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POWER WINDOW
FROM POWER SOURCE SYSTEM (SEE PAGE 48)
1
30A 10A
POWER ECU- IG
P 7 A , P26 B
2
POWER WINDOW MASTER SW
3 10
POWER ECU- IG
B16 A B BW DU DD PLS LMT GND E
BODY ECU 10 A 3 A 1 A 2 A 7 B 6 B 5 B 4 A
P/W GND DCTY
2 8 19 A
5 1
PWR RELAY
G- W
W- B
G- R
G- B
L- R
L- Y
LG
L
3 2
B
DOOR COURTESY SW
4 1C 1 1C 2 1C 8 1J
1 1 2 3 4 5
W- B
L- R
L- R
L
FRONT LH
M
D16
21 3E 11 IF2 4 IF2 P8 1 IF2
POWER WINDOW MOTOR
FRONT LH
16 3E
W- B
W- B
L- R
L
L L C A L
I5 A B
J10 A , J11 B
JUNCTION
CONNECTOR
L- R L- R L- R
I1
L- R L- R
A
J9 W- B
JUNCTION
CONNECTOR
IF
2002 4RUNNER (EWD471U)
112
P 7 A , P26 B
POWER WINDOW MASTER SW
PU PD AUTO SWL RLU RLD RRU RRD
7 A 8 A 3 B 2 B 9 A 11 A 13 A 14 A
R- Y
R- L
G
Y
GR- R
GR- B
R- G
R- B
6 IF2 5 IF2 8 IF2 7 IF2
8 IF1 7 IF1 18 IF1 9 IF1
G
Y
(BACK WINDOW)
G
FROM DIODE
I23
GR- R
GR- B
R- G
R- B
R- Y
R- L Y
I24
G
Y
2 IK1 17 IK1 3 IK1 12 IK1
6 BW1 5 BW1 6 BX1 5 BX1
GR- R
GR- B
R- G
R- B
R- Y
R- Y
G
G
POWER WINDOW CONTROL SW REAR RH
POWER WINDOW CONTROL SW REAR LH
8 9 10 11 5 2 5 2
SU SD AUTO SWL SU SD SU SD
4 B 4 B
P4
DOWN
DOWN
POWER WINDOW CONTROL SW
UP
UP
FRONT RH
+B E U D LMT+ PLS+ SGND U D U D
7 12 1 6 3 4 2 3 1 3 1
P5
P6
L- Y
L- Y
LG
LG
G- W
W- B
G- R
G- B
L- R
L- Y
LG
L
L- R
1 2 1 2
M M
2 1 4 3 5 P10 P11
6 IK1 2 BW1 POWER WINDOW MOTOR 2 BX1 POWER WINDOW MOTOR
REAR LH REAR RH
M
L- R
L- R
L
P9
W- B
POWER WINDOW MOTOR
FRONT RH
L- R
L- R
A
W- B A J4
JUNCTION
CONNECTOR
IE
2002 4RUNNER (EWD471U)
113
POWER WINDOW
SYSTEM OUTLINE
With the ignition SW turned on, current flows through the ECU-IG fuse to TERMINAL 10 of the body ECU. This activates the
ECU and at all times the current flowing to TERMINAL 3 of the ECU, TERMINAL (A) 3 of the power window master SW and
TERMINAL 7 of the power window control SW front RH from POWER fuse. When the ignition SW turned on, current flows to
TERMINAL 5 of the PWR relay to TERMINAL 3 to TERMINAL (A) 10 of the power window master SW and TERMINAL 4 of
the power window control SW (Rear LH, rear RH).
