Yamaha MT-03 Service Manual page 308

Fault
Item
code No.
Vehicle system
46 power supply
(monitor voltage)
ECU internal
malfunction
50
(memory check error)
Start unable warning
—
Symptom
Power supply to the fuel
injection system relay is not
normal.
Faulty ECU memory. When
this malfunction is detected,
the code number might not
appear on the meter.
Relay is not turned ON even
if the crank signal is input
while the start switch is
turned ON. When the start
switch is turned ON while an
error is detected with the
fault code of No. 12, 19,
33, 41 or 50.
7-21
FUEL INJECTION SYSTEM
Fail-safe action
—
—
• Engine trouble warning
light flashes when the
start switch is turned ON.
Startability Driveability
Yes Yes
No Yes
No No