Yamaha FJR1300A(D), Service Manual

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FUEL INJECTION SYSTEM
8-43
Fault code No. 13
Item Intake air pressure sensor: open or short circuit detected.
Fail-safe system
Able to start engine
Able to drive vehicle
Diagnostic code No. 03
Meter display Displays the intake air pressure.
Procedure
Shift the transmission into gear, extend the sidestand, and then
operate the throttle while pushing the “
” side of the start/engine
stop switch. (If the display value changes, the performance is OK.)
Item
Probable cause of mal-
function and check
Maintenance job
Confirmation of service
completion
1 Connection of intake air
pressure sensor 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). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 2.
2 Connection of wire harness
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). Improperly connected
→
Connect the coupler secure-
ly or replace the wire har-
ness.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 3.
3 Wire harness continuity. Open or short circuit
→
Re-
place the wire harness.
Between intake air pressure
sensor coupler and ECU
coupler.
pink/white–pink/white
Between intake air pressure
sensor coupler and joint cou-
pler.
blue–blue
black/blue–black/blue
Between joint coupler and
ECU coupler.
blue–blue
black/blue–black/blue
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 4.
4 Installed condition of intake
air pressure sensor.
Check for looseness or
pinching. Improperly installed sensor
→
Reinstall or replace the
sensor.
Turn the main switch to “ON”.
Fault code number is not dis-
played
→
Service is finished.
Fault code number is dis-
played
→
Go to item 5.