2001 TOYOTA PRIUS torque

2001 PRIUS (EWD414U)
G
Position of Parts in Engine Compartment
I 1 Ignition Coil and Igniter No.1
I 2 Ignition Coil and Igniter No.2
I 3 Ignition Coil and Igniter No.3
I 4 Ignition Coil and Igniter No.4
I 5 Injector No.1
I 6 Injector No.2
I 7 Injector No.3
I 8 Injector No.4
I 9 Inverter
I 10 Inverter
I 11 Inverter
I 12 Inverter
I 13 Inverter
I 14 Inverter
K 1 Knock Sensor
M 1 Mass Air Flow Meter
M 2 Motor Generator No.1
M 3 Motor Generator No.2
M 4 Motor Generator No.2N 1 Noise Filter (Ignition)
O 1 Oil Pressure SW
R 1 Radiator Fan Motor
S 1 Steering Shaft Torque Sensor
T 1 Theft Deterrent Horn
T 2 Throttle Control Motor
T 3 Throttle Position Sensor
V 1 Vacuum Sensor (HC Adsorber and Catalyst System)
V 2 VSV (EVAP)
V 3 VSV (HC Adsorber and Catalyst System)
W 1 Washer Motor
W 2 Water Pump Motor (A/C)
W 3 Water Pump Motor (Inverter)
W 4 Water Temp. SW

2001 PRIUS (EWD414U)
A 1A4A2A3 C 2
IO1 5
IGA AB ABAD 4D10 D 1D3D9 ID13
ID12
ID11
I 7B C E
2134
AA23 15WRL WRR TRQG TRQ2 TRQ1 TRQV PGND GR±G
P±B
WGR ±G
P±B
W
W± B
W±B W±BB G
R W
B
WGR±GP±B W±L W±B
EMPS ECUB E 3 , E 4AC, E 5 D, E 6
TS TC SIL
W±B
JUNCTION
CONNECTOR J17 STEERING SHAFT
TORQUE SENSOR S 1
BRAKE ECU B11
JUNCTION
CONNECTORB J18 , J19A VCC VT1 VT2 GND RRO RLO
(
SHIELDED)
(
SHIELDED)
JUNCTION
CONNE CTOR J16
(
SHIELDED)
EC B

2001 PRIUS (EWD414U)
EMPS
In this system, the controller determines the direction and the amount of the assistant force based on the signals from the
vehicle speed sensor and the torque sensor that is built in the gear box. The controller then assists the operation of the
steering wheel by controlling the DC motor installed in the steering gear box.
E5 (C), E6 (D) EMPS ECU
(D) 5±GROUND : Approx. 12 volts with the ignition SW at ON position
(C) 2±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B1136E5C36J18A37
C1036E6D36J19B37
D134J14A37J2237
D236J15B37J2637
E3A36J1637S135
E4B36J1737
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
324Engine Room R/B No.3 (Engine Compartment Right)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
2A30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)2B30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2G31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2I31Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA242Engine Room Main Wire and Cowl Wire (Cowl Side Panel LH)
ID142Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IM144Engine Room Main Wire and Cowl Wire (Right Kick Panel)
IO144Engine Wire and Cowl Wire (Right Kick Panel)
IP144Instrument Panel Wire and Cowl Wire (Right Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
IG42Cowl Side Panel RH
IH42Right Kick Panel
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
I744Engine Wire
SYSTEM OUTLINE
SERVICE HINTS

