Yamaha R1 Series 2015 Service Manual page 532

TIP
Setting the main switch to "OFF" will not erase the malfunction history.
The engine operation is not normal, but the engine trouble and system warning light does not
come on.
1. Check the operation of the following sensors and actuators in the diagnostic mode. Refer to "TROU-
BLESHOOTING DETAILS (ECU)" on page 8-54.
1: Throttle position sensor signal 1
(throttle angle)
13: Throttle position sensor signal 2
(throttle angle)
14: Accelerator position sensor signal 1
(throttle angle)
15: Accelerator position sensor signal 2
(throttle angle)
30: Cylinder-#1 ignition coil
31: Cylinder-#2 ignition coil
32: Cylinder-#3 ignition coil
33: Cylinder-#4 ignition coil
36: Primary injector #1
37: Primary injector #2
38: Primary injector #3
39: Primary injector #4
40: Secondary injector #1
41: Secondary injector #2
42: Secondary injector #3
43: Secondary injector #4
48: Air induction system solenoid
If a malfunction is detected in the sensors or actuators, repair or replace all faulty parts.
If no malfunction is detected in the sensors and actuators, check and repair the inner parts of the
engine.
EAS30507
DIAGNOSTIC MODE (ECU)
Setting the diagnostic mode
1. Turn the main switch to "OFF".
2. Disconnect the wire harness coupler from the fuel pump.
3. Simultaneously press and hold the up button "1" and center button "2", turn the main switch to "ON",
and continue to press the buttons for 8 seconds or more.
TIP
"ECU" appears on the display.
4. Simultaneously press the up button and center button for 2 seconds or more.
5. While "DIAG" is displayed on the display, simultaneously press the up button "1" and center button
"2" for 2 seconds or more.
FUEL INJECTION SYSTEM
1
2
8-51
GPS 12 : 00
LCS QS LIF A-1
1000 r/min
×
km/h
N
ECU
2
1
SELECT km
1234.5
TRIP-2 km
A 1 1 1
MODE -
ETV TCS SCS