can NISSAN TEANA 2003 Service Manual

BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

Note 1: Confirm tire pressure is the standard value.
Note 2: Warning lamp can be used as both EBD warning lamp and brake warning.N POSI SIGShift position determined by the A/T
switch signalWhen in N position ON
Other than N position OFF
P POSI SIGShift position determined by the A/T
switch signalWhen in P position ON
Other than P position OFF
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL
RR RH IN SOL
RR RH OUT SOLOperation condition of all solenoid
valvesActuator (solenoid) is active (“ACTIVE
TEST” with CONSULT-II) and actuator
relay is active (ignition switch ON)ON
When actuator (solenoid) is not active
or actuator relay is not active (in fail-
safe mode)OFF
STOP LAMP SW2 Brake pedal operation conditionBrake pedal depressed ON
Brake pedal not depressed OFF
ACCEL POS SIGAccelerator open/close condition
(linked to the accelerator pedal)Do not step on the accelerator pedal
(When ignition switch is on)0 %
Step on the accelerator pedal
(When ignition switch is on)0 - 100 %
SIDE G SENSOR Side G detected by side G sensorWhen stopped
−1.1 to +1.1 m/s
2
Right turn Negative value
Left turn Positive value
STR ANGLE SIGSteering angle detected by steering
angle sensorStraight-ahead position -3.5° to 3.5°
Steering wheel turned right 0° to 756°
Steering wheel turned left 0° to -756°
EBD SIGNAL EBD operation conditionEBD activated ON
EBD not activated OFF
ABS SIGNAL ABS operation conditionABS activated ON
ABS not activated OFF
TCS SIGNAL TCS operation conditionTCS activated ON
TCS not activated OFF
VDC SIGNAL VDC operation conditionVDC activated ON
VDC not activated OFF
EBD FAIL SIG EBD fail-safe signal conditionIn EBD fail-safe ON
EBD is normal OFF
ABS FAIL SIG ABS fail-safe signal conditionIn ABS fail-safe ON
ABS is normal OFF
TCS FAIL SIG TCS fail-safe signal conditionIn TCS fail-safe ON
TCS is normal OFF
VDC FAIL SIG VDC fail-safe signal conditionIn VDC fail-safe ON
VDC is normal OFF
CRANKING SIG Cranking conditionAt cranking ON
Other than at cranking OFF
FLUID LEV SWBrake fluid level switch ON/OFF con-
ditionWhen brake fluid level switch is ON ON
When brake fluid level switch is OFF OFF Monitor item Display itemDATA MONITOR
ConditionReference values for
normal operation

TROUBLE DIAGNOSIS
BRC-57
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Note 3: ON/OFF timing of ABS warning lamp
ON: For a while after ignition switch is turned ON, or when a malfunction is detected.
OFF: In a while after ignition switch is turned ON (when the system is in normal operation).
Note 4: ON/OFF timing of VDC OFF indicator lamp
ON: For a while after ignition switch is turned ON, or when a malfunction is detected, or VDC OFF switch is ON.
OFF: In a while after ignition switch is turned ON (when the system is in normal operation) and VDC OFF switch is OFF.
Note 5: ON/OFF timing of SLIP indicator lamp
ON: For a while after ignition switch is turned ON, or when a malfunction is detected.
OFF: In a while after ignition switch is turned ON (when the system is in normal operation).
Blink: When the VDC/TCS function is operating during driving.
CONSULT-II FunctionsBFS000E2
CONSULT-II MAIN FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
Diagnostic test mode Function Reference
WORK SUPPORTThis mode enables a technician to adjust some devices faster and more accu-
rately by following the indications on CONSULT-II.BRC-40, "
Adjustment of
Steering Angle Sensor
Neutral Position"
SELF-DIAG RESULTS Self-diagnostic results can be read and erased quickly.BRC-58, "Self-Diagno-
sis"
DATA MONITOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.BRC-61, "Data Monitor"
CAN DIAG SUPPORT
MNTRThe results of transmit / receive diagnostic of CAN communication can be read.LAN-44, "CAN Diagnos-
tic Support Monitor"
ACTIVE TESTDiagnostic Test Mode in CONSULT-II drives some actuators apart from the ABS
actuator and electric unit (control unit) and also shifts some parameters in a
specified range.BRC-63, "Active Test"
FUNCTION TESTPerformed by CONSULT-II instead of a technician to determine whether each
system is “OK” or “NG”.—
ECU PART NUMBER ABS actuator and electric unit (control unit) part number can be read. —

