2001 TOYOTA PRIUS clutch

2001 PRIUS (EWD414U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Engine Compartment
A 1 A/C Condenser Fan Motor
A 2 A/C Magnetic Clutch and Lock Sensor
A 3 A/C Triple Pressure SW
(A/C Dual and Single Pressure SW)
A 4 ABS Speed Sensor Front LH
A 5 ABS Speed Sensor Front RH
A 6 Ambient Temp. Sensor
B 1 Brake Actuator
B 2 Brake Actuator
B 3 Brake Actuator
B 4 Brake Fluid Level Warning SW
C 1 Camshaft Position Sensor
C 2 Camshaft Timing Oil Control Valve
C 3 Circuit Breaker Sensor
C 4 Converter
C 5 Converter
C 6 Crankshaft Position Sensor
D 1 DC Motor
E 1 Engine Coolant Temp. Sensor
E 2 Engine Hood Courtesy SWF 1 Front Airbag Sensor LH
F 2 Front Airbag Sensor RH
F 3 Front Parking Light LH
F 4 Front Parking Light RH
F 5 Front Side Marker Light LH
F 6 Front Side Marker Light RH
F 7 Front Turn Signal Light LH
F 8 Front Turn Signal Light RH
F 9 Front Wiper Motor
F 10 Fusible Link Block No.1
F 11 Fusible Link Block No.1
F 12 Fusible Link Block No.1
F 13 Fusible Link Block No.1
H 1 Headlight LH
H 2 Headlight RH
H 3 Heated Oxygen Sensor (Bank 1 Sensor1)
H 4 Horn
H 5 Hydraulic Booster
H 6 Hydraulic Booster

2001 PRIUS (EWD414U)
1 2A E
B AB 2 B 3 B 11 A 3
IE1 20 IE1 15 B 10 A1A8
21 IE1 B AA CAC10A
HTR FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2D 37. 5A
ECU±B
2C 5
IK1 4IK15 IE1 4IE15 B 9B18 A7
B A
A A
2D 8
2K 8
ID B 12 1
1 2
C 2 C 1 C 3 C 4 L±O
LG±R
B±L
R
V
L±Y
L±R
W± BW WL±O
R
R
R±G R±GR LG±R
R±W
W
W
W
W V
L±Y
L±R
W±L
BR±W
V±Y
W± B W± L
BR±W W±L
BR ±WB±L
V±Y
W± B W±BL±Y
L±RVV
A
2 4 1 A
A/C MAGNETIC CLUTCH
AND LOCK SENSOR A 2 JUNCTION
CONNECTOR J 6
A/C ROOM
TEMP. SENSOR A10
A/C THERMISTOR A12 WATER TEMP. SW W 4
JUNCTION
CONNECTORB J27 A , J28
JUNCTION
CONNECTORB J24 A , J25JUNCTION CONNECTORB J22 A , J23
FROM FAN
NO. 2 RELAY
A/C AMPLIFIERB A 7 , A 8AA 9, C
BLW PSW WP LOCK SGLOCK CF GND MGC IG +B RF TR SGTR TE SGTE
IE1 11
V±Y
W± BA
JUNCTION
CONNECTOR J11
FROM CONVERTER
A 10
Y
IDH A F
A F
JUNCTION CONNECTORJ27 A

