-
ber is cumulative and does
not reset each time the
wheel is stopped.
Remove the lean angle
sensor and incline it more
than 65 degrees.
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