BRC-58
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

Self-DiagnosisBFS000E3
DESCRIPTION

If an error is detected in the system, ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp
on the combination meter turn on. In this case, perform self-diagnosis as follows:

While CONSULT-II is used, ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may be
turned on in a case of no malfunctioning.
OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Perform CONSULT-II Starting Procedure. Refer to GI-34, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON.
4. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “ABS”, “SELF-DIAG RESULTS” in order on the
CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on the
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case, repeat
the operation from step 1. If it cannot be shown after several attempts, ABS actuator and electric
unit (control unit) may have malfunctioned.
6. The self-diagnostic results are displayed. (Touch “PRINT” to print out self-diagnostic results, if necessary.)

Check ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp if “NO FAILURE” is dis-
played.
7. Perform the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:
When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp will not turn off even when the system is
normal unless the vehicle is driving at 30 km/h (19MPH) or more for approximately 1 minute.
ERASE MEMORY
1. Turn ignition switch OFF.
2. Start engine and touch “ABS”, “SELF-DIAG RESULTS”, “ERASE MEMORY” in order on the CONSULT-II
screen to erase the DTC memory.
CAUTION:
If the error memory is not erased, re-perform the operation from step 4.
3. Perform self-diagnosis again, and make sure that diagnostic memory is erased.
4. Drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make
sure that the ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off.
CAUTION:
VDC OFF switch should not stay in the “ON” position.

TROUBLE DIAGNOSIS
BRC-59
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

DISPLAY ITEM LIST
Diagnostic item Diagnostic item is detected when... Reference
RR RH SENSOR−1
[C1101]When the circuit in the rear right wheel sensor is open.
BRC-68, "
Wheel Sensor
System"
(Note 1) RR LH SENSOR−1
[C1102]When the circuit in the rear left wheel sensor is open.
FR RH SENSOR−1
[C1103]When the circuit in the front right wheel sensor is open.
FR LH SENSOR−1
[C1104]When the circuit in the front left wheel sensor is open.
RR RH SENSOR−2
[C1105]When the circuit in the rear right wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
RR LH SENSOR−2
[C1106]When the circuit in the rear left wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
FR RH SENSOR−2
[C1107]When the circuit in the front right wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
FR LH SENSOR−2
[C1108]When the circuit in the front left wheel sensor is shorted. Or when
the sensor power voltage is outside the standard. When the dis-
tance between the wheel sensor and sensor rotor is too large and
the sensor pulse cannot be recognized by the control unit.
BATTERY VOLTAGE
[ABNORMAL]
[C1109]Battery voltage of control unit is too low.BRC-78, "
ABS Actuator
and Electric Unit (Control
Unit) Power Supply and
Ground System"
CONTROLLER FAILURE
[C1110]When there is an internal malfunction in the control unit.BRC-70, "ABS Actuator
and Electric Unit (Control
Unit) 1"
PUMP MOTOR
[ C 1111 ]This is displayed when the control unit detects a malfunction in the
motor or motor relay.BRC-74, "Pump Motor,
Motor Relay System"
G-SENSOR
[C1113]Longitudinal G-sensor is malfunctioning, or signal line of longitudi-
nal G-sensor is open or shorted.BRC-72, "Yaw Rate/Side/
Decel G Sensor System"
STOP LAMP SW
[C1116]Stop lamp switch circuit is open.BRC-77, "Stop Lamp
Switch System"

