2001 TOYOTA PRIUS O2 sensor

2001 PRIUS (EWD414U)
G
Position of Parts in Instrument Panel
G 1 Gateway ECU
H 7 Hazard Warning SW
H 8 Hazard Warning SW
H 9 Heated Oxygen Sensor (Bank 1 Sensor 2)
H 10 Hybrid Vehicle Control ECU
H 11 Hybrid Vehicle Control ECU
H 12 Hybrid Vehicle Control ECU
H 13 Hybrid Vehicle Control ECU
H 14 Hybrid Vehicle Control ECU
I 15 Ignition SW
J 1 Junction Connector
J 2 Junction Connector
J 3 Junction Connector
J 4 Junction Connector
J 5 Junction Connector
J 6 Junction Connector
J 7 Junction Connector
J 8 Junction Connector
J 9 Junction Connector
J 10 Junction Connector
J 11 Junction Connector
J 12 Junction Connector
J 13 Junction Connector
J 14 Junction Connector
J 15 Junction Connector
J 16 Junction Connector
J 17 Junction Connector
J 18 Junction Connector
J 19 Junction Connector
J 20 Junction Connector
J 21 Junction ConnectorJ 22 Junction Connector
J 23 Junction Connector
J 24 Junction Connector
J 25 Junction Connector
J 26 Junction Connector
J 27 Junction Connector
J 28 Junction Connector
J 29 Junction Connector
L 1 Light Control Rheostat
M 5 Multi Display
M 6 Multi Display
M 7 Multi Display
P 1 Park/Neutral Position SW
P 2 Parking Brake SW
P 3 PTC Heater
P 4 PTC Heater
R 2 Radio and Player
R 3 Radio and Player
R 4 Radio and Player
R 5 Remote Control Mirror SW
S 2 Shift Lock ECU
S 3 Stop Light SW
T 4 Transponder Key Computer
T 5 Turn Signal Flasher Relay
U 1 Unlock Warning SW and Key Interlock Solenoid
W 5 Wireless Door Control Receiver

2001 PRIUS (EWD414U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Body
A 23 ABS Speed Sensor Rear LH
A 24 ABS Speed Sensor Rear RH
B 15 Battery Blower Motor
B 16 Battery Blower Motor Controller
B 17 Battery ECU
B 18 Battery ECU
B 19 Battery Fan Relay
B 20 Buckle SW and Tension Reducer LH
B 21 Buckle SW RH and
Seat Belt Warning Occupant Detection Sensor
D 6 Door Courtesy SW Front LH
D 7 Door Courtesy SW Front RH
D 8 Door Courtesy SW Rear LH
D 9 Door Courtesy SW Rear RH
D 10 Door Lock Control SW Front RH
D 11 Door Lock Motor and Door Unlock Detection SW
Rear LH
D 12 Door Lock Motor and Door Unlock Detection SW
Rear RH
D 13 Door Lock Motor, Door Key Lock and Unlock SW and
Door Unlock Detection SW Front LH
D 14 Door Lock Motor, Door Key Lock and Unlock SW and
Door Unlock Detection SW Front RHF 14 Front Door Speaker LH
F 15 Front Door Speaker RH
F 16 Fuel Pump and Fuel Sender
F 17 Fusible Link Block No.2
F 18 Fusible Link Block No.2
H 15 High Mounted Stop Light
H 16 Hybrid Vehicle Battery
H 17 Hybrid Vehicle Battery
I 16 Interior Light
I 17 Interlock SW
J 30 Junction Connector
J 31 Junction Connector
J 32 Junction Connector
J 33 Junction Connector
L 2 License Plate Light LH
L 3 License Plate Light RH
L 4 Luggage Compartment Door Unlock SW
L 5 Luggage Compartment Light
L 6 Luggage Compartment Light SW

