Yamaha FJR 1300 AE 2014 Service Manual page 509

Fault code No.
Item
3 Defective lean angle sensor.
4 Malfunction in ECU.
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of mal-
Item
function and check
1 Connection of cylinder-#1 ig-
nition coil coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
2 Connection of ECU coupler.
Check the locking condition
of the coupler.
Disconnect the coupler and
check the pins (bent or bro-
ken terminals and locking
condition of the pins).
3 Wire harness continuity.
30
Latch up detected.
Execute the diagnostic
mode. (Code No. 08)
Replace if defective.
Refer to "CHECKING THE
LEAN ANGLE SENSOR" on
page 8-205.
Replace the ECU.
Refer to "REPLACING THE
ECU (engine control unit)" on
page 8-196.
33
Cylinder-#1 ignition coil: open or short circuit detected in the
primary lead of the cylinder-#1 ignition coil.
Able to start engine (depending on the number of faulty cylinders)
Able to drive vehicle (depending on the number of faulty cylinders)
30
Actuates the cylinder-#1 ignition coil five times at one-second in-
tervals.
Illuminates the engine trouble warning light.
Check that a spark is generated five times.
• Connect an ignition checker.
Maintenance job
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Improperly connected →
Connect the coupler secure-
ly or replace the wire har-
ness.
Open or short circuit → Re-
place the wire harness.
Between cylinder-#1 ignition
coil coupler and ECU cou-
pler.
orange–orange
8-58
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
then to "OFF", and then back
to "ON".
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.
Confirmation of service
completion
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 2.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 3.
Start the engine and let it idle
for approximately 5 seconds.
Fault code number is not dis-
played → Service is finished.
Fault code number is dis-
played → Go to item 4.