1. MANUAL OPERATION (DRIVER'S SW)
With the ignition SW turned on and with the power window master SW (Manual SW) in UP position, the current flowing to
TERMINAL (A) 10 of the power window master SW flows to TERMINAL (A) 1 to TERMINAL 1 of the power window motor
front LH to TERMINAL 2 to TERMINAL (A) 2 of the power window master SW to TERMINAL (A) 4 to GROUND and causes
the power window motor to rotate in the up direction. The window ascends only while the SW is being pushed (Manual up
position). In down operation, the flow of current from TERMINAL (A) 10 of the power window master SW to TERMINAL (A) 2
to TERMINAL 2 of the power window motor front LH to TERMINAL 1 to TERMINAL (A) 1 of the power window master SW to
TERMINAL (A) 4 to GROUND, flowing in the opposite direction to manual up operation and causing the motor to rotate in
reverse, lowering the window.
For the other windows, as the power window master SW is operated, the relevant door window is opened or closed.
2. MANUAL OPERATION (FRONT PASSENGER'S SW)
With the power window control SW pulled to the up side, current flowing from TERMINAL 7 of the power window control SW
to TERMINAL 1 to TERMINAL 2 of the power window motor to TERMINAL 1 to TERMINAL 6 of the power window control
SW to TERMINAL 12 to GROUND and causes the power window motor to rotate in the up direction. Up operation continues
only while the power window control SW is pulled to the up side (Manual up position). When the window descends, the
current flowing to the motor flows in the opposite direction, from TERMINAL 2 to TERMINAL 1, and the motor rotates in
reverse. When the window lock SW is pushed to the lock side, the ground circuit to the front passenger's SW becomes
open. As a result, even if Open/Close operation of the front passenger's window is tried, the current from TERMINAL 12 of
the power window control SW is not grounded and the motor does not rotate, so the front passenger's window can not be
operated and window lock occurs.
3. MANUAL OPERATION (REAR LH, RH SW)
With the power window control SW pulled to the up side, current flowing from TERMINAL 4 of the power window control SW
to TERMINAL 3 to TERMINAL 1 of the power window motor to TERMINAL 2 to TERMINAL 1 of the power window control
SW to TERMINAL 2 to TERMINAL (A) 11 or (A) 14 of the power window master SW to TERMINAL (A) 4 to GROUND and
causes the power window motor to rotate in the up direction. Up operation continues only while the power window control
SW is pulled to the up side. When the window descends, the current flowing to the motor flows in the opposite direction, from
TERMINAL 1 to TERMINAL 2, and the motor rotates in reverse. When the window lock SW is pushed to the lock side, the
ground circuit to the rear LH, RH window becomes open. As a result, even if Open/Close operation of the rear LH, RH
window is tried, the current from TERMINAL (A) 4 of the power window master SW is not grounded and the motor does not
rotate, so the rear LH, RH window can not be operated and window lock occurs.
4. STOPPING OF AUTO DOWN (DRIVER'S WINDOW)
When the manual SW (Power window master SW) is pulled to the up side during auto down operation, a ground circuit
opens in the master SW and current does not flow from TERMINAL (A) 1 of the power window master SW to TERMINAL (A)
4, so the motor stops, causing auto down operation to stop. If the manual SW is pulled continuously, the motor rotates in the
up direction in manual up operation.
5. STOPPING OF AUTO DOWN (FRONT PASSENGER'S WINDOW)
When the manual SW (Power window master SW or power window control SW front RH) is pulled to the up side during auto
down operation, a ground circuit opens in the control SW and current does not flow from TERMINAL 1 of the power window
control SW front RH to TERMINAL 12, so the motor stops, causing auto down operation to stop. If the manual SW is pulled
continuously, the motor rotates in the up direction in manual up operation.
6. STOPPING OF AUTO UP (DRIVER'S WINDOW)
When the manual SW (Power window master SW) is pushed to the down side during auto up operation, a ground circuit
opens in the master SW and current does not flow from TERMINAL (A) 2 of the power window master SW to TERMINAL (A)
4, so the motor stops, causing auto up operation to stop. If the manual SW is pushed continuously, the motor rotates in the
down direction in manual down operation.
