BR-8
< ON-VEHICLE MAINTENANCE >
BRAKE FLUID
BRAKE FLUID
On Board InspectionINFOID:0000000001716919
CHECKING BRAKE FLUID LEVEL
Make sure the fluid level in the reservoir tank is within the standard
(between MAX and MIN lines).
Visually check around the reservoir tank for fluid leakage.
If fluid level is excessively low, check brake system for fluid leak-
age.
Release parking brake lever and see if brake warning lamp goes
off. If not, check brake system for fluid leakage.
Drain and RefillINFOID:0000000001716920
CAUTION:
Refill using recommended brake fluid. Refer to MA-19, "
Fluids and Lubricants".
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, immediately wipe them with cloth and wash it away with water.
Before working, disconnect connectors of ABS actuator and electric unit (control unit) or battery
cable from the negative terminal.
1. Connect a vinyl tube to bleed valve.
2. Depress the brake pedal, loosen the bleed valve, and gradually
remove the brake fluid.
3. Clean inside of reservoir tank, and refill with new brake fluid.
4. Loosen bleed valve, depress brake pedal slowly to full stroke
and then release it. Repeat the procedure every 2 or 3 seconds
until the new brake fluid comes out, then close the bleed valve
while depressing the brake pedal. Repeat the same procedure
for each wheel.
5. Bleed air. Refer to BR-8, "
Bleeding Brake System" .
Bleeding Brake SystemINFOID:0000000001716921
CAUTION:
While bleeding, pay attention to master cylinder fluid level.
Before working, disconnect connectors of ABS actuator and electric unit (control unit) or the battery
cable from the negative terminal.
1. Connect a vinyl tube to the rear right bleed valve.
2. Fully depress brake pedal 4 to 5 times.
SFIA3067E
WFIA0512E
WFIA0513E
BR-18
< ON-VEHICLE REPAIR >
BRAKE MASTER CYLINDER
BRAKE MASTER CYLINDER
On-Board InspectionINFOID:0000000001716996
LEAK INSPECTION
Check for leaking in a master cylinder installation surface, a reservoir tank installation surface, and brake
tube connections.
Removal and InstallationINFOID:0000000001716997
CAUTION:
Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, immediately wipe them with cloth and wash it away with water.
REMOVAL
1. Drain brake fluid. Refer to BR-8, "Drain and Refill" .
2. Remove battery. Refer to PG-6, "
Removal and Installation" .
3. Remove air duct and air cleaner. Refer to EM-27, "
Removal and Installation" (HR16DE), EM-154,
"Removal and Installation" (MR18DE), EM-269, "Removal and Installation" (K9K).
4. Disconnect brake fluid level switch harness connector.
5. Using a flare nut wrench, remove brake tube from master cylinder.
6. Remove master cylinder assembly nuts, and remove master cylinder assembly from vehicle..
INSTALLATION
CAUTION:
Refill using recommended brake fluid. Refer to MA-19, "
Fluids and Lubricants".
Never reuse drained brake fluid.
Check if the rod of primary piston has dust or scratches.
1. Install master cylinder to brake booster assembly, and tighten nuts to the specified torque. Refer to BR-19,
"Removal and Installation".
CAUTION:
Do not damage or strain rod of primary piston.
Apply silicone grease for O-ring, primary piston rod and
to inside of booster.
2. Install brake tube to master cylinder, and temporarily tighten the flare nuts on the brake tube to master cyl-
inder by hand.
3. Install brake tube to brake hose, then tighten flare nut to the specified torque using a flare nut torque
wrench. Refer to BR-14, "
Hydraulic Circuit" .
4. Connect brake fluid level switch harness connector.
5. Refill new brake fluid and bleed air. Refer toBR-8, "
Bleeding Brake System" .
SFIA2614E
BRC-26
< FUNCTION DIAGNOSIS >[ABS]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
RR LH SENSOR
(km/h, MPH)×××Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V)×××Voltage supplied to ABS actuator
and electric unit (control unit) is dis-
played.
N POSI SIG – –×Shift position judged by PNP switch
signal.
