Yamaha FZ1-N 2007 Service Manual page 396

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Fault
code No.
ECU internal malfunc-
Er-2 tion
(output signal error)
ECU internal malfunc-
Er-3 tion
(output signal error)
ECU internal malfunc-
Er-4 tion
(input signal error)
EAS27400
TROUBLESHOOTING METHOD
The engine operation is not normal and the
engine trouble warning light comes on.
1. Check:
• Fault code number
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Check the fault code number displayed on
the meter.
b. Identify the faulty system with the fault
code. Refer to "Self-Diagnostic Function
table".
c. Identify the probable cause of malfunction.
Refer to "Diagnostic code table".
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2. Checking and repair the probable cause of
malfunction.
Fault code No.
Check and repair.
Refer to "TROUBLE-
SHOOTING
DETAILS" on page 8-
50.
Monitor the operation
of the sensors and
actuators in the diag-
nostic mode. Refer to
"Sensor operation
table" and "Actuator
operation table".
3. Perform ECU reinstatement action.
Refer to "Reinstatement method" of table in
"TROUBLESHOOTING DETAILS".
4. Turn the main switch to "OFF" and back to
"ON", then check that no fault code number
is displayed.
email: info@motomatrix.co.uk
Item
No signals are received from the ECU
within the specified duration.
Data from the ECU cannot be received
correctly.
Non-registered data has been received
from the meter.
Fault code No.
Check and repair.
Refer to Self-Diag-
nostic Function table.
FUEL INJECTION SYSTEM
Symptom
NOTE:
If fault codes are displayed, repeat steps (1) to
(4) until no fault code number is displayed.
5. Erase the malfunction history in the diag-
nostic mode. Refer to "Sensor operation
table (Diagnostic code No.62)".
NOTE:
Turning the main switch to "OFF" will not erase
the malfunction history.
The engine operation is not normal but the
engine trouble warning light does not come
on.
1. Check the operation of following sensors
and actuators in the Diagnostic mode.
Refer to "Sensor operation table" and
"Actuator operation table".
01: Throttle position sensor (throttle angle)
02: Atmospheric pressure sensor
05: Intake air pressure sensor
06: Coolant temperature sensor
07: Vehicle speed pulse
09: Fuel system voltage (battery bolt)
21: Neutral switch
30: Ignition coil #1
31: Ignition coil #2
32: Ignition coil #3
33: Ignition coil #4
36: Injector #1
37: Injector #2
38: Injector #3
39: Injector #4
48: AI system solenoid
53: EXUP servo motor
56: Sub-throttle servo motor
8-41
Able/ Able/
unable unable
to start to drive
Unable Unable
Unable Unable
Unable Unable