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BRAKES 12-27
Brake Hose
Brake Hose and Pipe Removal/Installation

to the Brake Hose and Pipe Replacement in the
• Refer
Periodic Maintenance chapter.

Brake Hose and Pipe Inspection

to the Brake Hose and Pipe Damage and Instal• Refer
lation Condition Inspection in the Periodic Maintenance
chapter.

12-28 BRAKES
Anti-Lock Brake System (Equipped Models)
Parts Location
Front Wheel Rotation Sensor [A]
Front Wheel Rotation Sensor Rotor [B]

Rear Wheel Rotation Sensor [A]
Rear Wheel Rotation Sensor Rotor [B]

Yellow ABS Indicator Light (LED) [A]

ABS Hydraulic Unit [A]

Fuse Box (2) [A]
ABS Kawasaki Diagnosis System Connector [B]
ABS Self-diagnosis Terminal [C]

BRAKES 12-29
Anti-Lock Brake System (Equipped Models)
ABS System Wiring Diagram

1. Ignition Switch
2. Front Wheel Rotation Sensor
3. Front Brake Light Switch
4. Fuse Box (1)
5. Ignition Fuse 15 A
6. Brake Light/Hone Fuse 7.5 A
7. ABS Fuse 30 A
8. Fuse Box (2)
9. ECU
10. Rear Wheel Rotation Sensor
11. Rear Brake Light Switch

12. ABS Kawasaki Self-diagnosis System Connector
13. ABS Self-diagnosis Terminal
14. ABS Hydraulic Unit
15. Frame Ground (4)
16. Engine Ground
17. Battery 12 V 8 Ah
18. Starter Relay
19. Main Fuse 30 A
20. Frame Ground (10)
21. Meter Unit
22. Yellow ABS Indicator Light (LED)

○Color Codes:
BK: Black
BL: Blue
BR: Brown
CH: Chocolate
DG: Dark Green
G: Green

GY: Gray
LB: Light Blue
LG: Light Green
O: Orange
P: Pink

PU: Purple
R: Red
V: Violet
W: White
Y: Yellow

12-30 BRAKES
Anti-Lock Brake System (Equipped Models)
ABS Hydraulic Unit Terminal Names

2. Unused
3. Rear Wheel Rotation Sensor Signal Output: R/Y
4. Front and Rear Brake Light Switch Signal: BL/R
5. ABS Kawasaki Self-diagnosis System Terminal: P
6. Power Supply to Rear Wheel Rotation Sensor: W/G
7. Power Supply: BR/W
8. Power Supply to Front Wheel Rotation Sensor: R/BK
9. Ground: BK
11. Unused
12. Unused
13. Yellow ABS Indicator Light (LED): BL/Y
14. ABS Self-diagnosis Terminal: GY
15. Rear Wheel Rotation Sensor Signal Input: BK/O
16. Unused
17. Front Wheel Rotation Sensor Signal Input: BK/W
18. Power Supply to ABS Motor Relay: R/W

BRAKES 12-31
Anti-Lock Brake System (Equipped Models)
ABS Servicing Precautions
There are a number of important precautions that should
be followed servicing the ABS.
○This ABS is designed to be used with a 12 V sealed battery as its power source. Do not use any other battery
except for a 12 V sealed battery as a power source.
○Do not reverse the battery cable connections. This will
damage the ABS hydraulic unit.
○To prevent damage to the ABS parts, do not disconnect
the battery cables or any other electrical connections
when the ignition switch is on or while the engine is
running.
○Take care not to short the leads that are directly connected to the battery positive (+) terminal to the chassis
ground.
○Do not turn the ignition switch on while any of the ABS
electrical connectors are disconnected. The ABS hydraulic unit memorizes service codes.
○Do not spray water on the electrical parts, ABS parts, connectors, leads and wiring.
○If a transceiver is installed on the motorcycle, make sure
that the operation of the ABS is not influenced by electric
wave radiated from the antenna. Locate the antenna as
far as possible away from the ABS hydraulic unit.
○Whenever the ABS electrical connections are to be disconnected, first turn off the ignition switch.
○The ABS parts should never be struck sharply, as with
a hammer, or allowed to fall on a hard surface. Such a
shock to the parts can damage them.
○The ABS parts cannot be disassembled. Even if a fault is
found, do not try to disassemble and repair the ABS parts,
replace it.
○The ABS has many brake lines, pipes, and leads. And
the ABS cannot detect problems with the conventional
braking system (brake disc wear, unevenly worn brake
pad, and other mechanical faults). To prevent trouble,
check the brake lines and pipes for correct routing and
connection, the wiring for correct routing, and the brakes
for proper braking power. Be sure to check for fluid leakage, and bleed the brake line thoroughly.

