illumination TOYOTA PRIUS 2001 Service Repair Manual

2001 PRIUS (EWD414U)
G ELECTRICAL WIRING ROUTING
Position of Parts in Instrument Panel
A 7 A/C Amplifier
A 8 A/C Amplifier
A 9 A/C Amplifier
A 10 A/C Room Temp. Sensor
A 11 A/C Solar Sensor
A 12 A/C Thermistor
A 13 Accel Position Sensor
A 14 Air Inlet Control Servo Motor
A 15 Air Mix Control Servo Motor
A 16 Air Vent Mode Control Servo Motor
A 17 Airbag Sensor Assembly
A 18 Airbag Sensor Assembly
A 19 Airbag Sensor Assembly
A 20 Airbag Squib (Front Passenger Airbag Assembly)
A 21 Airbag Squib (Steering Wheel Pad)
A 22 Ashtray Illumination
B 5 Back±Up Light Relay
B 6 Blower Motor
B 7 Blower Motor Linear Controller
B 8 Body ECU
B 9 Body ECU
B 10 Brake ECU
B 11 Brake ECU
B 12 Brake ECU
B 13 Brake ECU
B 14 Brake Warning BuzzerC 7 Center Cluster SW
C 8 Cigarette Lighter
C 9 Cigarette Lighter Illumination
C 10 Combination Meter
C 11 Combination Meter
C 12 Combination SW
C 13 Combination SW
C 14 Combination SW
D 2 Data Link Connector 3
D 3 Daytime Running Light Relay
D 4 Diode (Door Courtesy)
D 5 Diode (Daytime Running Light)
E 3 EMPS ECU
E 4 EMPS ECU
E 5 EMPS ECU
E 6 EMPS ECU
E 7 Engine Control Module
E 8 Engine Control Module
E 9 Engine Control Module
E 10 Engine Control Module

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

2001 PRIUS (EWD414U)
ILLUMINATION
TAIL RELAY
5±3 : Closed with the light control SW at TAIL or HEAD position
C13 COMBINATION SW
14±16 : Closed with the light control SW at TAIL or HEAD position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A2236F13D34J2437
B936F1838J27A37
C736H737J28B37
C936J1137L137
C10A36J1737M737
C11B36J2137R2A37
C1336J22A37R3B37
F11B34J23B37
: 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)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)
ID242Instrument Panel Wire and Cowl Wire (Left Kick Panel)
: GROUND POINTS
CodeSee PageGround Points Location
ID42Cowl Side Panel LH
IF42Left Kick Panel
IG42Cowl Side Panel RH
IH42Right Kick Panel
SERVICE HINTS

2001 PRIUS (EWD414U)
J POWER SOURCE (Current Flow Chart)
Fusible Link Block No.1 (See Page 22)
FuseSystemPage
100ADC/DC
Illumination
Key Reminder and Light Reminder Buzzer
Light Auto Turn Off
Taillight
TOYOTA Hybrid System92
11 4
104
88
54
Fusible Link Block No.2 (See Page 23)
FuseSystemPage
5ADC/DC±STOYOTA Hybrid System54
120AMAIN
ABS
Engine Control
Headlight (w/o Daytime Running Light)
Hybrid Vehicle Immobiliser System
Illumination
Key Reminder and Light Reminder Buzzer
Light Auto Turn Off
SRS
Taillight
TOYOTA Hybrid System172
68
84
78
92
11 4
104
167
88
54
Engine Room R/B No.3 (See Page 24)
FuseSystemPage
7.5ADRLHeadlight (w/ Daytime Running Light)80
10AABS NO.4ABS172
30AHTR1Air Conditioning188
30AHTR2Air Conditioning188
40AABS NO.1ABS172
50AEMPSEMPS164
50AHTR3Air Conditioning188
Engine Room J/B (See Page 26)
FuseSystemPage
10ABATT FANTOYOTA Hybrid System54
10AHEAD (LH)Headlight (w/o Daytime Running Light)84
10AHEAD (RH)Headlight (w/o Daytime Running Light)84
10AHEAD HI (LH)Headlight (w/ Daytime Running Light)80
10AHEAD HI (RH)Headlight (w/ Daytime Running Light)80
10AHEAD LO (LH)Headlight (w/ Daytime Running Light)80
10AHEAD LO (RH)Headlight (w/ Daytime Running Light)80
10AHORNHorn
Theft Deterrent124
146
10ATURN±HAZTurn Signal and Hazard Warning Light96
*These are the page numbers of the first page on which the related system is shown.

