3. Battery 12 V 8.6 Ah
4. Starter Relay
5. Main Fuse 30 A
6. ECU Fuse 15 A
7. Fuse Box (1)
8. Ignition Fuse 15 A
9. Fuel Pump Relay
10. Ignition Switch
11. Engine Stop Switch
12. Secondary Fuel Injector #1
13. Secondary Fuel Injector #2
14. Secondary Fuel Injector #3
15. Secondary Fuel Injector #4
16. Joint Connector G
17. Primary Fuel Injector #1
18. Primary Fuel Injector #2
19. Primary Fuel Injector #3
20. Primary Fuel Injector #4

SELF-DIAGNOSIS SYSTEM 17-97
Stick Coils #1, #2, #3, #4 (Service Code 51, 52, 53, 54) (DTC P0351, P0352, P0353,
P0354)
Stick
Stick
Stick
Stick

Coil
Coil
Coil
Coil

#1:
#2:
#3:
#4:

Service
Service
Service
Service

Code
Code
Code
Code

51
52
53
54

Stick Coil Removal/Installation

to the Stick Coil Removal/Installation in the Electri• Refer
cal System chapter.

Stick Coil Primary Winding Resistance Inspection

to the Stick Coil Inspection in the Electrical System
• Refer
chapter.
If the reading is within the standard, check the input voltage (see Stick Coil Input Voltage Inspection).

Stick Coil Input Voltage Inspection
NOTE

○Be sure the battery is fully charged.
the ignition switch off.
• Turn
Remove
the ECU (see ECU Removal in the Fuel System
• (DFI) chapter).

○Do not disconnect the ECU connectors.

a digital meter [A] to the connector [B] with the
• Connect
needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
Stick Coil Input Voltage
Connections to ECU Connector:
For Stick Coil #1
Digital Meter (+) → BK lead (terminal 7)
Digital Meter (–) → Frame Ground Terminal
For Stick Coil #2
Digital Meter (+) → BK/R lead (terminal 6)
Digital Meter (–) → Frame Ground Terminal
For Stick Coil #3
Digital Meter (+) → BK/O lead (terminal 25)
Digital Meter (–) → Frame Ground Terminal
For Stick Coil #4
Digital Meter (+) → BK/G lead (terminal 26)
Digital Meter (–) → Frame Ground Terminal

the input voltage to each primary winding of the
• Measure
stick coils with the engine stopped and with the connec-

•
•

tors joined.
Turn the engine stop switch to run position.
Turn the ignition switch on.
Input Voltage
Standard: Battery Voltage

17-98 SELF-DIAGNOSIS SYSTEM
Stick Coils #1, #2, #3, #4 (Service Code 51, 52, 53, 54) (DTC P0351, P0352, P0353,
P0354)
the ignition switch off.
• Turn
If the input voltage is out of the standard, check the wiring
for continuity (see Stick Coil Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).
If the input voltage is within the standard, check the ECU
for its ground and power supply (see ECU Power Supply
Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

Stick Coil Circuit

1. ECU
2. Engine Ground
3. Battery 12 V 8.6 Ah
4. Starter Relay
5. Main Fuse 30 A
6. Ignition Fuse 15 A
7. Fuse Box (1)
8. Ignition Switch
9. Engine Stop Switch
10. Stick Coil #1
11. Stick Coil #2
12. Stick Coil #3
13. Stick Coil #4
14. Frame Ground

SELF-DIAGNOSIS SYSTEM 17-99
Radiator Fan Relay (Service Code 56) (DTC P0480)
Radiator Fan Relay Removal/Installation

the fuel tank (see Fuel Tank Removal in the Fuel
• Remove
System (DFI) chapter).
• Open the rubber cover.
the radiator fan relay connector [A].
• Disconnect
the radiator fan relay [B] from the bracket.
• Remove
Installation
is the reverse of removal.
•

Radiator Fan Relay Inspection

to the Relay Circuit Inspection in the Electrical Sys• Refer
tem chapter.
If the radiator fan relay is normal, check the wiring for
continuity (see Radiator Fan Relay Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

