•○The
The red warning indicator (LED) and immobilizer warning
indicator [A] blink 1 time and stops for 1 second and the
repeats this cycle to indicate successful registration of the
first ignition key.

to “OFF” the first ignition key and remove it.
• Turn
red warning indicator (LED) and immobilizer warning
• The
indicator [A] blink to display the registration mode.

NOTE

○Insert next key and turn it to “ON” within 15 seconds after previous key is turned to “OFF” and removed otherwise registration mode will be ended and the red warning indicator (LED) and immobilizer warning indicator
go off.
○To return to the registration mode start the registered
ignition key verification procedure. This applies to all
ignition key registration.
the second ignition key to the ignition switch and
• Insert
turn it to “ON.”

NOTE

○Keep the other ignition keys away from the immobilizer
antenna.

16-96 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)

○If there is any problem in the registration, the red warning
indicator (LED) and immobilizer warning indicator [A] blink
to display the collation error.
Immobilizer Amplifier Failure

When Registered Ignition Key is Inserted

Ignition Key Collation Error

second ignition key is registered in the ECU.
•○The
The red warning indicator (LED) and immobilizer warning

•
•

indicator [A] blink 2 times and stops for 1 second and
then repeats this cycle to indicate successful registration
of second ignition key.
Turn to “OFF” the ignition switch and wait for period more
than 15 seconds.
The registration mode automatically ends.

• The red warning indicator (LED) [A] goes off.

ELECTRICAL SYSTEM 16-97
Immobilizer System (Equipped Models)
NOTE

○Turn the ignition switch to “ON” with the registered ignition key.
○Check that the engine can be started using all registered ignition keys.

16-98 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
All Keys Initial Registration Flow Chart

ELECTRICAL SYSTEM 16-99
Immobilizer System (Equipped Models)
Immobilizer System Parts Replacement
Ignition Switch Replacement
Remove:
Air Cleaner Housing (see Air Cleaner Housing Removal
in the Fuel System (DFI) chapter)
Slide the dust cover [A].
Disconnect the lead connectors [B].

•
•
•

a punch mark the punch mark at the center of bro• Using
ken Torx bolt head [A].

NOTE

○Make the punch mark at center of the bolt head surely.
the punch mark with the 2 mm drill.
• Extend
In
addition,
the punch mark with the 3.5 mm drill.
• Lastly, shaveextend
off
the
Torx bolt head with the 6.5 mm drill.
•

NOTE

○Be sure to do not damage the lead wires and component parts with a drill.

• Remove the guide [B] and ignition switch.
the ignition switch [A] with a new one.
• Replace
Hold
the
ignition switch lead [B] with the guide [C] as
• shown. Install
the dampers and washers [D].

a new Torx bolt [A] until the bolt head [B] is broken
• Tighten
[C].
the leads correctly (see Cable, Wire, and Hose Rout• Run
ing section in the Appendix chapter).
the more than two ignition keys (see Key Regis• Register
tration).

16-100 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
Immobilizer Amplifier Replacement
Remove the left lower fairing (see Lower Fairing Removal
in the Frame chapter).
Remove the immobilizer amplifier [A] from the bracket.
Disconnect the connector [B].
Installation is the reverse of removal.

•
•
•
•

ECU Replacement (EUR Model)

NOTICE
Never drop the ECU especially on a hard surface.
Such a shock to the ECU can damage it.

NOTE

○Replace the ECU according to the following procedure
for the models with the ECU guard.
○Refer to the ECU Removal/Installation in the Fuel
System (DFI) chapter for the models without the ECU
guard.

• Remove:
Front Seat (see Front Seat Removal in the Frame chap•

ter)
Using a small chisel or other suitable tool, remove the
ECU guard bolts [A] and ECU guard [B].

• Remove:
Relay Box (see Relay Box Removal)
ECU connectors [A].
• Disconnect
Remove
the
ECU [B].
•

the connectors to the ECU.
• Connect
• Install the ECU guard [A].

NOTICE
Do not pinch the leads.
the new ECU guard bolts [B] using the Kawasaki
• Tighten
genuine screws of which threads are coated with locking
agent.