2001 PRIUS (EWD414U)
G
Position of Parts in Body
N 2 Navigation ECU
N 3 Navigation ECU
N 4 Noise Filter (Rear Window Defogger)
P 5 Personal Light
P 6 Power Window Control SW Front RH
P 7 Power Window Control SW Rear LH
P 8 Power Window Control SW Rear RH
P 9 Power Window Master SW
P 10 Power Window Motor Front LH
P 11 Power Window Motor Front RH
P 12 Power Window Motor Rear LH
P 13 Power Window Motor Rear RH
P 14 Pretensioner LH
P 15 Pretensioner RH
R 6 Rear Combination Light LH
R 7 Rear Combination Light RH
R 8 Rear Speaker LH
R 9 Rear Speaker RH
R 10 Remote Control Mirror LH
R 11 Remote Control Mirror RHS 4 Side Airbag Sensor LH
S 5 Side Airbag Sensor RH
S 6 Side Airbag Squib LH
S 7 Side Airbag Squib RH
S 8 System Main Relay
S 9 System Main Relay
S 10 System Main Relay
S 11 System Main Relay
S 12 System Main Relay
T 6 Tension Reducer Solenoid
V 4 Vapor Pressure Sensor
V 5 VSV (Canister Closed Valve)
V 6 VSV (Parge Flow Switching Valve)

2001 PRIUS (EWD414U)
I 4D 13 D14 D23 D22
6541
Y
G
B
R R B GYW± B
(
*1) W± B
E 15 E13 E23 E22 E14 E12 E11 E21 E5
A EB D
ID 2K 82D 8A AAAB AI 2 VCP1 VPA1 VCP2 EP2 P N D B R VSFT SFT GSFT
25674 983
L±R
L±W
L±B
LG±R
R±B
W
B
R L±R
L±W
L±B
LG±R
R±B
W
B
R
W±B(
*1)
W±B W±B W±B
W±B W± B W± B
E E
JUNCTION
CONNECTOR J11JUNCTION
CONNECTOR J21
W±B
JUNCTION CONNECTORB J22 A , J23
JUNCTION
CONNECTORB J2 4 , J2 5A ACCEL POSITION SENSOR A13
PARK/NEUTRAL
POSITION SW P 1H14 , D H13 , E H12 , B CH11, H10 A
HYBRID VEHICLE CONTROL ECU
EOM
A W± BW± B VCP1 VPA1 EP1 VCP2 VPA2 EP2
LL
3 12 DEP1
WW
2 15 DVPA2
A E
1
W±B W± B
* 1 : SHIELDED

2001 PRIUS (EWD414U)
TOYOTA HYBRID SYSTEM
HYBRID VEHICLE CONTROL ECUA H10 , H11
CB, H12
E , H13
D , H14
W± BW± B HTB± BTH+
18 D
G
14
HVO+ HVO±22
R
D 17BTH±
30 D
V
16
HVI± HTB+
20 D
LG
24
HVI+ B 14 B15
1
2
G±R
G±R BR±B CIRCUIT BREAKER SENSOR C 3
AS1G AS1
BRAKE ECU B1 1
GR± B
V± Y
GR
O
LG±B
L±O
LG
P
Y± B
L±W
L
LG±R
Y
P±L
G
L±R
G± W
R
W
L±B
14 2 15 3 16 4 17 5 18 6 7 20 8 21 9 22 10 23 11 24HYBRID VEHICLE BATTERY
BUSBER MODULED 10TC
D 21SIL
D 9WF SE
ID1 2ID11 ID1 10CE
E
13 15C
E
P
P±B P±BY Y
P±B P
P±B
W± L W±L
EJUNCTION
CONNECTOR J1 6
TC WF SEE 10HAI
Y±R
E 9HAO
Y±R12
OP28
OP3JUNCTION
CONNECTOR J26 W±GW±G
W
1234
L
L
B
B
W
W
5
W
7
SIL
O(
*2) O(
*2)
A 1B 1
SERVICE PLUG
O
(
*2)O
(
*2)
HYBRID VEHICLE BATTERY
BUSBER MODULESENSOR
O O
(
*2)
(
*2)
HYBRID VEHICLE
BATTERYB H16 , H17A
BATTERY ECUB B17 , B18A
W
DATA LINK
CONNECTOR 3 D 2

