2001 TOYOTA HIGHLANDER brake sensor

2005 HIGHLANDER (EWD592U)
42
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 10 A/C Control Assembly
A 11 A/C Control Assembly
A 12 A/C Solar Sensor
A 13 Air Inlet Control Servo Motor
A 14 Air Mix Control Servo Motor
A 15 Air Vent Mode Control Servo Motor
A 16 Airbag Sensor Assembly
A 17 Airbag Sensor Assembly
A 18 Airbag Sensor Assembly
A 19 Airbag Squib (Front Passenger Airbag Assembly)
A 20 Airbag Squib (Steering Wheel Pad)
A 21 Antenna Amplifier (Front)
A 22 Ashtray Illumination
A 23 Automatic Light Control Sensor
A 27 Accel Position Sensor
B 5 Blower Control SW
B 6 Blower Motor
B 7 Blower Motor Control
B 8 Blower Resister
B 9 Body ECU
B 10 Body ECU
B 11 Body ECU
B 12 Body ECU
B 13 Brake Pedal Load Sensing SWC 9 Cigarette Lighter
C 10 Cigarette Lighter Illumination
C 11 Combination Meter
C 12 Combination Meter
C 13 Combination SW
C 14 Combination SW
C 16 Combination SW
D 2 Diode (Cooling Fan)
D 3 Data Link Connector 3
D 16 Diode (Rear Wiper)
E 4 Electronically Controlled Transmission Pattern
Select SW
E 5 Engine Control Module
E 6 Engine Control Module
E 7 Engine Control Module
E 8 Engine Control Module
E 9 Engine Control Module
E 12 Evaporator Temp. Sensor

2005 HIGHLANDER (EWD592U)
43
G
Position of Parts in Instrument Panel
F 8 Front Power Outlet
G 4 Glove Box Light
G 5 Gateway ECU
H 9 Heater Relay
H 10 Heated Oxygen Sensor (Bank 1 Sensor 2)
I 14 Ignition Key Cylinder Illumination
I 15 Ignition SW
J 5 Junction Connector
J 6 Junction Connector
J 7 Junction Connector
J 16 Junction Connector
J 17 Junction Connector
J 20 Junction Connector
K 4 Key Interlock Solenoid
Unlock Warning SW
M 2 Main SW
M 3 Multi-Display
M 4 Multi-Display
M 5 Multi-Display
N 3 Navigation ECU
N 4 Navigation ECU
O 3 Option Connector 1
O 4 Option Connector 2P 3 Parking Brake SW
P 22 Pressure SW
R 2 Radio and Player
R 3 Radio and Player
R 4 Radio and Player
R 5 Remote Control Mirror SW
R 6 Room Temp. Sensor
R 22 Radio and Player
R 23 Radio and Player
R 24 Rear Heater Main SW
S 3 Seat Heater SW LH
S 4 Seat Heater SW RH
S 5 Shift Lock ECU
S 14 Steering Sensor
S 15 Stop Light SW
S 28 Short Connector
S 29 Short Connector
S 30 Short Connector
S 31 Short Connector
T 4 Theft Deterrent ECU
T 5 Theft Deterrent Indicator Light
T 6 TRAC Off SW
T 7 Transponder Key Amplifier
T 8 Turn Signal Flasher
T 14 Transponder Key Computer
T 15 Telltale Light Assembly
T 16 Indicator Light Wire Sub Assembly
Transmission Control SW
Transmission Shift Main SW
V 8 VSC Warning Buzzer