P POSI SIG – –×Shift position judged by PNP switch
signal.
ACCEL POS SIG
(%)×–×Throttle valve open/close status
judged by CAN communication sig-
nal is displayed.
ENGINE SPEED
(rpm)×××Engine speed judged by CAN com-
munication signal is displayed.
STR ANGLE SIG
(deg)×–×Steering angle detected by steering
angle sensor is displayed.
YAW RATE SEN
(d/s)×××Yaw rate detected by yaw rate sen-
sor is displayed.
SIDE G-SENSOR
(m/s
2)×– ×Transverse acceleration detected
by side G-sensor is displayed.
STOP LAMP SW
(ON/OFF)×××Stop lamp switch (ON/OFF) status
is displayed.
OFF SW
(ON/OFF) ×× ×VDC OFF switch (ON/OFF) status
is displayed.
ABS WARN LAMP
(ON/OFF)–××ABS warning lamp (ON/OFF) status
is displayed.
SLIP LAMP
(ON/OFF)–××SLIP indicator lamp (ON/OFF) sta-
tus is displayed.
FR LH IN SOL
(ON/OFF)–××Front LH IN ABS solenoid (ON/
OFF) status is displayed.
FR LH OUT SOL
(ON/OFF)–××Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
RR RH IN SOL
(ON/OFF)–××Rear RH IN ABS solenoid (ON/
OFF) status is displayed.
RR RH OUT SOL
(ON/OFF) –××Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF)–××Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF)–××Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF)–××Rear LH IN ABS solenoid (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF)–××Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
OFF LAMP
(ON/OFF)–××OFF Lamp (ON/OFF) status is dis-
played.
MOTOR RELAY
(ON/OFF)–××ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF)– ××ABS actuator relay signal (ON/OFF)
status is displayed. Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALS
MAIN
SIGNALSSELECTION
FROM MENU
BRC-30
< COMPONENT DIAGNOSIS >[ABS]
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
COMPONENT DIAGNOSIS
C1101, C1102, C1103, C1104 WHEEL SENSOR-1
DescriptionINFOID:0000000001731225
When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current
signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731226
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-30, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731227
CAUTION:
Do not check between wheel sensor terminals.
INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E125 and wheel sensor of malfunction-
ing code.
Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair or replace as necessary.
2.CHECK WHEEL SENSOR OUTPUT SIGNAL
1. Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
2. Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
DTC Display item Malfunction detected condition Possible cause
C1101 RR RH SENSOR-1Circuit of rear RH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
Harness or connector
Wheel sensor
ABS actuator and electric unit
(control unit) C1102 RR LH SENSOR-1Circuit of rear LH wheel sensor is open. Or when the sen-
sor power voltage is outside the standard.
C1103 FR RH SENSOR-1Circuit of front RH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
C1104 FR LH SENSOR-1Circuit of front LH wheel sensor is open. Or when the
sensor power voltage is outside the standard.
Self-diagnosis results
RR RH SENSOR-1
RR LH SENSOR-1
FR RH SENSOR-1
FR LH SENSOR-1
BRC-34
< COMPONENT DIAGNOSIS >[ABS]
C1105, C1106, C1107, C1108 WHEEL SENSOR-2
2.CHECK WHEEL SENSOR OUTPUT SIGNAL
1. Connect ABS active wheel sensor tester (J-45741) to wheel sensor using appropriate adapter.
2. Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
3. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and
retest.
Does the ABS active wheel sensor tester detect a signal?
YES >> GO TO 3
NO >> Replace the wheel sensor. Refer to BRC-83, "
Removal and Installation".
3.CHECK TIRES
Check for inflation pressure, wear and size of each tire.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4
NO >> Adjust tire pressure or replace tire(s).
4.CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FAX-5, "
On-Vehicle Inspection and Service" (front) or RAX-5,
"On-Vehicle Inspection and Service" (rear).
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace as necessary. Refer to FA X - 7 , "
Removal and Installation" (front) or RAX-6,
"Removal and Installation" (rear).
5.CHECK WIRING HARNESS FOR SHORT CIRCUIT
1. Disconnect ABS actuator and electric unit (control unit) connec-
tor and wheel sensor connector of malfunction code No.
