change wheel TOYOTA SIENNA 2007 Service User Guide

TW–68TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
HINT:
*: It may take about 5 to 6 minutes until the values are
displayed. If the values are not displayed after a few
minutes, perform troubleshooting according to the
inspection procedure for DTCs C2121/21 to C2124/24
(See page TW-42).
(f) Rapidly reduce the tire pressure for each wheel at least
40 kPa (0.4 kg/cm
2, 5.8 psi) within 30 seconds.
(g) Check the DATA LIST.
NOTICE:
• It takes about 5 to 6 minutes to display the
updated tire pressure data.
• When no "TIREPRESS" data has changed, reset
the tire pressure to the appropriate specified
value and rotate the tire 90 to 270 degrees. Then
rapidly release the tire pressure and recheck it.
• Record the transmitter ID of which "TIREPRESS"
data corresponds to each tire.
(h) After confirming that one of "TIREPRESS" data for one
tire (ID1 to ID4) has changed, repeat this procedure one
by one. Identify the transmitter that corresponds to a
DTC.
Result
A
B
C
TIREPRESS2ID2 tire inflation pressure (Absolute
pressure) /
min.: 100 kPa (1 kgf/cm2, 14 psi)
max.: 449.35 kPa (4.5 kgf/cm2, 63 psi)Actual tire inflation pressureIf 100 kPa (1 kgf/cm
2, 14 psi) for
absolute pressure is displayed, the
data has not been received.*
TIREPRESS3ID3 tire inflation pressure (Absolute
pressure) /
min.: 100 kPa (1 kgf/cm
2, 14 psi)
max.: 449.35 kPa (4.5 kgf/cm2, 63 psi)Actual tire inflation pressureIf 100 kPa (1 kgf/cm
2, 14 psi) for
absolute pressure is displayed, the
data has not been received.*
TIREPRESS4ID4 tire inflation pressure (Absolute
pressure) /
min.: 100 kPa (1 kgf/cm
2, 14 psi)
max.: 449.35 kPa (4.5 kgf/cm2, 63 psi)Actual tire inflation pressureIf 100 kPa (1 kgf/cm
2, 14 psi) for
absolute pressure is displayed, the
data has not been received.* Tester Display Measurement Item/Range Normal Condition Diagnostic Note
Result Proceed to
One or more of transmitters abnormal A
All normal B
All abnormal C
Go to step 4
END

TW–22TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEM
TW
NOTICE:
• The transmitter ID is written on the tire
pressure warning valve and
transmitter. It will be unable to be read
after installing the tire pressure
warning valve and transmitter on the
tire and wheel. Therefore, take a note
of the transmitter ID before installing
the tire pressure warning valve and
transmitter.
• The ID registration must be performed
for all tire pressure warning valve and
transmitters. Check the DATA LIST,
replace the exchanged ID with a new
ID, and make a new data list of all 4
tires for the vehicle.
2. REGISTER TRANSMITTER ID (Using Intelligent
Te s t e r )
(a) Connect the intelligent tester to DLC3 (Procedure
"A").
(b) Turn the ignition switch to the ON position
(Procedure "B").
(c) Select the REGIST TIRE following the intelligent
tester screen (UTILITY - REGIST TIRE) (Procedure
"C").
(d) Input the IDs (ID1 to ID4) using the intelligent tester
and transmit them to the tire pressure warning ECU
(Procedure "D").
(e) Set the ID transmission condition to "ID Registration
is complete" (Procedure "E").
HINT:
• The previously registered IDs will be deleted
from the memory when the registration is
completed.
• If the procedures "C" to "D" are not completed
within 5 min., the mode will return to the normal
operation mode.
• If the registration cannot be completed with error,
connect TC to GND of DLC3, then retry.
• When the system is in initialization mode after
the tire pressure warning reset switch has been
operated, the registration is disabled until the
initialization process is canceled or completed.
F100622
C107265

TIRE AND WHEEL – TIRE PRESSURE WARNING SYSTEMTW–25
TW
INITIALIZATION
1. DESCRIPTION OF INITIALIZATION
(a) Perform initialization in the following cases:
• Before delivery of a new vehicle.
• After replacement of the tire pressure warning
ECU*.
• After replacement of the tire pressure warning
valve and transmitter.
• Specified tire pressure changes depending on
the size or type of the tire.
*: Perform initialization after the transmitter ID
registration is completed (See page TW-20).
(b) Before initialization
(1) Set the air pressure of all tires to the specified
value.
Cold tire inflation pressure
NOTICE:
Perform the tire pressure adjustment after
the vehicle has sufficiently cooled down. If
the vehicle is not sufficiently cooled down,
increase the air pressure by 20 to 30 kPa (0.2
to 0.3 kgf/cm
2, 2.9 to 4.3 psi) above the
specified value.
Tire Size
kPa (kgf/cm2, psi)
P215/65R16
240 (2.4, 35)
P225/60R17