WARNING
Air in the brake lines diminish braking performance
and can cause an accident resulting in injury or
death. If any of the brake line fittings, including the
ABS hydraulic unit joint bolts, or the bleed valve is
opened at any time, the air must be bled completely
from the brake line. If the brake lever has a soft or
“spongy” feeling mushy when it is applied, there
might be air in the brake lines or the brake may be
defective. Do not operate the vehicle and service
the brake system immediately.

NOTICE
Do not ride the motorcycle with air in the brake line,
or the ABS could malfunction.

12-32 BRAKES
Anti-Lock Brake System (Equipped Models)

○The yellow ABS indicator light (LED) [A] may light if the
tire pressure is incorrect, a non-recommended tire is installed, or the wheel is deformed. If the indicator light
lights, remedy the problem and clear the service code.

WARNING
Use of non-recommended tires may cause malfunctioning of ABS and can lead to extended braking
distance resulting in an accident causing serious
injury or death. Always use recommended standard tires for this motorcycle.

○The yellow ABS indicator light (LED) may come on if the
engine is run with the motorcycle on its stand and the
transmission in gear. If the indicator light comes on, just
turn the ignition switch off, then clear service code 42,
which indicates a “Faulty front wheel rotation sensor.”
○When the ABS operates, the ABS makes noise and the
rider feels the reaction force on the brake lever and brake
pedal. This is a normal condition. It informs the rider that
the ABS is operating normally.
○Service codes detected once by the ABS hydraulic unit
will be memorized in the ABS hydraulic unit. Therefore,
after maintenance work is finished, be sure to erase the
service codes. Do not erase the service codes during
troubleshooting. Wait until all the checks and repair work
are finished to prevent duplication of previous service
codes and unnecessary maintenance work.
○Before delivering the motorcycle to the customer, be
sure to erase any service codes which might be stored in
the ABS hydraulic unit. Using the self-diagnosis feature,
make sure that the yellow ABS indicator light (LED) lights.
A fully charged battery is a must for conducting reliable
self-diagnosis. Test run the motorcycle at a speed of
more than 30 km/h (19 mph) to see that the yellow ABS
indicator light (LED) does not come on. Finally, test run
the motorcycle at a speed of more than 30 km/h (19 mph)
and brake suddenly to see that the motorcycle stops
without loss of steering control and the ABS operates
normally (The reaction force generated is felt in the brake
lever and pedal.). This completes the final inspection.

BRAKES 12-33
Anti-Lock Brake System (Equipped Models)
ABS Troubleshooting Outline
When an abnormality in the system occurs, the yellow
ABS indicator light (LED) lights up to alert the rider. In addition, the nature of the fault is stored in the memory of the
ABS hydraulic unit and when in the self-diagnosis mode,
the service code [A] is indicated by the number of times the
yellow ABS indicator light (LED) blinks. The service codes
stored in memory are not erased until the mode has been
changed to the fault erase mode after the fault has been
corrected. Therefore, after correcting the problem, always
erase the service codes and then run the self-diagnosis program to confirm normal signal output. When, due to a malfunction, the yellow ABS indicator light (LED) remains lit, get
a thorough understanding of the background before starting
the repair work. Ask the rider about the conditions [B] under
which the problem occurred and try to determine the cause
[C]. Do not rely solely on the ABS self-diagnosis function,
use common sense; check the brakes for proper braking
power, and brake fluid level, search for leaks, etc.
Even when the ABS is operating normally, the yellow ABS
indicator light (LED) may light up under the conditions listed
below. Turn the ignition switch off to stop the indicator light.
If the motorcycle runs without erasing the service code, the
light may light up again.
○After continuous riding on a rough road.
○When the engine is started with the stand raised and the
transmission engaged, and the rear wheel turns.
○When accelerating so abruptly that the front wheel leaves
the ground.
○When the ABS has been subjected to strong electrical
interference.
○When tire pressure is abnormal. Adjust tire pressure.
○When a tire different in size from the standard size is being
used. Replace with standard size.
○When the wheel is deformed. Replace the wheel.
Much of the ABS troubleshooting work consists of confirming continuity of the wiring. The ABS parts are assembled and adjusted by the manufacturer, so there is no need
to disassemble or repair them. Replace the ABS hydraulic
unit.
The basic troubleshooting procedures are listed below.
Carry out pre-diagnosis inspections as a preliminary inspection.
Determine the fault using the self-diagnosis function.
Check wiring and connections from the ABS hydraulic unit
connector to the suspected faulty ABS part, using a digital
meter.

