• The registration mode automatically ends.

16-88 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)

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

NOTE

○Turn the ignition switch to “ON” with the registered ignition key.

○Check that the engine can be started using all registered ignition keys.
Case 4: When all registered ignition keys are faulty or
lost.
The all registered ignition keys replacement is considered
very rare case. However if it is required, the following is
necessary.

NOTE

○The ECU must be replaced with a new one because
the registered ignition key code that is registered in the
current ECU can not be rewritten.

• Prepare a new ECU [A] and 2 new ignition keys [B].
NOTE

○The key registration unit is not required.
○After replacing the ECU, be sure to register the 2 ignition
keys. If the 2 keys are not registered, the engine can
not be started.

the first ignition key into the ignition switch and turn
• Insert
it to “ON.”

NOTE

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

ELECTRICAL SYSTEM 16-89
Immobilizer System (Equipped Models)

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

Ignition Key Collation Error

first ignition key is registered in the ECU.
•○The
The red warning indicator light (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 light (LED) and immobilizer
• The
warning 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 light (LED) goes 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.”

16-90 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)

○If there is any problem in the registration, the red warning
indicator light (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 light (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 light (LED) [A] goes off.

ELECTRICAL SYSTEM 16-91
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.

16-92 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
All Keys Initial Registration Flow Chart

ELECTRICAL SYSTEM 16-93
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)
Disconnect:
Ignition Switch Lead Connector [A]
Immobilizer Antenna Lead Connector [B]
Open the clamp [C] and free the ignition switch lead and
immobilizer antenna lead.

•
•
•

the bolt [A] and free the ignition switch lead and
• Remove
immobilizer antenna lead.

• Remove:
Steering Stem Head (see Handlebar Removal in the
•

Steering chapter)
Using a small chisel or punch [A], turn out the Torx bolts.

• Remove:
Washers [A]
Dampers [B]
Ignition Switch [C]
Collars [D]

16-94 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
the ignition switch [A] and two Torx bolts [B] with
• Replace
new ones.
• Install:
Dampers [C]
Collars [D]
Washers [E]
Torx Bolts

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

Immobilizer Amplifier Replacement
Remove:
Center Inner Fairing (see Center Inner Fairing Removal
in the Frame chapter)
Left Lower Fairing (see Lower Fairing Removal in the
Frame chapter)
Disconnect the connector [A].
Pull out the immobilizer amplifier [B] together with the rubber protector [C] from the air intake duct.
Install the removed parts (see appropriate chapters).

•
•
•
•

ECU Replacement
Refer to the ECU Removal/Installation in the Fuel System
(DFI) chapter.

•

ELECTRICAL SYSTEM 16-95
Immobilizer System (Equipped Models)
Immobilizer Relational Parts Replacement Chart
Failed or Lost Part

Ignition
Key

Ignition
Key

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.

16-96 ELECTRICAL SYSTEM
Immobilizer System (Equipped Models)
Immobilizer System Circuit

1. ECU
2. Immobilizer/Kawasaki Diagnostic System Connector
3. Engine Ground
4. Battery 12 V 8.6 Ah
5. Frame Grounds
6. Main Fuse 30 A
7. Starter Relay
8. Fuse Box (1)
9. Ignition Fuse 15 A
10. Joint Connector E
11. Meter Unit
12. Immobilizer Antenna
13. Immobilizer Amplifier
14. Ignition Switch
15. Joint Connector J
16. Joint Connector K

ELECTRICAL SYSTEM 16-97
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.

○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.

16-98 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 temperature-sensing projection [C] is submerged.
Suspend an accurate thermometer [B] with temperature
-sensing projection located in almost the same depth with
the sensor.

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 tester, measure the internal resistance of the sensor.
If the tester 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

Fuel Reserve Switch Inspection

the fuel tank with fuel and close the fuel tank cap.
• Fill
Remove
the front seat (see Front Seat Removal in the
• Frame chapter).
• Disconnect the fuel pump lead connector [A].

the test light [A] (12 V 3.4 W bulb in a socket
• Connect
with leads) and the 12 V battery [B] to the fuel pump lead
connector [C].
Connections:
Battery (+) → 12 V 3.4 W Bulb (One Side)
12 V 3.4 W Bulb (Other Side) → R/BK lead [D]
Battery (–) → BK/W lead [E]

If the test light turn on, the reserve switch is defective.
Replace the fuel pump.

