2006 TOYOTA RAV4 Service Repair Manual

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Page 1537 of 2000

TOYOTA RAV4 2006 Service Repair Manual 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 whe

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

Page 1538 of 2000

TOYOTA RAV4 2006 Service Repair Manual 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

Page 1539 of 2000

TOYOTA RAV4 2006 Service Repair Manual 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 norm

Page 1540 of 2000

TOYOTA RAV4 2006 Service Repair Manual 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 wi

Page 1541 of 2000

TOYOTA RAV4 2006 Service Repair Manual 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 bl

Page 1542 of 2000

TOYOTA RAV4 2006 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–39
BC
(h) w/ Auto LSD only:
Check the end of the sensor.
(1) When the sensor check is successfully
completed, the ABS warning light blinks in

Page 1543 of 2000

TOYOTA RAV4 2006 Service Repair Manual BC–40BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
• If all sensors are normal, a normal system
code is output (the light comes on for 0.25
seconds at intervals of 0.25 seconds).
(4) A

BC–40BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
• If all sensors are normal, a normal system
code is output (the light comes on for 0.25
seconds at intervals of 0.25 seconds).
(4) After the check, disconnect SST from terminals
13 (TC) and 4 (CG) of the DLC3.
(5) Turn the ignition switch OFF.
3. DTC OF TEST MODE FUNCTION (SIGNAL CHECK)
DTC of ABS sensor check function:
DTC of VSC sensor check function:
HINT:
• *: w/ Downhill assist control
• The DTCs in this table are only output in Test Mode.
• The detection of DTCs from C1271/71 to C1274/74 is
completed before the vehicle speed reaches 5 km/h
(3 mph).
• The detection of DTCs from C1275/75 to C1278/78 is
completed before the vehicle speed reaches 45 km/h
(28 mph).
DTC No. Diagnosis Trouble Areas
C1271/71 Low output signal of front speed sensor RH • Front speed sensor RH
• Speed sensor circuit
• Sensor installation
C1272/72 Low output signal of front speed sensor LH • Front speed sensor LH
• Speed sensor circuit
• Sensor installation
C1273/73 Low output signal of rear speed sensor RH • Rear speed sensor RH (for 4WD)
• Skid control sensor RH (for 2WD)
• Speed sensor circuit
• Sensor installation
C1274/74 Low output signal of rear speed sensor LH • Rear speed sensor LH (4WD)
• Skid control sensor LH (2WD)
• Speed sensor circuit
• Sensor installation
C1275/75 Abnormal change in output signal of front
speed sensor RH• Sensor installation
• Speed sensor rotor
• Foreign matter on sensor tip or sensor
rotor
C1276/76 Abnormal change in output signal of front
speed sensor LH• Sensor installation
• Speed sensor rotor
• Foreign matter on sensor tip or sensor
rotor
C1277/77 Abnormal change in output signal of rear
speed sensor RH• Sensor installation
• Speed sensor rotor
• Foreign matter on sensor tip or sensor
rotor
C1278/78 Abnormal change in output signal of rear
speed sensor LH• Sensor installation
• Speed sensor rotor
• Foreign matter on sensor tip or sensor
rotor
C1279/79 Deceleration sensor output voltage
malfunction• Yaw rate sensor
• Sensor installation
C1281/81 Master cylinder pressure sensor output
malfunction• Master cylinder pressure sensor
• Brake pedal load sensing switch (w/ 16-
inch disc)
DTC No. Diagnosis Trouble Areas
C0371/71 Yaw rate sensor Yaw rate sensor
C1379/74* Downhill assist control operation switch Downhill assist control switch

Page 1544 of 2000

TOYOTA RAV4 2006 Service Repair Manual BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–41
BC
• C1271/71 to C1274/74: The speed output from only
one wheel is extremely low despite other wheel speed
outputs reaching 5 km/h (3 mp

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