2006 TOYOTA RAV4 sensor

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–31
BC
(8) Check that the ABS warning light and VSC
warning light blink as shown in the illustration.
HINT:
If the ABS warning light and VSC warning
warning light do not blink, check the TS and CG
terminal circuit, and ABS and VSC warning light
circuits.
(9) Start the engine.
(b) w/ 16-inch disc only:
Check the lost booster pressure judgment and
perform the master cylinder pressure sensor zero
point calibration.
NOTICE:
Preform the check in the lost booster pressure
state (negative pressure in the booster is
depressurized).
(1) Turn the ignition switch ON.
(2) Check that the brake warning light comes on
when depressing the brake pedal with a force of
59 N (6 kgf, 13.2 lbf) or more for 1 second or
more. (The lost booster pressure state is judged
normal.)
(3) Start the engine depressing the brake pedal with
a force of 59 N (6 kgf, 13.2 lbf) or more for 1
second or more.
(4) Check that the brake warning light goes off when
quickly releasing the brake pedal. (The lost
booster pressure state is judged normal.)
(5) Leave the vehicle for 1 second or more. (Master
cylinder pressure sensor zero point calibration.)
NOTICE:
• If you slowly depress the brake pedal or
depress it again, master cylinder pressure
sensor zero point calibration is not
performed normally.
• If the lost booster pressure judgment
check is not completed normally, the
master cylinder pressure sensor check is
not judged.
• If a recheck is performed after the engine
has started, end the Test Mode, enter Test
Mode again, and release the vacuum in
the booster by pumping the brake pedal
prior to the recheck.
C108848E14
Section Title See procedure
ABS Warning Light does not Come ONBC-138
VSC Warning Light does not Come ONBC-142
TS and CG Terminal CircuitBC-177

BC–32BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
(c) Check the deceleration sensor.
(1) Keep the vehicle stationary on a level surface for
1 second or more.
HINT:
The deceleration sensor check can be
performed together with the following master
cylinder pressure sensor check.
(d) Check the master cylinder pressure sensor.
(1) Leave the vehicle in a stationary condition and
release the brake pedal 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.
Check that the ABS warning light remains
illuminated for 3 seconds.
HINT:
• Ensure that the ABS warning light comes on.
• While the ABS warning light remains
illuminated, continue depressing the brake
pedal with a force of 98 N (10 kgf, 22 lbf) or
more.
• The ABS warning light comes on for 3
seconds every time the brake pedal operation
above is performed.
(e) Check the speed sensor.
(1) Check that the ABS warning light is blinking as
shown in the illustration.
(2) Check the speed sensor signal.
1. Drive the vehicle straight forward at a speed
of 45 km/h (28 mph) or more for several
seconds.
2. Check that the ABS warning light goes off.
NOTICE:
• The speed sensor check may not be
completed if the sensor check is
started with the steering wheel turned
or one or more wheels spinning.
• If the speed sensor check is
commenced while the steering wheel is
turned, the ABS warning light may
come on after the low speed check is
finished.
• The ABS warning light comes on
immediately when an abnormality is
detected.
• When the speed sensor signal is
normal, the ABS warning light goes off
while driving at 45 km/h (28 mph) or
more, and blinks in the test mode
pattern while the vehicle is stationary.
C108848E01

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–33
BC
• Do not drive the vehicle at a speed of 80
km/h (50 mph) or more after the ABS
warning light turns off, because test
mode DTCs are set again when the
vehicle speed exceeds 80 km/h (50
mph).
3. Stop the vehicle.
(f) Check the yaw rate sensor.
(1) Move the shift lever to P and set the parking
brake lever.
(2) Check that the VSC warning light is blinking as
shown in the illustration.
(3) Keep the vehicle stationary on a level surface for
1 second or more.
C115115E04
C108848E14

BC–34BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
(4) Shift the shift lever to the D position and drive
the vehicle at a speed of approximately 5 km/h
(3 mph), and turn the steering wheel either to the
left or right 90
or more to turn the vehicle
through 180
.
(5) Stop the vehicle, move the shift lever into the P
position, and then apply the parking brake.
(6) Check that the skid control buzzer sounds for 3
seconds.
HINT:
• If the skid control buzzer sounds, the signal
check has been completed normally.
• If the skid control buzzer does not sound,
check the skid control buzzer circuit (see
page BC-172).
• If the skid control buzzer still does not sound,
there is a malfunction in the yaw rate sensor,
so check for DTCs.
• Drive the vehicle in a 180
semi circle. At the
end of the turn, the direction of the vehicle
should be within 180 +-5
of its start position.
• Complete the vehicle turn within 20 seconds.
• Do not spin the wheels.
(g) w/ Downhill assist control only:
Check the downhill assist control operation switch.
(1) Check that the VSC warning light is blinking as
shown in the illustration.
(2) Check the downhill assist control switch.
1. Push the downhill assist control switch on.
2. Push the downhill assist control switch off.
(h) w/ Auto LSD only:
(1) Check that the AUTO LSD light illuminates only
when the AUTO LSD switch is pressed.
(i) Check the end of sensor.
(1) When the sensor check is successfully
completed, the ABS warning light blinks in the
test mode pattern when the vehicle is stopped,
and goes off when the vehicle is driven.
NOTICE:
If the sensor check is not completed, the
ABS warning light blinks even while the
vehicle is driving and the ABS does not
operate.
(j) Read the DTCs of signal check function.
(1) Read the DTC(s) by following the instructions on
the tester screen.
NOTICE:
• If only the DTCs are displayed, repair the
malfunction area and clear the DTCs.
• If the DTCs or Test Mode codes (DTC of
signal check function) are displayed,
repair the malfunction area, clear the
DTCs and perform the Test Mode
inspection.
F002135E15
C108848E14

