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POWER WINDOW (REAR), REAR WIPER AND WASHER
FROM POWER SOURCE SYSTEM (SEE PAGE 48)
B16 A
BODY ECU
15A 25A
ACC WIPER
WIP ACC UP DOWN R/W ON R/W INT WMTR KSW GND
9 9 A 5 A 4 A 20 A 21 A 13 2 A 8
11 1G
8 1H 8 1J
GR
GR- G
GR- R
W- B
Y- R
R- B
LG
R
BACK WINDOW CONTROL SW
[CENTER CLUSTER SW] 2 1
3 A (* 4)
WASHER MOTOR
5 B (* 3) A
DOWN
B
J6
UP
M JUNCTION
W1 A ,
CONNECTOR
6 4 A (* 4) A
C23
4 B (* 3)
L- W
A
L- W A J5
JUNCTION
Y- R
(*1) CONNECTOR
P
A
2
L- W
(*2)
D11
DIODE
(BACK WINDOW)
UNLOCK WARNING SW
10 2
3 1 B5 10 13 12
BACK WINDOW
LOCK SW
(*1)
(*1)
G
Y
WASHER
7 OFFL 1
U1
W- B
8 IF2 7 IF2
(* 2)
INT
ON
19 3E
(*1)
(*1)
G
Y
WASHER
13 14 C15 2
RRU RRD P 7 REAR WIPER AND
16 3E 21 3E WASHER SW
WINDOW LOCK SW [COMB. SW]
[POWER WINDOW
E MASTER SW]
W- B
W- B
4 W- B
W- B
W- B
W- B
(* 1)
I13
1 IF2
W- B
(*1)
W- B
W- B
A A
J9 W- B A J4
JUNCTION JUNCTION
CONNECTOR (* 1) CONNECTOR
IF IE
2002 4RUNNER (EWD471U)
172
FROM POWER SOURCE SYSTEM (SEE PAGE 48)
B16 A
BODY ECU 1 1
30A 10A 15A
POWER ECU- IG MPX- B
MPX1 ECU- B ECU- IG POWER
7 A 10 A 10 3 2 2
2
L- R
L- R
4 1C 2 1G
13 IG1
Y
L
L- R L- R
V- W
I1
3 3C
* 1 : W/ POWER WINDOW
* 2 : W/O POWER WINDOW
* 3 : W/ DAYTIME RUNNING LIGHT
* 4 : W/O DAYTIME RUNNING LIGHT
L- R
2 3C
Y
L
8 IE2 2 IE1 6 IE1 11 IE2
V- W
L- R
Y
L
4 BR2 8 BR1 1 BR2 6 BR1
V- W
L- R
Y
L
5 BS1 8 BS1 5 BS2 6 BS1
V- W
L- R
Y
L
Y
L
L- R
V- W
2002 4RUNNER (EWD471U)
173
POWER WINDOW (REAR), REAR WIPER AND WASHER
B18
BACK DOOR ECU
IG POWE ECU- B MPX1 WIP- WIP+ LMT2 LMT1
3 1 2 18 24 25 22 23
GR- R
V- W
L- R
L- B
L- Y
GR
Y
L
1 3 4 6
RETURN
POSITION
M FURTHEST
POSITION
STOP
P W
R19 5
REAR WIPER MOTOR
W- B
Y
L
L- R
3
V- W W- B W- B W- B
BS1 B9
W- B
3 BR1
W- B
BH
2002 4RUNNER (EWD471U)
174
B18
BACK DOOR ECU
CLS OPN LMTW GND CLSM OPNM BZR1 BZR2
9 10 13 26 11 12 5 4
P- G
P- B
3 BS2 4 BS2
W- B
G- R
G- Y
R- L
G
R
P- G
P- B
BACK WINDOW LIMIT SW
TAILGATE CONTROL SW
1 2 1 1 2 2 BR2 3 BR2
M
DOWN
B12
BACK WINDOW MOTOR
UP
P- G
P- B
3 2
B11
T4
16 IE2 5 IE2
P- G
P- B
1 2
W- B
W- B
W- B
K4
KEYLESS BUZZER
W- B W- B
B9 B9
2002 4RUNNER (EWD471U)
175
POWER WINDOW (REAR), REAR WIPER AND WASHER
SYSTEM OUTLINE
Current always flows through the POWER fuse to TERMINAL 3 of the body ECU and TERMINAL 1 of the back door ECU.
