Yamaha FJR1300R Service Manual page 474

Code No. 30
Used diagnostic code No. 08 (lean angle cut-off switch)
Inspection operation item and probable cause Operation item and countermeasure
Defective lean angle cut-off switch
The motorcycle has overturned.
Installed state of the lean angle cut-off switch Check the installed area for looseness or
Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
Code No. 31
Used diagnostic code No. 01 (throttle position sensor)
Inspection operation item and probable cause Operation item and countermeasure
Defective O sensor
2
(unable to output a rich signal).
Clogged injector.
Open circuit or ground short in wiring harness
or sub lead.
The fuel pressure is too low.
Compare the fuel pressure at idle and with
throttle open.
About the same → Normal
Too low →
Inspect the fuel pump.
Inspect the delivery hose
for pinching or kinking.
Inspect the pressure reg-
ulator.
Inspect the throttle posi-
tion sensor.
Other:
Malfunction in the fuel system (disconnec-
tion, etc.).
Improper sealing of the intake system.
Connected state of connector
Inspect the coupler for any pins that may
have pulled out.
Check the locking condition of the coupler.
FUEL INJECTION SYSTEM
Symptom The motorcycle has overturned.
Replace if defective.
Raise the motorcycle upright.
pinching.
If there is a malfunction, repair it and connect it
securely.
Lean angle cut-off switch coupler
Main wiring harness ECU coupler
Symptom The amount of air-fuel ratio feedback compensation is maintained contin-
uously in the vicinity of the upper limit.
Replace if defective.
Replace if defective.
Refer to "CHECKING THE INJECTOR".
Repair or replace if there is an open or short
circuit.
Main wiring harness
Black/Blue - White
Gray/Green - Blue
Replace if defective.
Refer to "CHECKING THE FUEL PUMP AND
PRESSURE REGULATOR OPERATION".
Repair or replace if there is a malfunction.
Replace if defective.
Refer to "CHECKING THE FUEL PUMP AND
PRESSURE REGULATOR OPERATION".
Execute diagnostic code 01.
Repair or replace if there is a malfunction.
If there is a malfunction, repair it and connect it
securely.
O sensor coupler
2
Engine wiring harness coupler
Main wiring harness ECU coupler
Sub-wire harness coupler
7 - 23
FI
Reinstatement
method
Reinstated by turn-
ing the main switch
ON (however, the
engine cannot be
restarted unless
the main switch is
first turned OFF).
Reinstatement
method
Reinstated by
starting the engine,
warming it up until
the coolant tem-
perature is 60 °C
(140 °F) or more,
and then running it
between 2,000 ~
3,000 r/min until
the engine trouble
indicator turns off.