7. STOPPING OF AUTO UP (FRONT PASSENGER'S WINDOW)
When the manual SW (Power window master SW or power window control SW front RH) is pushed to the down side during
auto up operation, a ground circuit opens in the control SW and current does not flow from TERMINAL 6 of the power
window control SW front RH to TERMINAL 12, so the motor stops, causing auto up operation to stop. If the manual SW is
pushed continuously, the motor rotates in the down direction in manual down operation.
2002 4RUNNER (EWD471U)
114
8. AUTO DOWN OPERATION (DRIVER'S WINDOW)
With the ignition SW on and with the auto SW of the power window master SW in DOWN position, current flowing to
TERMINAL (A) 10 of the power window master SW to TERMINAL (A) 2 to TERMINAL 2 of the power window motor front LH
to TERMINAL 1 to TERMINAL (A)1 of the power window master SW to TERMINAL (A) 4 to GROUND, causing the motor to
rotate towards the down side. Then the solenoid in the power window master SW is activated and it locks the auto SW being
pushed, causing the motor to continue to rotate in auto down operation. When the window has completely descended, the
current flow between TERMINAL (A) 1 of the power window master SW and TERMINAL (A) 4 increases. As a result, the
solenoid stops operating, the auto SW turns off and flow from TERMINAL (A) 10 of the power window master SW to
TERMINAL (A) 2 is cut off, stopping the motor so that auto stop occurs.
9. AUTO DOWN OPERATION (FRONT PASSENGER'S WINDOW)
With the ignition SW on and with the auto SW of the power window master SW or power window control SW front RH in
DOWN position, current flowing to TERMINAL 7 of the power window control SW front RH to TERMINAL 6 to TERMINAL 1
of the power window motor front RH to TERMINAL 2 to TERMINAL 1 of the power window control SW front RH to
TERMINAL 12 to GROUND, causing the motor to rotate towards the down side. Then the solenoid in the power window
control SW front RH is activated and it locks the auto SW being pushed, causing the motor to continue to rotate in auto down
operation. When the window has completely descended, the current flow between TERMINAL 6 of the power window control
SW front RH and TERMINAL 12 increases. As a result, the solenoid stops operating, the auto SW turns off and flow from
TERMINAL 7 of the power window control SW front RH to TERMINAL 6 is cut off, stopping the motor so that auto stop
occurs.
10. AUTO UP OPERATION (DRIVER'S WINDOW)
With the ignition SW on and with the auto SW of the power window master SW in UP position, current flowing to TERMINAL
(A) 10 of the power window master SW to TERMINAL (A) 1 to TERMINAL 1 of the power window motor front LH to
TERMINAL 2 to TERMINAL (A) 2 of the power window master SW to TERMINAL (A) 4 to GROUND, causing the motor to
rotate towards the up side. Then the solenoid in the power window master SW is activated and it locks the auto SW being
pulled, causing the motor to continue to rotate in auto up operation. When the window has completely descended, the
current flow between TERMINAL (A) 2 of the power window master SW and TERMINAL (A) 4 increases. As a result, the
solenoid stops operating, the auto SW turns off and flow from TERMINAL (A) 10 of the power window master SW to
TERMINAL (A) 1 is cut off, stopping the motor so that auto stop occurs.
11. AUTO UP OPERATION (FRONT PASSENGER'S WINDOW)
With the ignition SW on and with the auto SW of the power window master SW or power window control SW front RH in UP
position, current flowing to TERMINAL 7 of the power window control SW front RH to TERMINAL 1 to TERMINAL 2 of the
power window motor front RH to TERMINAL 1 to TERMINAL 6 of the power window control SW front RH to TERMINAL 12 to
GROUND, causing the motor to rotate towards the up side. Then the solenoid in the power window control SW front RH is
activated and it locks the auto SW being pulled, causing the motor to continue to rotate in auto up operation. When the
window has completely descended, the current flow between TERMINAL 6 of the power window control SW front RH and
TERMINAL 12 increases. As a result, the solenoid stops operating, the auto SW turns off and flow from TERMINAL 7 of the
power window control SW front RH to TERMINAL 1 is cut off, stopping the motor so that auto stop occurs.
