Page 82 of 1943
2001 PRIUS (EWD414U)
HEADLIGHT (w/o DAYTIME RUNNING LIGHT)
120A MAIN
1
F18
FUSIBLE LINK
BLOCK NO. 2
1B 11 2
32 41
4 1
10A
HEAD
(
LH)10A
HEAD
(
RH)
1F 81F61F7
OFF
TAIL
HEAD
LOW
HIGH
FLASH
IG IA2 6
ID2 3
ID2 5213
213
A FAFBE
B DAEAE
IA1 7IA13
B DA F A F
2A 102I 7
16 17E E
2
A17 7 8 13 C 1
D 1R±G
R±Y
R±Y
R±G
R±L R±GR±W R±W B
R±W R±W R RB±G
W±B
R±G L
R±G R±GR±Y R±Y
R±G
ER±W SHORT
PINSHORT
PIN HEAD
RELAY
HEADLIGHT
LH H 1
JUNCTION
CONNECTOR J20
JUNCTION CONNECTORB J 4 A , J 5
BATTERY
FUSIBLE LINK
BLOCK NO. 1D F12 C , F13
JUNCTION CONNECTORB J12 A , J13
COMBINATION
SW C13
JUNCTION
CONNECTOR J1 7
BODY ECU B 9
HRLY
H
R±W
R±Y
R±G LIGHT
CONTROL SW DIMMER SW
HEADLIGHT
RH H 2
JUNCTION CONNECTORB J 4
A, J 5
L
Page 86 of 1943
2001 PRIUS (EWD414U)
TAILLIGHT
120A MAIN
1
100A DC/DC
2H 12K62F5 2J 7 23 15
7. 5A
TAIL
ID2 2
ID2 6
IGIA1 10
A D
A DBF
BF
1 2
2 1
2 1
IE1 2
16
A 18
14 11
AAAW± B W±BG
W± B
W± B W± B W± B G
G
G
GG
G LG LG LG±R LG±R
W± B
W±BB±G W
TAIL
RELAY
BODY
ECU B 9JUNCTION CONNECTORB J 4 , J 5A
B 1
D 1
W± BFUSIBLE LINK
BLOCK NO. 1D F11 B , F13
FUSIBLE LINK
BLOCK NO. 2 F18
LIGHT CONTROL SW
[COMB. SW] C13
FRONT SIDE MARKER LIGHT LH F 5
FRONT PARKI NG L IGHT RH F 4
FRONT PARKI NG L IGHT LH F 3
FRONT SIDE MARKER LIGHT RH F 6
JUNCTION
CONNECTOR J 7
JUNCTION
CONNECTOR J 1
JUNCTION
CONNECTOR J17 BATTERYOFF
TAI L
HEAD2L 5
G
E 1 E 1 E 1 T TRLY
Page 90 of 1943
2001 PRIUS (EWD414U)
ILLUMINATION
1 2
LG LG W±L
W±LASHTRAY ILLUMINATION A22
CIGARETTE LIGHTER ILLUMINATION C 9
1 2
6 8MULTI DISPLAY M 7LG
IF
BR BR
1
120A MAIN 100A DC/DC
2H 1
16 2K 6
1823 15
ID2 2
ID2 6
14
IG 11
A T
LG LG LG±R LG±R
W± BB±G W
TRLYTAI L
RELAY
1DBODY
ECU B 9
1B
FUSIBLE LINK
BLOCK NO. 1D F11 B , F13
F18
FUSIBLE LINK
BLOCK NO. 2
LIGHT CONTROL SW
[COMB. SW] C13
BATTERYOFF
TAIL
HEAD
JUNCTION
CONNECTOR J1 75A
PANEL
2D 1
LG LG LG LG
W± L
W± L
Page 102 of 1943

2001 PRIUS (EWD414U)
LIGHT AUTO TURN OFF
120A MAIN
1B 1C1
D 11B 1130A
HEAD
1 2
32 41
1F 823 15
7. 5A
TAI L FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2K 62H 1
B 2B11ID2 2 IA2 6
ID2 3
B 17 B18
IG ID2 5ID262K 1
B F
A D
IB1 3
1
ID 2C 9
B 11 2
B A
A A
2D 8
2K 8 B
16 7
EB 6
E
13 14
AA 17 R±W R±WW
B W B±G
LG LGR±G R±G R±G R±G R±W R
LG±R R
LG±R W±B
R±W R±W R±W
W±B
W± B W±B W±BL±B L±B
L±B
2
(
*1) (
*1) (
*1)
R±W
(
*2)
(
*2)
(
*2) (
*1)H H±LP
TAI L REL AY HEAD RELAYSHORT PIN
JUNCTION
CONNECTOR J20DAYTIME RUNNING
LIGHT RELAY D 3
JUNCTION
CONNECTOR J27
UNLOCK WARNING SW U 1
OFF
TAI L
HEAD
100A DC/DC
FUSIBLE LINK
BLOCK NO. 2 F1 8