BRC-60
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

Note 1: After completing repairs of the shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Make sure
that ABS warning lamp turns off while driving the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute according to self-diag- FR LH IN ABS SOL
[C1120]This is displayed when the control unit detects a malfunction in the
front left wheel inlet solenoid circuit.
BRC-76, "
Solenoid and
VDC Change-Over Valve,
Actuator Relay System"
FR LH OUT ABS SOL
[C1121]This is displayed when the control unit detects a malfunction in the
front left wheel outlet solenoid circuit.
FR RH IN ABS SOL
[C1122]This is displayed when the control unit detects a malfunction in the
front right wheel inlet solenoid circuit.
FR RH OUT ABS SOL
[C1123]This is displayed when the control unit detects a malfunction in the
front right wheel outlet solenoid circuit.
RR LH IN ABS SOL
[C1124]This is displayed when the control unit detects a malfunction in the
rear left wheel inlet solenoid circuit.
RR LH OUT ABS SOL
[C1125]This is displayed when the control unit detects a malfunction in the
rear left wheel outlet solenoid circuit.
RR RH IN ABS SOL
[C1126]This is displayed when the control unit detects a malfunction in the
rear right wheel inlet solenoid circuit.
RR RH OUT ABS SOL
[C1127]This is displayed when the control unit detects a malfunction in the
rear right wheel outlet solenoid circuit.
CV 1
[C1164]When cut valve 1 circuit is open or shorted.
CV 2
[C1165]When cut valve 2 circuit is open or shorted.
SV 1
[C1166]When suction valve 1 circuit is open or shorted.
SV 2
[C1167]When suction valve 2 circuit is open or shorted.
ACTUATOR RLY
[C1140]This is displayed when the control unit detects a malfunction in
actuator relay circuit.
ENGINE SIGNAL 1- 6
[C1130, C1131, C1132, C1133,
C1134, C1136]When there is a malfunction in an engine system main
component.BRC-70, "
Engine Sys-
tem"
ST ANGLE SIG CIRCUIT
[C1143]When the steering angle sensor neutral position has deviated. Or
when a steering angle sensor malfunction is detected.BRC-71, "Steering Angle
Sensor System"
ST ANG SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.BRC-40, "Adjustment of
Steering Angle Sensor
Neutral Position"
YAW RATE SENSOR
[C1145]When yaw rate sensor malfunction is detected. Or when a yaw rate
sensor circuit open or short circuit is detected.
BRC-72, "
Yaw Rate/Side/
Decel G Sensor System"SIDE G-SEN CIRCUIT
[C1146]When a side G sensor malfunction is detected. Or the circuit of side
G sensor is open or shorted.
PNP POSI SIG
[C1154]TCS or ABS actuator and electric unit (control unit) internal mal-
function.BRC-75, "
Park/Neutral
Position (PNP) Switch
Circuit"
BR FLUID LEVEL LOW
[C1155]Brake fluid level drops. Or, when there is a short to ground in the
circuit between the ABS actuator and electric unit (control unit) and
the brake fluid level switch.BRC-80, "Brake Fluid
Level Switch System"
ST ANG SEN COM CIR
[C1156]CAN communication system or steering angle sensor has gener-
ated a malfunction.BRC-81, "CAN Communi-
cation System"
STOP LAMP SW2
[C1176]ASCD brake switch or circuit malfunction.EC-602, "DTC P1572
ASCD BRAKE SWITCH"
CAN COMM CIRCUIT
[U1000]When there is a malfunction in the CAN communication system.BRC-81, "CAN Communi-
cation System"
(Note 2) Diagnostic item Diagnostic item is detected when... Reference

