2001 TOYOTA PRIUS Service Repair Manual

NEW MODEL OUTLINE
POINT1
Exterior
POINT2
Interior
POINT3
Main
Mechanism
POINT4
Main
Equipment
POINT5
Safety
7
Prius ± a 4-door compact sedan
5 Features to lead the way into
the next generation
Futuristic image and symmetry are re-
flected in the artistic design of the new
Prius.
An interior which reflects the type of
comfort that will be regarded as a must in
cars hereinafter.
Low-emission & high-fuel efficiency.
TOYOTA hybrid system leading the way
into the next generation.
A range of features for comfort - the
more you use them, the better it gets.
Prius - one step ahead of the rest even in
the area of safety.
Drive with the utmost peace of mind.

NEW MODEL OUTLINE
EXTERIOR
1,695 (66.7)1,465 (57.6)
mm (in.)
182IN01
182MO01
182IN02
8
Futuristic image and symmetry are reflected in the artistic
design of the new Prius.
Front Design
A short slanted hood highlights the singular front design.

The defined character lines from the front fender curving around to the rear give off a fresh appeal.

Crystal-look front combination lamps and compact grille finish off the masked look.
Rear Design
The simple rear design gives out an impression of stability.

Three-dimensional panel make-up produces a perfect balance in its feeling of presence and stability for
the rear view.

The rear combination lamps extend around to the sides, giving emphasis to the wide image.

NEW MODEL OUTLINE
2,550 (100.4)Short rear
overhang Short front
overhang
mm (in.)
4,305 (169.6)182MO02
Long wheelbase
CD = 0.29
attained!
Front tire fairingRear spoiler
Rear tire fairing
182MO03
182MO04
9
Side Design
A mono-form silhouette is the basis of the ultra modern side view.

The short overhang adopted reflects the consideration given to minimize the turning radius.
And the long wheelbase brings better riding comfort and spacious cabin.
Aerodynamics
The upper body profile provides smooth airflow through the free use of computer simulation. Furthermore,
the front tire fairing, rear tire fairing, rear spoiler and flat under-body, among others achieve an excellent drag
coefficient of CD = 0.29.
Disc Wheel
Aluminum wheels are fitted standard on all models.
SizeDesign
P175/65 R14 5 1/2JJ

ENGINE
ENGINE ± INZ-FXE ENGINE
182EG01
182EG02
43
1NZ-FXE ENGINE
DESCRIPTION
The Prius uses the 1NZ-FXE engine that has been newly developed for hybrid system application. Based on
the 1NZ-FE engine, the high-expansion ratio Atkinson cycle has been adopted. It is an in-line 4-cylinder,
1.5-liter, 16-valve DOHC engine.
This engine has adopted the VVT-i (Variable Valve Timing-intelligent) system has been developed to realize
high performance, quietness, fuel economy and clean emissions.
± REFERENCE ±
Atkinson Cycle: Proposed by an English engineer named James Atkinson, this thermal cycle enables the com-
pression stroke and the expansion stroke of the mechanism to be set independently of each other. Later, this con-
cept was realized by the American R. H. Miller, who developed a system called the Miller Cycle in which the
opening and closing timing of the intake valves was made adjustable. Because this system does not generate
high output, there is no practical application for this system unless it is combined with a supercharger; however,
this system offers a high level of thermal efficiency.
On Prius, this weak point can be covered by combining the Atkinson cycle engine with THS.

ENGINE ± 1NZ-FXE ENGINE
182EG03
N.m
120
110
100
90
80
Torque
1000 2000 3000 4000 5000
Engine Speed (rpm)kW
60
50
40
30
20
10
Output
0 44

Engine Specifications 
Engine Type1NZ-FXE1NZ-FE (ECHO)
No. of Cyls. & Arrangement4-Cylinder, In-line

Valve Mechanism16 Valve DOHC, Chain Drive

Combustion ChamberPentroof Type

ManifoldsCross-Flow

Fuel SystemSFI

Displacement cm3 (cu. in.)1497 (91.3)

Bore x Stroke mm (in.)75.0 x 84.7 (2.95 x 3.33)

Compression Ratio13.0 : 110.5 : 1
Max. Output [SAE-NET]52 kW @ 4500 rpm
70 HP @ 4500 rpm81 kW @ 6000 rpm
108 HP @ 6000 rpm
Max. Torque [SAE-NET]111 N.m @ 4200 rpm
82 lb-ft @ 4200 rpm142 N.m @ 4200 rpm
105 lb-ft @ 4200 rpm
IntakeOpen18
±25 BTDC±7
53 BTDC
Valve
IntakeClose72
115 ABDC52
±8 ABDCValve
Timing
ExhaustOpen34 BBDC42 BBDCg
ExhaustClose2 AT D C

Fuel Octane Number RON91 or more

Oil GradeAPI SJ EC or ILSAC


Performance Curve