FUSIBLE LINK
BLOCK NO. 1C F11 B , F1 2
JUNCTION
CONNECTORB J12 A , J13
JUNCTION CONNECTORB J24 A , J25
DOOR COURTESY
SW FRONT LH D 6
JUNCTION
CONNECTOR J17LIGHT CONTROL SW
[COMB. SW] C13
JUNCTION
CONNECTOR J11
D , F13
BATTERY12
3* 1 : W/ DAYTIME RUNNING LIGHT
* 2 : W/O DAYTIME RUNNING LIGHT (
*1)
(
*2)
(
*2)
(
*1)
7. 5A
ECU±B
2C 5
F
F
B 9
BODY ECUB 9 B
R±G R±G
10A
GAUGE
15
H T DCTY E HRLY TRLY TAIL IG B KSW
Page 112 of 1943
2001 PRIUS (EWD414U)
KEY REMINDER AND LIGHT REMINDER BUZZER
120A MAIN
1B 1C1
D 11B 1130A
HEAD
1 2
32 41
1F 823 15
7. 5A
TAI L10A
GAUGE FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2K 62H 1
B 2B11ID2 2 IA2 6
ID2 3
B 17 B18
IG ID2 5ID262K 1
B F
A D
IB1 3
1 16 7
E6
E
13 14
A17 15
T HR±W R±WW
B W B±G
LG LGR±G R±G R±G R±G R±W R
LG±R R
LG±R W±B
R±W R±W R±W
2
(
*1) (
*1) (
*1)
R±W
(
*2)
(
*2)
(
*2) (
*1)H
HRLY TRLYH±LP
TAI L REL AY HEAD RELAYSHORT PIN
JUNCTION
CONNECTOR J20DAYTIME RUNNING
LIGHT RELAY D 3
OFF
TAIL
HEAD
100A DC/DC
FUSIBLE LINK
BLOCK NO. 2 F1 8
FUSIBLE LINK
BLOCK NO. 1C F11 B , F1 2
JUNCTION
CONNECTORB J12 A , J13
DOOR COURTESY
SW FRONT LH D 6
JUNCTION
CONNECTOR J17LIGHT CONTROL SW
[COMB. SW] C13
D , F13
BATTERY3 (
*1)
(
*2)
(
*2)
(
*1)
BODY ECUB B 8 , B 9AL 7. 5A
ECU±B
2C 5 2A 5
R±G
B 9F F
R±G
JUNCTION
CONNECTOR J2 7
DCTYTAIL IG B
Page 165 of 1943

2001 PRIUS (EWD414U)
SRS
NOTICE: When inspecting or repairing the SRS, perform the operation in accordance with the following precautionary
instructions and the procedure and precautions in the Repair Manual for the applicable model year.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most important source of information
when troubleshooting. When troubleshooting the SRS, always inspect the DTCs before disconnecting the battery.
Work must be started after 90 seconds from when the ignition switch is turned to the ºLOCKº position and the
negative (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source so that if work is started within 90 seconds from
disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)
When the negative (±) terminal cable is disconnected from the battery, the memory of the clock and audio system will be
canceled. So before starting work, make a record of the contents memorized in the audio memory system. When work is
finished, reset the audio systems as they were before and adjust the clock. To avoid erasing the memory in each
memory system, never use a back±up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during repairs.
Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner,
airbag sensor assembly or side airbag sensor directly to hot air or flames.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front passenger airbag
assembly, side airbag assembly, seat belt pretensioner, airbag sensor assembly and side airbag sensor assembly
should be inspected.
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Never disassemble and repair the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt
pretensioner, airbag sensor assembly or side airbag sensor assembly in order to reuse it.
If the steering wheel pad, front passenger airbag assembly, side airbag assembly, seat belt pretensioner, airbag sensor
assembly or side airbag sensor assembly has been dropped, or if there are cracks, dents or other defects in the case,
bracket or connector, replace them with new ones.
Use a volt/ohmmeter with high impedance (10 kW/V minimum) for troubleshooting the system's electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instructions on the notices.
After work on the SRS is completed, perform the SRS warning light check.
If the vehicle is equipped with a mobile communication system, refer to the precaution in the IN section of the Repair
Manual.
Page 166 of 1943
2001 PRIUS (EWD414U)
SRS
C 1
D 11B 215A
AM2 1J 976AM2 AM1ACC
IG1
IG2
ST2
1 2 2 1 2 1 12
SPIRAL
CABLE B 14 B13 B10 B11 A6A5C2C1 10A
SRS ACC FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2E 4
2B 5
2E 2
B 5B6B23 A7A10 A12 A9C12 C9C7C104 3 2 1 4 3 2 1 3
SIDE AIRBAG
SQUIB RH S 7
SIDE AIRBAG
SQUIB LH S 6
AIRBAG SQUIB
(
FRONT PASSENGER
AIRBAG ASSEMBLY) A20
AIRBAG SQUIB
(
STEERING
WHEEL PAD) A21 IGNITION SW I15
SIDE AIRBAG SENSOR RH S 5
SIDE AIRBAG SENSOR LH S 4
HYBRID VEHICLE
CONTROL ECU H13
FUSIBLE
LINK
BLOCK
NO. 1D F1 2 , F13CAIRBAG SENSOR ASSEMBLYB A17 , A18AC, A19 ABFS
B±G B W±R W±R
B±W B±O
GR
L
P±L
L±W
LG±B
GR ±L
P
L±Y
LG
GR Y±B
Y
Y±R
Y±G
Y±R
Y±G
Y±G
Y±R
BATTERYD+ D± P+ P± SFL+ SFR±SFL± SFR+ IG2 ACC GSW2 VUPL SSL+ SSL± ESL VUPR SSR+ SSR± ESR
GR
2C 2
2G 1
120A MAIN
1
FUSIBLE
LINK BLOCK
NO. 2 F18
1 212 A 2A1C5C6
P15
PRETENSIONER
RH PRETENSIONER
LH P14
Y±B
Y
Y±B
Y
PL+ PL± PR+ PR±
P±L
(
*1)
(
*1)
(
*1)
(
*1)
(
*1)
(
*1)
(
*1)
(
*1) (
*1) (
*1) (
*1) (
*1)
Page 170 of 1943
2001 PRIUS (EWD414U)
ABS
C 1
D 11B 215A
AM2 1J 92C 2
2G 176AM2 IG2
ST220A
ABS NO. 3
1K30A
ABS NO. 2
1K40A
ABS NO. 1 FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
3
22 22
24 13
24 13
22 2236 21433
33 3 IA214
B±G B W±R W±R
B±W
W±L
B
W±R R W±B LG±RG Y±G G± W
B±W
R
L±O
Y±B
B±L
LG±R
Y±G
G
G±W
W±B
HYDRO MTR
NO. 1 RELAY
HYDRO MTR
NO. 2 RELAY
ABS SOL RELAY
BATTERYFUSIBLE LINK
BLOCK NO. 2F18 FUSIBLE LINK
BLOCK NO. 1D F12 , F13C
1
120A
MAINIGNITION SW I15
Y±B L±OY±B 6411
22