2001 PRIUS (EWD414U)
J
FuseSystemPage
15AAM2
ABS
Engine Control
Hybrid Vehicle Immobiliser System
SRS
TOYOTA Hybrid System172
68
78
167
54
15ADOME
Combination Meter
Door Lock Control
Headlight (w/ Daytime Running Light)
Headlight (w//o Daytime Running Light)
Illumination
Interior Light
Key Reminder and Light Reminder Buzzer
Navigation System
Power Window
Radio and Player
Seat Belt Warning
Theft Deterrent
TOYOTA Hybrid System
Wireless Door Lock Control182
134
80
84
92
108
11 4
156
126
152
11 8
146
54
140
15AEFIEngine Control68
15ATHROEngine Control68
20AABS NO.3ABS172
20AHVTOYOTA Hybrid System54
30AABS NO.2ABS172
30ACDS FANRadiator Fan and Condenser Fan186
30AHEAD
Headlight (w/ Daytime Running Light)
Key Reminder and Light Reminder Buzzer
Light Auto Turn Off80
11 4
104
30ARDIRadiator Fan and Condenser Fan186
50AHTRAir Conditioning188
Instrument Panel J/B (See Page 30)
FuseSystemPage
5AECU±IG
ABS
Electric Tension Reducer
EMPS
Gateway System
Navigation System
Radiator Fan and Condenser Fan
Shift Lock172
162
164
160
156
186
132
5APANELIllumination92
7.5AECU±BAir Conditioning
Combination Meter188
182
*These are the page numbers of the first page on which the related system is shown.

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

SYSTEM INDEX
M OVERALL ELECTRICAL WIRING DIAGRAM
2001 PRIUS (EWD414U)
SYSTEMS LOCATION SYSTEMS LOCATION
ABS 19±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 24±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back±Up Light 6±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cigarette Lighter 11±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combination Meter 23±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Lock Control 15±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric Tension Reducer 13±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EMPS 20±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine Control 2±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gateway System 14±8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/ Daytime Running Light) 4±2. . . . . . . . . . . . . . . . . . . . . . . . . .
Headlight (w/o Daytime Running Light) 3±2. . . . . . . . . . . . . . . . . . . . . . . . .
Horn 12±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hybrid Vehicle Immobiliser System 2±16. . . . . . . . . . . . . . . . . . . . . . . . . . .
Illumination 8±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Light 10±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Key Reminder and Light Reminder Buzzer 9±2. . . . . . . . . . . . . . . . . . . . . .
Light Auto Turn Off 9±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Navigation System 14±5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Source 1~24±1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Window 18±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Fan and Condenser Fan 22±3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio and Player 14±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Window Defogger 22±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote Control Mirror 11±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat Belt Warning 9±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shift Lock 13±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS 21±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stop Light 3±4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillight 7±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft Deterrent 17±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TOYOTA Hybrid System 1±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
* Charging
* Cruise Control
* Regenerative Brake
Turn Signal and Hazard Warning Light 5±2. . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper and Washer 12±3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless Door Lock Control 16±2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2001 PRIUS (EWD414U)
M
1
234
8 PRIUS
Power Source
1120A MAIN 1 00A DC/ DC
2 1
3 5
ID Cowl si de
panel LHA 1D 1B
WB±GW±B
J11
J UNCTI ON
CONNE CTOR F18
FUSIBLE LINK
BL OCK NO. 2
BATTERYTAIL
REL AY
F11 F12,
FUSIBLE LINK
BL OCK NO. 1BC5A
PANEL
2K 82D 8
Illumination
A A 1 2
1 2 2H 12K6
6 8
2 5
105 2D 1HA HA HA HA
FB FB FB FB
6B 7B
A A
C C
E E
DB
EA B
IFLeft kick
panel
LG LG LG
LG
W± L
W± L
W± L
BR
W± L
W± L LG
LG
LG LG
LG
LG
LG
635 4
W± B W± BW±B
W± B
W± BLG±B LG
W±L
BR W±L W±L
W±L
C
B B
W± L
J22 J23,
J UNCTI ON
CONNE CTORABC10 C11,
COMBI NATI ON MET ERAB
A22
ASHTRAY
ILLUMINATION C 9
CI GARETTE LI GHTER
ILLUMINATIONM 7
MUL TI DI SP LAY H 7
HAZARD WA RNI NG SWC 7
CE NTER CLUS TER SW L 1
LI GHT CONTROL RHEOSTATJ24
JUNCTI ON
CONNECTOR
J21
JUNCTI ON
CONNECTOR
J21
JUNCTI ON
CONNECTOR
J21
JUNCTION
CONNECT OR
See Taillight
System< 7±1>
J27 J28,
JUNCTI ON
CONNECTORAB
5A 10 B
RADI O AND PLAYERB A R 2 R 3,
CC
W± L
J21
JUNCTI ON
CONNECTOR
W±LA
W± L 1C2G 2
1B 2
15A DOME
1J 72A 4L±Y B
F1 3 , D
L
14 A21 A
62A
2B 7
IH Right kick
panel
LLBR L