BC–6BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEM
BC
HINT:
The codes in this table are output only in Test Mode
(signal check).
4. SPEED SENSOR SIGNAL CHECK (WHEN USING
INTELLIGENT TESTER):
HINT:
• If the ignition switch is turned from the ON to the ACC
or LOCK position during Test Mode, DTCs of the
signal check function will be erased.
• During Test Mode, the ECU records all DTCs of the
signal check function. By performing the signal check,
the codes are erased if normality is confirmed. The
remaining codes are the codes where an abnormality
was found.
(a) Turn the ignition switch off.
(b) Check that the steering wheel is in the straight-
ahead position.
(c) Connect the intelligent tester to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Set the intelligent tester to Test Mode (select
"SIGNAL CHECK").
HINT:
Refer to the intelligent tester operator's manual for
further details.
C1274/74 Low output signal of rear speed sensor LH• Rear speed sensor LH
• Sensor installation
• Speed sensor rotor
C1275/75Abnormal change in output signal of front speed sensor
RHSpeed sensor rotor
C1276/76Abnormal change in output signal of front speed sensor
LHSpeed sensor rotor
C1277/77Abnormal change in output signal of rear speed sensor
RHSpeed sensor rotor
C1278/78Abnormal change in output signal of rear speed sensor
LHSpeed sensor rotor Code No. Diagnosis Trouble Area
E144486E01

BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–25
BC
DESCRIPTION
Refer to DTCs C0200/31, C0205/32, C1235/35, and C1236/36 (See page BC-17).
DTCs C1273/73 to C1278/78 can be deleted when the speed sensor sends a vehicle speed signal or the
Test Mode ends. DTCs C1273/73 to C1278/78 are output only in the Test Mode.
HINT:
• DTC C0210/33 and C1238/38 are for the rear speed sensor RH.
• DTC C0215/34 and C1239/39 are for the rear speed sensor LH.
DTC C0210/33 Rear Speed Sensor RH Circuit
DTC C0215/34 Rear Speed Sensor LH Circuit
DTC C1238/38Foreign Object is Attached on Tip of Rear
Speed Sensor RH
DTC C1239/39Foreign Object is Attached on Tip of Rear
Speed Sensor LH
DTC C1273/73Low Output Signal of Rear Speed Sensor RH
(Test Mode DTC)
DTC C1274/74Low Output Signal of Rear Speed Sensor LH
(Test Mode DTC)
DTC C1277/77Abnormal Change in Output Signal of Rear
Speed Sensor RH (Test Mode DTC)
DTC C1278/78Abnormal Change in Output Signal of Rear
Speed Sensor LH (Test Mode DTC)
DTC No. DTC Detection Condition Trouble Area
C0210/33
C0215/34With vehicle speed at 10 km/h (6 mph) or more, sensor
signal circuit of faulty wheel is open or short for 1
second or more.
• Momentary interruption of sensor signal of faulty
wheel has occurred 7 times or more.
• Sensor signal circuit is open for 0.5 seconds or
more.• Rear speed sensor RH/LH
• Rear speed sensor RH/LH circuit
• Speed sensor rotor
• Sensor installation
• Brake actuator assembly
C1238/38
C1239/39At vehicle speed of 20 km/h (12 mph) or more, condition
that noise is included in speed sensor signal continues
for 5 seconds or more.• Rear speed sensor RH/LH
• Speed sensor rotor
• Sensor installation
• Brake actuator assembly