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12-34 BRAKES
Anti-Lock Brake System (Equipped Models)
inspect the wiring for signs of burning or fraying.
• Visually
If any wiring is poor, replace the damaged wiring.
each connector [A] apart and inspect it for corrosion,
• Pull
dirt and damage.
If the connector is corroded or dirty, clean it carefully. If it
is damaged, replace it.
Check the wiring for continuity.
○Use the wiring diagram to find the ends of the lead which
is suspected of being a problem.
○Connect the digital meter between the ends of the leads.
If the digital meter does not read about 0 Ω, the lead is
defective. Replace the main harness if necessary.

•

down suspicious parts and close in on the faulty
• Narrow
ABS part by repeating the continuity tests.
If no abnormality is found in the wiring or connectors, the
ABS parts are the next likely suspects. Check each part
one by one.
If an abnormality is found, replace the affected ABS part.

BRAKES 12-35
Anti-Lock Brake System (Equipped Models)
ABS Diagnosis Flow Chart

12-36 BRAKES
Anti-Lock Brake System (Equipped Models)
Inquiries to Rider

BRAKES 12-37
Anti-Lock Brake System (Equipped Models)

12-38 BRAKES
Anti-Lock Brake System (Equipped Models)

BRAKES 12-39
Anti-Lock Brake System (Equipped Models)
Pre-Diagnosis Inspection 1

12-40 BRAKES
Anti-Lock Brake System (Equipped Models)
Pre-Diagnosis Inspection 2

Self-diagnosis Outline
When the yellow ABS indicator light (LED) has blinked or goes on, the ABS hydraulic unit memorizes
and stores the service code for the service person to troubleshoot easily. The service code memory
is powered directly by the battery and cannot be canceled by the ignition switch.
The ABS hydraulic unit can memorize up to all service codes. Further service codes are memorized
after erasing the preceding all service codes. If there is no fault, the yellow ABS indicator light (LED)
lights, indicating that “The ABS is normal.”

Self-diagnosis Procedures

○Before performing the self-diagnosis procedures, make
sure that the yellow ABS indicator light (LED) [A] stays on
to indicate any electrical problem occurring in the ABS.

NOTE

○Use a fully charged battery for performing self-diagnosis
procedure properly. A insufficient battery may cause
improperly result.
○The self-diagnosis procedures should be done with the
motorcycle is stopped.

BRAKES 12-41
Anti-Lock Brake System (Equipped Models)
ABS hydraulic unit can be store the service codes
• The
including previous ones.
read out the current service code, erase the stored
• To
service codes once prior reading the service code (see

•

Service Code Clearing Procedures).
Test ride the motorcycle with 30 km/h (19 mph) or more in
a safety area to store the service code, which correspond
to the current problems.

the front seat (see Front Seat Removal in the
• Remove
Frame chapter).
the self-diagnosis terminal [A] (Gray) to a frame
• Ground
ground, using a suitable auxiliary lead. Keep the auxiliary

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lead ground during self-diagnosis procedure.
Turn the ignition switch on and read the service code (see
How to Read Service Code).
To exit the self-diagnosis mode, remove the auxiliary lead
from the self-diagnosis terminal.

NOTE

○The grounding auxiliary lead must be removed after the
self-diagnosis procedure.

Service Code Clearing Procedures

the service code erase mode with the following pro• Start
cedure.

○The erase mode starts when the ABS self-diagnosis terminal is disconnected from the frame ground after starting
the self-diagnosis mode.
○The service code can be erased by grounding (time
for at least one second) and ungrounding the ABS
self-diagnosis terminal three times or more within about
12.5 seconds after starting the erase mode and grounding it.
○The yellow ABS indicator light (LED) remains lit during the
erase mode.
○After erasing, the yellow ABS indicator light (LED) blinks
two times and lights.
○Once erasing is finished, enter the self-diagnosis mode
again to confirm that the service codes have been
erased. If the ABS has been reset and all codes have
been erased, the yellow ABS indicator light (LED) lights.

