TOYOTA AVALON 2001 Service Repair Manual

BR0L8-03
F09721
Anti-squeal Shim
Inner Anti-squeal Shim
Outer Pad Pad Support Plate
Disc brake grease
N´m (kgf´cm, ft´lbf): Specified torque
Inner Anti-squeal Shim
Anti-squeal Shim
Pad Support PlateInner Pad
34 (350, 35)
BR-34
- BRAKEREAR BRAKE PAD
1433 Author
: Date
:
2001 AVALON (RM808U)
REAR BRAKE PAD
COMPONENTS

BR0L9-03
F09722
F09723
R10387
- BRAKEREAR BRAKE PAD
BR-35
1434 Author
: Date
:
2001 AVALON (RM808U)
REPLACEMENT
1. REMOVE REAR WHEEL
2. INSPECT PAD LINING THICKNESS
Check the pad's thickness through the caliper inspection hole
and replace pads if not within specification.
Minimum thickness: 1.0 mm (0.039 in.)
3. LIFT UP CALIPER
(a) Remove the bottom side installation bolt.
(b) Lift up and suspend it securely.
HINT:
Do not disconnect the flexible hose from the caliper.
4. REMOVE 2 BRAKE PADS WITH 4 ANTI- SQUEAL
SHIMS
5. REMOVE 4 PAD SUPPORT PLATES
NOTICE:
The support plates can be used again provided that they
have sufficient rebound, no deformation, cracks or wear,
and have had all rust, dirt and foreign particles cleaned off.
6. CHECK DISC THICKNESS AND RUNOUT
(See page BR-40)
7. INSTALL PAD SUPPORT PLATES
Install the 4 pad support plates.
8. INSTALL NEW PADS
NOTICE:
When replacing worn pads, the anti-squeal shims must be
replaced together with the pads.
(a) Apply disc brake grease to both side of the inner
anti-squeal shims (See page BR-37).
(b) Install the 2 anti-squeal shims on each pad.
(c) Install 2 pads with the pad wear indicator plates facing
downward.
NOTICE:
There should be no oil or grease adhering to the friction
surfaces of the pads or the disc.
9. INSTALL CALIPER
(a) Draw out a small amount of brake fluid from the reservoir.
(b) Press in the piston with a hammer handle or similar imple-
ment.
HINT:
If the piston is difficult to push in, loosen the bleeder plug and
push in the piston while letting some brake fluid escape.

F09723
BR-36
- BRAKEREAR BRAKE PAD
1435 Author
: Date
:
2001 AVALON (RM808U)
(c) Install the caliper.
(d) Install the installation bolt.
Torque: 34 N´m (350 kgf´cm, 25 ft´lbf)
10. INSTALL REAR WHEEL
Torque: 103 N´m (1,050 kgf´cm, 76 ft´lbf)
11. DEPRESS BRAKE PEDAL SEVERAL TIMES
12. CHECK THAT FLUID LEVEL IS AT MAX LINE

BR0LX-03
F09740
Rear Speed Sensor
N´m (kgf´cm, ft´lbf) : Specified torque
5.4 (55 48 in.´lbf)
8.0 (82, 71 in.´lbf)
BR-62
- BRAKEREAR SPEED SENSOR
1461 Author
: Date
:
2001 AVALON (RM808U)
REAR SPEED SENSOR
COMPONENTS

BR0LZ-04
BR-64
- BRAKEREAR SPEED SENSOR
1463 Author
: Date
:
2001 AVALON (RM808U)
INSTALLATION
Installation is in the reverse order of removal (See page BR-63).
AFTER INSTALLATION, CHECK SPEED SENSOR SIGNAL (See page DI-252 or DI-212)

BR0LY-03
R00330
R00331
- BRAKEREAR SPEED SENSOR
BR-63
1462 Author
: Date
:
2001 AVALON (RM808U)
REMOVAL
1. DISCONNECT SPEED SENSOR CONNECTOR
(a) Remove the seat cushion and seatback.
(b) Disconnect the speed sensor connector, and pull out the
sensor wire harness with the grommet.
2. REMOVE SPEED SENSOR
(a) Remove the bolt and speed sensor from the axle carrier.
Torque: 8.0 N´m (82 kgf´cm, 71 in.´lbf)
(b) Remove the 2 clamp bolts holding the sensor wire har-
ness to the body and shock absorber.
Torque: 5.4 N´m (55 kgf´cm, 48 in.´lbf)