BRAKE CONTROL – ANTI-LOCK BRAKE SYSTEMBC–19
BC
DESCRIPTION
The speed sensor detects wheel speed and transmits the appropriate signals to the ECU. These signals
are used for control of the ABS control system. The front and rear rotors have 48 serrations each.
When the rotors rotate, the magnetic field generated by the permanent magnet in the speed sensor
induces an AC voltage.
Since the frequency of this AC voltage changes in direct proportion to the speed of the rotor, the
frequency is used by the ECU to detect the speed of each wheel.
DTCs C1271/71 to C1276/76 can be deleted when the speed sensor sends a vehicle speed signal or the
Test Mode ends. DTCs C1271/71 to C1276/76 are output only in the Test Mode.
DTC C0200/31 Front Speed Sensor RH Circuit
DTC C0205/32 Front Speed Sensor LH Circuit
DTC C1235/35Foreign Object is Attached on Tip of Front
Speed Sensor RH
DTC C1236/36Foreign Object is Attached on Tip of Front
Speed Sensor LH
DTC C1271/71Low Output Signal of Front Speed Sensor RH
(Test Mode DTC)
DTC C1272/72Low Output Signal of Front Speed Sensor LH
(Test Mode DTC)
DTC C1275/75Abnormal Change in Output Signal of Front
Speed Sensor RH (Test Mode DTC)
DTC C1276/76Abnormal Change in Output Signal of Front
Speed Sensor LH (Test Mode DTC)
F000010E04

BC–76BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
VSC sensor:
HINT:
The codes in this table are output only in Test Mode
(signal check).
7. SENSOR SIGNAL CHECK BY TEST MODE (SIGNAL
CHECK) (WHEN USING SST CHECK WIRE):
(a) When having replaced the skid control ECU and/or
yaw rate and deceleration sensor, perform zero
point calibration of the yaw rate and deceleration
sensor.
HINT:
• If the ignition switch is turned from the ON
position to the ACC or off during test mode
(signal check), DTCs of the signal check function
will be erased.
• During test mode (signal check), the skid control
ECU records all DTCs of the signal check
function. By performing the test mode (signal
check), the codes are erased if normality is
confirmed. The remaining codes are the codes
where an abnormality was found.
(b) Procedures for test mode.
(1) Turn the ignition switch off.
(2) Check that the steering wheel is in the
straightahead position and move the shift lever
to the P position.
C1273/73 Low output signal of rear speed sensor RH• Rear speed sensor RH
• Sensor installation
• Speed sensor rotor
C1274/74 Low output signal of rear speed sensor LH• Rear speed sensor LH
• Sensor installation
• Speed sensor rotor
C1275/75Abnormal change in output signal of front speed sensor
RHSpeed sensor rotor
C1276/76Abnormal change in output signal of front speed sensor
LHSpeed sensor rotor
C1277/77Abnormal change in output signal of rear speed sensor
RHSpeed sensor rotor
C1278/78Abnormal change in output signal of rear speed sensor
LHSpeed sensor rotor
C1279/79 Acceleration sensor output voltage malfunction• Yaw rate and deceleration sensor
• Sensor installation
C1281/81 Master cylinder pressure sensor output malfunction• Stop light switch
• Master cylinder pressure sensor
DTC Code Detection Item Trouble Area
C0371/71 Yaw rate sensor Yaw rate and deceleration sensor DTC Code Detection Item Trouble Area

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–79
BC
• If the skid control buzzer does not sound yet,
there is a malfunction in the yaw rate sensor,
so check the DTC.
• Make a 180
turn. At the end of the turn, the
direction of the vehicle should be within 180
+- 5
of its start position.
• Do not spin the wheels.
11. DTC OF TEST MODE (SIGNAL CHECK) FUNCTION
ABS sensor:
VSC sensor:
HINT:
The codes in this table are output only in Test Mode
(signal check).
DTC Code Detection Item Trouble Area
C1271/71 Low output signal of front speed sensor RH• Front speed sensor RH
• Sensor installation
• Speed sensor rotor
C1272/72 Low output signal of front speed sensor LH• Front speed sensor LH
• Sensor installation
• Speed sensor rotor
C1273/73 Low output signal of rear speed sensor RH• Rear speed sensor RH
• Sensor installation
• Speed sensor rotor
C1274/74 Low output signal of rear speed sensor LH• Rear speed sensor LH
• Sensor installation
• Speed sensor rotor
C1275/75Abnormal change in output signal of front speed sensor
RHSpeed sensor rotor
C1276/76Abnormal change in output signal of front speed sensor
LHSpeed sensor rotor
C1277/77Abnormal change in output signal of rear speed sensor
RHSpeed sensor rotor
C1278/78Abnormal change in output signal of rear speed sensor
LHSpeed sensor rotor
C1279/79 Acceleration sensor output voltage malfunction• Yaw rate and deceleration sensor
• Sensor installation
C1281/81 Master cylinder pressure sensor output malfunction• Stop light switch
• Master cylinder pressure sensor
DTC Code Detection Item Trouble Area
C0371/71 Yaw rate sensor Yaw rate and deceleration sensor

