
Light Auto Turn Off System
From Power Source System (See Page 58)
1
30A 10A 10A 7. 5A
MAIN ECU- B ECU- IG ECU
ACC
W
2
1 1A
5 1 5 1
4 TAIL HEAD
Relay Relay
3 2 3 2
6 2C 8 2C
W- L
O
10 1C 24 1C
16 1L 5 7 8 26 15 22
GND1 TRLY HRLY BECU IG ACC
W
1 B
GND2 DCTY TAIL HEAD A
Fusible Link Block
140A ALT
4 14 D B 6(A), B 9(D) 17 A 23 A 16 A
F 6(A), F 7(B)
Body ECU
R- Y
17 1K
Connector
1 A 48
Junction
J18
R- G
G- B
V
58
W
R- Y
J11(A), J12(B)
FL MAIN 6 A 14 13 12
Connector
3. 0W
Junction
OFF
Control SW
Tail
22 B
Light
Head
W- B
W- B
R- Y
AUTO
Door Courtesy SW
1 C11 16
Combination SW
Battery
Front LH
D7
W- B
IE
120
2005 SIENNA (EWD613U)
Service Hints
B9 (D) 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
(D)14-Ground : Continuity with the front LH door open
D7 Door Courtesy SW Front LH
1-Ground : Continuity with the front LH door open
: Parts Location
Code See Page Code See Page Code See Page
B6 A 34 D7 38 J11 A 36
B9 D 34 F6 A 32 J12 B 36
C11 35 F7 B 32 J18 36
: Junction Block and Wire Harness Connector
Code See Page Junction Block and Wire Harness (Connector Location)
1A
27 Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
1C
1K
27 Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
1L
2C 22 Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
: Ground Points
Code See Page Ground Points Location
IE 46 Left Kick Panel
121
2005 SIENNA (EWD613U)