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) A 1
A/C Condenser Fan Motor90980±11237
A 2A/C Magnetic Clutch and Lock Sensor90980±10942
A 3A/C Triple Pressure SW (A/C Dual and
Single Pressure SW)90980±10943
A 4ABS Speed Sensor Front LH90980±11003A 5ABS Speed Sensor Front RH90980±11003
A 6Ambient Temp. Sensor90980±11070
A 7A/C Amplifier90980±11911
A 8A/C Amplifier90980±11913
A 9A/C Amplifier90980±11927
A10A/C Room Temp. Sensor
A11A/C Solar Sensor90980±11919
A12A/C Thermistor
A13Accel Position Sensor90980±11144
A14Air Inlet Control Servo Motor90980±11921
A15Air Mix Control Servo Motor90980±11909A16Air Vent Mode Control Servo Motor90980±11909
A17Airbag Sensor Assembly90980±11869
A18Airbag Sensor Assembly90980±11872
A19Airbag Sensor Assembly90980±11867
A20Airbag Squib (Front Passenger Airbag
Assembly)90980±11884
A21Airbag Squib (Steering Wheel Pad)90980±10850
A22Ashtray Illumination90980±12111
A23ABS Speed Sensor Rear LH90980±11060A24ABS Speed Sensor Rear RH90980±11060
B 1Brake Actuator90980±11087
B 2Brake Actuator90980±11161
B 3Brake Actuator90980±11698
B 4Brake Fluid Level Warning SW90980±11207
B 5Back±Up Light Relay82660±20340
B 6Blower Motor90980±10214
B 7Blower Motor Linear Controller90980±11676
B 8Body ECU90980±11971
B 9Body ECU90980±11973
B10Brake ECU90980±11935
B11Brake ECU90980±11476
B12Brake ECU90980±11637
B13Brake ECU90980±11638
B14Brake Warning Buzzer90980±10906
B15Battery Blower Motor82824±47130
B16Battery Blower Motor Controller90980±11676
B17Battery ECU90980±11392
B18Battery ECU90980±11424
B19Battery Fan Relay82660±20340
B20Buckle SW and Tension Reducer LH
B21Buckle SW RH and Seat Belt Warning
Occupant Detection Sensor90980±11471
C 1Camshaft Position Sensor90980±10947
C 2Camshaft Timing Oil Control Valve90980±11162
C 3Circuit Breaker Sensor90980±11898
C 4Converter90980±10942
C 5Converter90980±11963
C 6Crankshaft Position Sensor90980±12028
C 7Center Cluster SW90980±10801
C 8Cigarette Lighter90980±10760
C 9Cigarette Lighter Illumination90980±11148
C10Combination Meter90980±11927
C11Combination Meter90980±11923
C12Combination SW90980±11594
C13Combination SW90980±11672
C14Combination SW90980±11616
D 1DC Motor90980±10838
D 2Data Link Connector 390980±11665
D 3Daytime Running Light Relay90980±12034
D 4Diode (Door Courtesy)90980±11251
D 5Diode (Daytime Running Light)90980±10962
D 6Door Courtesy SW Front LH
D 7Door Courtesy SW Front RH90980±10871D 8Door Courtesy SW Rear LH90980±10871
D 9Door Courtesy SW Rear RH
D10Door Lock Control SW Front RH90980±10797
D11Door Lock Motor and Door Unlock
Detection SW Rear LH
90980±11150
D12Door Lock Motor and Door Unlock
Detection SW Rear RH90980±11 150
D13Door Lock Motor, Door Key Lock and
Unlock SW and Door Unlock Detection SW
Front LH
90980±11858
D14Door Lock Motor, Door Key Lock and
Unlock SW and Door Unlock Detection SW
Front RH90980±11 858
E 1Engine Coolant Temp. Sensor90980±10737
E 2Engine Hood Courtesy SW90980±11189
E 3EMPS ECU90980±12012
E 4EMPS ECU90980±11579
E 5EMPS ECU90980±12120
E 6EMPS ECU90980±11923
E 7Engine Control Module90980±11421
E 8Engine Control Module90980±11476
E 9Engine Control Module90980±11637