TROUBLE DIAGNOSIS
BRC-61
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

nosis procedure. In addition, if wheel sensor 2 is displayed for the wheels, check the wheel sensor circuit and also check the control unit
power voltage.
Note 2: When malfunctions are detected in several systems, including the CAN communication system [U1000], perform trouble diagno-
sis on the CAN communication system.
Data MonitorBFS000E4
OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-34, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON.
4. At the monitor item selection screen, touch one of the items “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”.
5. Touch “START” to proceed to the data monitor screen.
DISPLAY ITEM LIST
Item (Unit)Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN SIGNALSSELECTION
FROM MENU
FR LH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by front left
wheel sensor signal is displayed.
FR RH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by front right
wheel sensor signal is displayed.
RR LH SENSOR
[km/h (MPH)]×××Condition of wheel speed calculated by rear left wheel
sensor signal is displayed.
RR RH SENSOR
[km/h (MPH)]×××Condition of wheel sensor calculated by rear right
wheel sensor signal is displayed.
DECEL G SEN
(G)×××Condition of decel G detected by the decel G sensor
is displayed.
FR LH IN SOL
(ON/OFF)—××Condition of front left wheel ABS inlet solenoid valve
(ON/OFF) is displayed.
FR LH OUT SOL
(ON/OFF)—××Condition of front left wheel ABS outlet solenoid valve
(ON/OFF) is displayed.
RR RH IN SOL
(ON/OFF)—××Condition of rear right wheel ABS inlet solenoid valve
(ON/OFF) is displayed.
RR RH OUT SOL
(ON/OFF)—××Condition of rear right wheel ABS outlet solenoid
valve (ON/OFF) is displayed.
FR RH IN SOL
(ON/OFF)—××Condition of front right wheel ABS inlet solenoid valve
(ON/OFF) is displayed.
FR RH OUT SOL
(ON/OFF)—××Condition of front right wheel ABS outlet solenoid
valve (ON/OFF) is displayed.
RR LH IN SOL
(ON/OFF)—××Condition of rear left wheel ABS inlet solenoid valve
(ON/OFF) is displayed.
RR LH OUT SOL
(ON/OFF)—××Condition of rear left wheel ABS outlet solenoid valve
(ON/OFF) is displayed.
EBD WARN LAMP
(ON/OFF) (Note)——×Condition of brake warning lamp (ON/OFF) is dis-
played.
STOP LAMP SW
(ON/OFF)×××Condition of stop lamp switch (ON/OFF) is displayed.
MOTOR RELAY
(ON/OFF)—××Condition of ABS motor relay (ON/OFF) is displayed.
ACTUATOR RLY
(ON/OFF)—××Condition of ABS actuator relay (ON/OFF) is dis-
played.
ABS WARN LAMP
(ON/OFF)—××Condition of ABS warning lamp (ON/OFF) is dis-
played.

BRC-62
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

OFF LAMP
(ON/OFF)—××Condition of VDC OFF indicator lamp (ON/OFF) is dis-
played.
OFF SW
(ON/OFF)×××Condition of VDC OFF switch (ON/OFF) is displayed.
SLIP LAMP
(ON/OFF)—××Condition of SLIP indicator lamp (ON/OFF) is dis-
played.
BATTERY VOLT
(V)×××Condition of the voltage supplied to the VDC/TCS/
ABS control unit is displayed.
GEAR×××The gear position determined from the PNP switch
signal is displayed.
YAW RATE SEN
(d/s)×××Yaw rate detected by yaw rate sensor is displayed.
STOP LAMP SW2
(ON/OFF)——×Condition of brake switch (ON/OFF) is displayed.
ACCEL POS SIG
(%)×—×The accelerator openness condition determined from
the CAN communication signal is displayed.
N POSI SIG
(ON/OFF)——×Shift position determined by the A/T PNP switch sig-
nal.
P POSI SIG
(ON/OFF)——×Shift position determined by the A/T PNP switch sig-
nal.
CV 1
(ON/OFF)——×Cut valve 1 operation condition.
CV 2
(ON/OFF)——×Cut valve 2 operation condition.
SV 1
(ON/OFF)——×Suction valve 1 operation condition.
SV 2
(ON/OFF)——×Suction valve 2 operation condition.
SIDE G SEN
(m/s
2 )×— — Side G detected by side G sensor is displayed.
STR ANGLE SIG
(°)×—×The steering angle detected by the steering angle
sensor is displayed.
ENGINE SPEED
(rpm)×××Engine speed judged by CAN communication signal is
displayed.
EBD SIGNAL
(ON/OFF)——×Condition of EBD operation (ON/OFF) is displayed.
ABS SIGNAL
(ON/OFF)——×Condition of ABS operation (ON/OFF) is displayed.
TCS SIGNAL
(ON/OFF)——×Condition of TCS operation (ON/OFF) is displayed.
VDC SIGNAL
(ON/OFF)——×Condition of VDC operation (ON/OFF) is displayed.
EBD FAIL SIG
(ON/OFF)——×Condition of EBD fail-safe signal (ON/OFF) is dis-
played.
ABS FAIL SIG
(ON/OFF)——×Condition of ABS fail-safe signal (ON/OFF) is dis-
played.
TCS FAIL SIG
(ON/OFF)——×Condition of TCS fail-safe signal (ON/OFF) is dis-
played.
VDC FAIL SIG
(ON/OFF)——×Condition of VDC fail-safe signal (ON/OFF) is dis-
played. Item (Unit)Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN SIGNALSSELECTION
FROM MENU