17-100 SELF-DIAGNOSIS SYSTEM
Radiator Fan Relay (Service Code 56) (DTC P0480)
Radiator Fan Relay Circuit

1. Ignition Switch
2. Fan Motor
3. Water Temperature Sensor
4. ECU
5. Frame Ground
6. Frame Ground
7. Engine Ground
8. Battery 12 V 8.6 Ah

9. Starter Relay
10. Main Fuse 30 A
11. Fuse Box (2)
12. Fan Fuse 15 A
13. Ignition Fuse 15 A
14. Fuse Box (1)
15. Radiator Fan Relay

SELF-DIAGNOSIS SYSTEM 17-101
ETV Actuator (Service Code 58) (DTC P2100)
ETV Actuator Removal
NOTICE
Do not remove ETV actuator in the gear case [A]
since it has been set with precision at the factory.

ETV Actuator Input Voltage Inspection
NOTE

○Be sure the battery is fully charged.
the ignition switch off.
• Turn
Remove
the ECU (see ECU Removal in the Fuel System
• (DFI) chapter)

○Do not disconnect the ECU connectors.

the digital meter [A] to the connector [B] with the
• Connect
needle adapter set.
Special Tool - Needle Adapter Set: 57001-1457
ETV Actuator Input Voltage
Connection:
Digital Meter (+) → W/G lead (ECU terminal 78)
Digital Meter (−) → BK/O lead (ECU terminal 70)

the ignition switch on.
• Turn
Measure
the input voltage.
•
Input Voltage
Standard: About DC 1 ~ 2 V or –1 ~ –2 V

the ignition switch off.
• Turn
If the reading is out of the standard, check the following
items.
ETV Actuator Relay (see ETV Actuator Relay Inspection)
Wiring (see ETV Actuator Circuit)
If the above items are good, replace the throttle body
assy (see Throttle Body Assy Removal/Installation in the
Fuel System (DFI) chapter) and/or the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

17-102 SELF-DIAGNOSIS SYSTEM
ETV Actuator (Service Code 58) (DTC P2100)
ETV Actuator Relay Inspection

• Remove:
Upper Seat Cover (see Seat Cover Removal in the
Frame chapter)
ETV Actuator Relay [A]

a tester [A] and a 12 V battery [B] to the relay [C]
• Connect
as shown.
If the relay does not work as specified, the relay is defective. Replace the relay.
Testing Relay
Criteria: When battery is connected  0 Ω
When battery is disconnected  ∞Ω
Relay Coil Terminals: [1] and [2]
Relay Switch Terminals: [3] and [4]

ETV Actuator Circuit

1. ECU
2. Frame Ground
3. Engine Ground
4. Battery 12 V 8.6 Ah
5. Starter Relay
6. Main Fuse 30 A
7. ETV Actuator Relay
8. Fuse Box (2)
9. ETV Actuator Relay Fuse 10 A
10. ETV Actuator

SELF-DIAGNOSIS SYSTEM 17-103
Exhaust Butterfly Valve Actuator (Service Code 63) (DTC P0475)
Exhaust Butterfly Valve Actuator Removal

to the Exhaust Butterfly Valve Actuator Removal in
• Refer
the Engine Top End chapter.

Exhaust Butterfly Valve Actuator Installation

to the Exhaust Butterfly Valve Actuator Installation
• Refer
in the Engine Top End chapter.

Exhaust Butterfly Valve Actuator Inspection
NOTE

○Be sure the battery is fully charged

• Remove:
Upper Seat Cover (see Seat Cover Removal in the
•
•

Frame chapter)
Front Seat (see Front Seat Removal in the Frame chapter)
Turn the ignition switch on.
Make sure that the pulley turns clockwise, then counterclockwise and then returns slightly clockwise [A] as
shown.

NOTE

○The stop position [B] of the pulley is changed by the
cables tension and the closed position of the exhaust
butterfly valve.
the ignition switch off.
• Turn
If the pulley does not operate, check the exhaust butterfly valve actuator resistance (see Exhaust Butterfly Valve
Actuator Resistance Inspection).

