Yamaha 2016 Grizzly yfm700gplg Service Manual page 407

Fault code No. 43
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Indicated
09
Procedure
Actuation
50
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of fuel injection sys-
tem relay 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).
43
Fuel system voltage: incorrect voltage supplied to the fuel injector
and fuel pump.
Able to start engine
Able to drive vehicle
09, 50
Fuel system voltage (battery voltage)
Approximately 12.0
Turn the main switch to "
sured battery voltage with the display value. (If the actually measured
battery voltage is low, recharge the battery.)
Actuates the fuel injection system relay five times at one-second inter-
vals.
The "CHECK" indicator and "
come on each time the relay is actuated.
(When the relay is on, the "CHECK" indicator and "
agnostic tool screen go off. When the relay is off, the "CHECK" indicator
and " " on the Yamaha diagnostic tool screen come on.)
Check that the fuel injection system relay 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.
9-52
FUEL INJECTION SYSTEM
" (on), and then compare the actually mea-
" on the Yamaha diagnostic tool screen
Confirmation of service com-
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 displayed
→ 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 displayed
→ Go to item 3.
" on the Yamaha di-
pletion