12. KEY OFF POWER WINDOW OPERATION
With the ignition SW turned from on to off, the body ECU operates and current flows from the POWER fuse to TERMINAL 3
of the body ECU to TERMINAL 2 to TERMINAL 1 of the PWR relay to TERMINAL 2 to GROUND for about 43 seconds. The
same as normal operation, the current flows from the POWER fuse to TERMINAL 5 of the PWR relay to TERMINAL 3 to
TERMINAL (A) 10 of the power window master SW, TERMINAL 4 (Rear LH, RH) of the power window control SW and signal
input in to the TERMINAL 11 of the power window control SW front RH. As a result, for about 43 seconds after the ignition
SW is turned off, it is possible to raise and lower the power window by the functioning of this ECU. Also, by opening the front
door LH (the door courtesy SW front LH on) within about 43 seconds after turning the ignition SW to off, a signal is input to
TERMINAL (A) 19 of the body ECU. As a result, the ECU turns off and up and down movement of the window stops.
Furthermore, front RH, rear LH, RH window operate the same as the above circuit.
13. CATCHING PREVENTION FUNCTION (DRIVER'S, FRONT PASSENGER'S WINDOW)
When any foreign matter is caught in the window during power window auto up operation, the pulse sensor in the power
window motor detects the changes in the number of motor rotations and forcibly opens the door window 50 mm, or when the
window opening is less then 200 mm, it opens the window until the opening is 200 mm.
2002 4RUNNER (EWD471U)
115
POWER WINDOW
SERVICE HINTS
B16 (A) BODY ECU
3-GROUND : Always approx. 12 volts
10-GROUND : Approx. 12 volts with ignition SW at ON position
(A)19-GROUND : Continuity with front LH door opened
8-GROUND : Always continuity
PWR RELAY
5-3 : Closed with ignition SW on and stays at 12 volts for 43 seconds after the ignition SW is turned off,
but if a door is opened in this 43 seconds period, voltage will drop to 0 volts
D16 DOOR COURTESY SW FRONT LH
1-GROUND : Continuity with door opened
P4 POWER WINDOW CONTROL SW FRONT RH
7-GROUND : Always approx. 12 volts
12-GROUND : Always continuity
P5, P6 POWER WINDOW CONTROL SW REAR LH, RH
4-GROUND : Approx. 12 volts with ignition SW on and stays at 12 volts for 43 seconds after the ignition SW is turned off,
but if a door is opened in this 43 seconds period, voltage will drop to 0 volts
P7 (A) POWER WINDOW MASTER SW
(A) 4-GROUND : Always continuity
(A)10-GROUND : Approx. 12 volts with ignition SW on and stays at 12 volts for 43 seconds after the ignition SW
is turned off, but if a door is opened in this 43 seconds period, voltage will drop to 0 volts
(A) 3-GROUND : Always approx. 12 volts
WINDOW LOCK SW
Open with window lock SW at LOCK position
: PARTS LOCATION
Code See Page Code See Page Code See Page
B16 A 30 J11 B 31 P8 33
D16 32 P4 33 P9 33
J4 31 P5 33 P10 33
J9 31 P6 33 P11 33
J10 A 31 P7 A 33 P26 B 33
,,,
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
1C
24 Cowl Wire and Driver Side J/B (Lower Finish Panel)
1J
3E 26 Cowl Wire and Center J/B (Near the Steering Column Tube)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IF1
38 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IF2
IK1 40 Front Door RH Wire and Cowl Wire (Right Kick Panel)
BW1 42 Rear Door LH Wire and Cowl Wire (Left Center Pillar)
BX1 42 Rear Door RH Wire and Cowl Wire (Right Center Pillar)
: GROUND POINTS
Code See Page Ground Points Location
IE 38 Cowl Side Panel LH
IF 38 Cowl Side Panel RH
2002 4RUNNER (EWD471U)
116
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I1 I23
40 Cowl Wire 40 Cowl Wire
I5 I24
2002 4RUNNER (EWD471U)
117
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