Yamaha Star XVS13AA(C) 2011 Service Manual page 464

Fault
code Symptom
No.
Engine has been left idling.
(The ECU automatically
70
stops the engine after 20
minutes if it is left idling.)
No signals are received
Er-1
from the ECU.
No signals are received
Er-2 from the ECU within the
specified duration.
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 angle
• Fully closed position
• Fully opened position
03 Intake air pressure
05 Air temperature
06 Coolant temperature
FUEL INJECTION SYSTEM
Probable cause of malfunction
• This fault code number does not indicate a
malfunction.
• If the engine was stopped by the ECU after
idling for 20 minutes, the fault code number
is stored in the malfunction history. The fault
code number is displayed only when diag-
nostic code No. 61 is executed.
• Open or short circuit in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in meter.
• Malfunction in ECU.
Meter display
14–20
87–107
Displays the intake air pres-
sure.
Displays the air temperature. Compare the actually mea-
Displays the coolant temper-
ature.
8-57
Diagnostic
code No.
—
—
—
—
—
Checking method
Check with throttle fully
closed.
Check with throttle fully
open.
Set the engine stop switch
to " ", and then operate
the throttle while pushing
the start switch " ". (If the
display value changes, the
performance is OK.)
sured intake air tempera-
ture with the meter display
value.
Compare the actually mea-
sured coolant temperature
with the meter display val-
ue.