2001 PRIUS (EWD414U)
M
78
6 5
(
Cont. next page)
24 PRIUS (
Cont' d)
9B 18B
4IE1 5IE1
4IK1 5IK1 A
B
C
EA
B
C
2F 615 A 16 A
11 A 4 A 5 B4B13 D 14 D 23 C
3D 22D 18BIA25
1 2
F2B 6C 5C17 C 15 C 16 C 14 C 13 C
6 II1 8 II1 7 II1 9 II1 10 II1
M 20 C C18 19 C 22 C 21 C
M DD
Air Conditioning
B A
A/ C AMPLI FI ER, A 8 A 7 A 9, C4C 1B 3C 1C 2C2 1
1 2 18
34
1 211
1422
12345 12345 B±R
G±W
G
R±L
L±O
B± LGR± LW±G
BRW±G
BR± WB± R
G±W
G
R±L
GR± B GRGR± BLG P±G R±WW
W W W
W± L BR±W
W± L BR±W
W±L BR± W V± YW W W W
W
W
W W W
W
W
W
W± R BR±YY±RL BR±R
B 8
BODY ECUA
E 8 E 9,
ENGI NE CONTROL MODULEBC
A10
A/ C ROOM
TEMP. SENSOR A12
A/ C THERMI STOR
Fr om FAN NO. 1 and
FA N NO. 2 Rel ay< 22± 4>
LOCK SGLOCK CF S5TS TS SGTPI S5 TPI TPI AI F AI R S5 TP SGTP TP AMC AMHMP X+ MP2 + NE A CTRF TR SGTR TE SGTE
A 2
A/C MAGNETIC
CLUTCH AND
L OCK SENSORMP X+ MPD2 MPX 1 MPX 2 TA M
MP X± MPD1 NEO A CT E 2
GR
, DE10 A 6
AMBI ENT
TEMP.
SENSOR
A11
A/C SOLAR
SENSOR C11
COMBINATION
METE RG 1
GATE WAY
ECU
IK12
Fr om FAN NO. 3 Rel ay
< 22±4>
A1 5
AI R MI X CONTROL SE RVO MOTOR A1 4
AI R I NLE T CONTROL S ERVO MOTOR IDH
Y
10 A
Fr om Conv erter
< 1±13>
MP X+ MPX ± HRLY

THS (TOYOTA HYBRID SYSTEM)
HV ECUG-SDOWNInverter
(for MG1)
MG1
MG2
M-UU, VU, WUSwitching Signal
Switching Signal
G-SIN, COS
M-SIN, COS
Inverter
(for MG2) G-UU, VU, WU
M-SDOWN
G-REF
M-REF
30
5. Inverter Control (for MG1, MG2)
The HV ECU transmits a signal to the power transistor in the inverter (G-UU, VU, WU, M-UU, VU, WU)
for switching the U, V, W phase of the stator coil of MG1 and MG2, based on the rotor position information
sent from MG1, 2 (G-SIN, COS, M-SIN, COS) and the SOC of the HV battery sent from the battery ECU.
When shutting down the current to MG1, 2, a signal is sent to the inverter from the HV ECU (G-SDOWN,
M-SDOWN).
Clutchless System
A clutchless system has been adopted to keep the front wheels and MG2 linked mechanically via gears and
a chain. To disengage the drive force in the neutral position, the N position signal from the shift position
sensor turns OFF all the power transistors in the inverter (which connects the MG1 and the MG2) in order
to shut down the operation of the MG1 and the MG2, thus rendering the drive force at the wheels to zero.
In this state, even if the engine is running, the MG1 merely freewheels in the no-load state.
Therefore, if the vehicle is allowed to operate continuously in the N position in a stationary state such as
in heavy traffic, the SOC (state of charge) of the HV battery will continue to drop lower and lower.
6. Battery ECU
The SOC, temperature and the voltage of HV battery are detected by the battery ECU, and this information
is sent to HV ECU.

BODY ± ENHANCEMENT OF PRODUCT APPEAL
182BO16
Gas Pressure from
the Gas Generator
RackBobbinSeat Belt
Planetary Gear
Pinion GearClutch Mechanism
139
SEAT BELT
1. General

The front seats are provided with an electrical sensing type seat belt pretensioner and a seat belt force limit-
er. In the beginning of a collision, the seat belt pretensioner instantly pulls up the seat belt thus providing
the excellent belt's effectiveness in restraining the occupant.
When the impact of a collision causes the tension of the seat belt applied to the occupant to reach a predeter-
mined level, the force limiter restrains the tension, thus controlling the force applied to the occupant's chest
area.

