2006 TOYOTA RAV4 calibration

BC–26BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
CALIBRATION
1. DESCRIPTION
(a) After replacing components relating to the VSC or
performing "Front wheel alignment adjustment",
clear and read the sensor calibration data.
(b) Follow the chart to perform calibration.
2. CLEAR ZERO POINT CALIBRATION DATA (When
Using Intelligent Tester)
(a) Clear the zero point calibration data.
(1) Connect the intelligent tester (with CAN VIM) to
the DLC3.
(2) Turn the ignition switch ON.
(3) Operate the intelligent tester to erase the codes
(select "Reset Memory").
HINT:
Refer to the intelligent tester operator's manual
for further details.
(4) Using the intelligent tester, perform the zero
point calibration of the yaw rate and deceleration
sensor.
CAUTION:
If the ignition switch is turned ON for more
than 15 seconds with the shift lever in the P
position after zero point of the yaw rate and
acceleration sensor has been cleared, only
the zero point of the yaw rate sensor will be
stored. If the vehicle is driven under this
condition, the skid control ECU will
recognize that zero point calibration of the
acceleration sensor is not completed and will
indicate that there is a malfunction in the
VSC system using the indicator light.
Replacing Parts / Operation Necessary Operation
Skid Control ECU Yaw rate and deceleration sensor zero point calibration.
Yaw Rate Sensor 1. Clearing zero point calibration data
2. Yaw rate and deceleration sensor zero point calibration
Front Wheel Alignment Adjustment 1. Clearing zero point calibration data
2. Yaw rate and deceleration sensor zero point calibration
B127989E01
C106531

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–27
BC
3. PREFORM ZERO POINT CALIBRATION OF YAW
RATE AND DECELERATION SENSOR (When Using
Intelligent Tester)
NOTICE:
• While obtaining the zero point, do not vibrate the
vehicle by tilting, moving or shaking it and keep it
stationary. (Do not start the engine.)
• Perform this on a level surface (with an inclination
of less than 1
).
(a) Procedures for Test Mode.
(1) Check that the shift lever is in the P position and
apply the parking brake.
NOTICE:
DTCs C1210/36 and C1336/39 will be
recorded if the shift lever is not the P
position (see page BC-88).
(2) Connect the intelligent tester (with CAN VIM) to
the DLC3.
(3) Turn the ignition switch ON.
(4) Set the intelligent tester to test mode (select
"Test Mode").
HINT:
Refer to the intelligent tester operator's manual
for further details.
(b) Obtain the zero point of the yaw rate and
deceleration sensor.
(1) Keep the vehicle stationary on a level surface for
2 seconds or more.
(2) Check that the VSC warning light blinks as
shown in the illustration.
HINT:
• If the VSC warning light does not blink,
perform the zero point calibration again.
• The zero point calibration is performed only
once after the system enters test mode.
• Calibration cannot be performed again until
the stored data is cleared once.
(3) Turn the ignition switch OFF.
B127989E01
C106532
C108848E14

BC–28BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
4. CLEAR ZERO POINT CALIBRATION DATA (When not
Using Intelligent Tester)
(a) Clear the zero point calibration data.
(1) Turn the ignition switch ON.
(2) The warning light and indicator light come on for
3 seconds to indicate that the initial check is
completed.
(3) Using SST, connect and disconnect terminals 12
(TS) and 4 (CG) of the DLC3 4 times or more
within 8 seconds.
SST 09843-18040
(4) Check that the VSC warning light comes on.
(5) Remove SST from the terminals of the DLC3.
(6) Using a check wire, perform the zero point
calibration of the yaw rate and deceleration
sensor.
CAUTION:
If the ignition switch is turned ON for more
than 15 seconds with the shift lever in the P
position after zero point of the yaw rate and
acceleration sensor has been cleared, only
the zero point of the yaw rate sensor will be
stored. If the vehicle is driven under this
condition, the skid control ECU will
recognize that zero point calibration of the
acceleration sensor is not completed and will
indicate that there is a malfunction in the
VSC system using the indicator light.
5. PERFORM ZERO POINT CALIBRATION OF YAW
RATE AND DECELERATION SENSOR (When not
Using Intelligent Tester)
NOTICE:
• While obtaining the zero point, do not vibrate the
vehicle by tilting, moving or shaking it and keep it
stationary. (Do not start the engine.)
• Perform this on a level surface (with an inclination
of less than 1
).
(a) Procedures for Test Mode.
(1) Turn the ignition switch OFF.
(2) Using SST, connect terminals 12 (TS) and 4
(CG) of the DLC3.
SST 09843-18040
(3) Check that the shift lever is in the P position and
apply the parking brake.
NOTICE:
DTCs C1210/36 and C1336/39 will be
recorded if the shift lever is not the P
position (see page BC-88).
(b) Obtain the zero point of the yaw rate and
deceleration sensor.
(1) Turn the ignition switch ON.
(2) Keep the vehicle stationary on a level surface for
2 seconds or more.
H100769E03
H100769E03

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–29
BC
(3) Check that the VSC warning light blinks as
shown in the illustration.
HINT:
• If the VSC warning light does not blink,
perform the zero point calibration again.
• The zero point calibration is performed only
once after the system enters test mode.
• Calibration cannot be performed again until
the stored data is cleared once.
(4) Turn the ignition switch OFF.
C108848E14

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

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