2001 TOYOTA AVALON wheel size
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DI-230- DIAGNOSTICSANTI-LOCK BRAKE SYSTEM WITH ELECTRONIC
BRAKE FORCE DISTRIBUTION (EBD)
386 Author: Date:
2001 AVALON (RM808U)
DTC 37 Speed Sensor Rotor Faulty
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
37
When any of the following 1. through 3. is detected:
1. Occurrence of wheel speed difference between the front
and rear wheels of either left or right side of the vehicle
and the front left and right wheels. (Detection of mini tire
size, spinning wheel or decelerating wheel.)
2. Continuous ABS control for 60 sec. or more.
3. Interference on 1 or more wheels for 20 sec. with the
brake pedal depressed, or for 5 sec. when the brake
pedal is not depressed.
Speed sensor
Sensor rotor
INSPECTION PROCEDURE
1 Check sensor rotor (See page DI-225).
NG Replace sensor rotor.
OK
2 Check speed sensor (See page DI-225).
NG Replace speed sensor.
OK
3 Check for open or short circuit in harness and connector between speed sensor
and ABS ECU (See page IN-30).
NG Repair or replace harness and connector.
OK
Check and replace ABS ECU.
DI6NG-01
Page 677 of 1897
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
DI-295
451 Author: Date:
2001 AVALON (RM808U)
DTCC1237 / 37 Wrong Number of Teeth at 1 of 4 Wheels
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1237 / 37
Detection of any of conditions from 1. through 4.:
1. When the ignition switch is ON, the speed difference
between the rear right and rear left wheels is 5 km/h
(3mph) or more (vehicle speed: 100 km/h (62 mph) or
less).
2. When the ignition switch is ON, the slip difference be-
tween the reference wheel and any other wheels is 6 %
or more (vehicle speed: 100 km/h (62 mph) or more).
3. Continuous ABS control for 60 sec. or more.
4. Interference on 1 or more wheels for 20 sec. with the
brake pedal depressed, or for 5 sec. when the brake
pedal is not depressed.
Tire size
Speed sensor rotor
INSPECTION PROCEDURE
1 Check tire size.
NG Replace tires so that all 4 tires are the same in
size.
OK
2 Check sensor rotor (See page DI-267).
NG Replace speed sensor rotor.
OK
3 Check speed sensor (See page DI-267).
NG Replace speed sensor.
OK
DI6O5-01
Page 719 of 1897
DI6NT-03
DI-258
- DIAGNOSTICSABS WITH EBD & BA & TRAC & VSC SYSTEM
414 Author: Date:
2001 AVALON (RM808U)
DIAGNOSTIC TROUBLE CODE CHART
NOTICE:
When removing the part, turn the ignition switch OFF.
When replacing the steering angle sensor or ECU, make sure to perform steering angle sensor
zero point calibration.
HINT:
Using SST 09843-18020, connect the terminals Tc and E1.
If any abnormality is not found when inspecting parts, inspect the ECU.
If a malfunction code is displayed during the DTC check, check the circuit corresponding the code. For
details of each code, refer to the page under respective ºDTC No.º in the DTC chart.
DTC chart of ABS system:
DTC No.
