Yamaha YZF-R1 2020 Service Manual page 498

Connecting the YDT
Remove the protective cap "1", and then connect the YDT to the coupler.
EAS32864
PARTS CONNECTED TO THE ECU
The following parts are connected to the ECU.
When checking for a power short circuit, the couplers must be disconnected from all of the following
parts beforehand.
• Crankshaft position sensor
• Primary injector #1
• Primary injector #2
• Primary injector #3
• Primary injector #4
• Secondary injector #1
• Secondary injector #2
• Secondary injector #3
• Secondary injector #4
• Ignition coil #1
• Ignition coil #2
• Ignition coil #3
• Ignition coil #4
• Throttle position sensor
• Accelerator position sensor
• Intake air pressure sensor
• Atmospheric pressure sensor
• Coolant temperature sensor
• Gear position sensor
• Shift sensor
• Intake air temperature sensor
• O sensor 1 (left side)
2
EAS32865
PARTS CONNECTED TO THE SCU (for YZF-R1M)
The following parts are connected to the SCU.
When checking for a power short circuit, the couplers must be disconnected from all of the following
parts beforehand.
• Front fork stepping motor (left)
• Front fork stepping motor (right)
SELF-DIAGNOSTIC FUNCTION
1
• Fuel pump
• Auxiliary light
• O
2
• Hydraulic unit assembly (ABS ECU)
• Air induction system solenoid
• Throttle servo motor
• Relay unit
• Starter relay
• Radiator fan motor relay
• Meter assembly
• Immobilizer unit
• Steering damper solenoid
• EXUP servo motor
• Cylinder identification sensor
• Intake funnel servo motor
• Intake solenoid
• Headlight control unit
• Handlebar switch (left and right)
• IMU (Inertial Measurement Unit)
• SCU (Suspension Control Unit) (YZF-R1M)
• CCU (Communication Control Unit) (YZF-R1M)
• Sub radiator fan motor
• Auxiliary DC connector
9-3
sensor 2 (right side)