2001 PRIUS (EWD414U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
23 PRIUS(
Cont. next page)
5
3 1
2
5A AM1
A12H
D 1 C 1B1
120A MAIN1I15
IGNITION SW100 A DC/ DC
4 AM1
ST1IG1 ACC
2
2B 3 2D 6
IDCowl si de
panel LH 2K 8 1B 2
W±B W±B
B±Y W± GW
B WB±GJ11
JUNCTI ON
CONNECTOR BATTERYF18
FUSI BLE L I NK
BLOCK NO. 2IG1
RELA Y
F11 F12,
FUSI BLE LI NK
BL OCK NO. 1BCF13, D
10A GAUGE
2A 5
W±G
15A DOME
1J 722 A 21 A 13 A 20 A 12 A
14A 2A3A1A 7B6B1B9A 11ABUZZER2B 3B
D OORHEAD
Combination M eter Power Source
2A 4
2B 7
2G 2
2A 6 G
A
G
A G
B
G
B
2A 7
2B 6
IHRight kick
panel51
See Illumination
System< 8±4>
LL±YSee Back±Up
Light System< 6±3> See ABS System
< 19±4> See EMPS Syst em
< 20±4>
15 A
2J 62J82J916 A 9B
7. 5A ECU±B
2C 5
BR L L L L
R± GL V± W LL
L
L
L Y Y± B BR±R GR±B GR ±B
From
Navigation
ECU< 1 4±5 >
R± G R± G
GR GR± L
GR V±W
V±W
V± W
J27 J28,
JUNCTION
CONNECTORAB Fr om Engine
Control
Module< 2±13>From Hybr id
Vehicle Control
ECU< 1±19> F
F
J27
J UNCTI ON
CONNE CTOR BODY ECUB A B 8 B 9, F16
FUEL SENDER
E10
E NGI NE CONT ROL
MODUL E
G 1
GATEWAY ECUA 7
A/ C AMPL I FI ER
13 14 11
4 4
11MPX + MPD1 MP X2 MPX 1 MPD2
MPX ±
C10 C11,
COMBINATION METERAB 4IP15IP1L±WL±Y
48516
3
H 8
OD O/ TRI P SW
[ HA ZARD WARNI NG SW] VFD
TC ODO EA G
From Mul ti
Di spl ay
< 14±7> V± W
MP X+ MP X± B
FU± FU+ FUA
19 11 20
BR±R
Y± B
Y
L±Y
L±R
FUEL SENDER SENSOR

BODY ELECTRICAL ± MULTIPLEX COMMUNICATION SYSTEM 142
SYSTEM OPERATION
1. General
The ECUs that pertain to the body electrical system perform the functions and system controls described be-
low.
Gateway ECU
Conversion of data between AVC-LAN and BEAN
Transmission of vehicle information to the display ECU, in order for it to be displayed on multi-informa-
tion display
Body ECU
Power window system control (Front, Rear passenger only)
Door lock control system control
Wireless door lock remote control system control
Theft deferrent system control
Daytime running light system control
Illuminated entry system control
Light auto turn-off system control
Seat belt warning system control
Key reminder system control
Diagnosis
Meter ECU
Meter control
Illumination and flashing control of indicator and warning lights
Sounding control of warning buzzer
Air Conditioning ECU
Air Conditioning control
ECM
Engine control
Diagnosis
Display ECU
Transmission and reception associated with audio and visual functions