2001 TOYOTA AVALON parking brake

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-671
827 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Check parking brake switch (See page BE-53).
NG Replace the parking brake switch.
OK
2 Check wireharness and connector between parking brake switch and body ECU.
(See page IN-30)
NG Repair or replace wireharness or connector.
OK
Proceed to next circuit inspection shown on
problem symptoms table.
(See page DI-622)

- DIAGNOSTICSBODY CONTROL SYSTEM
DI-623
779 Author
: Date
:
2001 AVALON (RM808U)
HEADLIGHT AND TAILLIGHT SYSTEM (CANADA):
SymptomSuspect AreaSee page
Only one side headlight does not light.
1. Headlight bulb
2. HEAD LWR (LH, RH) fuse
3. Wire harness-
BE-9
IN-30
Headlight does not light.
1. Headlight bulb
2. Headlight control relay circuit
3. Light control switch circuit
4. Wire harness-
DI-635
DI-631
IN-30
ºLo-Beamº does not light.
1. Headlight bulb
2. HEAD LWR (LH, RH) fuse
3. Headlight control relay circuit
4. Headlight dimmer switch
5. Wire harness-
BE-9
DI-635
DI-631
IN-30
ºHi-Beamº does not light.
1. Headlight bulb
2. HEAD UPR (LH, RH) fuse
3. DRL fuse
4. D.R.L. relay No.2, 3 and 4 relay circuit
5. Headlight dimmer switch
6. Wire harness-
BE-9
BE-9
DI-668
DI-631
IN-30
ºFlashº does not light.
1. Headlight bulb
2. HEAD UPR (LH, RH) fuse
3. DRL fuse (R/B No.7)
4. D.R.L. relay No.2, 3 and 4 relay circuit
5. Headlight dimmer switch
6. Wire harness-
BE-9
BE-9
DI-668
DI-631
IN-30
Headlight does not light with engine running and light control SW
OFF.
1. DOME fuse
2. GAUGE fuse
3. DRL fuse
4. Parking brake switch circuit
5. Generator
6. Wire harnessBE-9
BE-9
BE-9
DI-670
CH-9
IN-30
Only one side taillight does not light.1. Bulb
2. Wire harness-
IN-30
Taillight does not light.
1. TAIL fuse
2. Taillight control relay circuit
3. Light control switch circuit
4. Body ECU
5. Wire harnessBE-9
DI-633
DI-631
IN-30
IN-30
Rear Combination light does not light.
1. Taillight bulb
2. Light failure sensor
3. Wire harness-
BE-53
IN-30
AUTO TURN OFF SYSTEM:
SymptomSuspect AreaSee page
ºAuto turn-off systemº does not operate.
1. Drivers door courtesy switch circuit
2. Driver door ECU
3. Multiplex communication circuit
4. Body ECUDI-639
DI-676
DI-718
IN-30

DI-620
- DIAGNOSTICSBODY CONTROL SYSTEM
776 Author
: Date
:
2001 AVALON (RM808U) B4-7 e B5-14
GRWBWi l d l k i i ti i itB4 7 e B5 14
(PRG e GND1)G-R e W-BWireless door lock receiver communication circuit-
B4-8 e B5-14YRWBR l ft id i d DOWN tiBl 1VB4 8 e B5 14
(RLD e GND1)Y-R e W-BRear left side power window DOWN operationBelow 1 V
B4-9 e B5-14
(MPX2 e GND1)G-W e W-BMultiplex communication circuit-
B4-10 e B5-14RBWBDaytime running light system is operatingBelow 1 VB4 10 e B5 14
(DRL e GND1)R-B e W-BConstant10 - 14 V
B4-1 1 e Body ground
(GND2 e Body ground)W-BConstantBelow 1 V
B4 13B5 14Headlight control switch position is HI beam or FLASHBelow 1 VB4-13 e B5-14
(HU e GND1)B-R e W-BHeadlight control switch position is except HI beam or
FLASH10 - 14 V
B4-14 e B5-14PWBLight control switch TAIL or HEADBelow 2 VB4 14 e B5 14
(TAIL e GND1)P e W-BLight control switch OFF10 - 14 V
B14-15 e B5-14YGWBParking brake is usedBelow 1 VB14 15 e B5 14
(PKB e GND1)Y-G e W-BParking brake is not used10 - 14 V
B4-16 e B5-14RWWBWith seat belt ONBelow 1 VB4 16 e B5 14
(DBKL e GND1)R-W e W-BNo seat belt ON10 - 14 V
B4-17 e B5-14RYWBKey is insertedBelow 1 VB4 17 e B5 14
(KSW e GND1)R-Y e W-BKey is not inserted 10 - 14 V
B4-18 e B5-14LG RWBDLC3 i ti i itB4 18 e B5 14
(TC e GND1)LG-R e W-BDLC3 communication circuit-
B4-19 e B5-14LWBNormal condition2 - 3.5 VB4 19 e B5 14
(GSW e GND1)L e W-BWhen wire harness is open4 - 6 V
B4-20 e B5-14PLWBBuzzer sound10 - 14 VB4 20 e B5 14
(BZ e GND1)P-L e W-BBuzzer does not soundBelow 1 V
B4-21 e B5-14LWWBWireless door lock control system is operatedBelow 1 VB4 21 e B5 14
(RDA e GND1)L-W e W-BWireless door lock control system is not operated10 - 14 V
B4-22 e B5-14
(RLU e GND1)G-Y e W-BRear left side power window UP operationBelow 1 V
B4-23 e B5-14
(MPX1 e GND1)V e W-BMultiplex communication circuit-
B4-24 e B5-14
(B e GND1)W-G e W-BConstant10 - 14 V
B4-25 e B5-14LWBLuggage compartment door opener switch is operatedBelow 1 VB4 25 e B5 14
(TR+ e GND1)L e W-BLuggage compartment door opener switch is not operated10 - 14 V
B5-1 e B5-14
(ACTD e GND1)L-W e W-BDriver door lock is operating10 - 14 V
B5-2 e B5-15
(ACT+ e ACT-)L-R e LDoor lock is operating10 - 14 V
B5-3 e B5-14OWBDriver door closed10 - 14 VB5 3 e B5 14
(PCTY e GND1)O e W-BDriver door openedBelow 1 V
B5-4 e B5-14WRWBPassenger seat switch OFF10 - 14 VB5 4 e B5 14
(SEAT e GND1)W-R e W-BPassenger seat switch ONBelow 1 V
B5-5 e B5-14LOWBRear door lockedBelow 2 VB5 5 e B5 14
(LSW e GND1)L-O e W-BRear door unlocked10 - 14 V

