Page 104 of 1943
2001 PRIUS (EWD414U)
LIGHT AUTO TURN OFF
: 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)
IB142Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID242Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
ID42Cowl Side Panel LH
IG42Cowl Side Panel RH
Page 106 of 1943
2001 PRIUS (EWD414U)
INTERIOR LIGHT
15A
DOME FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1J 7
2G 2
2N 3
B DBD A EAE 2A4
2 1
BI1 2
B E
A D
112
OFF
ON DOOR
2N 12L62K32K1
11A 12
11B F
A D
IB1 3ID2 13
ID A 16 A 15
BA 13 11
3 6 74
14
BAGR ±B GR ±BL±Y
MPX2 MPD2
PCTY L±Y
L±Y
GR±B GR±L GR GR±B
R±W R±W R±WR±W R±W R±WR R±GR±B R±BL±Y
L±Y L±Y
R±W R±WW±B W± BL±Y L±Y
MPD1
MPX1
MPX+ MPX±BODY ECUB 8 A JUNCTION
CONNECTORB J30 , J31AGATEWAY
ECU G 1
ENGINE CONTROL
MODULE E10
JUNCTION
CONNECTOR J33
PERSONAL LIGHT P 5
INTERIOR LIGHT I16LUGGAGE
COMPARTMENT
LIGHT L 5
DOOR COURTESY SW
REAR LH D 8
DOOR COURTESY SW
REAR RH D 9
DOOR COURTESY SW
FRONT LH D 6
DOOR COURTESY SW
FRONT RH D 7
JUNCTION
CONNECTOR J16LUGGAGE
COMPARTMENT
LIGHT SW L 6
JUNCTION CONNECTORB J12 A , J13 JUNCTION CONNECTORB J30 A , J31
A DA 14
IF1 4
R±W
R±W R±W
LCTY
A
JUNCTION
CONNECTOR J11 9B
R±G
7. 5A
ECU±B
2C 5
F F
R±G
JUNCTION
CONNECTOR J27
FROM POWER SOURCE
SYSTEM (
SEE PAGE 50)
B , B 9
B 1
W±B
E DCTY RCTY LPB
2K 82D 8
W±B
Page 108 of 1943
2001 PRIUS (EWD414U)
INTERIOR LIGHT
B8 (A), B9 (B) BODY ECU
3±GROUND : Continuity with front LH door open
6±GROUND : Continuity with rear LH, RH door open
(A)14±GROUND : Continuity with front RH door open
(B) 9±GROUND : Always approx. 12 volts
L6 LUGGAGE COMPARTMENT LIGHT SW
1±GROUND : Closed with the luggage compartment door open
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A736D938J2737
B8A36E1036J30A38
B9B36G137J31B38
C10A36I1638J3338
C11B36J1137L538
D638J12A37L638
D738J13B37P539
D838J1637
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1J27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2A
2B30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)2C30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2D
2G31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K31Cowl Wire and Instrument Panel J/B (Cowl Side Panel LH)
2L31Floor Wire and Instrument Panel J/B (Cowl Side Panel LH)2N31Floor 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)
IB142Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID242Instrument Panel Wire and Cowl Wire (Left Kick Panel)
IF142Instrument Panel Wire and Floor Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
ID42Cowl Side Panel LH
IH42Right Kick Panel
BI46Left Side of Rear Pillar
SERVICE HINTS
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 113 of 1943
2001 PRIUS (EWD414U)
ID 2C 9
B 11 2
B A
A A
2D 8
2K 8 B B
A E
W±B
W± B W±B W±BL±B L±B
L±BJUNCTION
CONNECTOR J27
UNLOCK WARNING SW U 1
JUNCTION CONNECTORB J24 A , J25
JUNCTION
CONNECTOR J11 12* 1 : W/ DAYTIME RUNNING LIGHT
* 2 : W/O DAYTIME RUNNING LIGHT
BODY ECUB B 8 , B 9A L
A 16
MPX±A 15
MPX+
GR
MPX2 MPX1 14
13
GR±L
MPD2 MPD14
11
B 2
BUZZERB 3A22 A21
GR
L
L GR ±B
MPX+MP2+4
1115A
DOME FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
1J 7
2G 2
2A 4
L±Y GR ±B GR ±B
GR± B
ENGINE CONTROL
MODULE E10
GATEWAY ECU G 1
A/C AMPLIFIER A 7
COMBINATION METERB C10 , C11A
2A 7
2B 6A 14
IH
L BR
KSW
Page 114 of 1943
2001 PRIUS (EWD414U)
KEY REMINDER AND LIGHT REMINDER BUZZER
The current always flows from GAUGE fuse to body ECU TERMINAL 15.
1. LIGHT REMINDER BUZZER SYSTEM
If you open the door of the driver's side when either headlight or taillight is on with ignition SW being off, the buzzer comes
on.
2. KEY REMINDER BUZZER SYSTEM
If you open the door of the driver's side when the ignition key is inserted in ignition SW being off, the buzzer comes on.
B8 (A), B9 (B) BODY ECU
(B) 9±GROUND : Always approx. 12 volts
(A) 1±GROUND : Always continuity
12±GROUND : Continuity with the ignition key in cylinder
D6 DOOR COURTESY SW FRONT LH
1±GROUND : Closed with the driver's door open
C10 (A) COMBINATION METER
(A)22±GROUND : Approx. 12 volts with the ignition SW at ON position
(A)21±GROUND : Always approx. 12 volts
(A)14±GROUND : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A736E1036J13B37
B8A36F11B34J1737
B9B36F12C34J2037
C10A36F13D34J24A37
C11B36F1838J25B37
C1336G137J2737
D336J1137U137
D638J12A37
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B
1F27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1J
gg(g)
2A
2B30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)2C30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2D
2G31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)2H31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K31Cowl 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)
IB142Floor Wire and Cowl Wire (Cowl Side Panel LH)
ID242Instrument Panel Wire and Cowl Wire (Left Kick Panel)
SYSTEM OUTLINE
SERVICE HINTS
Page 117 of 1943
2001 PRIUS (EWD414U)
When the driver has not fastened the seat belt while the ignition SW is ON, the driver seat belt warning light blinks, and a
warning buzzer comes on.
Also, in the front passenger seat, a sensor recognizes a passenger, and when the passenger has not fastened the seat belt,
the front passenger seat belt warning light blinks.
B20 BUCKLE SW LH
1±2 : Closed with driver's seat belt in use
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A736C10A36J22A37
B8A36C11B36J23B37
B9B36E1036J24A37
B2038G137J25B37
B2138J1137J2937
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1J27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2A
2B30Instrument Panel Wire and Instrument Panel J/B (Cowl Side Panel LH)
2D
()
2G31Engine Room Main Wire and Instrument Panel J/B (Cowl Side Panel LH)
2K31Cowl 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)
IJ144Floor No.3 Wire and Instrument Panel Wire (Under the Instrument Panel Center)
: GROUND POINTS
CodeSee PageGround Points Location
ID42Cowl Side Panel LH
IH42Right Kick Panel
SYSTEM OUTLINE
SERVICE HINTS
Page 120 of 1943
2001 PRIUS (EWD414U)
CIGARETTE LIGHTER
15A
CIG FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2D 5
1 2
A A
2K 82D 8
ID A
GR W± B W± B W±B
CIGARETTE
LIGHTER C 8
JUNCTION
CONNECTOR J24
JUNCTION
CONNECTOR J11
