Yamaha 2007 FZ6-NA Service Manual page 413

Fault
code Symptom
No.
No normal signals are
received from the speed
sensor.
42
Open or short circuit is
detected in the neutral
switch.
The ECU is unable to moni-
tor the battery voltage
43
(an open circuit in the line to
the ECU).
Error is detected while
reading or writing on
44
EEPROM (CO adjustment
value).
Power supply to the fuel
46 injection system is not nor-
mal.
Faulty ECU memory. (When
this malfunction is detected
50 in the ECU, the fault code
number might not appear
on the meter.)
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
code
No.
Throttle angle
• Fully closed position
01
• Fully opened position
• Open or short circuit in wire harness.
• Defective speed sensor.
• Malfunction in vehicle speed sensor
detected unit.
• Defective neutral switch.
• Malfunction in the engine side of the neutral
switch.
• Malfunction in ECU.
• Open circuit in wire harness.
• Malfunction in ECU.
• Malfunction in ECU. (The CO adjustment
value is not properly written on or read from
the internal memory).
• Malfunction in the charging system. Refer to
"CHARGING SYSTEM" on page 8-11.
• Malfunction in ECU. (The program and data
are not properly written on or read from the
internal memory.)
• Open or short circuit in communication line.
• Malfunction in meter unit.
• Malfunction in ECU.
• Open or short circuit in communication line.
• Malfunction in meter unit.
• Malfunction in ECU.
• Open or short circuit in communication line.
• Malfunction in meter unit.
• Malfunction in ECU.
• Open or short circuit in communication line.
• Malfunction in meter unit.
• Malfunction in ECU.
Item
15–17
97–100
FUEL INJECTION SYSTEM
Probable cause of malfunction
Meter display
8-40
Diagnostic
code No.
07
21
09
60
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Checking method
Check with throttle fully
closed.
Check with throttle fully
open.