Yamaha FJR13AEV(C) Service Manual page 544

Fault
code Symptom
No.
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 Pressure difference
(atmospheric pressure and
intake air pressure)
05 Intake air temperature
06 Coolant temperature
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Open or short circuit in front cowling wire
harness.
• Open or short circuit in wire harness.
• Malfunction in meter assembly.
• Malfunction in ECU.
• Defective wire connection of the ECU cou-
pler.
• Open or short circuit in front cowling wire
harness.
• Open or short circuit in wire harness.
• Malfunction in meter assembly.
• Malfunction in ECU.
• Open or short circuit in front cowling wire
harness.
• Open or short circuit in wire harness.
• Malfunction in meter assembly.
• Malfunction in ECU.
• Open or short circuit in front cowling wire
harness.
• Open or short circuit in wire harness.
• Malfunction in meter assembly.
• Malfunction in ECU.
Meter display
15–17
97–100
Displays the intake air pres-
sure.
Displays the intake air tem-
perature.
Displays the coolant temper-
ature.
8-73
Diagnostic
code No.
—
—
—
—
Checking method
Check with throttle fully
closed.
Check with throttle fully
open.
Set the engine stop switch
to " ", and then push the
start switch " ". (If the dis-
play value changes, the
performance is OK.)
Compare the actually mea-
sured intake air tempera-
ture with the meter display
value. (*1)
Compare the actually mea-
sured coolant temperature
with the meter display val-
ue.