2001 PRIUS (EWD414U)
22 22
IE 3D
4IA1
25 13
A B A BB B
IH1 5
A 1A
A A 20A
HV10A
BATT FAN
11 1F 1J8
25 13IH1 7
1
2M
B 82BB 934
21 FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
LG±R
L±R
L±B
W±B W±BL
L±B L±B
L±BL
W±B
LL±RL±RG±Y
B
W± G
IGCT RELAYG± Y G±Y
G±Y
G± Y W± B G±Y G±YG±Y
W±BL LG±R
BATTERY BLOWER MOTOR B15
BATTERY FAN
RELAY B19
BATTERY ECUB B17 , B18A
JUNCTION
CONNECTORB J 2 A , J 3
HYBRID VEHICLE CONTROL ECUA H10 , H11CB, H12 E, H13 D, H14
BATT
W± G7MREL
O
G±Y
JUNCTION
CONNECTOR J 7
JUNCTION
CONNECTOR J 1
* 2 : HIGH VOLTAGE (
273. 6V)
BI B
B
JUNCTION
CONNECTOR J32 W± B W± BW± B
FCVC
7D
B±W
8
HEVC ABFS
3E
L
23
GSW2
TRANSPONDER
KEY COMPUTER T 4 AIRBAG SENSOR
ASSEMBLY A18
A
W
8A A AA
B C
WJUNCTION
CONNECTORB J22 A , J23
IF1 3
BATTERY
MOTOR
BLOWER
CONTROLLER B16
678910
W
R
R
G
G
W
W
W
W
HYBRID VEHICLE
BATTERYB H16 , H17A
SENSOR

2001 PRIUS (EWD414U)
E 4E 4E 4E 4
E 3E 3E 3
I 7 I 7 I 7
A 14 A 13 A 12 A 25 A 11E 4
2 1
B 5 A C
B B
D 9
B 3B9C25 B4A29
2 1
I 7 I 7B 22 B10 B19
I 71 2
I 7B 14 14 14 14 14
432
15 32 32 32 32
IGNITION COIL AND
IGNITER NO. 1 I 1
IGNITION COIL AND
IGNITER NO. 2 I 2
IGNITION COIL AND
IGNITER NO. 3 I 3
IGNITION COIL AND
IGNITER NO. 4 I 4
INJECTOR NO. 1 I 5 ENGINE COOLANT TEMP. SENSOR E 1 VSV (
EVAP) V 2
MASS AIR FLOW METER M 1JUNCTION
CONNECTORB J24 A , J25
B±R
W
B±R
G
B±R
Y
B±R
Y Y±G B±W
B±W
W± B
B±W
W± B
B±W
W± B
B±W
W± B
B±W (
*1) R±B
G
R
(
*1)
W R±LB G±R
G±RR±WB±W
B±WB
B±W B±W B±W B±W B±WB
B±W
B B G±R G±R
BR BR
B
B
(
*1) B B
B B
B
BR BRB±R
B±R B±R B±RW±B W± B W±B W± B W± B
THW EVG VG THA EVP1 +B MREL FC BATT IGSW IGT1 IGF IGT2 IGT3 IGT4 # 10
1B 12
O 1
OIL PRESSURE SWY±B
MOPS E10 , D C , E 9 AE 8, E 7 B
ENGINE CONTROL MODULE
* 1 : SHIELDEDB

2001 PRIUS (EWD414U)
ENGINE CONTROL
2 1
B 62 1
A 1A1
2
2 E 4E 4E 4
1
I 7 IO1 9C 14
B BB 2
A CACACB 23 B21
I 7 IO1 15
BC1 3BC17BC14 C 22
I 7 B ABA
A C
BC1 5
BC1 2
C 11BC1 1
BC1 6
C 13 A7A8A30 12
1 1
134 23 1
1 2 3 22 2
B±R
L±W
R±W B±WB±W
B±W
V±W V±W BR
BR L±R Y±RY±R Y±RY±R
B±R
LLB±R B
BB
B
P
L (
*1)
BR BRL±R
BR
B
B BR
B
BBRBR BR B±WBBB
B±W B±W B±W
P
L (
*1)
THROTTL E
CONTROL MOTOR T 2
VAPOR PRESSURE SENSOR V 4
VSV (
CANISTER CLOSED VALVE) V 5 VSV (
PARGE FLOW SWITCHING VALVE) V 6NOISE FILTER
(
IGNITION) N 1 INJECTOR NO. 4 I 8 INJECTOR NO. 3 I 7 INJECTOR NO. 2 I 6
VACUUM SENSOR
(
HC ADSORBER AND
CATALYST SYSTEM) V 1
THROTTLE POSITION SENSOR T 3 JUNCTION
CONNECTORB J 8
A, J 9
JUNCTION
CONNECTORB J 4 A , J 5
VTA2 VTA PTNK VC HCLS
Y±RY±RGE01 M+ M± CCV TBP #40 #30 #20
(
*1)
(
*1) (
*1)
Y±RBR E10 , D C , E 9 AE 8, E 7 B
ENGINE CONTROL MODULE
VCC PTNK E2VTA2 VTA1
E2 VC