BC–86BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEM
BC
FREEZE FRAME DATA
1. FREEZE FRAME DATA
(a) The vehicle (sensor) status, stored during ABS and/
or VSC operation or at the time of an error code
detection, can be displayed by the intelligent tester.
(b) Only one record of freeze frame data is stored and
the freeze frame data generated during ABS and/or
VSC operation are updated whenever the vehicle
status is changed. Also, the number of the ignition
switch is ON after the freeze frame data is stored
can be stored up to 31 and it can be displayed. After
storing the DTC, the freeze frame data is not up-
dated.
HINT:
If the ignition switch "ON" operation exceeds 31
times, "31"appears on the display.
(c) If a malfunction occurs, the freeze frame data is
stored but the ABS actuation data is deleted.
*
1: If no conditions are specifically stated for "Idling",
it means the shift lever is at N or P position, the A/C
switch is OFF and all accessory switches are OFF.
*
2: 2WD only
Tester Display Measurement Item
Reference Value*1
VEHICLE SPD Wheel speed sensor reading Speed indicated on speedometer
STOP LIGHT SW Stop light switch signal Stop light 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
SYSTEM System statusABS activated: ABS
VSC/TRC activated: VSC/TRC
BA activated: BA
Fail safe mode activated: FAIL SF
No system activated: NO SYS
YAW RATE Yaw rate angle sensor reading -100 to 100
STEERING ANG Steering sensor readingLeft turn: Increase
Right turn: Drop
THROTTLE Throttle position sensor readingRelease accelerator pedal: Approx. 0 deg.
Depress accelerator pedal: Approx. 90 deg.
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*
2Traction OFF switch signalTRAC OFF SW ON: ON
OFF: OFF
SHIFT POSITION Shift lever positionFA I L
P,N
R
D
4
3
2
L

BRAKE CONTROL – VEHICLE STABILITY CONTROL SYSTEMBC–87
BC
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
With the intelligent tester connected to the DLC3 and the
ignition switch to the ON position, the ABS, TRAC and
VSC data list can be displayed. Follow the prompts on
the tester screen to access the DATA LIST.
Tester Display Measurement Item/Range Normal Condition Diagnostic Note
ABS MOT RELAY ABS motor relay / ON or OFF ON : Motor relay ON -
SOL RELAY Solenoid relay / ON or OFF ON : Solenoid relay ON -
VSC / TRC OFF SW* Traction OFF switch / ON or OFF ON : Traction OFF switch OFF -
IDLE SW Main idle switch / ON or OFFON : Accelerator pedal released
OFF : Accelerator pedal
depressed-
STOP LIGHT SW Stop light switch / ON or OFFON : Brake pedal depressed
OFF : Brake pedal released-
PKB SW Parking brake switch / ON or OFFON : Parking brake applied
OFF : Parking brake released-
ABS OPERT FRABS operation (FR) / BEFORE or
OPERATEBEFORE : No ABS operation
(FR)
OPERATE : During ABS
operation (FR)-
ABS OPERT FLABS operation (FL) / BEFORE or
OPERATEBEFORE : No ABS operation (FL)
OPERATE : During ABS
operation (FL)-
ABS OPERT RRABS operation (RR) / BEFORE or
OPERATEBEFORE : No ABS operation
(RR)
OPERATE : During ABS
operation (RR)-
ABS OPERT RLABS operation (RL) / BEFORE or
OPERATEBEFORE : No ABS operation
(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 speed Similar speed as indicated on
speed meter
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
speed meter
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
speed meter
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
speed meter
DECELERAT SENSDeceleration sensor 1 reading /
min.: -1.869 G, max.: 1.869 GApproximately 0 +- 0.13G at still
conditionReading changes when vehicle is
bounced
DECELERAT SENS2Deceleration sensor 2 reading /
min.: -1.869 G, max.: 1.869 GApproximately 0 +- 0.13G at still
conditionReading changes when vehicle is
bounced
IG VOLTAGEECU power supply voltage /
UNDER / NORMALNORMAL: 9.5 V or over UNDER:
Below 9.5 V-
SFRRABS solenoid (SFRR) / ON or
OFFON : Operate -
SFRHABS solenoid (SFRH) / ON or
OFF
ON : Operate -
SFLRABS solenoid (SFLR) / ON or
OFFON : Operate -
SFLHABS solenoid (SFLH) / ON or
OFFON : Operate -