Yamaha MTN850-A 2017 Service Manual page 553

EAS32023
TROUBLESHOOTING DETAILS (EVENT CODE)
Event code No. 30
Event code No.
Item
Fail-safe system
Diagnostic code No.
Tool display
Procedure
Probable cause of malfunc-
Item
tion and check
1 The vehicle has overturned.
2 Installed condition of lean angle
sensor.
3 Defective lean angle sensor.
4 Malfunction in ECU.
30
Latch up detected.
Unable to start engine
Unable to drive vehicle
08
Lean angle sensor output voltage
• 0.4–1.4 (upright)
• 3.7–4.4 (overturned)
Remove the lean angle sensor and incline it more than 65 degrees.
Maintenance job
Raise the vehicle upright.
Check the installed direction
and condition of the sensor.
Execute the diagnostic mode.
(Code No. 08)
Replace if defective.
Refer to "CHECKING THE
LEAN ANGLE SENSOR" on
page 8-165.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-157.
9-20
EVENT CODE TABLE
Confirmation of service com-
pletion
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Engine trouble warning light
does not come on  Service is
finished.
Engine trouble warning light
comes on  Go to item 2.
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Engine trouble warning light
does not come on  Service is
finished.
Engine trouble warning light
comes on  Go to item 3.
Turn the main switch to "ON",
then to "OFF", and then back to
"ON".
Engine trouble warning light
does not come on  Service is
finished.
Engine trouble warning light
comes on  Go to item 4.
Service is finished.