BR0KG-05
BR-2
- BRAKETROUBLESHOOTING
1401 Author
: Date
:
2001 AVALON (RM808U)
TROUBLESHOOTING
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Lower pedal or spongy pedal
5. Fluid leaks for brake system
6. Air in brake system
7. Piston seals (Worn or damaged)
8. Master cylinder (Faulty)
9. Booster push rod (Out of adjustment)DI-249
DI-346
BR-4
BR-28
BR-37
BR-13
BR-24
Brake drag
1. Brake pedal freeplay (Minimal)
2. Parking brake pedal travel (Out of adjustment)
3. Parking brake wire (Sticking)
4. Rear brake shoe clearance (Out of adjustment)
5. Pad (Cracked or distorted)
6. Piston (Stuck)
7. Piston (Frozen)
8. Tension or return spring (Faulty)
9. Booster push rod (Out of adjustment)
10.Vacuum leaks for booster system
11. Master cylinder (Faulty)BR-6
BR-9
-
BR-46
BR-25
BR-34
BR-28
BR-37
BR-28
BR-37
BR-43
BR-24
BR-22
BR-13
Brake pull
1. Piston (Stuck)
2. Pad (Oily)
3. Piston (Frozen)
4. Disc (Scored)
5. Pad (Cracked or distorted)BR-28
BR-37
BR-25
BR-34
BR-28
BR-37
BR-28
BR-37
BR-25
BR-34
Hard pedal but brake inefficient
1. Fluid leaks for brake system
2. Air in brake system
3. Piston (Stuck)
4. Pad (Cracked or distorted)
5. Pad (Oily)
6. Pad (Glazed)
7. Disc (Scored)
8. Booster push rod (Out of adjustment)
9. Vacuum leaks for booster systemDI-249
DI-346
BR-4
BR-28
BR-37
BR-25
BR-34
BR-25
BR-34
BR-25
BR-34
BR-28
BR-37
BR-24
BR-22

- BRAKETROUBLESHOOTING
BR-3
1402 Author
: Date
:
2001 AVALON (RM808U)Symptom
Suspect AreaSee page
Noise from brake
1. Pad (Cracked or distorted)
2. Installation bolt (Loosen)
3. Disc (Scored)
4. Pad support plate (Loosen)
5. Sliding pin (Worn)
6. Pad (Dirty)
7. Pad (Glazed)
8. Tension or return spring (Faulty)
9. Anti-squeal shim (Damage)
10.Hold-down spring (Damage)BR-25
BR-34
BR-28
BR-37
BR-28
BR-37
BR-25
BR-34
BR-28
BR-37
BR-25
BR-34
BR-25
BR-34
BR-43
BR-25
BR-34
BR-43

CH03U-03
Z11577
Except Maintenance-Free Battery
Z11556
Maintenance-Free Battery
Voltmeter
- CHARGINGCHARGING SYSTEM
CH-1
1274 Author
: Date
:
2001 AVALON (RM808U)
CHARGING SYSTEM
ON-VEHICLE INSPECTION
CAUTION:

Check that the battery cables are connected to the
correct terminals.

Disconnect the battery cables when the battery is giv-
en a quick charge.

Do not perform tests with a high voltage insulation re-
sistance tester.

Never disconnect the battery while the engine is run-
ning.
1. CHECK BATTERY ELECTROLYTE LEVEL
Check the electrolyte quantity of each cell.
Maintenance-Free Battery:
If under the lower level, replace the battery (or add distilled wa-
ter if possible). Check the charging system.
Except Maintenance-Free Battery:
If under the lower level, add distilled water.
2. Except Maintenance-Free Battery:
CHECK BATTERY SPECIFIC GRAVITY
Check the specific gravity of each cell.
Standard specific gravity: 1.25 - 1.29 at 20°C (68°F)
If the specific gravity is less than specification, charge the bat-
tery.
3. Maintenance-Free Battery:
CHECK BATTERY VOLTAGE
(a) After having driven the vehicle and in the case that 20
minutes have not passed after having stopped the en-
gine, turn the ignition switch ON and turn on the electrical
system (headlight, blower motor, rear defogger etc.) for
60 seconds to remove the surface charge.
(b) Turn the ignition switch OFF and turn off the electrical sys-
tems.
(c) Measure the battery voltage between the negative (-)
and positive (+) terminals of the battery.
Standard voltage: 12.5 - 12.9 V at 20°C (68°F)
If the voltage is less than specification, charge the battery.

Z18811
Blue White Red
OK Charging
NecessaryInsufficient
Water Maintenance-Free Battery
Type A
GREE NEYEDARK EYECLEAR EYE or
CHARGED DISCHARGEDADD WATER
Type B
LIGHT YELLOW
P13121
Z00038
DENSO Borroughs
P13120
CORRECT
WRONG CH-2
- CHARGINGCHARGING SYSTEM
1275 Author
: Date
:
2001 AVALON (RM808U)
HINT:
Check the indicator as shown in illustration.
4. CHECK BATTERY TERMINALS, FUSIBLE LINK AND
FUSES
(a) Check that the battery terminals are not loose or cor-
roded.
(b) Check the fusible link and fuses for continuity.
5. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
If any defect has been found, replace the drive belt.
HINT:
Cracks on the rib side of a belt are considered acceptable. If the
belt has chunks missing from the ribs, it should be replaced.
(b) Using a belt tension gauge, measure the drive belt ten-
sion.
Belt tension gauge:
DENSO BTG-20 (95506-00020)
Borroughs No. BT-33-73F
Drive belt tension:
New belt175 ± 5 lbf
Used belt115 ± 20 lbf
If the belt tension is not as specified, adjust it.
HINT:

ºNew beltº refers to a belt which has been used less than
5 minutes on a running engine.

ºUsed beltº refers to a belt which has been used on a run-
ning engine for 5 minutes or more.

After installing a belt, check that it fits properly in the
ribbed grooves.

Check with your hand to confirm that the belt has not
slipped out of the groove on the bottom of the pulley.