IN0253
WRONG CORRECT
IN0252
WRONG CORRECT IN-6
- INTRODUCTIONREPAIR INSTRUCTIONS
6 Author
: Date
:
2001 AVALON (RM808U)
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN-8).
Cancel the parking brake on the level place and
shift the transmission in Neutral (or N position).
When jacking up the front wheels of the vehicle at
first place stoppers behind the rear wheels.
When jacking up the rear wheels of the vehicle at
first place stoppers before the front wheels.
When either the front or rear wheels only should be
jacked up, set rigid racks and place stoppers in front
and behind the other wheels on the ground.
After the vehicle is jacked up, be sure to support it
on rigid racks . It is extremely dangerous to do any
work on a vehicle raised on a jack alone, even for
a small job that can be finished quickly.
(l) Observe the following precautions to avoid damage to the
following parts:
(1) Do not open the cover or case of the ECU unless
absolutely necessary. (If the IC terminals are
touched, the IC may be destroyed by static electric-
ity.)
(2) To disconnect vacuum hoses, pull off the end, not
the middle of the hose.
(3) To pull apart electrical connectors, pull on the con-
nector itself, not the wires.
(4) Be careful not to drop electrical components, such
as sensors or relays. If they are dropped on a hard
floor, they should be replaced and not reused.
(5) When steam cleaning an engine, protect the elec-
tronic components, air filter and emission-related
components from water.
(6) Never use an impact wrench to remove or install
temperature switches or temperature sensors.

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

MA0676B00995
MA01P-02
B08916
B09029
MA-8
- MAINTENANCEBODY
50 Author
: Date
:
2001 AVALON (RM808U)
BODY
INSPECTION
1. TIGHTEN BOLTS AND NUTS ON CHASSIS AND BODY
Tighten the following parts:

Front seat mount bolts
Torque: 37 N´m (375 kgf´cm, 27 ft´lbf)

Front suspension member-to-body mounting bolts
Torque: 181 N´m (1,850 kgf´cm, 134 ft´lbf)

Rear suspension member-to-body mounting nuts
Torque: 51 N´m (520 kgf´cm, 38 ft´lbf)
2. FINAL INSPECTION
(a) Check the operation of the body parts:

Hood:
Auxiliary catch operates properly
Hood locks securely when closed

Front and rear doors:
Door lock operates properly
Doors close properly

Luggage compartment door:
Door lock operates properly

Seats:
Seat adjusts easily and locks securely in any posi-
tion
Front seat back locks securely in any position
Folding-down rear seat backs lock securely
(b) Road test:

Check the engine and chassis for abnormal noises.

Check that the vehicle dose not wander or pull to
one side.

Check that the brakes work properly and do not
drag.

Do setting of the parking brake shoes and drum.
(c) Be sure to deliver a clean car and especially check:

Steering wheel

Shift lever knob

All switch knobs

Door handles

Seats

B00632
MA01N-01
MA-6
- MAINTENANCEBRAKE
48 Author
: Date
:
2001 AVALON (RM808U)
BRAKE
INSPECTION
1. INSPECT BRAKE LINE PIPES AND HOSES
HINT:
Check in a well lighted area. Check the entire circumference
and length of the brake hoses using a mirror as required. Turn
the front wheels fully right or left before checking the front brake.
(a) Check all brake lines and hoses for:

Damage

Wear

Deformation

Cracks

Corrosion

Leaks

Bends

Twists
(b) Check all clamps for tightness and connections for leak-
age.
(c) Check that the hoses and lines are clear of sharp edges,
moving parts and the exhaust system.
(d) Check that the lines installed in grommets pass through
the center of the grommets.
2. INSPECT FRONT BRAKE PADS AND DISCS
(See page BR-26)
3. INSPECT REAR BRAKE PADS AND DISCS
(See page BR-35)
4. INSPECT PARKING BRAKE LININGS AND DRUMS
(See page BR-45)

- MAINTENANCEINSIDE VEHICLE
MA-3
45 Author
: Date
:
2001 AVALON (RM808U)
13. ACCELERATOR PEDAL
Check the pedal for smooth operation and uneven pedal effort or catching.
14. BRAKE PEDAL (See page BR-6)
(a) Check the pedal for smooth operation.
(b) Check that the pedal has the proper reserve distance and free-play.
(c) Check the brake booster function.
15. BRAKES
At a safe place, check that the brakes do not pull to one side when applied.
16. PARKING BRAKE (See page BR-9)
(a) Check that the parking brake pedal has the proper travel.
(b) On a safe incline, check that the vehicle is held securely with only the parking brake applied.
17. AUTOMATIC TRANSMISSION ºPARKº MECHANISM
(a) Check the lock release mechanism of the selector lever for proper and smooth operation.
(b) On a safe incline, check that the vehicle is held securely with the selector lever in ºPº position and all
brakes released.