2001 TOYOTA AVALON brake sensor

Water Bypass Hose
A10522
PS Pressure Tube
Throttle Body Bracket
Engine WireThrottle Position
Sensor Connector
Vacuum Hose Brake Booster
39 (400,29)
IAC Valve
Connector
Accelerator Cable
Purge Hose
Hose Vacuum

Gasket
VSV Connector for No.2 ACIS
Engine Coolant
Reservoir Hose
43 (440,32)
ECT Sender
Gauge Connector
ECT Sensor
Connector
Grand Strap
Connector
15 (150,11)
Water Outlet
15 (150,11)
Water Bypass
Hose
Upper Radiator
HoseFuel Inlet Hose
Injector Connector Intake Manifold
Assembly

Retainer
Heater Hose

GasketIgnition Coil
Connector

Non-reusable part: Specified torque
N´m (kgf´cm, ft´lbf)
19.5 (200, 14)
No.1 Engine
Hanger
VSV Connector for
EVAP
Ground Cable
PCV Hose Ground Cable
Air Intake Chamber
Assembly

Gasket
Spark PlugIgnition Coil
Ground Strap
DLC1
Gasket
Fuel Hose Clamp
VSV Connector
for No.1 ACIS
Throttle Cable
- ENGINE MECHANICALCYLINDER HEAD
EM-27
1011 Author
: Date
:
2001 AVALON (RM808U)

DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)Confirmation
of SymptomsDiagnostic Trouble
Code CheckProblem Condition
Diagnostic Trouble
Code DisplayProblem symptoms
existSame diagnostic
trouble code is
displayedProblem is still occurring in the diagnostic
circuit
Normal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem)
No problem
symptoms existThe problem occurred in the diagnostic
circuit in the past
Normal Code DisplayProblem symptoms
existNormal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit
No problem
symptoms existNormal code is
displayedThe problem occurred in a place other
than in the diagnostic circuit in the past
IN-22- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
22 Author
: Date
:
2001 AVALON (RM808U)
2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the AVALON fulfills various functions. The first function is the Diagnostic Trouble
Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU memory
at the time of occurrence, to be output by the technician during troubleshooting. Another function is the Input
Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the AVALON.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Diagnostic Test
Mode (Active Test)
Engine
Automatic Transaxle
Anti-Lock Brake System With Electronic Brake Force Distribution (EBD)
ABS With EBD & BA & TRAC & VSC System
Supplemental Restraint System
Cruise Control System
Engine Immobilizer System
Multiplex Communication System
Air Conditioning System (with Check
Mode)
 (with Check
Mode)











In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.

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.

IN04Q-08
- INTRODUCTIONTERMS
IN-35
35 Author
: Date
:
2001 AVALON (RM808U)
TERMS
ABBREVIATIONS USED IN THIS MANUAL
AbbreviationsMeaning
ABSAnti-Lock Brake System
ACAlternating Current
ACCAccessory
ACISAcoustic Control Induction System
ACSDAutomatic Cold Start Device
A.D.D.Automatic Disconnecting Differential
A/FAir-Fuel Ratio
AHCActive Height Control Suspension
ALRAutomatic Locking Retractor
ALTAlternator
AMPAmplifier
ANTAntenna
APPROX.Approximately
A/TAutomatic Transmission (Transaxle)
AT FAutomatic Transmission Fluid
AUTOAutomatic
AUXAuxiliary
AV GAverage
AV SAdaptive Variable Suspension
BABrake Assist
BACSBoost Altitude Compensation System
BATBattery
BDCBottom Dead Center
B/LBi-Level
B/SBore-Stroke Ratio
BTDCBefore Top Dead Center
BVSVBimetallic Vacuum Switching Valve
Calif.California
CBCircuit Breaker
CCoCatalytic Converter For Oxidation
CDCompact Disc
CFCornering Force
CGCenter Of Gravity
CHChannel
COMB.Combination
CPECoupe
CPSCombustion Pressure Sensor
CPUCentral Processing Unit
CRSChild Restraint System
CTRCenter
C/VCheck Valve
CVControl Valve

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

SS0FT-05
- SERVICE SPECIFICATIONSBRAKE
SS-31
147 Author
: Date
:
2001 AVALON (RM808U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Master cylinder x Piston stopper bolt w/o VSC101007
Master cylinder x Reservoir1.717.515.2 in.´lbf
Master cylinder x Brake booster131309
Brake line union nut 10 mm
12 mm15
20155
20011
15
Brake booster clevis lock nut2526019
Brake booster x Pedal bracket131309
Brake pedal x Pedal bracket3940029
Front brake caliper installation bolt3435025
Bleeder plug8.38574 in.´lbf
Front brake torque plate x Steering knuckle1071,09079
Front brake caliper x Flexible hose2930022
Flexible hose x Shock absorber bracket2930022
Rear brake caliper installation bolt3435025
Rear brake caliper x Flexible hose2930022
Rear brake torque plate x Rear axle carrier4747534
Parking brake pedal bracket x Body6162045
ABS actuator x ABS actuator bracket131309
ABS actuator x ECU3.03127 in.´lbf
ABS & VSC actuator x Actuator bracket131309
ABS (& VSC) actuator bracket x Body1919514
Front speed sensor installation bolt8.08271 in.´lbf
Rear speed sensor installation bolt8.08271 in.´lbf
ABS speed sensor harness clamp bolt5.45548 in.´lbf
Precharge pump x Precharge pump bracket Bolt
Nut8.0
1382
13071 in.´lbf
9
Precharge pump brackt x Body1919514
Precharge pump x Master cylinder pressure sensor8183060

SS04X-06
SS-28
- SERVICE SPECIFICATIONSSUSPENSION AND AXLE
144 Author
: Date
:
2001 AVALON (RM808U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
FRONT AXLE
Hub nut1031,05076
Tie rod end lock nut7475054
Steering knuckle x Shock absorber2112,150156
Steering knuckle x Brake caliper1071,09079
Steering knuckle x Tie rod end4950036
Axle hub x Drive shaft2943,000217
Lower ball joint x Lower suspension arm1271,30094
Lower ball joint x Steering knuckle1231,25090
Steering knuckle x Dust cover8.38574 in.´lbf
ABS speed sensor set bolt8.08271 in.´lbf
FRONT DRIVE SHAFT
Drive shaft center bearing lock bolt3233024
FRONT SUSPENSION
Suspension support x Body8082059
Suspension support x Piston rod4950036
Flexible hose and ABS speed sensor wire harness x Shock absorber2930022
Lower suspension arm set bolt2062,100152
Stabilizer bar bracket x Suspension member1919514
Stabilizer bar link set nut3940029
REAR AXLE
Hub nut1031,05076
Brake caliper x Rear axle carrier4747534
Axle hub set bolt8082059
Shock absorber x Rear axle carrier New nut
Reused nut (Apply engine oil to the threads.)255
1962,600
2,000188
145
No. 1, No. 2 lower suspension arm x Rear axle carrier1811,850134
Strut rod x Rear axle carrier11 31,15083
ABS speed sensor set bolt8.08271 in.´lbf
REAR SUSPENSION
ABS speed sensor wire harness x Shock absorber5.45548 in.´lbf
Flexible hose x Shock absorber2930022
Rear seat belt set bolt4142030
Rear seatback set bolt1818513
Suspension support x Body3940029
Suspension support x Piston rod4950036
Center exhaust pipe set bolt4344032
Parking brake cable set bolt5.45548 in.´lbf
No. 2 lower suspension arm lock nut5657041
No. 1, No. 2 lower suspension arm x Suspension member1811,850134
Strut rod x Body11 31,15083
Suspension member x Body5152038
Suspension member lower stopper x Body3839028

SF0ZZ-02
B09088

Gasket
Throttle Body
Water Bypass
HoseAir Assist
Hose
19.5 (200, 14)
19.5 (200, 14)
Air Cleaner Hose
w/ Resonator Vacuum Hose
Accelerator CableAir Intake
Chamber Stay
V-Bank Cover
IAC Valve
ConnectorThrottle
Position
Sensor
Connector
: Specified torque

Non-reusable part
N´m (kgf´cm, ft´lbf)
Vacuum Hose
Brake Booster
Vacuum Hose No.1
Fuel Vapor
Feed Hose
Throttle Cable
SF-54
- SFIACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)
1163 Author
: Date
:
2001 AVALON (RM808U)
COMPONENTS