TROUBLE DIAGNOSIS
BRC-63
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

×: Applicable
−: Not applicable
Note: Brake warning lamp can be used for EBD warning lamp.
Active TestBFS000E5
CAUTION:

Do not perform active test while driving vehicle.

Make sure to completely bleed air from brake system.

Active test cannot be performed while ABS warning lamp is turned on due to the ABS malfunction-
ing.

ABS and brake warning lamps are on during active test.
OPERATION PROCEDURE
1. Preform “CONSULT-II Starting Procedure”. Refer to GI-34, "CONSULT-II Start Procedure" .
2. Touch “ACTIVE TEST” in order on the CONSULT-II screen.
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in the system selection screen. In this case, repeat
the operation from step 1.
3. The “SELECT TEST ITEM” is displayed.
4. Touch necessary test item.
5. While “MAIN SIGNALS” indication is inverted, touch “START”.
6. “ACTIVE TEST” screen will be displayed, so perform the following test.

Solenoid valve

ABS motor
NOTE:

When active test is performed while depressing the pedal, the pedal depression amount will change.
This is normal.

“TEST IS STOPPED” is displayed 10 seconds after operation start.

After “TEST IS STOPPED” is displayed, to perform test again, touch “BACK” and repeat step 3.
CRANKING SIG
(ON/OFF)——×Condition of key switch start position signal input is
displayed.
FLUID LEV SW
(ON/OFF)×—×Condition of brake fluid level sensor (ON/OFF) is dis-
played. Item (Unit)Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN SIGNALSSELECTION
FROM MENU
PFIA0301E

TROUBLE DIAGNOSIS
BRC-65
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

For Fast and Accurate DiagnosisBFS000E6
PRECAUTIONS FOR DIAGNOSIS

Be sure to check the procedures of “How to Perform Trouble Diagnosis” in advance. Refer to GI-4, "Gen-
eral Precautions" .

Always adjust the neutral position of steering angle sensor before driving when removing and installing
ABS actuator and electric unit (control unit), steering angle sensor, suspension parts and adjusting align-
ment. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .

Always erase memory after completing trouble diagnosis. Refer to BRC-58, "ERASE MEMORY" .

When inspection of the continuity or voltage between modules or units is performed, check connector ter-
minals for disconnection, looseness, bend, or collapse. Repair or replace applicable part if any non-stan-
dard condition is detected.

Intermittent malfunctions may be caused by a poor connection in the harness, connectors, and terminals.
Move harnesses, harness connectors, and terminals by hand to make sure all connections are solid and
undamaged.

Do not to forcibly extend any connector terminal if a circuit tester is used for the check.

The symptom shown in the table may occur, but the system is operating normally.
Symptom Symptom description Result
Motor operation soundThis is the operation sound of the motor in the actuator and electric unit.Slight
sound may occur during VDC, TCS and ABS operation.
Normal
Just after the engine starts, the motor operating noise may be heard. This is a
normal status of the system operation check.
System operation check soundWhen engine starts, “click” sound may be heard from engine room. This is nor-
mal status of system operation check.Normal
VDC/TCS operation
(SLIP indicator lamp ON)TCS may activate momentarily if wheel speed changes when driving over
location where friction coefficient varies, when downshifting, or when fully
depressing accelerator pedal.
Normal
Cancel the VDC/
TCS function for
the inspection on
a chassis dyna-
mometer. Before the speed meter inspection, push VDC OFF switch to cancel the VDC/
TCS function.
When accelerator pedal is depressed on a chassis dynamometer (front wheel
fixing type), the vehicle speed will not increase. This is normal. It is result of
TCS being activated by stationary front wheels. The warning lamp may also
turn on to show “sensor system malfunction” in this case. This is also normal,
and is the result of the stationary front wheels being detected. Restart engine,
and drive the vehicle at 30 km/h (19 MPH) or more to make sure that the warn-
ing lamp no longer turns on.
ABS operation
(Longer stopping distance)When driving on roads with a low coefficient of friction, such as snowy roads or
gravel roads, the stopping distance is sometimes longer for vehicles equipped
with ABS. Therefore, when driving on such roads, drive at a sufficiently
reduced speed to be safe.Normal
Sluggish feelDepending on road conditions, the driver may have a sluggish feel. This is
because traction control, which controls engine and brakes to achieve optimal
traction, has the highest priority (for safety). As a result sometimes the driver
has a less slight sluggish feel in response than usual acceleration feel.Normal

