Yamaha XT660R 2007, Supplementary Service Manual

Page: 57 / 81

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FI
FUEL INJECTION SYSTEM
Communication error with the meter
46
Vehicle system power
supply (monitor volt-
age) Power supply to the fuel injec-
tion system relay is not nor-
mal.
— Yes Yes
50
ECU internal malfunc-
tion (memory check
error) Faulty ECU memory. When
this malfunction is detected,
the code number might not
appear on the meter.
— No Yes
—
Start unable warning Relay is not turned ON even if
the crank signal is input while
the start switch is turned ON.
When the start switch is turned
ON while an error is detected
with the fault code of No. 12,
19, 33, 41 or 50. • Engine trouble warning
light flashes when the start
switch is turned ON.
No No
Fault
code No.
Item Symptom Fail-safe action Startability Driveability
Er-1
ECU internal malfunc-
tion (output signal
error) No signals are received from
the ECU.
— No No
Er-2
ECU internal malfunc-
tion (output signal
error) No signals are received from
the ECU within the specified
duration.
— No No
Er-3
ECU internal malfunc-
tion (output signal
error) Data from the ECU cannot be
received correctly.
— No No
Er-4
ECU internal malfunc-
tion (input signal error) Non-registered data has been
received from the meter.
— No No
Fault
code No.
Item Symptom Fail-safe action Startability Driveability