2. Check continuity between wheel sensor harness connector ter-
minals and ground.
Is the inspection result normal?
YES >> GO TO 6
NO >> Repair the circuit.
6.CHECK WIRING HARNESS FOR OPEN CIRCUIT
1. Check continuity between ABS actuator and electric unit (control unit) harness connector E125 and the
malfunctioning wheel sensor harness connector E18, E117, C10, or C11. Continuity should not exist.
WFIA0343E
BRC-36
< COMPONENT DIAGNOSIS >[ABS]
C1109 POWER AND GROUND SYSTEM
C1109 POWER AND GROUND SYSTEM
DescriptionINFOID:0000000001731235
Supplies electric power to the ABS actuator and electric unit (control unit).
DTC LogicINFOID:0000000001731236
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> Proceed to diagnosis procedure. Refer to BRC-36, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001731237
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or
replace terminal.
4. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-25, "
CONSULT-III Function
(ABS)".
Is any item indicated on the self-diagnosis display?
YES >> GO TO 2
NO >> Poor connection of connector terminal. Repair or replace connector.
2.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) POWER SUPPLY CIRCUIT AND
GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connector.
3. Turn ignition switch ON or OFF and check voltage between ABS
actuator and electric unit (control unit) harness connector termi-
nal and ground.
4. Turn ignition switch OFF.
DTC Display item Malfunction detected condition Possible cause
C1109BATTERY VOLTAGE
[ABNORMAL]When the ABS actuator and electric unit (control unit)
power supply voltage is lower than normal. Harness or connector
ABS actuator and electric unit
(control unit)
Self-diagnosis results
BATTERY VOLTAGE [ABNORMAL]
ABS actuator and elec-
tric unit (control unit)
— Condition Voltage
Connector Terminal
E125 4 GroundIgnition switch: ON Battery voltage
Ignition switch: OFF Approx. 0V
AWFIA0015ZZ
C1109 POWER AND GROUND SYSTEM
BRC-37
< COMPONENT DIAGNOSIS >[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
N
O
P
5. Check continuity between ABS actuator and electric unit (control
unit) harness connector terminals and ground.
Is the inspection result normal?
YES >> Check battery for terminal looseness, low voltage, etc. If any malfunction is found, repair malfunc-
tioning parts.
NO >> Repair or replace malfunctioning components.
Special Repair RequirementINFOID:0000000001731238
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END
ABS actuator and electric unit
(control unit)
—Continuity
Connector Terminal
E125 16, 47 Ground Yes
AWFIA0016ZZ
BRC-40
< COMPONENT DIAGNOSIS >[ABS]
C1111 ABS MOTOR, MOTOR RELAY SYSTEM
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec-
tor.
3. Check voltage between the ABS actuator and electric unit (con-
trol unit) harness connector terminal and ground.
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace malfunctioning components.
3.CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check continuity between ABS actuator and electric unit (control
unit) harness connector terminals and ground.
Is the inspection result normal?
YES >> Replace ABS actuator and electric unit (control unit).
Refer to BRC-85, "
Removal and Installation".
NO >> Repair or replace malfunctioning components.
Component InspectionINFOID:0000000001731245
1.CHECK ACTIVE TEST
1. On “ACTIVE TEST”, select “ABS MOTOR”.
2. Touch ON and OFF on screen. Make sure motor relay and actuator relay operates as shown in table
below.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to diagnosis procedure. Refer to BRC-39, "
Diagnosis Procedure".
Special Repair RequirementINFOID:0000000001731246
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator
and electric unit (control unit). Refer to BRC-90, "
ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Description".
>> GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit).
Refer to BRC-91, "
CALIBRATION OF DECEL G SENSOR : Description".
>> END
ABS actuator and electric unit (control unit)
—Voltage
Connector Terminal
E125 1 Ground Battery voltage
AWFIA0017ZZ
ABS actuator and electric unit (control unit)
— Continuity
Connector Terminal
E125 16, 47 Ground Yes
AWFIA0016ZZ
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON