2001 TOYOTA PRIUS tire pressure

ENGINE ± 1NZ-FXE ENGINE
182EG34
Air CleanerIntake Air Chamber
VSV
(for EVAP)
ECM
Fresh Air Line
Purge Line
EVAP Line
VSV
(for Purge Flow Switching Valve)
Charcoal Canister
Recircle Line
Vapor Pressure
Sensor
VSV (for Canister Closed Valve)77
9. Evaporative Emission Control
General
A vacuum system has been newly adopted to detect leaks in the evaporative emission control system. This
vacuum system detects leaks by forcefully introducing the purge vacuum into the entire system and moni-
toring the changes in the pressure.
In order to detect evaporative emission leaks from the vapor reducing fuel tank, a density method has been
adopted. This system uses an oxygen sensor to measure the HC density in the exhaust gases in order to detect
leaks.
It consists of the following main conponents:

A VSV (for canister closed valve) has been provided between the fresh air line and the fuel tank.

The VSV (for purge flow switching valve) switches the passages from the charcoal canister to the purge
line and from the fuel tank to the purge line.

A vapor pressure sensor has been provided in the fuel tank in order to further ensure the precision of the
vapor pressure sensor.

DTCs (Diagnostic Trouble Codes) have been added. For details on the DTCs (Diagnostic Trouble
Codes), refer to the 2001 Prius Repair Manual (Pub. No.RM778U).

CHASSIS ± BRAKES
182CH55
Speed Sensors
Combination Meter
Speedometer
ABS Warning Light
Brake System Warning
Light
Brake Warning Buzzer
Stop Light Switch
ECM
HV ECU
Inverter
Battery ECU
Brake
ECU
Solenoid Relay
Motor Relay
Brake Actuator
ABS Solenoid
Valves
Switching Solenoid Valve
Linear Solenoid Valve
Master Cylinder Pressure
Sensor
Regulator Pressure Sensor
Front Wheel Pressure Sensor
Rear Wheel Pressure Sensor
Pump Motor
High Pressure Switch
Low Pressure Switch
Reservoir Level Switch
Hydraulic Brake Booster11 5
Brake ECU
1) General
Based on the signals received from the sensors the communication it maintains with the HV ECU, the
brake ECU effects conventional brake control, ABS with EBD control, and regenerative brake coopera-
tive control.
2) Fail Safe
If a malfunction occurs in the brake ECU, in the input signals from the sensors, or in actuator system,
this function prohibits the current from flowing to the brake actuator.
As a result, the solenoids in the brake actuator turn off, enabling the braking force of the hydraulic brake
to take effect. Furthermore, by illuminating the ABS warning light or the brake system warning light,
this function alerts the driver that a malfunction exists in the system.
Only if the regenerative brake system cannot be used, such as in the case of a malfunction in the commu-
nication with the HV ECU, this function switches controls to enable the hydraulic brake to generate the
entire brake force.
3) Warning Light Check Function
The ABS warning light and brake system warning light turns on for about 3 seconds after the ignition
switch is turned on to check the circuit.

CHASSIS ± BRAKES
182CH61
Reservoir Tank
Pump Motor
Pressure Switches
Relief
Valve
Master Cylinder
Pressure
SensorPressure Sensor
SLRSLA
OFF
Stroke Simulator
SS
OFF
Reservoir
Pressure
Sensor
Pressure
Sensor
SRrR
OFF
P & B Valve
Rear Wheel Cylinders Front Wheel CylindersOFF
SMC2 SMC1
SRrH
OFFSFRH
OFF
SFRR
OFFSFLH
OFF
SFLR
OFF
OFF OFF
Accumulator121
3) Fail-Safe Control
If a malfunction occurs in the brake ECU, in the input signals from the sensors, or in the actuator system,
this function prohibits the current from flowing to the brake actuator.
As a result, the solenoids in the brake actuator turn off, enabling the braking force of the hydraulic brake
to take effect. The relief function is provided in order to ensure the proper wheel cylinder hydraulic pres-
sure even if the linear solenoid valve SLA is OFF (closed). Only if the regenerative brake system cannot
be used, such as in the case of a malfunction in the communication with the HV ECU, this function
switches controls to enable the hydraulic brake to generate the entire brake force.

MA02E±02
± MAINTENANCEOUTSIDE VEHICLE
MA±1
54 Author: Date:
2001 PRIUS (RM778U)
OUTSIDE VEHICLE
GENERAL MAINTENANCE
These are maintenance and inspection items which are considered to be the owner's responsibility.
They can be done by the owner or they can have them done at a service shop.
These items include those which should be checked on a daily basis, those which, in most cases, do not
require (special) tools and those which are considered to be reasonable for the owner to do.
Items and procedures for general maintenance are as follows.
1. GENERAL NOTES

Maintenance items may vary from country to country. Check the owner's manual supplement in which
the maintenance schedule is shown.

Every service item in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. TIRES
(a) Check the pressure with a gauge. If necessary, adjust.
(b) Check for cuts, damage or excessive wear.
3. WHEEL NUTS
When checking the tires, check the nuts for looseness or for missing nuts. If necessary, tighten them.
4. TIRE ROTATION
Check the owner's manual supplement in which the maintenance schedule is shown.
5. WINDSHIELD WIPER BLADES
Check for wear or cracks whenever they do not wipe clean. If necessary, replace.
6. FLUID LEAKS
Check underneath for leaking fuel, oil, water or other fluid.
7. DOORS AND ENGINE HOOD
(a) Check that all doors including the trunk lid operate smoothly, and that all latches lock securely.
(b) Check that the engine hood secondary latch secures the hood from opening when the primary latch
is released.

SS13W±06
SS±26
± SERVICE SPECIFICATIONSSUSPENSION AND AXLE
148 Author: Date:
2001 PRIUS (RM778U)
SUSPENSION AND AXLE
SERVICE DATA
Cold tire inflation
pressureTire size: P175/65R14 84S Front
Rear240 kPa (2.4 kgf/cm2, 35 psi)
230 kPa (2.3 kgf/cm2, 33 psi)
Vehicle height
P175/65R14Front*1
Rear*2191 mm (7.52 in.)
239 mm (9.41 in.)
Camber
Right±left error±0°26' ± 45' (±0.43° ± 0.75°)
45' (0.75°) or less
Front wheel
Caster
Right±left error1°02' ± 45' (1.03° ± 0.75°)
45' (0.75°) or less
Front wheel
alignmentSteering axis inclination
Right±left error9°52' ± 45' (9.87° ± 0.75°)
45' (0.75°) or less
Toe±in (total)
Rack end length difference0°06' ± 12' (0.1° ± 0.2°, 1 ± 2 mm, 0.04± 0.08 in.)
1.5 mm (0.059 in.) or less
Wheel angle
Inside wheel
Outside wheel: Reference
42°42' ± 2° (42.70° ± 2°)
35°54' (35.90°)
Rear wheel
Camber
Right±left error±1°30' ± 45' (±0.93° ± 0.75°)
45' (0.75°) or less
Rear wheel
alignmentToe±in (total)0°06' ± 20' (0.1° ± 0.33°)
1 ± 3.0 mm (0.04 ± 0.12 in.)
FtlAxle bearing backlash Maximum0.05 mm (0.0020 in.)Front axleAxle hub deviationMaximum0.07 mm (0.0028 in.)
Front drive shaftDrive shaft standard length LH
RH579.9 ± 5.0 mm (22.831 ± 0.197 in.)
836.9 ± 5.0 mm (32.949 ± 0.197 in.)
Ft iLower suspension arm ball joint turning torque1.0 ± 4.9 N´m (10 ± 50 kgf´cm, 8.7 ± 43 in.´lbf)Front suspensionStabilizer bar link ball joint turning torque0.05 ± 1.0 N´m (0.5 ± 10 kgf´cm, 0.4 ± 8.7 in.´lbf)
RlAxle bearing backlash Maximum0.05 mm (0.0020 in.)Rear axleAxle hub deviationMaximum0.07 mm (0.0028 in.)
*1: Front measuring point
Measure the distance from the ground to the head center of the front side lower suspension arm mounting
bolt.
*2: Rear measuring point
Measure the distance from the ground to the center of the rear axle beam mounting bolt.

SA0CC±10
R03031
R15157
Front
R07928
R14731
Backlash:Deviation: SA±2
± SUSPENSION AND AXLETIRE AND WHEEL
1452 Author: Date:
2001 PRIUS (RM778U)
TIRE AND WHEEL
INSPECTION
1. INSPECT TIRE
(a) Check the tires for wear and proper inflation pressure.
Cold tire inflation pressure:
(Tire size: P175/65R14 84S)
FrontRear
240 kPa (2.4 kgf/cm2, 35 psi)230 kPa (2.3 kgf/cm2, 33 psi)
(b) Using a dial indicator, 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.
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
4. CHECK WHEEL BEARING LOOSENESS
(a) Using a dial indicator, check the backlash near the center
of the axle hub.
Maximum: 0.05 mm (0.0020 in.)
If the backlash exceeds the maximum, replace the bearing.
(b) Using a dial indicator, check the deviation at the surface
of the axle hub outside the hub bolt.
Maximum: 0.07 mm (0.0028 in.)
If the deviation exceeds the maximum, replace the axle hub.

I17791
0.4 °
3 m (9.84 ft) H 29.7 mm
(1.17 in.)
7
V RH Line
W90 °
V LH Line4
Low Beam:
V LH LineV Line V RH Line 65
6
29.7 mm
(1.17 in.)
High Beam:
V LH LineV Line V RH Line 6
5629.7 mm
(1.17 in.)
29.7 mm
(1.17 in.) H 4
O: step No.
7
H4
W
W
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
BE±23
2001 PRIUS (RM778U)
ADJUST HEADLIGHT AIM ONLY
(a) Place the vehicle in the following conditions.

The area around the headlight is not deformed.

The vehicle is parked on a level surface.

Tire inflation pressure is the specified value.

A driver is in the driver's seat and the vehicle is in
a state ready for driving (with a tank full).

The vehicle has been bounced several times.
(b) Check the headlight aiming.
(1) Prepare a thick white paper.
(2) Stand the paper perpendicular to the ground at the
position 9.84 ft away from the headlights.
(3) Ensure that the center line of the vehicle and the pa-
per face forms a 90±degree angle as shown in the
illustration.
(4) Draw a horizontal line (H line) on the paper, showing
where the headlights should strike.
(5) Draw a vertical line (V line) to where the center line
of the vehicle is to be.
(6) Draw 2 vertical lines (by connecting the low and
high beam center marks) to where the both head-
lights should strike (V RH and V LH lines).
(7) Draw a horizontal line (by connecting the both low
beam center marks) to where the headlights should
strike (H RH and H LH lines).
(8) Start the engine.
(9) Turn the headlights ON.
(10) Check that the headlights properly strike the posi-
tion shown in the illustration.
(11) If not, adjust the lights in the vertical direction.
HINT:
As shown in the illustration, adjust each aim of the RH and LH
lights.
(c) When adjusting it in the vertical direction:
Using adjusting bolt, adjust the headlight aim to within the
specified range.