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–35
BC
HINT:
See the list of the DTCs (refer to "DTC OF TEST
MODE FUNCTION (SIGNAL CHECK)" below).
2. CHECK SENSOR SIGNAL BY TEST MODE (When not
Using Intelligent Tester)
(a) Procedures for test mode:
(1) Turn the ignition switch OFF.
(2) Check that the steering wheel is in the centered
position.
(3) Check that the shift lever is in the P position and
apply the parking brake.
(4) Using SST, connect terminals 12 (TS) and 4
(CG) of the DLC3.
SST 09843-18040
(5) Turn the ignition switch ON.
(6) Check that the ABS warning light and VSC
warning light blink as shown in the illustration.
HINT:
If the ABS warning light and VSC warning
warning light and multi information display and
master caution indicator light do not blink, check
the TS and CG terminal circuit, and ABS and
VSC warning light circuits.
(7) Start the engine.
(b) w/ 16-inch disc:
Check the lost booster pressure judgment and
perform the master cylinder pressure sensor zero
point calibration.
NOTICE:
Preform the check in the lost booster pressure
state (negative pressure in the booster is
depressurized).
(1) Turn the ignition switch ON.
(2) Check that the BRAKE warning light comes on
when depressing the brake pedal with a force of
59 N (6 kgf, 13.2 lbf) or more for 1 second or
more. (The lost booster pressure state is judged
normal.)
(3) Start the engine depressing the brake pedal with
a force of 59 N (6 kgf, 13.2 lbf) or more for 1
second or more.
H100769E03
C108848E14Section Title See procedure
ABS Warning Light does not Come ONBC-138
VSC Warning Light does not Come ONBC-142
TS and CG Terminal CircuitBC-177

BC–36BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
(4) Check that the brake warning light goes off when
quickly releasing the brake pedal. (The lost
booster pressure state is judged normal.)
(5) Leave the vehicle for 1 second or more. (Master
cylinder pressure sensor zero point calibration.)
NOTICE:
• If you slowly depress the brake pedal or
depress it again, master cylinder pressure
sensor zero point calibration is not
performed normally.
• If the lost booster pressure judgment
check is not completed normally, the
master cylinder pressure sensor check is
not judged.
• If a recheck is performed after the engine
has started, end the Test Mode, enter Test
Mode again, and release the vacuum in
the booster by pumping the brake pedal
prior to the recheck.
(c) Check the deceleration sensor.
(1) Keep the vehicle stationary on a level surface for
1 second or more.
HINT:
The deceleration sensor check can be
performed together with the following master
cylinder pressure sensor check.
(d) Check the master cylinder pressure sensor.
(1) Leave the vehicle in a stationary condition and
release the brake pedal 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.
Check that the ABS warning light remains
illuminated for 3 seconds.
HINT:
• Ensure that the ABS warning light comes on.
• While the ABS warning light remains
illuminated, continue depressing the brake
pedal with a force of 98 N (10 kgf, 22 lbf) or
more.
• The ABS warning light comes on for 3
seconds every time the brake pedal operation
above is performed.
(e) Check the speed sensor.
(1) Check that the ABS warning light is blinking as
shown in the illustration.
(2) Check the speed sensor signal.
1. Drive the vehicle straight forward at a speed
of 45 km/h (28 mph) or more for several
seconds.
C108848E01

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–37
BC
2. Check that the ABS warning light goes off.
NOTICE:
• The speed sensor check may not be
completed if the sensor check is
started with the steering wheel turned
or one or more wheels spinning.
• If the speed sensor check is
commenced while the steering wheel is
turned, the ABS warning light may
come on after the low speed check is
finished.
• The ABS warning light comes on
immediately when an abnormality is
detected.
• When the speed sensor signal is
normal, the ABS warning light goes off
while driving at 45 km/h (28 mph) or
more, and blinks in the test mode
pattern while the vehicle is stationary.
• Do not drive the vehicle at a speed of 80
km/h (50 mph) or more after the ABS
warning light turns off, because test
mode DTCs are set again when the
vehicle speed exceeds 80 km/h (50
mph).
3. Stop the vehicle.
C115115E04

BC–38BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
(f) Check the yaw rate sensor.
(1) Move the shift lever to P and set the parking
brake lever.
(2) Check that the VSC warning light is blinking as
shown in the illustration.
(3) Keep the vehicle stationary on a level surface for
1 second or more.
(4) Shift the shift lever to the D position and drive
the vehicle at a speed of approximately 5 km/h
(3 mph), and turn the steering wheel either to the
left or right 90
or more to turn the vehicle
through 180
.
(5) Stop the vehicle, move the shift lever into the P
position, and then apply the parking brake.
(6) Check that the skid control buzzer sounds for 3
seconds.
HINT:
• If the skid control buzzer sounds, the signal
check has been completed normally.
• If the skid control buzzer does not sound,
check the skid control buzzer circuit (see
page BC-172).
• If the skid control buzzer still does not sound,
there is a malfunction in the yaw rate sensor,
so check for DTCs.
• Drive the vehicle in a 180
semi circle. At the
end of the turn, the direction of the vehicle
should be within 180 +-5
of its start position.
• Complete the vehicle turn within 20 seconds.
• Do not spin the wheels.
(g) w/ Downhill assist control only:
Check the downhill assist control operation switch.
(1) Check that the VSC warning light is blinking as
shown in the illustration.
(2) Check the downhill assist control switch.
1. Push the downhill assist control switch on.
2. Push the downhill assist control switch off.
C108848E14
F002135E15
C108848E14