
Headlight
From Power Source System (See Page 58)
10A 7. 5A 10A
ECU- IG ECU ACC ECU- B
W- L
8 2C
R- L
W- L
W- L
R- L
24 1C 7 1L 7 1E
B 6(A), B 7(B)
15 22 26 14 Body ECU
IG ACC BECU MPX1
PKB GND1 GND2 HU HEAD HF HAZ DRL HRLY MPX2
19 5 4 13 23 A 15 A 2 A 11 8 21 B
G- O
R- L
23 1C 10 1C
10 1K 16 1L 17 1K 2 1N
Connector
92
Junction
R- W
G- R
O
J20
R- W
R- G
111
O
Junction Connector
B- O
J 5(A), J 6(B)
3 B
7 13 8 4
17 A
Hazard SW
OFF
Control SW
Tail
H12
W- B
W- B
R- W
Light
Head 3
AUTO
W- B
Parking Brake SW
1 Low
Dimmer
High
SW
Flash
Connector
33
P6
Junction
C11 16
J20
Combination SW
R- L
42
O
W- B
W- B
G- R
IE IG
108
2005 SIENNA (EWD613U)
From Power Source System (See Page 58)
7. 5A
GAUGE2
W- L
25 1H
R- L
W- L
Connector
22 54
Junction
Airbag Sensor
MPX2
J19
Assembly
B- R
34
A21
MPX1
24
W- L
R- L
6 1E 12 32
32 1H
High Beam
V
Engine Control Module
29 B
E 5(B), E 6(C)
MPX2
MPX1 RL
18 B 21 C
R- L
R- L
28 29 30 C10
90 4 Combination Meter
J19
Junction L
Generator
Connector
70
R- L
BR
G2
V
R- L
Connector
32 33
Junction
3
J19
MPX-
A9
A/C Control 62 13
Assembly
MPX+
2
R- L
V
V
R- L
O O
G- R G- R
IF
109
2005 SIENNA (EWD613U)
110
O
G- R
2
1
O
6 2C
3
5
2
1
R- B
1 2G
Headlight
H8
Relay
30A
HEAD
Headlight RH (Low) MAIN
1
2
W- B R- W
(* 2) (*2)
H4
Headlight Control ECU RH
From Power Source System (See Page 58)
1
2
W- B W- B W- B R- W
A
A
8 2F
EA
(* 1) (*1)
J27
15A
H- LP RL
Junction
Connector
B
B
1
2
W- B R R
6 2F
(* 2) (*2)
H6
J2
Headlight LH (Low) 15A
H- LP LL
Junction
Connector
1
2
W- B R
E3
(* 1) (*1)
H3
Headlight Control ECU LH
W- B
2005 SIENNA (EWD613U)
R- B
DRL NO. 4 Relay
2
1
W- B
4
4
E3
2
1
5
3
R- L R- B
4
4
W- B
H5
* 1 : w/ HID
Headlight LH
* 2 : w/o HID
(High)
R- B
W- B
2
1
R- Y R- B
H7
Headlight RH
(High)
W- B
E3
G- R
R- L
R- Y
R- B
W- B
From Power Source System (See Page 58)
20A
DRL
4 2B
R- W R- W
3 3
1 1
B- R
H- LP RH
H- LP LH
10A
10A
2 2
R- B 3 3
B- R
R- L
R
4 4
4 4
1 5 1 5
DRL NO. 3 Relay
4 DRL
NO. 2
Relay
2 3 2 3
4 4 4
4 4
R- W
W- B
G- R
3
1
Short Pin
W- B
R- Y
2
3
W- B
R- Y
R- L
W- B W- B
E3 E3
W- B
G- R
ED
111
2005 SIENNA (EWD613U)
Headlight
Service Hints
Body ECU
26-Ground : Always approx. 12 volts
15-Ground : Approx. 12 volts with the ignition SW at ON position
22-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
4, 5-Ground : Always continuity
C11 Combination SW
13-16 : Closed with light control SW at HEAD position
8-16 : Closed with dimmer SW at FLASH position
7-16 : Closed with dimmer SW at HIGH or FLASH position
: Parts Location
Code See Page Code See Page Code See Page
A9 34 G2 32 J2 33
A21 34 H3 32 J5 A 36
B6 A 34 H4 32 J6 B 36
B7 B 34 H5 32 J19 36
C10 35 H6 32 J20 36
C11 35 H7 32 J27 36
E5 B 35 H8 32 P6 37
E6 C 35 H12 35
: Relay Blocks
Code See Page Relay Blocks (Relay Block Location)
3 24 R/B No.3 (Engine Compartment Left)
4 24 R/B No.4 (Engine Compartment Left)
: Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1C 27 Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1E 27
1H 26
1K Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
( )
1L 27
1N
2B
2C
22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
2G
: Ground Points
Code See Page Ground Points Location
EA 44 Front Side of the Right Fender Apron
ED 44 Front Side of the Left Fender Apron
IE 46 Left Kick Panel
IF 46 Instrument Panel Brace LH
IG 46 Right Kick Panel
: Splice Points
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
E3 44 Engine Room Main Wire
112
2005 SIENNA (EWD613U)
Memo
113
2005 SIENNA (EWD613U)