Exhaust Butterfly Valve Actuator Resistance
Inspection

• Remove:
Upper Seat Cover (see Seat Cover Removal in the
•
•

Frame chapter)
Front Seat (see Front Seat Removal in the Frame chapter)
Turn the ignition switch off.
Slide the dust cover [A].

17-104 SELF-DIAGNOSIS SYSTEM
Exhaust Butterfly Valve Actuator (Service Code 63) (DTC P0475)
the exhaust butterfly valve actuator lead con• Disconnect
nector (2 pins connector) [A].
a tester to the exhaust butterfly valve actuator
• Connect
connector.
• Measure the exhaust butterfly valve actuator resistance.
Exhaust Butterfly Valve Actuator Resistance
Connections:
P lead ←→ GY lead
Standard:

5  200 Ω (for reference)

If the reading is 0 or infinity (∞) Ω, replace the exhaust
butterfly valve actuator.
If the reading is in specification, remove the ECU and
check the wiring for continuity between main harness connectors.
○Disconnect the ECU and actuator connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Exhaust Butterfly Valve Actuator Connector [B]
ECU Terminal 54 [C] ←→ Actuator Terminal [D]
ECU Terminal 55 [E] ←→ Actuator Terminal [F]

If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

Exhaust Butterfly Valve Actuator Circuit

1. ECU
2. Exhaust Butterfly Valve Actuator

SELF-DIAGNOSIS SYSTEM 17-105
Air Switching Valve (Service Code 64) (DTC P0410)
Air Switching Valve Removal/Installation

to the Air Switching Valve Removal/Installation in
• Refer
the Engine Top End chapter.

Air Switching Valve Inspection

to the Air Switching Valve Unit Test in the Electrical
• Refer
System chapter.
If the air switching valve is normal, check the wiring for
continuity (see Air Switching Valve Circuit).
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

Air Switching Valve Circuit

1. ECU
2. Engine Ground
3. Battery 12 V 8.6 Ah
4. Starter Relay
5. Main Fuse 30 A

6. Fuse Box (1)
7. Oxygen Sensor Heater Fuse 10 A
8. Ignition Switch
9. Frame Ground
10. Air Switching Valve

17-106 SELF-DIAGNOSIS SYSTEM
Oxygen Sensor Heater (Service Code 67) (DTC P0030)
Oxygen Sensor Heater Removal/Installation
The oxygen sensor heater is built in the oxygen sensor.
So, the heater itself can not be removed. Remove the oxygen sensor (see Oxygen Sensor Removal in the Electrical
System chapter).

Oxygen Sensor Heater Resistance Inspection

the ignition switch off.
• Turn
Remove
the fuel tank (see Fuel Tank Removal in the Fuel
• System (DFI)
chapter).
• Disconnect the oxygen sensor lead connector [A].

a digital meter [A] to the terminals in the oxygen
• Connect
sensor lead connector [B].
• Measure the oxygen sensor heater resistance.
Oxygen Sensor Heater Resistance
Connections: W lead [C] ←→ W lead [D]
Standard: 13  17 Ω @20°C (68°F)

If the reading is out of the standard, replace the sensor.
If the reading is within the standard, check the power
source voltage (see Oxygen Sensor Heater Power
Source Voltage Inspection).

Oxygen Sensor Heater Power Source Voltage
Inspection
NOTE

○Be sure the battery is fully charged.

