2001 TOYOTA PRIUS Service Repair Manual

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

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

2001 PRIUS (EWD414U)
: GROUND POINTS
CodeSee PageGround Points Location
ID42Cowl Side Panel LH
IG42Cowl Side Panel RH
IH42Right Kick Panel

2001 PRIUS (EWD414U)
SEAT BELT WARNING
10A
GAUGE FROM POWER SOURCE SYSTEM (
SEE PAGE 50)
2A 5
A 22 B 3 B 2 B 5 A 16 A15
A 14 B 3
IJ1 9
1 3
IJ1 10
A AB A
ID 2D 8
2K 8IJ1 11
B D
A E
A A4
11 13
1 A
2 A 14
4 11
W±B W±B
W±B W±B
W± B
W± B W±BW±B P±L P±L
G±OG±O GR ±BGR
G±O
GR±B
GR
LGR ±B
L
L GR±L
GR±L
MPD1
MPX+ MPX2
PKBL MPX± MPX+ DBKL MPX1MPD2
MP2+
A/C AMPLIFIER A 7
GATEWAY ECU G 1 ENGINE CONTROL MODULE E10
BODY ECUB B 8 , B 9A
COMBINATION METERB C10 , C11A
JUNCTION CONNECTOR J29
15
A
JUNCTION CONNECTORB J2 4 A , J25
JUNCTION CONNECTORB J2 2 A , J23BUCKLE SW RH AND
SEAT BELT WARNING
OCCUPANT DETECTION SENSOR B21
IJ1 8
G±O JUNCTION
CONNECTOR J11
15A
DOME
1J 7
L±Y
2A 42G 2
A 21
L SEAT BELT
(
FRONT
PASSENGER' S SEAT) BUCKLE SW LH B20
SEAT BELT
(
DRIVER' S SEAT)IG
IH 2A 7
2B 6
BR