Yamaha R1 Series 2015 Service Manual page 538

Fault code No.
Item
4 Installed condition of crankshaft
position sensor.
Check for looseness or pinch-
ing.
Check the gap (0.8 mm (0.03 in))
between the crankshaft position
sensor and the generator rotor.
5 Defective crankshaft position
sensor.
6 Malfunction in ECU.
Fault code No. 13
Fault code No.
Item
Fail-safe system
Diagnostic code No.
Meter display
Procedure
Item Probable cause of
malfunction and check
1 Connection of intake air pres-
sure sensor 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 wire harness
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).
12
Crankshaft position sensor: no normal signals are received from
the crankshaft position sensor.
Improperly installed sensor
Reinstall or replace the sensor.
Refer to "GENERATOR" on
page 5-35.
Check the crankshaft position
sensor.
Refer to "CHECKING THE
CRANKSHAFT POSITION
SENSOR" on page 8-187.
Replace if defective.
Replace the ECU.
Refer to "REPLACING THE
ECU (Engine Control Unit)" on
page 8-180.
13
Intake air pressure sensor: open or short circuit detected.
Able to start engine
Able to drive vehicle
03
Displays the intake air pressure.
Operate the throttle while pushing the "
switch. (If the display value changes, the performance is OK.)
Maintenance job
Improperly connected
nect the coupler securely or
replace the wire harness.
Improperly connected
nect the coupler securely or
replace the wire harness.
8-57
FUEL INJECTION SYSTEM
Crank the engine.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 5.
Crank the engine.
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 6.
" side of the start/engine stop
Confirmation of service com-
Con- Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 2.
Con- Turn the main switch to "ON".
Fault code number is not dis-
played Service is finished.
Fault code number is displayed
Go to item 3.
pletion