SELF-DIAGNOSIS SYSTEM 17-107
Oxygen Sensor Heater (Service Code 67) (DTC P0030)
the ignition switch off.
• Turn
Remove
the fuel tank (see Fuel Tank Removal in the Fuel
• System (DFI)
chapter).
Disconnect
the
oxygen sensor lead connector and con• nect the measuring
adapter [A] between these connectors as shown.
Main Harness [B]
Oxygen Sensor [C]
Special Tool - Measuring Adapter: 57001-1700

• Connect a digital meter [D] to the measuring adapter lead.
Oxygen Sensor Heater Power Source Voltage
Connections to Adapter:
Digital Meter (+) → R (main harness BR/R) lead
Digital Meter (–) → Frame Ground terminal

the power source voltage with
• Measure
stopped and with the connector joined.
• Turn the ignition switch on.

the engine

Power Source Voltage
Standard: Battery Voltage

the ignition switch off.
• Turn
If the reading is in specification, but the problem still exists, replace the ECU (see ECU Removal/Installation in
the Fuel System (DFI) chapter).
If the reading is out of the standard, check the following.
ECU Relay Fuse 15 A (see Fuse Inspection in the Electrical System chapter)
Power Source Wiring (see Oxygen Sensor Circuit)
If the fuse and wiring are good, remove the ECU and
check the wiring for continuity between harness connectors.
○Disconnect the ECU and sensor connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Oxygen Sensor Connector [B]
ECU Terminal 56 [C] ←→ Sensor Terminal [D]

If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection in the
Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

17-108 SELF-DIAGNOSIS SYSTEM
Oxygen Sensor Heater (Service Code 67) (DTC P0030)
Oxygen Sensor Circuit

1. ECU
2. Oxygen Sensor
3. Engine Ground
4. Battery 12 V 8.6 Ah
5. Main Fuse 30 A
6. Starter Relay
7. Fuse Box (1)
8. Oxygen Sensor Heater Fuse 10 A
9. Ignition Switch

SELF-DIAGNOSIS SYSTEM 17-109
Fuel Supply System (Service Code 94) (DTC P0170)
Fuel Supply System Inspection
NOTE

○If the motorcycle has any other service code, first inspect the other service code.
the General fuel system (throttle body assy, air
• Inspect
cleaner, fuel tank etc.).
If the General fuel system is good, check the ECU for
its ground and power supply (see ECU Power Supply Inspection).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation).

17-110 SELF-DIAGNOSIS SYSTEM
Battery Voltage (Service Code 97) (DTC P0562)
Battery Voltage Inspection

to the Charging Condition Inspection in the Electri• Refer
cal System chapter for battery voltage inspection.
If the battery voltage is good condition, replace the ECU
(see ECU Removal/Installation in the Fuel System (DFI)
chapter).

Battery Monitor Circuit

1. ECU
2. Frame Ground
3. Engine Ground
4. Battery 12 V 8.6 Ah
5. Starter Relay
6. Main Fuse 30 A
7. ECU Fuse 15 A

8. Fuel Pump Relay
9. Fuse Box (1)
10. Ignition Fuse 15 A
11. Ignition Switch
12. Engine Stop Switch
13. Joint Connector G

SELF-DIAGNOSIS SYSTEM 17-111
ETV Control Circuit (Service Code 98) (DTC P0607)
ETV Control Circuit Inspection

○The ETV control circuit is controlled in the ECU [A].

•

So, the ETV control circuit cannot be inspected.
When the service code 98 is displayed on the LCD, replace the ECU (see ECU Removal/Installation in the Fuel
System (DFI) chapter).

17-112 SELF-DIAGNOSIS SYSTEM
ESD Actuator Error (Service Code E2E)
ESD Actuator Removal

○In this model, ESD actuator is built in the electronic steer-

•

ing damper unit.
Refer to the Electronic Steering Damper Removal in the
Steering chapter.

ESD Actuator Installation

to the Electronic Steering Damper Installation in the
• Refer
Steering chapter.

ESD Actuator Resistance Inspection

the ignition switch off.
• Turn
Remove
the electronic steering damper unit (see Elec• tronic Steering
Damper Removal in the Steering chapter).
a digital meter to the ESD actuator connector [A].
• Connect
Measure
the ESD actuator resistance.
•
ESD Actuator Resistance
Connections: BK lead [1] ←→ O lead [3]
R lead [2] ←→Y lead [4]
Standard:

About 23  29 Ω

If the reading is out of the standard, replace the electronic
steering damper unit.
If the reading is within the standard, check the input voltage (see ESD Actuator Input Voltage Inspection).