12-42 BRAKES
Anti-Lock Brake System (Equipped Models)
Erasing of Service Code

BRAKES 12-43
Anti-Lock Brake System (Equipped Models)
Self-diagnosis Flow Chart

12-44 BRAKES
Anti-Lock Brake System (Equipped Models)
How to Read Service Codes

○Service codes are shown by a series of long and short blinks of the yellow ABS indicator light (LED)
as shown below.

○Read 10th digit and unit digit as the yellow ABS indicator light (LED) blinks.
○When there are a number of faults, a maximum of all service codes can be stored.
○For the display pattern, the display will begin starting from the small number code entered, then the
display is repeated from the smallest number code once again.

○If there is no fault, the yellow ABS indicator light (LED) lights as shown.

How to Erase Service Codes

○Even if the ignition switch is turned off, the battery or the ABS hydraulic unit are disconnected, all
service codes remain in the ABS hydraulic unit.

○Refer to the Service Code Clearing Procedure for the service code erasure.

BRAKES 12-45
Anti-Lock Brake System (Equipped Models)
Service Code Table
Service
Code

Yellow ABS Indicator
Light (LED)
Stays on* (Error function
after the ignition switch
turned on)
Does not go on (When the
ignition switch turned on)

Problems

Light State

Main harness, meter unit, wheel rotation
sensor(s) or ABS hydraulic unit abnormal

ON

Main harness, meter unit or ABS hydraulic
unit abnormal

OFF

13

Rear intake solenoid valve trouble (wiring
shorted or open)

ON

14

Rear outlet solenoid valve trouble (wiring
shorted or open)

ON

17

Front intake solenoid valve trouble (wiring
shorted or open)

ON

18

Front outlet solenoid valve trouble (wiring
shorted or open)

ON

19

ABS solenoid valve relay trouble [stuck
relay (ON or OFF)]

ON

25

Front, rear wheel rotation difference
abnormal (substandard tire)

ON

35

ABS motor trouble (mechanical stuck)

ON

–
–

42

43

44

Front wheel rotation sensor signal abnormal
(sensor or rotor missing, too large
clearance, rotor tooth worn or missing)
Front or rear wheel rotation sensor wiring
(wiring shorted or open, connector bad
connection)
Rear wheel rotation sensor signal abnormal
(sensor or rotor missing, too large
clearance, rotor tooth worn or missing)

ON

ON

ON

45

Rear wheel rotation sensor wiring (wiring
shorted or open, connector bad connection)

ON

52

Power supply voltage abnormal
(low-voltage)

ON

53

Power supply voltage abnormal
(high-voltage)

ON

55

ABS Hydraulic Unit Internal Error (ECU
operation abnormal)

ON

*: In spite of the service code is not stored, the yellow ABS Indicator Light (LED) does not go off
when the 2 seconds later from the ignition switch turned on.

12-46 BRAKES
Anti-Lock Brake System (Equipped Models)
Yellow ABS Indicator Light (LED) Inspection

○In this model,

the yellow ABS indicator light (LED) [A]
goes on or blinks by the control of the ABS hydraulic unit.

Yellow ABS Indicator Light (LED) Stays ON (Error function after the ignition switch turned on - No Service
Code)
Perform the Pre-Diagnosis Inspection 1.
Check the system connectors for loose or poorly contact.
Step 1
Check the ignition fuse 15 A [A] in the fuse box (1) for
blown.
If the fuse is blown, replace the fuse.
If the fuse is not blown, go to next step.

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Step 2
Measure the battery terminal voltage using a voltmeter
[A].
○The battery voltage should be within 10  16 V.
If the voltage without specifications, recharge or replace
the battery.
If the voltage within specifications, go to next step.

•

Step 3
Disconnect the ABS hydraulic unit connector.
Check the voltage between the terminal 7 (BR/W) (+) [A]
and terminal 9 (BK) (–) [B] of the ABS hydraulic unit connector.
○The battery voltage (10  16 V) should be appeared while
the ignition switch turned on.
If the battery voltage appeared, go to step 4.
If the battery voltage does not appear, go to next step.

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•

Step 3-1
Check the voltage between the terminal 7 (BR/W) (+) [A]
of the ABS hydraulic unit connector and a frame ground
(–) [B].
○The battery voltage (10  16 V) should be appeared while
the ignition switch turned on.
If the battery voltage does not appear, repair or replace
the main harness.
If the battery voltage appeared, go to next step.

•