In accordance with the ignition signal from the airbag sensor assembly, the seat belt pretensioner activates
simultaneously with the deployment of the SRS airbags for the driver and front passenger.

The passenger seats are provided with ALR (Automatic Locking Retractor) / ELR (Emergency Locking
Retractor) seat belts.
2. Seat Belt Pretensioner
General
The pretensioner mechanism mainly consists of a rack, pinion gear, planetary gear, clutch mechanism, and
a bobbin.
During the deployment of this pretensioner mechanism, the gas pressure from the gas generator pushes the
rack down and retracts the seat belt via the pinion gear, planetary gear, clutch mechanism, and bobbin.

BODY ELECTRICAL ± AIR CONDITIONING
165BE22 165BE21
Fixed Scroll Magnetic
ClutchShaft Suction Port
Oil Separator
Discharge Port
Fixed Scroll Variable Scroll PinsDischarge PortIntake Port 160
3. Compressor
General
A compact and high performance scroll compressor with oil separator has been adopted.
Construction
The scroll compressor with oil separator consists of a spirally wound fixed scroll and variable scroll that
form a pair, and oil separator, and a magnetic clutch.
The fixed scroll is integrated with the housing. Because the rotation of the shaft causes the variable scroll
to revolve while maintaining the same posture, the volume of the space that is partitioned by both scrolls
varies to perform the suction, compression, and the discharge of the refrigerant gas.
A pin is attached behind the variable scroll to prevent the autorotation of the variable scroll, allowing it only
to revolve.
Locating the suction port directly above the scrolls enables direct suction, thus realizing improved suction
efficiency.
Containing a built-in oil separator, this compressor is able to separate the compressor oil that is intermixed
with the refrigerant and circulates in the refrigeration cycle, thus realizing a reduction in the oil circulation
rate.

BODY ELECTRICAL ± AIR CONDITIONING
182BE31
Tentative Damper Opening Angle
(During 2-Way Flow Mode)
Damper
Opening
Recirculation /
Fresh Air
SwitchingFresh
Air
2-Way
Flow
MAX HOT
182BE33
A / C SwitchMAX
Switch171
Air Inlet Control System
1) Manual Control
Drives the air inlet servomotor according to
the operation of the air inlet control switch and
fixes the dampers in the FRESH or RECIRC
position.
The 2-way flow mode control switches the re-
circulation / fresh-air function in accordance
with the opening of the air mix damper, calcu-
lates the target opening of the damper, and ro-
tates the servomotor.
2) Battery ECU Forced Fresh Air Mode
When the air conditioning ECU receives the forced fresh air mode signal from the battery ECU via the
HV ECU and the ECM, the damper forcefully switches to the FRESH mode.
3) DEF, FOOT / DEF Mode Control
When the mode switching switch is switched to FOOT / DEF mode from DEF mode or other than
FOOT / DEF mode, air conditioning ECU switches to FRESH mode forcibly.
Also, when the mode switching switch is switched to DEF mode from other than DEF mode, air condi-
tioning ECU turns MAX mode ON and switched to FRESH mode forcibly.
Compressor Control System
1) OFF Control
Turns OFF the magnetic clutch of the compressor when the conditions for turning the blower motor OFF
during warm-up control have been met.
2) Compressor Lock Judgment
When the magnetic clutch is ON, if the air
conditioning ECU judges that the compressor
has been locked, it turns OFF the magnetic
clutch relay and flashes the indicator lamp in
the A / C or MAX switch. The conditions in
which the ECU judges the compressor to have
locked are when a slippage rate of 80% or
more has been continued for 3 seconds or
more.