(See Page)Detection ItemTrouble Area
C0278 / 11
(DI-280)Open or short circuit in ABS solenoid relay circuitABS solenoid relay
ABS solenoid relay circuit
C0273 / 13
(DI-276)Open or short circuit in ABS motor relay circuitABS motor relay
ABS motor relay circuit
C0226 / 21
(DI-273)Open or short circuit in brake actuatorBrake actuator
SFRR or SFRH circuit
C0236 / 22
(DI-273)Open or short circuit in brake actuatorBrake actuator
SFLR or SFLH circuit
C0246 / 23
(DI-273)Open or short circuit in brake actuatorBrake actuator
SRRR or SRRH circuit
C0256 / 24
(DI-273)Open or short circuit in brake actuatorBrake actuator
SRLR or SRLH circuit
C0200 / 31*
(DI-267)Right front wheel speed sensor signal malfunction
C0205 / 32*
(DI-267)Left front wheel speed sensor signal malfunctionRight front, left front, right rear and left rear speed sensor
Eh d i itC0210 / 33*
(DI-267)Right rear wheel speed sensor signal malfunction
Each speed sensor circuit
Speed sensor rotor
C0215 / 34*
(DI-267)Left rear wheel speed sensor signal malfunction
C1330 / 35*
(DI-267)Open circuit in right front speed sensor circuitRight front speed sensor
Right front speed sensor circuit
C1331 / 36*
(DI-267)Open circuit in left front speed sensor circuitLeft front speed sensor
Left front speed sensor circuit
C1237 / 37
(DI-295)Front tires are different from rear in size.Tire size
Speed sensor rotor
C1332 / 38*
(DI-267)Open circuit in right rear speed sensor circuitRight rear speed sensor
Right rear speed sensor circuit
C1333 / 39*
(DI-267)Open circuit in left rear speed sensor circuitLeft rear speed sensor
Left rear speed sensor circuit
C1241 / 41
(DI-297)Low battery positive voltage or abnormally high battery positive
voltageBattery
Charging system
Power source circuit
C1249 / 58
(DI-303)Open circuit in stop light switch circuitStop light switch
Stop light switch circuit
Page 1443 of 1897
IN-38
- INTRODUCTIONTERMS
38 Author: Date:
2001 AVALON (RM808U) OEM
Original Equipment Manufacturing
OHCOverhead Camshaft
OHVOverhead Valve
OPTOption
O/SOversize
P & BVProportioning And Bypass Valve
PCSPower Control System
PCVPositive Crankcase Ventilation
PKBParking Brake
PPSProgressive Power Steering
PSPower Steering
PTOPower Take-Of f
R & PRack And Pinion
R/BRelay Block
RBSRecirculating Ball Type Steering
R/FReinforcement
RFSRigid Front Suspension
RRSRigid Rear Suspension
RHRight-Hand
RHDRight-Hand Drive
RLYRelay
ROMRead Only Memory
RrRear
RRRear-Engine Rear-Wheel Drive
RWDRear-Wheel Drive
SDNSedan
SENSensor
SICSStarting Injection Control System
SOCState Of Charge
SOHCSingle Overhead Camshaft
SPECSpecification
SPISingle Point Injection
SRSSupplemental Restraint System
SSMSpecial Service Materials
SSTSpecial Service Tools
STDStandard
STJCold-Start Fuel Injection
SWSwitch
SYSSystem
T/ATransaxle
TACHTachometer
TBIThrottle Body Electronic Fuel Injection
TCTurbocharger
TCCSTOYOTA Computer-Controlled System
TCVTiming Control Valve
TDCTop Dead Center
Page 1444 of 1897
- INTRODUCTIONTERMS
IN-39
39 Author: Date:
2001 AVALON (RM808U) TEMP.
Temperature
TEMSTOYOTA Electronic Modulated Suspension
TISTotal Information System For Vehicle Development
T/MTransmission
TMCTOYOTA Motor Corporation
TMMKTOYOTA Motor Manufacturing Kentucky, Inc.
TRACTraction Control System
TURBOTurbocharge
U/DUnderdrive
U/SUndersize
VCVVacuum Control Valve
VENTVentilator
VINVehicle Identification Number
VPSVariable Power Steering
VSCVehicle Skid Control
VSVVacuum Switching Valve
VTVVacuum Transmitting Valve
w/With
WGNWagon
W/HWire Harness
w/oWithout
1stFirst
2ndSecond
2WDTwo Wheel Drive Vehicle (4x2)
4WDFour Wheel Drive Vehicle (4x4)
Page 1740 of 1897
RS0L5-01
AB0152
SST
AB0158
SSTBattery
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS-17
1537 Author: Date:
2001 AVALON (RM808U)
DISPOSAL
HINT:
When scrapping vehicle equipped with an SRS or disposing of
a steering wheel pad (with airbag), always first deploy the air-
bag in accordance with the procedure described below. If any
abnormality occurs with the airbag deployment, contact the
SERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.
