Yamaha FZ09E Service Manual page 398

FUEL INJECTION SYSTEM
Fault code No.
41
Item Lean angle sensor: open or short circuit detected.
2
Connection of w ire harness Improperly connected
~
Turn the main switch to "ON",
ECU coupler. Connect the coupler securely then to "OFP', and then back
Check the locking condition or replace the w ire harness. to "ON".
of the coupler. Fault code number is not dis·
Disconnect the coupler and
played
~
Service is finished.
check the pins (bent or bro- Fault code number is dis-
ken terminals and locking played
~
Go to item 3.
condition of the pins).
3 W ire harness continuity. Open or short circuit
~
Turn the main switch to "ON",
Replace the wire harness. then to "OFF", and then back
Between lean angle sensor to "ON".
coupler and ECU coupler. Fault code number is not dis-
yellow/green-yellow/green
played
~
Service is finished.
Between lean angle sensor Fault code number is dis-
coupler and joint connector. played
~
Go to item 4.
blue-blue
black/blue- black/blue
Between joint connector and
ECU coupler.
blue-blue
black/blue- black/blue
4 Defective lean angle sensor. Execute the diagnostic Turn the main switch to "ON",
mode. (Code No. 08) then to "OFP', and then back
Replace if defective.
to "ON".
Refer to "CHECKING T HE Fault code number is not dis-
LEAN ANGLE SENSOR" on played
~
Service is finished.
page 8-101 . Fault code number is dis-
played
~
Go to item 5.
5 Malfunction in ECU. Replace the ECU.
Refer to " REPLACING THE
ECU (engine control unit)" on
page 8-93.
Fault code No. 42
A
Speed sen sor: no normal s ignals are received from the
speed sensor.
Item
B
Neutral switch : open or short circuit is detected.
c
Clutch switch: open or short c irc uit is detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 07
Meter display Vehicle speed pulse
0- 999
8-63