With the ignition SW turned on, the WIPER fuse to TERMINAL 9 of the body ECU, the ECU-IG fuse to TERMINAL 10 of the
body ECU and TERMINAL 3 of the back door ECU.
1. REAR POWER WINDOW MANUAL OPERATION (BACK WINDOW CONTROL SW)
When the back window control SW is pushed to the up side (With the ignition SW on), an "ON" signal is input from
TERMINAL 2 of the back window control SW to TERMINAL (A) 5 of the body ECU to TERMINAL (A) 7 to TERMINAL 18 of
the back door ECU. Thus, the back door ECU is activated and the current to TERMINAL 1 of the back door ECU flows to
TERMINAL 26 of the back door ECU to GROUND so that the current to back window motor flows from TERMINAL 1 of the
back door ECU to TERMINAL 11 to TERMINAL 1 of the back window motor to TERMINAL 2 to TERMINAL 12 of the back
door ECU to TERMINAL 26 to GROUND. This causes the back window motor to rotate toward the up side and the window
ascends only while the back window control SW is being pushed.
To lower the window, the signal input from TERMINAL 1 of the back window control SW to TERMINAL (A) 4 of the body ECU
to TERMINAL (A) 7 to TERMINAL 18 of the back door ECU. Causes current to the back window motor to flow from
TERMINAL 1 of the back door ECU to TERMINAL 12 to TERMINAL 2 of the back window motor to TERMINAL 1 to
TERMINAL 11 of the back door ECU to TERMINAL 26 to GROUND, so the current flows in the revers direction to manual up
operation and causes the motor to rotate in the opposite direction, thus lowering the window.
When the back window lock SW is pushed the lock side, the ground circuit of the back window control SW becomes open.
Thus even if the driver operates the Open/Close function of the power window (Rear), the power window (Rear) will not
operate because the back door ECU dose not receive the on signal and the back door ECU does not operate.
2. REAR POWER WINDOW MANUAL OPERATION (TAILGATE CONTROL SW)
When the tailgate control SW to the up side a signal is input to TERMINAL 9 of the back door ECU from TERMINAL 1 of the
tailgate control SW. This activates the back door ECU regardless of whether the ignition SW is on or off, and the current
flows from TERMINAL 1 of the back door ECU to TERMINAL 26. So the current to the back window motor flows to
TERMINAL 1 of the back door ECU to TERMINAL 11 to TERMINAL 1 of the back window motor to TERMINAL 2 to
TERMINAL 12 of the back door ECU to TERMINAL 26 to GROUND and causes the back window motor to rotate in the up
direction so the back window ascends only while the tailgate control SW is being pushed to lower the window. The on signal
of the tailgate control SW (Rotate to down side) is input to TERMINAL 10, causing the current to the motor to flow to
TERMINAL 1 of the back door ECU to TERMINAL 12 to TERMINAL 2 of the back window motor to TERMINAL 1 to
TERMINAL 11 of the back door ECU to TERMINAL 26 to GROUND. This flow is the reverse of manual up, so the motor
rotates in the reverse direction and the window is lowered.
3. WIRELESS BACK WINDOW CONTROL
When the ignition SW is off, the back window can be opened by pressing the back window open SW of the transmitter for
approximately 0.8 seconds. At that time, the keyless buzzer beeps once.
4. REAR WIPER OPERATION
With ignition SW turned on and the back door window completely closed (Back window limit SW on), when the rear wiper
and washer SW is turned on, the signal is input from TERMINAL 10 of the rear wiper and washer SW to TERMINAL (A) 20 of
the body ECU to TERMINAL 7 to TERMINAL 18 of the back door ECU. Thus the back door ECU activates and the current
flows from TERMINAL 1 of the back door ECU to TERMINAL 25 to TERMINAL 3 of the rear wiper motor to TERMINAL 1 to
TERMINAL 24 of the back door ECU to TERMINAL 26 to GROUND and operates the rear wiper to the upper limit of the
wiping area. When the upper limit of the wiping area is reached, the point (Cam plate P point) on the wiper motor is turned on
(in the case, W point of cam plate is off), and the signal to reverse the rear wiper motor is input to TERMINAL 22 of the back
door ECU. The back door ECU stops the rear wiper motor for about 0.1 seconds and the current flows from TERMINAL 24 of
the back door ECU to TERMINAL 1 of the rear wiper motor to TERMINAL 3 to TERMINAL 25 of the back door ECU to
TERMINAL 26 to GROUND. As a result, the rear wiper motor reverses and stops the rear wiper before the retraction
position. At that time, the point (Cam plate W point) on the rear wiper motor is turned on (in this case, P point of cam plate is
off), and the signal to rotate the motor is input to TERMINAL 25 of the back door ECU to TERMINAL 3 of the rear wiper
motor to TERMINAL 1 to TERMINAL 24 of the back door ECU to TERMINAL 26 to GROUND and the rear wiper SW off, the
signal to TERMINAL 23 of the back door ECU from W point of cam plate is cancelled and the wiping function is continued
when P point is turned on. The rear wiper continues beyond the rear wiper area to the retraction position. At that time, P and
W points are turned on, the power window relay stops operating, and the current to the rear wiper is cut off to cam plate rear
wiper operation.
