Toyota Sequoia (2005). Manual — part 502
I28454
D22
Driver Door ECU
P6
Power Window Motor
Front LH
Pulse Sensor
SGND
PLS
4
3
W–B
L–R
5
3
–
DIAGNOSTICS
DRIVER DOOR CONTROL SYSTEM
DI–1803
1997
Jam protection pulse sensor circuit
CIRCUIT DESCRIPTION
The jam protection pulse sensor, built in the power window motor, outputs a ON/OFF pulse when the motor
rotates.
WIRING DIAGRAM
DI1PL–09
DI–1804
–
DIAGNOSTICS
DRIVER DOOR CONTROL SYSTEM
1998
INSPECTION PROCEDURE
1
Check the jam protection pulse sensor circuit using DTC check (See page
).
CHECK:
Check if DTC B1232 of the multiplex communication system is output.
OK:
DTC is not output.
OK
Proceed to next circuit inspection shown in
problem symptoms table (See page
NG
2
Check jam protection pulse sensor (See page
).
NG
Replace the power window motor.
OK
3
Check wire harness and connector between jam protection pulse sensor and
driver door ECU (See page
NG
Repair or replace wire harness or connector.
OK
Proceed to next circuit inspection shown in
problem symptoms table (See page
).
I24364
D22
Driver Door ECU
P4 Power Window
Control SW Rear RH
F18
Front Passenger Door ECU
F10
Fusible Link Block
P3 Power Window Control
SW Rear LH
E
B
L–O
5
W–B
PWR No. 4
R–L
WLSW
U
D
3
5
2
4
BC1
A
J46
L–O
L–O
13
BC1
W–B
U
D
5
2
G
R
2
1
B
L–Y
5
BA1
L–Y
G
J30
L–Y
7
1G
8
1F
16
1F
PWR No. 3
3
5
2
1
1
1L
9
1F
E
J6
E
J7
E
J6
7
R–L
R–L
R–L
II1
LSW
W–B
Battery
J8
J/C
IE
A
W–B
BK
W
8
5
B
BA1
13
W–B
BH
ALT
G
R
2
1
3
E
Power Main Relay
Instrument Panel J/B
J/C
P9
Power
Window
Motor
Rear
RH
P8
Power
Window
Motor
Rear
LH
7
4
5
N
J/C
J/C
E
J29
J47
–
DIAGNOSTICS
DRIVER DOOR CONTROL SYSTEM
DI–1805
1999
Window lock switch circuit
CIRCUIT DESCRIPTION
The window lock switch circuit can be checked using the DTC check (refer to
The window lock switch is built in the driver door ECU. Voltage applied to the WLSW terminal of the driver
door ECU is shut off when the window lock switch is turned to the LOCK position. Thus the power main relay
stops power supply to the other power window control switches.
WIRING DIAGRAM
DI1PE–15
DI–1806
–
DIAGNOSTICS
DRIVER DOOR CONTROL SYSTEM
2000
INSPECTION PROCEDURE
HINT:
When using the hand–held tester, start the inspection from step 1 and when not using the hand–held tester,
start from step 2.
Check if DTC B1221 of the multiplex communication system is output. When the DTC is not output, proceed
to the following procedures and when it is output, perform inspection (see page
).
1
Check window lock switch using hand–held tester.
PREPARATION:
(a)
Connect the hand–held tester to the DLC3.
(b)
Turn the ignition switch ON.
CHECK:
According to the display on the tester, read the DATA LIST.
D–DOOR:
Item
Measurement Item/Dis-
play (Range)
Normal Condition
Diagnostic Note
LOCK POS SW
Lock position SW signal/
ON or OFF
ON: Door lock is in unlock position
OFF: Door lock is in lock position
–
OK:
Indication on the tester switches between ON and OFF in accordance with the window lock
switch status.
OK
Proceed to next circuit inspection shown in
problem symptoms table (See page
NG
2
Check power main relay (See page
NG
Replace power main relay.
OK
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