Yamaha 2008 Fazer FZ1-N Service Manual page 414

Fault
code Symptom
No.
Open circuit detected in the
36 primary lead of the cylinder-
#4 ignition coil.
Open circuit detected in a
39
injector.
Lean angle sensor: open or
41
short circuit detected.
No normal signals are
received from the speed
sensor.
42
Neutral switch:
open or short circuit
detected.
Power supply to the injec-
43 tors and the fuel pump is
not normal.
An error is detected while
reading or writing on
44
EEPROM (CO adjustment
value).
Power supply to the fuel
46 injection system relay is not
normal.
Sub-throttle servo motor
potention circuit:
47
open or short circuit
detected.
Sub-throttle servo motor is
48
stuck.
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.
FUEL INJECTION SYSTEM
Probable cause of malfunction
• Open or short circuit in wire harness.
• Malfunction in ignition coil.
• Malfunction in a component of ignition cut-
off circuit system.
• Malfunction in ECU.
• Open or short circuit sub-wire- harness.
• Open or short circuit in wire harness.
• Improperly installed injector.
• Defective injector.
• Open or short circuit in wire harness.
• Defective lean angle sensor.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in speed sensor.
• Malfunction in ECU.
• Open or short circuit in wire harness.
• Malfunction in 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.
• Open or short circuit in wire harness.
• Detective Sub-throttle servo motor (poten-
tion circuit).
• Open or short circuit in wire harness.
• Stuck Sub-throttle servo motor (mecha-
nism).
• Stuck Sub-throttle servo motor (motor).
• Malfunction in ECU. (The program and data
are not properly written on or read from the
internal memory.)
• Open or short circuit in wire harness.
• Malfunction in meter.
• Defective wire connection of the ECU cou-
pler.
• Malfunction in ECU.
8-45
Diagnostic
code No.
33
36
37
38
39
08
07
21
09
60
—
56
56
—
—