Yamaha FJR13AG Service Manual page 588

Fault code No. P1400
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Actuation
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of air induction sys-
tem solenoid coupler. Check the
locking condition of the coupler.
Disconnect the coupler and
check the pins (bent or broken
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 broken
terminals and locking condition
of the pins).
3 Wire harness continuity.
4 Malfunction in air induction sys-
tem solenoid.
P1400
Air induction system solenoid: open or short circuit is detected.
Able to start engine
Able to drive vehicle
48
Actuates air induction system solenoid five times at one-second inter-
vals. The "check" indicator on the Yamaha diagnostic tool screen comes
on each time the air induction system solenoid is actuated.
Check that air induction system solenoid is actuated five times by listen-
ing for the operating sound.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
Open or short circuit → Replace
the wire harness.
Between ECU coupler and air
induction system solenoid cou-
pler.
brown/red–brown/red
Between air induction system
solenoid coupler and relay unit
coupler.
red/blue–red/blue
Between relay unit coupler and
fuel injection system fuse.
brown/white–brown/white
Replace the air induction sys-
tem solenoid.
8-111
FUEL INJECTION SYSTEM
Confirmation of service com-
pletion
Set the start/engine stop switch
to the on position, turn the main
switch to "ON", and then check
the condition of the fault code
using the malfunction mode of
the Yamaha diagnostic tool.
Conditions is "Recovered" → Go
to item 6 and finish the service.
Conditions is "Detected" → Go
to item 2.
Set the start/engine stop switch
to the on position, turn the main
switch to "ON", and then check
the condition of the fault code
using the malfunction mode of
the Yamaha diagnostic tool.
Conditions is "Recovered" → Go
to item 6 and finish the service.
Conditions is "Detected" → Go
to item 3.
Set the start/engine stop switch
to the on position, turn the main
switch to "ON", and then check
the condition of the fault code
using the malfunction mode of
the Yamaha diagnostic tool.
Conditions is "Recovered" → Go
to item 6 and finish the service.
Conditions is "Detected" → Go
to item 4.
Set the start/engine stop switch
to the on position, turn the main
switch to "ON", and then check
the condition of the fault code
using the malfunction mode of
the Yamaha diagnostic tool.
Conditions is "Recovered" → Go
to item 6 and finish the service.
Conditions is "Detected" → Go
to item 5.