ELECTRICAL SYSTEM 16-101
Immobilizer System (Equipped Models)
Registered Immobilizer Relational Parts Replacement
Chart
Failed or Lost Part

Ignition
Key

*

Ignition
Keys

Ignition
Switch

•

○

Ignition
Switch

○

*

Replacement Part

•

Main Replacement Part

○

ECU

•

Amplifier
ECU

Amplifier

•

•

Additional Replacement Part

Immobilizer System Inspection

to the Immobilizer Amplifier and Blank Key Detec• Refer
tion section in the Fuel System (DFI) chapter.

16-102 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
Immobilizer System Circuit

1. Ignition Switch
2. ECU
3. Immobilizer/Kawasaki Diagnostic System Connector
4. Frame Ground (5)
5. Frame Ground (4)
6. Engine Ground
7. Battery 12 V 8 Ah
8. Starter Relay
9. Main Fuse 30 A
10. Joint Connector (1)
11. Joint Connector (2)
12. Meter Unit
13. Fuse Box (1)
14. Ignition Fuse 15 A
15. Immobilizer Antenna
16. Immobilizer Amplifier

ELECTRICAL SYSTEM 16-103
Switches and Sensors
Brake Light Timing Inspection

to the Brake Light Switch Operation Inspection in
• Refer
the Periodic Maintenance chapter.

Brake Light Timing Adjustment

to the Brake Light Switch Operation Inspection in
• Refer
the Periodic Maintenance chapter.

Switch Inspection

a tester, check to see that only the connections
• Using
shown in the table have continuity (about zero ohms).

○For the switch housings and the ignition switch, refer to
the tables in the Wiring Diagram.
If the switch has an open or short, repair it or replace it
with a new one.
Rear Brake Light Switch Connections

Side Stand Switch Connections

Oil Pressure Switch Connections*

*: Engine lubrication system is in good condition.

16-104 ELECTRICAL SYSTEM
Switches and Sensors
Water Temperature Sensor Inspection

the water temperature sensor (see Water Tem• Remove
perature Sensor Removal/Installation in the Fuel System

•
•

(DFI) chapter).
Suspend the sensor [A] in a container of coolant so that
the threaded portion is submerged.
Suspend an accurate thermometer [B] with temperature
sensing portions [C] located in almost the same depth.

NOTE

○The sensor and thermometer must not touch the container side or bottom.
the container over a source of heat and gradu• Place
ally raise the temperature of the coolant while stirring the

•

coolant gently.
Using a digital meter, measure the internal resistance of
the sensor.
If the digital meter does not show the specified values,
replace the sensor.

Water Temperature Sensor Resistance
Temperature

Resistance (kΩ)

–20°C (–4°F)

*18.80 ±2.37

0°C (32°F)

*(about 6.544)

40°C (104°F)

1.136 ±0.095

100°C (212°F)

0.1553 ±0.0070

*: Reference Information

Oxygen Sensor Removal
NOTICE
Never drop the sensor especially on a hard surface.
Such a shock to the sensor can damage it.

NOTICE
Do not pull strongly, twist, or bend the oxygen sensor lead. This may cause the wiring open.
the oxygen sensor lead from the clamp [A].
• Clear
Disconnect
the oxygen sensor lead connector [B].
•
• Remove:
Right Lower Fairing (see Lower Fairing Removal in the

•
•

Frame chapter)
Exhaust Pipe Cover (see Muffler Body Removal in the
Engine Top chapter)
Clear the oxygen sensor lead from the clamp [A].
Remove the oxygen sensor [B].

ELECTRICAL SYSTEM 16-105
Switches and Sensors
Oxygen Sensor Installation
NOTICE
Never drop the oxygen sensor [A] especially on a
hard surface. Such a shock to the unit can damage
it. Do not touch the sensing part [B] and filter holes
[C] of the sensor to prevent oil contact. Oil contamination from hands can reduce sensor performance.

• Tighten:
Torque - Oxygen Sensor: 45 N·m (4.6 kgf·m, 33 ft·lb)

the oxygen sensor lead correctly (see Cable, Wire,
• Run
and Hose Routing section in the Appendix chapter).
• Install the removed (see appropriate chapters).

Oxygen Sensor Inspection

to the Oxygen Sensor Inspection in the Fuel System
• Refer
(DFI) chapter.