BRC-66
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

Basic InspectionBFS000E7
BRAKE FLUID LEVEL, LEAKAGE AND BRAKE PAD
1. Check fluid level in the brake fluid reservoir tank. Refill the brake fluid if fluid level is low.
2. Check the area around the brake piping and actuator for leakage. If leakage or oozing is detected, check
as follows:

If ABS actuator and electric unit (control unit) connections are loose, tighten connections to the speci-
fied torque. Check again for leakage, and make sure that there is no fluid leakage.

If the flare nuts at the connections and the threads of the actuator are damaged, replace the damaged
parts. Then check again for leakage, and make sure that there is no fluid leak.

If leakage or oozing is detected on parts other than actuator connections, wipe with a clean cloth and
check again. If there is still leakage or oozing, replace the damaged part.

If leakage or oozing is detected on actuator body, wipe with a clean cloth and check again. If there is
still leakage or oozing, replace ABS actuator and electric unit (control unit).
CAUTION:
ABS actuator and electric unit (control unit) cannot be disassembled.
3. Check brake pad for wear. Refer to BR-26, "
PAD WEAR INSPECTION" , “FRONT DISC BRAKE”, BR-33,
"PAD WEAR INSPECTION" , “REAR DISC BRAKE”.
POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery for looseness on the battery positive/negative terminal and ground connection. Also make sure
that battery voltage does not drop.
INSPECTION OF ABS WARNING LAMP, BRAKE WARNING LAMP, VDC OFF INDICATOR LAMP,
AND SLIP INDICATOR LAMP
×: ON –: OFF
Note 1: Turns off after engine start
Note 2: The brake warning lamp turns on during parking brake operation (when switch is on) and brake fluid level sensor operation
(insufficient brake fluid).
1. Make sure that when the ignition switch is turned ON, the ABS warning lamp, VDC OFF indicator lamp
(when VDC OFF switch is off), and SLIP indicator lamp turn on for approximately 1 second, and that the
brake warning lamp turns on. If they do not turn on, perform CAN communication system diagnosis. Refer
to BRC-81, "
CAN Communication System" . Be sure to check VDC OFF switch before checking VDC OFF
indicator lamp. Refer to BRC-81, "
VDC OFF SWITCH" . Check combination meter if there is no malfunc-
tion in CAN communication system and VDC OFF switch. Refer to DI-4, "
COMBINATION METERS" .
2. Check if the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off approximately
1 second after the ignition switch is turned ON, and if the brake warning lamp turns off after the engine is
started. If they do not turn off, perform self-diagnosis.
ConditionABS warning
lampBrake warning
lamp (Note 2)VDC OFF indica-
tor lampSLIP indicator
lampRemarks
Ignition switch OFF ———— —
For a while after ignition
switch is turned ON×× (Note 1)××—
In a while after ignition
switch is turned ON
(System normal)—× (Note 1) — —Turns OFF 2 seconds
after ignition switch is
turned ON.
When the VDC OFF
switch is turned ON.
(VDC function OFF)——×——
VDC/TCS/ABS error×—××When there is an
ABS actuator and
electric unit (control
unit) error (power
ground or system
malfunction).
When VDC/TCS is not func-
tioning normally.——××—
EBD error××××—