BR3890
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-767
957 Author
: Date
:
(b) Clear DTCs.
(1) Using SST, connect terminals Tc and CG of the
DLC3.
SST 09843-18040
(2) Turn the ignition switch to the ON position.
(3) Clear the DTCs stored in the ECU by depressing the
brake pedal 8 or more times within 5 sec.
(4) Check that the ABS warning light and VSC warning
light shows normal blinking patterns.
(5) Remove the SST from the DLC3.
SST 09843-18040
HINT:
Cancellation cannot be preformed by removing the battery
cable or the ECU-IG fuse.
3. DTC CHECK/CLEAR (USING HAND-HELD TESTER)
(a) Check DTCs.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Read the DTCs following the prompts on the tester
screen.
HINT:
Refer to the hand-held tester operator's manual for further de-
tails.
(b) Clear the DTCs.
(1) Connect the hand-held tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Operate the hand-held tester to erase the codes.
HINT:
Refer to the hand-held tester operator's manual for further de-
tails.
4. DATA LIST
HINT:
According to the DATA LIST displayed on the Hand-held tester, you can read the value and status of the
switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of trouble-
shooting is one of the methods to shorten the labor time.
(a) Connect the Hand-held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) From the display on the tester, read the ºDATA LISTº.
*: 2WD only
ItemMeasurement Item /
Range (Display)Normal ConditionDiagnostic Note
ABS MOT RELAYABS motor relay / ON or
OFFON : Motor relay ON-
SOL RELAYSolenoid relay / ON or
OFFON : Solenoid relay ON-
VSC / TRC OFF SW*TRAC control switch / ON
or OFFON : TRAC control switch ON-
IDLE SWMain idle switch / ON or
OFF
ON : Accelerator pedal re-
leased
OFF : Accelerator pedal
depressed
-

05-768
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
958 Author
: Date
: ItemDiagnostic Note Normal Condition Measurement Item /
Range (Display)
STOP LIGHT SWStop lamp switch / ON or
OFF
ON : Brake pedal de-
pressed
OFF : Brake pedal re-
leased
-
PKB SWParking brake switch / ON
or OFFON : Parking brake applied
OFF : Parking brake re-
leased
-
STEP FORCE SWBrake load sensing switch
/ ON or OFF
ON : Depressed brake
pedal
OFF : Released brake
pedal
-
ABS OPERT FRABS operation (FR) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (FR)
OPERATE : During ABS
operation (FR)
-
ABS OPERT FLABS operation (FL) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (FL)
OPERATE : During ABS
operation (FL)
-
ABS OPERT RRABS operation (RR) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (RR)
OPERATE : During ABS
operation (RR)
-
ABS OPERT RLABS operation (RL) / BE-
FORE or OPERATE
BEFORE : No ABS opera-
tion (RL)
OPERATE : During ABS
operation (RL)
-
WHEEL SPD FR
Wheel speed sensor (FR)
reading / min.: 0 km/h (0
MPH, max.: 326 km/h (202
MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD FL
Wheel speed sensor (FL)
reading / min.: 0 km/h (0
MPH, max.: 326 km/h (202
MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD RR
Wheel speed sensor (RR)
reading / min.: 0 km/h (0
MPH, max.: 326 km/h (202
MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
WHEEL SPD RL
Wheel speed sensor (RL)
reading / min.: 0 km/h (0
MPH, max.: 326 km/h (202
MPH)
Actual wheel speedSimilar speed as indicated
on speedometer
DECELERAT SENS
Deceleration sensor 1
reading / min.: -1.869 G,
max.: 1.869 GApproximately 0 ± 0.13G
at still conditionReading changes when ve-
hicle is bounced
DECELERAT SENS2
Deceleration sensor 2
reading / min.: -1.869 G,
max.: 1.869 GApproximately 0 ± 0.13G
at still conditionReading changes when ve-
hicle is bounced
IG VOLTAGEECU power supply voltage
/ TOO LOW / NORMALNORMAL: 9.5 V or over
TOO LOW: Below 9.5 V-
SFRRABS solenoid (SFRR) / ON
or OFFON : Operate-
SFRHABS solenoid (SFRH) / ON
or OFFON : Operate-
SFLRABS solenoid (SFLR) / ON
or OFFON : Operate-

- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
05-769
959 Author
: Date
: ItemDiagnostic Note Normal Condition Measurement Item /
Range (Display)
SFLHABS solenoid (SFLH) / ON
or OFFON : Operate-
SRRR (SRR)ABS solenoid (SRRR
(SRR)) / ON or OFFON : Operate-
SRRH (SRH)ABS solenoid (SRRH
(SRH)) / ON or OFFON : Operate-
SRLRABS solenoid (SRLR) / ON
or OFFON : Operate-
SRLHABS solenoid (SRLH) / ON
or OFFON : Operate-
SMF (BA-SOL)TRAC solenoid (SMF) /
ON or OFFON : Operate-
SMRTRAC solenoid (SMR) /
ON or OFFON : Operate-
THROTTLEThrottle position sensor/
Min.: 0 deg, Max.: 125 deg
Release accelerator pedal:
Approx. 0 deg.
Depress accelerator pedal:
Approx. 90 deg.
-
ENGINE SPD
Engine Speed/
Min.: 0 rpm, Max.: 6,000
rpm
Actual engine speed-
VEHICLE SPD
Maximum wheel speed
sensor reading / min.: 0
km/h (0 MPH), max.: 326
km/h (202 MPH)
Actual vehicle speedSimilar speed as indicated
on speedometer
YAW RATE
Yaw rate sensor/
Min.: -128 deg/s, Max.:
128 deg/sMin.: -128 deg/s
Max.: 128 deg/s-
YAW ZERO VALUE
Memorized zero value/
Min.: -128 deg/s, Max.:
128 deg/sMin.: -128 deg/s
Max.: 128 deg/s-
STEERING ANG
Steering sensor/
Min.: -1152 deg,
Max.: 1150.875 degLeft turn: Increase
Right turn: Decrease-
MAS CYL PRS 1
Master cylinder pressure
sensor 1 reading / min.: 0
V, max.: 5 VWhen brake pedal is re-
leased : 0.3 to 0.9 VReading increases when
brake pedal is depressed
TEST MODETest mode / NORMAL or
TESTNORMAL : Normal mode
TEST : During test mode-
#CODESNumber of DTC recorded /
min.: 0, max.: 255Min.: 0, max.: 39-

- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
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: Date
: ItemDiagnostic Note Vehicle Condition / Test Details
BRAKE WRN LIGHTTurns BRAKE warning light ON / OFFObserve combination me-
ter
VSC / BR WARN BUZTurns VSC / BRAKE warning buzzer ON / OFFBuzzer can be heard
*: 2WD only
6. FREEZE FRAME DATA
HINT:

Whenever a DTC is detected or the ABS operates, the skid control ECU stores the current vehicle (sen-
sor) state as freeze frame data.

The skid control ECU stores the number of times (maximum: 31) the ignition switch has been turned
from off to the On position since the last time ABS was activated. However, if the vehicle was stopped
or at low speed (4.3 mph (7 km/h) or less), or if a DTC is detected, the skid control ECU will not count
the number since then.

Freeze frame data at the time the ABS operates:
The skid control ECU stores and updates data whenever the ABS system operates.
When the ECU stores data at the time a DTC is detected, the data stored when the ABS operated is
erased.

Freeze frame data at the time a DTC is detected:
When the skid control ECU stores data at the time a DTC is detected, no updates will be performed
until the data is cleared.
(a) Connect the Hand-held tester to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) From the display on the tester, select the ºFREEZE FRAME DATAº.
Hand-held tester displayMeasurement ItemReference Value
VEHICLE SPDWheel speed sensor readingSpeed indicated on speedometer
STOP LIGHT SWStop lamp switch signalStop lamp switch ON: ON, OFF: OFF
# IG ONNumber of operations of ignition switch ON after
memorizing freeze frame data0 to 31
MAS CYL PRESSMaster cylinder pressure sensor readingBrake pedal release : 0.3 to 0.9 V
Brake pedal depress: 0.8 to 4.5 V
MASS PRESS GRADEMaster cylinder pressure sensor change-30 to 200 MPa/s
SYSTEMSystem status
ABS activated: ABS
VSC/TRC activated: VSC/TRC
BA activated: BA
Fail safe mode activated: FAIL SF
No system activated: NO SYS
YAW R AT EYaw rate angle sensor reading-100 to 100
STEERING ANGSteering sensor readingLeft turn: Increase
Right turn: Decrease
G (RIGHT & LEFT)Right and left G-1.869 to 1.869
G (BACK & FORTH)Back and forth G-1.869 to 1.869
VSC (TRC) OFF SW*TRAC control switch signalTRC control switch ON: ON
OFF: OFF
SHIFT POSITIONShift lever position
FAIL
P, N
R
D
4
3
2
L
THROTTLEThrottle sensor reading0 to 125 deg.
*: 2WD only