5. WASHER OPERATION
With the ignition SW turned on and back window closed completely (Back window limit SW on), when the rear wiper and
washer SW is turned strongly (Rear washer SW on), current flows from TERMINAL 9 of the body ECU to TERMINAL 13 to
TERMINAL 3 (w/o daytime running light), 5 (w/ daytime running light) of the washer motor to TERMINAL 4 to TERMINAL 12
of the rear wiper and washer SW to TERMINAL 2 to GROUND and causes the rear window washer emits a water spray only
while the rear washer SW is turned. When the rear wiper SW is off, and the rear wiper SW is then turned in the off direction,
washer liquid will also spray.
2002 4RUNNER (EWD471U)
176
SERVICE HINTS
T4 TAILGATE CONTROL SW
2-3 : Continuity with tailgate control SW at down side
1-3 : Continuity with tailgate control SW at up side
C15 REAR WIPER AND WASHER SW [COMB. SW]
12-2 : Continuity with rear wiper and washer SW at WASHER position
10-2 : Continuity with rear wiper and washer SW at ON position
B18 BACK DOOR ECU
3-GROUND : Approx. 12 volts with ignition SW at ON position
1-GROUND : Always approx. 12 volts
26-GROUND : Always continuity
11-GROUND : Approx. 12 volts with back window at UP operation
12-GROUND : Approx. 12 volts with back window at DOWN operation
9-GROUND : Continuity with tailgate control SW at UP position
10-GROUND : Continuity with tailgate control SW at DOWN position
B11 BACK WINDOW LIMIT SW
1-2 : Closed with back power window fully closed
R19 REAR WIPER MOTOR
4, 6-5 : Continuity with rear wiper retracted
4-5 : Continuity with rear wiper at RETURN position
: PARTS LOCATION
Code See Page Code See Page Code See Page
B5 30 D11 30 R19 33
B11 32 J4 31 T4 33
B12 32 J5 31 U1 31
B16 A 30 J6 31 A 29
W1
B18 32 J9 31 B 29
C15 30 K4 29
C23 30 P7 33
: RELAY BLOCKS
Code See Page Relay Blocks (Relay Block Location)
2 22 Engine Room R/B (Engine Compartment Left)
,,, : JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
,,,
,,,
Code See Page Junction Block and Wire Harness (Connector Location)
1C
1G
24 Cowl Wire and Driver Side J/B (Lower Finish Panel)
1H
1J
3C
26 Cowl Wire and Center J/B (Near the Steering Column Tube)
3E
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
Code See Page Joining Wire Harness and Wire Harness (Connector Location)
IE1
38 Cowl Wire and Floor No.2 Wire (Left Kick Panel)
No 2
IE2
IF2 38 Front Door LH Wire and Cowl Wire (Left Kick Panel)
IG1 38 Engine Room Main Wire and Cowl Wire (Left Kick Panel)
BR1
42 Back Door No 1 Wire and Floor No.2 Wire (Left Rear Side of Roof)
No.1 No 2
BR2
BS1
42 Back Door No.1 Wire and Back Door No.2 Wire (Back Door Left)
No 1 No 2
BS2
2002 4RUNNER (EWD471U)
177
POWER WINDOW (REAR), REAR WIPER AND WASHER
: GROUND POINTS
Code See Page Ground Points Location
IE 38 Cowl Side Panel LH
IF 38 Cowl Side Panel RH
BH 42 Left Quarter Panel Inner
: SPLICE POINTS
Code See Page Wire Harness with Splice Points Code See Page Wire Harness with Splice Points
I1 B9 42 Back Door No.2 Wire
40 Cowl Wire
I13
2002 4RUNNER (EWD471U)
178
MEMO
2002 4RUNNER (EWD471U)
179
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