Checking The Fuses; Replacing The Ecu (Engine Control Unit) - Yamaha R1 Series 2015 Service Manual

EAS30551

CHECKING THE FUSES

The following procedure applies to all of the fus-
es.
ECA13680
NOTICE
To avoid a short circuit, always set the main
switch to "OFF" when checking or replacing
a fuse.
1. Remove:
• Passenger seat/Rider seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
2. Check:
• Fuse
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a. Connect the pocket tester to the fuse and
check the continuity.
TIP
Set the pocket tester selector to "
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
b. If the pocket tester indicates " ", replace the
fuse.
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3. Replace:
• Blown fuse
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a. Set the main switch to "OFF".
b. Install a new fuse of the correct amperage
rating.
c. Set on the switches to verify if the electrical
circuit is operational.
d. If the fuse immediately blows again, check
the electrical circuit.
Fuses
Main
Headlight
Signaling system
Ignition
Radiator fan motor (left)
Radiator fan motor (right)
Hazard
Fuel injection system
1".
Amperage
Q'ty
rating
50.0 A 1
7.5 A 1
7.5 A 1
15.0 A 1
15.0 A 1
10.0 A 1
7.5 A 1
15.0 A 1
8-180
ELECTRICAL COMPONENTS
Fuses
ABS motor
ABS ECU
ABS solenoid
Auxiliary
Backup
Electronic throttle valve
SCU (for YZF-R1M)
Spare
Spare
Spare
Spare
Spare
EWA13310
WARNING
Never use a fuse with an amperage rating
other than that specified. Improvising or us-
ing a fuse with the wrong amperage rating
may cause extensive damage to the electri-
cal system, cause the lighting and ignition
systems to malfunction and could possibly
cause a fire.
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4. Install:
• Rider seat/Passenger seat
Refer to "GENERAL CHASSIS (1)" on page
4-1.
EAS31006

REPLACING THE ECU (Engine Control Unit)

1. Turn the main switch to "OFF".
2. Replace the ECU (Engine Control Unit).
3. Clean the throttle bodies and reset the ISC
(Idle Speed Control) learning value.
Refer to "CHECKING AND CLEANING THE
THROTTLE BODIES" on page 7-12.
4. Check:
• Engine idling speed
Start the engine, warm it up, and then mea-
sure the engine idling speed.
Engine idling speed
1200–1400 r/min
Amperage
Q'ty
rating
30.0 A 1
7.5 A 1
15.0 A 1
2.0 A 1
7.5 A 1
7.5 A 1
7.5 A 1
30.0 A 1
15.0 A 1
10.0 A 1
7.5 A 1
2.0 A 1