Fuel Level Sensor Inspection

• Remove:
Fuel Pump (see Fuel Pump Removal in the Fuel System
•

(DFI) chapter)
Check that the float moves up and down smoothly without
binding. It should go down under its own weight.
If the float does not move smoothly, replace the fuel pump.
Float in Full Position [A]
Float in Empty Position [B]

a tester [A], measure the resistance across the ter• Using
minals in the fuel level sensor lead connector [B].
Special Tool - Needle Adapter Set: 57001-1457

If the tester readings are not as specified, or do not
change smoothly according as the float moves up and
down, replace the fuel pump.
Fuel Level Sensor Resistance
Standard: Full position: 9.6  12.4 Ω
Empty position: 222  228 Ω

Gear Position Sensor Removal

• Drain:
Engine Oil (see Engine Oil Change in the Periodic Main•
•

tenance chapter)
Disconnect the connector [A] to remove the gear position
sensor.
Remove the gear position sensor bolt [B] and pull out the
gear position sensor [C].

16-106 ELECTRICAL SYSTEM
Switches and Sensors
Gear Position Sensor Installation
If replace the gear position sensor, select new sensor
which has same mark with the current one.
Mark [A]

Parts Number

H

21176-0845

M

21176-0825

L

21176-0846

the O-ring [A] with a new one.
• Replace
Apply
grease
to the O-ring.
•

a non-permanent locking agent to the threads of
• Apply
the gear position sensor bolt [A].
the gear position sensor [B] to the crankcase.
•○Install
When installing the sensor which is fastened by bolt,
tighten the bolt after placing the sensor on the bottom
surface completely.
Torque - Gear Position Sensor Bolt: 10 N·m (1.0 kgf·m, 89
in·lb)

the connector [C] to the gear position sensor.
• Connect
Fill
the
engine
with recommended engine oil (see Engine
• Oil Change in the
Periodic Maintenance chapter).

Gear Position Sensor Inspection

to the Gear Position Sensor Input Voltage Inspec• Refer
tion in the Fuel System (DFI) chapter.

Outside Temperature Sensor Removal

the meter cover (see Upper Fairing Removal in
• Remove
the Frame chapter).
the connector [A].
• Disconnect
Remove:
• Outside Temperature Sensor Screw [B]
Outside Temperature Sensor [C]

ELECTRICAL SYSTEM 16-107
Switches and Sensors
Outside Temperature Sensor Installation

that the O-ring [A] is in place on the outside tem• Check
perature sensor [B].
the outside temperature sensor.
• Install
Tighten:
•
Torque - Outside Temperature Sensor Screw: 0.50 N·m
(0.05 kgf·m, 4.4 in·lb)

the connector.
• Connect
• Install the removed parts (see appropriate chapters).

16-108 ELECTRICAL SYSTEM
Relay Box
The relay box [A] has relays and diodes. The relays and
diodes can not be removed.

Relay Box Removal/Installation
NOTICE
Never drop the relay box especially on a hard surface.
Such a shock to the relay box can damage it.
the rear fender from the battery case and rear
• Remove
frame (see Flap and Rear Fender Removal in the Frame

•
•
•

chapter).
Disconnect:
Connectors [A]
Remove:
Relay Box [B]
Installation is the reverse of removal.

Relay Circuit Inspection

the relay box (see Relay Box Removal).
• Remove
Check
conductivity
of the following numbered terminals
• by connecting a tester
and one 12 V battery to the relay
box as shown (see Relay Box Internal Circuit in this section).
If the tester does not read as specified, replace the relay
box.
Relay Circuit Inspection (with the battery disconnected)
Headlight Circuit
Relay
ECU Main Relay
Fuel Pump Relay
Starter Circuit Relay
Fan Relay

Tester Connection

Tester Reading (Ω)

1-3

∞

7-6

∞

4-5

Not ∞*

7-8

∞

9-10

Not ∞*

11-16

∞

11-12

∞

17-20

∞

18-19

Not ∞*

*: The actual reading varies with the tester used.

ELECTRICAL SYSTEM 16-109
Relay Box
Relay Circuit Inspection (with the battery connected)
Battery
Connection
(+) (–)

Tester
Connection

Tester
Reading (Ω)