Yamaha 2014 MT-07 Service Manual page 471

Fault code No.
Item
C-9 Delete the fault code.
Fault code No. 43
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
09
Procedure
Actuation
50
Procedure
Probable cause of malfunc-
Item
tion and check
1 Connection of relay unit 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).
42
Rear wheel sensor: no normal signals are received from the
A
rear wheel sensor.
B Gear position switch: open or short circuit is detected.
C Clutch switch: open or short circuit is detected.
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
Set the start/engine stop switch to "
measured battery voltage with the meter display value. (If the actually
measured battery voltage is low, recharge the battery.)
Actuates the relay unit five times at one-second intervals.
The "CHECK" indicator and "
come on each time the relay is actuated.
(When the relay is on, the "CHECK" indicator and "
diagnostic tool screen go off. When the relay is off, the "CHECK" indica-
tor and " " on the Yamaha diagnostic tool screen come on.)
Check that the relay unit is actuated five times by listening for the operat-
ing sound.
Maintenance job
Improperly connected → Con-
nect the coupler securely or re-
place the wire harness.
8-66
FUEL INJECTION SYSTEM
Turn the main switch to "ON",
and then rotate the rear wheel
by hand.
Start the engine, and input the
vehicle speed signals by operat-
ing the vehicle at 20 to 30 km/h
(12 to 19 mph).
Check that the fault code num-
ber is not displayed.
The fault code can also be de-
leted by activating the diagnos-
tic mode and selecting
diagnostic code number "63".
", and then compare the actually
" 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.
" on the Yamaha
pletion