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
- 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
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
AB0163
Wire Harness
Diameter
Stripped Wire Harness Section
H11903
H11904
Width
Inner
diam.
- SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
RS-35
1555 Author: Date:
2001 AVALON (RM808U)
(b) Using a service-purpose wire harness, tie down the front
passenger airbag assembly to the tire.
Wire harness: Stripped wire harness section
1.25 mm
2
or more (0.0019 in.2 or more)
CAUTION:
If the front passenger airbag assembly is tied down with
too thin wire harness, it may snap. This is highly danger-
ous. Always use a wire harness which is at least 1.25 mm
2
(0.0019 in2.).
HINT:
To calculate the square of the stripped wire harness section:
Square = 3.14 X (Diameter)
2 divided by 4
(1) Pass the wire harness though the installation holes,
as shown in the illustration.
(2) Position the front passenger airbag assembly in-
side the tire with the airbag deployment side facing
inside.
Tire size: Must exceed the following dimensions-
Width: 185 mm (7.28 in.)
Inner diameter: 360 mm (14.17 in.)
CAUTION:
Make sure that the wire harness is tight. It is very dan-
gerous if looseness in the wire harness results in the
front passenger airbag assembly coming free due to
the shock from the airbag deploying.
Always tie down the front passenger airbag assembly
with the airbag deployment side facing inside.
NOTICE:
The tire will be marked by the airbag deployment, so when
disposing of the airbag use a redundant tire.
H11966
H11967
H11968
AB0158
SSTBattery RS-48
- SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY (Power Adjuster Type)
1568 Author: Date:
2001 AVALON (RM808U)
(1) Install the 2 nuts to the side airbag assembly.
(2) Wind the wire harness around the stud bolts of the
side airbag assembly as shown in the illustration.
(3) Position the side airbag assembly inside the tire
with the airbag deployment direction facing inside.
Tire size: Must exceed the following dimensions-
Width: 185 mm (7.28 in.)
Inner diameter: 360 mm (14.17 in.)
CAUTION:
Make sure the wire harness is tight. It is very danger-
ous when a loose wire harness results in the side air-
bag assembly coming free due to the shock from the
airbag deploying.
Always tie down the side airbag assembly with the
airbag deployment side facing inside.
NOTICE:
The tire will be marked by the airbag deployment, so when
disposing of the airbag use a redundant tire.
(d) Check functioning of the SST (See step 1-(a) on page
RS-17).
SST 09082-00700
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.
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.
SA1DO-03
R03031
W02620
Front
R07928
SA-2
- SUSPENSION AND AXLETIRE AND WHEEL
1336 Author: Date:
2001 AVALON (RM808U)
TIRE AND WHEEL
INSPECTION
1. INSPECT TIRE
(a) Check the tires for wear and proper inflation pressure.
Cold tire inflation pressure:
Tire sizeFront, rear
kPa (kgf/cm2, psi)
P205/65R15 92H210 (2.1, 31)
P205/60R16 91H220 (2.2, 32)
(b) Check the tire runout.
Tire runout: 1.0 mm (0.039 in.) or less
2. ROTATING TIRES
HINT:
See the illustration for where to rotate each tire when you in-
clude the spare tire in the rotation and when you do not.
3. INSPECT WHEEL BALANCE
(a) Check and adjust the Off-the-car balance.
(b) If necessary, check and adjust the On-the-car balance.
Imbalance after adjustment: 8.0 g (0.018 lb) or less