L PART NUMBER OF CONNECTORS
Code Part Name Part NumberCodePart Name Part Number
Note : Not all of the above part numbers of the connector are established for the supply.
2001 PRIUS (EWD414U) L 2
License Plate Light LH90980±11148L 3License Plate Light RH90980±11148
L 4Luggage Compartment Door Unlock SW90980±11212
L 5Luggage Compartment Light90980±11148
L 6Luggage Compartment Light SW90980±11097
M 1Mass Air Flow Meter90980±11317
M 2Motor Generator No.190980±11658
M 3Motor Generator No.290980±11034
M 4Motor Generator No.290980±11143
M 5Multi Display90980±11911
M 6Multi Display90980±11923
M 7Multi Display90980±10799
N 1Noise Filter (Ignition)90980±10843
N 2Navigation ECU90980±11973
N 3Navigation ECU90980±11923
N 4Noise Filter (Rear Window Defogger)90980±11259
O 1Oil Pressure SW90980±11363
P 1Park/Neutral Position SW90980±11535
P 2Parking Brake SW90980±11147
P 3PTC Heater90980±10903
P 4PTC Heater90980±10867
P 5Personal Light90980±11212
P 6Power Window Control SW Front RH
P 7Power Window Control SW Rear LH90980±10797
P 8Power Window Control SW Rear RH
P 9Power Window Master SW90980±11469
P10Power Window Motor Front LH90980±11011
P11Power Window Motor Front RH
P12Power Window Motor Rear LH90980±10860
P13Power Window Motor Rear RH
P14Pretensioner LH90980±11884
P15Pretensioner RH90980±11862
R 1Radiator Fan Motor90980±11237
R 2Radio and Player90980±10996
R 3Radio and Player90980±10997
R 4Radio and Player90980±10903
R 5Remote Control Mirror SW90980±11657
R 6Rear Combination Light LH90980±11011R 7Rear Combination Light RH90980±11011
R 8Rear Speaker LH90980±10935R 9Rear Speaker RH90980±10935
R10Remote Control Mirror LH90980±11587R11Remote Control Mirror RH90980±11587
S 1Steering Shaft Torque Sensor90980±10942
S 2Shift Lock ECU90980±11488
S 3Stop Light SW90980±11118
S 4Side Airbag Sensor LH90980±11857S 5Side Airbag Sensor RH90980±11 857
S 6Side Airbag Squib LH90980±11864S 7Side Airbag Squib RH90980±11864
S 8System Main Relay90980±11529
S 9System Main Relay82675±36050S10System Main Relay82675±36050
S11System Main Relay±S12System Main Relay±
T 1Theft Deterrent Horn90980±10619
T 2Throttle Control Motor90980±11162
T 3Throttle Position Sensor90980±10711
T 4Transponder Key Computer90980±11475
T 5Turn Signal Flasher Relay90980±10799
T 6Tension Reducer Solenoid90980±11918
U 1Unlock Warning SW and Key Interlock
Solenoid90980±10795
V 1Vacuum Sensor (HC Adsorber and Catalyst
System)90980±10845
V 2VSV (EVAP)90980±11156
V 3VSV (HC Adsorber and Catalyst System)90980±11149
V 4Vapor Pressure Sensor90980±11143
V 5VSV (Canister Closed Valve)90980±11156
V 6VSV (Parge Flow Switching Valve)90980±11859
W 1Washer Motor90980±10981
W 2Water Pump Motor (A/C)90980±10887
W 3Water Pump Motor (Inverter)90980±11003
W 4Water Temp. SW90980±11235
W 5Wireless Door Control Receiver90980±11909

2001 PRIUS (EWD414U)
M
1
234
20 PRIUS
2ACC
IG1
ST1 AM1 4
1
120A MAIN
1A
1D2H 1
5A AM1
2 1
3 52B 3 2D 6
IDCowl si de
panel LH 2K 8
AW±B W± B
B±Y W± GW
WB±G
W±G
J11
JUNCTI ON
CONNECTOR I15
IGNITION SW
100 A DC/ DCBATTERYF18
FUSI BLE L I NK
BLOCK NO. 2F10 F11,
FUSI BLE LI NK
BL OCK NO. 1ABF13, DIG1
RELA Y
5A ECU± I G 10A GAUGE
2I 22A5
B 1
W
50A
EMPS
2 1
5 3 333
333
7IA2 1IM1
2D 1C 5D 9D3D 1D DA
EB
1A 4A 2A 3A
21342 1
M
1B 2B
IGCowl si de
panel RH 2C
AA AB AB4D 10D
IO15
B W (
Shielded)
(
Shielded)
B
G
R
W
W±B GRB B±YY B±YW± LP± B GR± G
W±B
GR
W± B W± B
W±B B
B±YD 1
DC MOTOR To Data Link Connec tor 3
<2±5><2±6>
R±G
B± R2 1
EMPS
RE LAY
B±Y
W
E 3 E 4,
EMPS ECUABE 5, C E 6, D
J14 J15,
JUNCTI ON
CONNE CTORAB
AA
J17
JUNCTI ON
CONNECTOR
J18 J19,
JUNCTI ON
CONNECTORAB
PGND TRQV TRQ1 TRQ2 TRQG WRR WRLRLY PIG I G M1 M2 SIL TC TS
VCC VT1 VT2 GND
S 1
STEERI NG SHAFT
TORQUE S ENS OR
EMPS Power Source
(
Shielded)From Brak e ECU
< 19±12>
7. 5A ECU±B
2G 6
WL 7D
Y
3IP1
L11 22
C10
COMBINATION METER
L L
2A 7
2B 6
IHRight kick
panelBR
L14
L