CAUTION:
Never dispose of a steering wheel pad which has an
undeployed airbag.
The airbag produces a sizeable exploding sound
when it deploys, so perform the operation out-of-
doors and where it will not create a nuisance to
nearby residents.
When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool). Perform the op-
eration in a place away from electrical noise.
SST 09082-00700
When deploying an airbag, perform the operation at
least 10 m (33 ft) away from the steering wheel pad.
The steering wheel pad is very hot when the airbag is
deployed, so leave it alone for at least 30 minutes af-
ter deployment.
Use gloves and safety glasses when handling a steer-
ing wheel pad with the deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a steering wheel pad with
the deployed airbag.
1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-
HICLE
HINT:
Have a battery ready as the power source to deploy the airbag.
Page 1745 of 1897
H11895
SST
R13763
10 m (33 ft) or more
H00401Weight
X Y
Y RS-22
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
1542 Author: Date:
2001 AVALON (RM808U)
(e) Install the SST.
CAUTION:
Place the disc wheel on the level ground.
(1) Connect the connector of the SST to the steering
wheel pad connector.
SST 09082-00700, 09082-00760
NOTICE:
To avoid damaging the SST connector and wire harness,
do not lock the secondary lock of the twin lock. Also, se-
cure some slack for the SST wire harness inside the disc
wheel.
(2) Move the SST to at least 10 m (33 ft) away from the
steering wheel pad tied down on the disc wheel.
(f) Cover the steering wheel pad with a cardboard box or
tires.
Covering method using a cardboard box:
Cover the steering wheel pad with the cardboard
box and weight the cardboard box down in 4 places
with at least 190 N (20 kg, 44 lb).
Size of cardboard box:
Must exceed the following dimensions:
X = 460 mm (18.11 in.)
Y = 650 mm (25.59 in.)
NOTICE:
When dimension Y of the cardboard box exceeds the
diameter of the disc wheel with tire to which the steer-
ing wheel pad is tied, X should be the following size.
X = 460 mm (18.11 in.) + width of tire
If a cardboard box smaller than the specified size is
used, the cardboard box will be broken by the shock
from the airbag deployment.
Page 1746 of 1897
R04211
Inner Diam.
Tires
(3 or More)Width
R13763
10 m (33 ft) or more
AB0166
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS-23
1543 Author: Date:
2001 AVALON (RM808U)
Covering method using tires:
Place at least 3 tires without disc wheel on top of the
disc wheel with tire to which the steering wheel pad
is tied.
Tire size: Must exceed the following dimensions-
Width: 185 mm (7.87 in.)
Inner diameter: 360 mm (14.17 in.)
CAUTION:
Do not use tires with disc wheels.
NOTICE:
The tires may be marked by the airbag deployment, so use
the redundant tires.
(g) Deploy the airbag.
(1) Connect the SST red clip to the battery positive (+)
terminal and the black clip to the battery negative
(-) terminal.
(2) Check that no one is within 10 m (33 ft) area around
the disc wheel which the steering wheel pad is tied
to.
(3) Press the SST activation switch and deploy the air-
bag.
HINT:
The airbag deploys simultaneously as the LED of the SST ac-
tivation switch lights up.
(h) Dispose of the steering wheel pad (with airbag).
CAUTION:
The steering wheel pad is very hot when the airbag is
deployed, so leave it alone for at least 30 minutes af-
ter deployment.
Use gloves and safety glasses when handling a steer-
ing wheel pad with the deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a steering wheel pad with
the deployed airbag.
(1) Remove the steering wheel pad from the disc
wheel.
(2) Place the steering wheel pad in a vinyl bag, tie the
end tightly and dispose of it in the same way as oth-
er general parts disposal.