C52361
DLC3
Ts
CG
BR3904
0.13 sec. 0.13 sec.
ON
OFF 05-772
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
962 Author
: Date
:
7. SENSOR SIGNAL CHECK (TEST MODE)
(USING SST CHECK WIRE)
NOTICE:
After replacing the yaw rate sensor (deceleration sensor)
and/or brake actuator assembly (skid control ECU), per-
form zero point calibration of the yaw rate sensor and de-
celeration sensor. (See step 9.)
HINT:

If the ignition switch is turned from ON to the ACC or
LOCK position during test mode, DTC of sensor check
function will be erased.

During test mode, ECU records all DTCs of sensor check
functions. By preforming sensor signal check, the codes
are erased if normality is confirmed. The codes left over
are the codes where an abnormality was found.
(a) Procedures for test mode:
(1) Turn the ignition switch off.
(2) Check that the steering wheel is in the straight-
ahead position and shift the shift lever to the P posi-
tion.
(3) Using SST, connect terminals Ts and CG of the
DLC3.
SST 09843-18040
(4) Turn the ignition switch to the ON position.
(5) Check that the ABS warning light and VSC warning
light blink.
HINT:
If the ABS warning light and VSC warning light do not blink, in-
spect the ABS warning light circuit, VSC warning light and Ts
terminal circuit.
Trouble areaSee Page
Ts and CG terminal circuit05-873
ABS warning light circuit05-840 or
05-844
VSC warning light circuit05-847 or
05-851
(b) Check the master cylinder pressure sensor:
(1) Leave the vehicle in a stationary condition and the
brake pedal in a free condition for 1 second or more,
and quickly depress the brake pedal with a force of
98 N (10 kgf, 22 lbf) or more for 1 second or more.
HINT:

At this time, the ABS warning light remains on for 3 se-
conds.

While the ABS warning light remains on, continue to de-
press the brake pedal with a force of 98 N (10 kgf) or more.

The ABS warning light comes on for 3 seconds every time
the brake pedal operation above is performed.

F02135
Start Position
End PositionWithin ± 5°
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
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963 Author
: Date
:

If master cylinder pressure sensor check can not be com-
pleted, do not depress the brake pedal frequently. It may
further reduce negative pressure and make the sensor
check difficult to complete.

If the negative pressure is insufficient, master cylinder
pressure sensor check may not be completed. In this
case, idle the engine to get enough negative pressure.

If the brake pedal is depressed while engine is stopped,
negative pressure may become insufficient and the BRL
may come on. (It runs the motor and performs incorrect
control.)
(c) Check the yaw rate sensor:
(1) Shift the shift lever to the D position and drive the
vehicle at a speed of approx. 3 mph (5 km/h), turn
the steering wheel either to the left or right 90° or
more, and maintain a 180° circular drive for the ve-
hicle.
(2) Stop the vehicle and shift the shift lever to the P
position, and check that the skid control buzzer
sounds for 3 sec.
NOTICE:
Deceleration sensor check should be completed before
performing speed sensor check.
HINT:

If the skid control buzzer sounds, the sensor check is
completed normally.

If the skid control buzzer does not sound, check the skid
control buzzer circuit (See page 05-866), then perform
the sensor check again. If the skid control buzzer still does
not sound, there is a malfunction in the VSC sensor, so
check for DTCs.

Drive the vehicle in a 180° circle. At the end of the turn,
ensure that the vehicle is exactly 180° within a tolerance
of ± 5°, and facing the other direction from its original
start position.

Do not spin the wheels.
(d) Check the speed sensor signal:
(1) Drive the vehicle straight forward at speed of 28
mph (45 km/h) or higher for several seconds and
check that the ABS warning light goes off.
HINT:
The sensor check may not be completed if the vehicle has its
wheels spun or its steering wheel turned during this check.
(2) Stop the vehicle.
NOTICE:

Before performing speed sensor check, complete
master cylinder pressure sensor and deceleration
sensor checks.