
POWER REAR QUARTER WINDOW
FROM POWER SOURCE SYSTEM (SEE PAGE 52)
1
15A 30A 25A 10A
PWR- VENT POWER DOOR GAUGE
2
5 1
POWER
RELAY
3 2
4 1M 8 1J 5 1G 1 1D
L- W
B- R
7 3D
W- B
R- Y
1 IG2
19 3D
B- R
L- W
P5
POWER QUARTER WINDOW SW 3 10 24 A 15 A 7
B E P/W B IG
OPEN CLS E1 E2 DCTY PCTY
7 8 6 9 6 4 I13 A
INTEGRATION
RELAY
R
Y
7 1S 2 1V
R- G
W- B
W- B
12 IC1 13 IC1
10 3A
R
Y
J3 B
A B B A B A
CONNECTOR
J20
R- G
JUNCTION 3 3B
JUNCTION
J2 A ,
CONNECTOR
R- G
B A A B
B B
R
Y
3 II2
R- G
3 BB2 2 BB2
R
Y
DOOR COURTESY SW
DOOR COURTESY SW
1 1
W- B
W- B
R
Y
FRONT RH
FRONT LH
2 1 2 1
M M
D16
D17
P8 P9
POWER VENT WINDOW POWER VENT WINDOW
MOTOR LH MOTOR RH
ED IJ
2001 SIENNA (EWD420U)
162
SYSTEM OUTLINE
The current always flows to the TERMINAL 5 of the power relay through the POWER fuse.
When the ignition SW is on, the current from the GAUGE fuse flows to the TERMINAL 7 of the integration relay and by
flowing from the TERMINAL (A) 24 through the power relay (Coil side) to the GROUND, the power relay (Point side) will turn
on.
Accordingly, the current flows from the power relay (Point side) through PWR-VENT fuse to TERMINAL 3 of the power
quarter window SW and it enables to operate the quarter window to open or close.
KEY OFF QUARTER WINDOW OPERATION
When the ignition SW is turned from ON to OFF, the integration relay will operate and for about 43 seconds, the current flows
from the DOOR fuse to TERMINAL (A) 15 of the integration relay, and from TERMINAL (A) 24 through the power relay (Coil
side) to the GROUND, the power relay (Point side) is turned on and enables the quarter window to open or close.
However, even within that period, if the front door is opened, the quarter window can not be operated.
SERVICE HINTS
POWER RELAY
5-3 : Closed with the ignition SW at ON position or key off quarter window operation
P5 POWER QUARTER WINDOW SW
6-GROUND : Always continuity
9-GROUND : Always continuity
3-GROUND : Approx. 12 volts with the ignition SW at ON position or key off quarter window operation
: PARTS LOCATION
Code See Page Code See Page Code See Page
D16 36 J2 A 35 P5 35
D17 36 J3 B 35 P8 37
I13 A 35 J20 36 P9 37
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
1D 22 Cowl Wire and Driver Side J/B No.1 (Lower Finish Panel)
1G 22 Instrument Panel Wire and Driver Side J/B No.1 (Lower Finish Panel)
1J
22 Cowl Wire and Driver Side J/B No.1 (Lower Finish Panel)
No 1
1M
1S 22 Floor Wire and Driver Side J/B No.1 (Lower Finish Panel)
1V 22 Cowl Wire and Driver Side J/B No.1 (Lower Finish Panel)
3A
3B 26 Cowl Wire and J/B No.3 (
(Behind the Combination Meter)
)
3D
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IC1 42 Cowl Wire and Floor Wire (Left Cowl Side Panel)
IG2 42 Instrument Panel Wire and Cowl Wire (Behind the Combination Meter)
II2 44 Floor No.2 Wire and Cowl Wire (Right Kick Panel)
BB2 46 Back Door No.1 Wire and Floor Wire (Left Rear Quarter Panel)
: GROUND POINTS
Code See Page Ground Points Location
ED 40 Near the Left Front Suspension Support
IJ 42 Right Cowl Side Panel
2001 SIENNA (EWD420U)
163