NEW MODEL OUTLINE
182MO18
182MO19
182EG03
kW
60
50
40
30
20
10 N´m
120
11 0
100
90
80
Engine Speed (rpm) 1,000 2,000 3,000 4,000 5,000(52/4,500)
(111/4,200)
Torque
Output
15
HV Battery Charging
When high load operation is continued, the engine
does not stop to charge the HV battery even
if the vehicle is stopped, in order to keep the
HV battery charged to a given level. (when
ªREADYº light is ON.) ;however, the engine does
not charge the HV battery when the lever is
shifted into the ªNº position.
The engine speed may also be increased during normal
traveling in order to charge the HV battery.
1NZ-FXE Engine
The new Prius is fitted with a 1.5
gasoline engine which has been developed for the use with the TOYOTA
hybrid system. A mass of leading-edge technology has been implemented to achieve excellent fuel economy,
low emissions, light weight, compactness, and low vibration and noise.
Outline of the 1NZ-FXE Engine Engine performance curve
1NZ-FXE
Displacement (m
)1,497
TypeDOHC 4 valves
Bore y Stroke (mm)75.0 y 84.7
Compression ratio13.0
Maximum output [kW (HP)/rpm]52 (70)/4,500
Maximum torque [N´m (lb´ft)/rpm]111 (82)/4,200
FuelGasoline

NEW MODEL OUTLINE
MAIN MECHANISM
182CH29
16
4 Features of the 1NZ-FXE engine
1. Highly efficient and high expansion ratio gasoline engine
Adoption of a super fuel-efficient engine developed for use with THS. Its high expansion ratio cycle is achieved by applying the
Atkinson cycle*1 which obtains high thermal efficiency.
2. Reduction in frictional loss
The maximum engine speed is set at 4,500 rpm to reduce frictional resistance, thereby producing a highly efficient low-speed
engine.

An offset crankshaft with 12 mm deviation from the center axis of the cylinder bore is utilized to reduce frictional resistance
of the piston.

Frictional resistance is reduced through the use of low tension valve springs and piston rings.

Lightweight design has been adopted for reciprocating engine parts.
The above measures for reducing frictional loss contribute to improved fuel economy.
3. VVT-i (Variable Valve Timing -intelligent)
The timing of the opening and closing of the intake valves is controlled by the computer according to driving conditions, such
as engine speed and level of acceleration. Thus, smooth intake and exhaust are achieved to greatly improve torque in the low
and medium speed zones. This also contributes to better fuel economy and purification of exhaust gas. Then the VVT-i function
is used to reduce vibration when the engine starts.
4. Compact, lightweight, and low emission
Adoption of an aluminum cylinder block and compact design of parts. And, by positioning the catalytic converter near the engine
for a backwards exhaust layout, we have been able to reduce emissions when the engine is cold started.
*1 : Atkinson Cycle: Proposed by an English engineer named James Atkinson, this thermal cycle enables the compression stroke
and the expansion stroke of the mechanism to be set independently of each other.
Suspension
MacPherson strut type suspension with L-shape
lower arms has been adopted in the front and
torsion beam with toe control link suspension
in the rear. Also, each component part is opti-
mally located and tuned for both excellent con-
trollability and enhanced riding comfort.
EMPS (Electric Motor-assisted Power Steering)
System
Vehicle speed sensing type electric motor-assisted power steering is fitted as standard. Unlike conventional
hydraulic power steering, EMPS does not depend on an engine for its power source, providing a steering feel
in no way inferior to conventional steering when the engine has stopped. Thus it is suitable for the HV system.
Other merits include improved fuel economy through energy conservation, lighter weight, and no need to fill
the power steering fluid.

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