ELECTRICAL SYSTEM 16-99
Switches and Sensors
the fuel out from the fuel tank with a commercially
• Draw
available pump (see Fuel Tank Removal in the Fuel Sys-

•

tem (DFI) chapter).
Connect the test light (12 V 3.4 W bulb in a socket with
leads) and the 12 V battery to the fuel pump lead connector in the same way again.
Connections:
Battery (+) → 12 V 3.4 W Bulb (One Side)
12 V 3.4 W Bulb (Other Side) → R/BK lead
Battery (–) → BK/W lead

If the test light does not light, replace the fuel pump.

NOTE

○It may take a long time to turn on the test light in case
that the fuel reserve switch is inspected just after the
fuel is drawn. Leave the fuel pump lead connector with
leads for inspection connected for few minutes.
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.

• Remove:
Fuel Tank (see Fuel Tank Removal in the Fuel System
(DFI) chapter)
Right Lower Fairing (see Lower Fairing Removal in the
Frame chapter)
Disconnect the oxygen sensor lead connector [A].

•
the clamp [A].
• Open
Remove
the oxygen sensor [B].
•

16-100 ELECTRICAL SYSTEM
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] to prevent oil
contact. Oil contamination from hands can reduce
sensor performance.

• Tighten:
Torque - Oxygen Sensor: 25 N·m (2.5 kgf·m, 18 ft·lb)

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

Oxygen Sensor Inspection

to the Oxygen Sensor
• Refer
-Diagnosis System chapter.

Inspection in the Self

Oxygen Sensor Heater Inspection

to the Oxygen Sensor Heater Resistance Inspec• Refer
tion in the Self-Diagnosis System chapter.

Gear Position Sensor Removal

• Remove:
Left Lower Fairing (Lower Fairing Removal in the Frame
•

chapter)
Engine Sprocket Cover (see Engine Sprocket Removal
in the Final Drive chapter)
Disconnect the gear position sensor connector [A].

• Remove:
Gear Position Sensor Bolt [A]
Gear Position Sensor [B]

ELECTRICAL SYSTEM 16-101
Switches and Sensors
Gear Position Sensor Installation

the O-ring [A] with a new one.
• Replace
grease to the new O-ring.
• Apply
Install
the gear position sensor so that the slit [B] fits to
• the projection
[C] on the shift drum.
Apply
a
non-permanent
locking agent to the threads of
• the gear position sensor bolt
and tighten it.

○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 leads correctly (see Cable, Wire, and Hose Rout• Run
ing section in the Appendix chapter).
• Install the removed parts (see appropriate chapters).

Gear Position Switch Inspection

to the Gear Position Sensor Output Voltage Inspec• Refer
tion in the Self-Diagnosis System chapter.

16-102 ELECTRICAL SYSTEM
Relay
Relay Inspection

• Remove the relay (see Parts Location Section).
Other than Headlight Relay
Connect a digital meter [A] and a 12 V battery [B] to the
relay [C] 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]

Headlight Relay
Connect a digital meter [A] and a 12 V battery [B] to the
relay 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]

Diode Removal
Diode (Starter)
Remove:
Left Inner Cover (see Inner Cover Removal in the Frame
chapter)
Unlock the hook [A] to take off the fuse box (1) [B].
Unlock the hook [C] to lift up the lid.

•
•
•

the diode (starter) [A] straight out the fuse box (1) with
• Pull
needle nose pliers.

ELECTRICAL SYSTEM 16-103
Relay
Diode (Headlight)
Remove:
Front Seat (see Front Seat Removal in the Frame chapter)
Unlock the hook [A] to lift up the lid.

•
•

the diode (starter) [A] straight out the fuse box (2) with
• Pull
needle nose pliers.

Diode Array (Starter)
Remove:
Right Lower Seat Cover (see Seat Cover Removal in the
Frame chapter)
Remove the tape [A] to free the diode array (starter) [B].
Disconnect the connector [C].

•
•
•

Diode Installation
Diode (starter) and Diode (Headlight)
Install the diode (starter) and diode (headlight) on the original positions.
Fit the projection [A] of the diode in the groove [B] of the
fuse box.
Install the removed parts (see appropriate chapters).

•
•
•

Diode Array (Starter)
Connect the connector [A].
Hold the diode array (starter) [B] to the main harness [C]
with tape [D].
40 mm (1.6 in.) [E]
Install the removed parts (see appropriate chapters).