2001 TOYOTA SEQUOIA terminal TC

I28452
D22
Driver Door ECU P6
Power Window Motor
Front LH
DDN
DU 14
1 G
R 2
1 DI±1798
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
1992 Author: Date:
2005 SEQUOIA (RM1146U)
Power window motor circuit
CIRCUIT DESCRIPTION
The power window goes down when voltage is applied to terminal 2 of the power window motor, and the
window goes up when voltage is applied to terminal 1.
WIRING DIAGRAM
DI1PJ±09

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 LHE
B
L±O
5 W±B
PWR No. 4
R±L
WLSW U
D 3
5
24
BC1
A
J46L±O L±O 13
BC1 W±B
U
D5
2GR
2 1
BL±Y5
BA1L±YG
J30
L±Y
7
1G
8
1F
16
1F PWR No. 3 3
5
21 1
1L
9
1F
E
J6E
J7
E
J67
R±L
R±L
R±L
II1
LSW W±B
Battery
J8
J/CIE A W±B
BKW
85
B
BA1 13
W±B
BH ALTGR
2
1
3E
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
± DIAGNOSTICSDRIVER DOOR CONTROL SYSTEM
DI±1805
1999 Author: Date:
2005 SEQUOIA (RM1146U)
Window lock switch circuit
CIRCUIT DESCRIPTION
The window lock switch circuit can be checked using the DTC check (refer to DI±1904).
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

DIDER±01
DI±1814
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2008 Author: Date:
2005 SEQUOIA (RM1146U)
PASSENGER DOOR CONTROL SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77

DIDET±01
I18630
F18PASSENGER DOOR ECU
(w/o Driving Position Memory):
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1819
2013 Author: Date:
2005 SEQUOIA (RM1146U)
TERMINALS OF ECU
Symbols (Terminal No.)Wiring ColorTerminal De-
scriptionConditionSpecified Condition
BDR e GND
(20 e 8)L±Y e W±BBatteryAlways10 to 14 V
CPUB e GND
(12 e 8)W±R e W±BBatteryAlways10 to 14 V
SIG e GND
(19 e 8)B±R e W±BIgnition switchIgnition switch ON10 to 14 V
GND e Body Ground
(8 e Body ground)W±B e Body
GroundGroundAlwaysBelow 1 V
PLS e SGND
(17 e 18)L±R e W±BPower window
pulse sensorPower window is operatedPulse generation
PLS e SGND
(17 e 18)L±R e W±BPower window
pulse sensorPower window is not operated (Switch ON)Below 1 V
PLS e SGND
(17 e 18)L±R e W±BPower window
pulse sensorPower window is not operated (Switch OFF)10 to 14 V
LMT e SGND
(16 e 18)L±W e W±BPower window
limit switchFront passenger's door window not fully closed positionBelow 1 V
LMT e SGND
(16 e 18)L±W e W±BPower window
limit switchFront passenger's door window fully closed position10 to 14 V
PU e PDN
(1 e 9)R e GPower window
motor (UP)Ignition switch ON and front passenger's window switch
OFFBelow 1 V
PU e PDN
(1 e 9)R e GPower window
motor (UP)Ignition switch ON and front passenger's window switch
UP10 to 14 V
PDN e PU
(9 e 1)G e RPower window
motor (DOWN)Ignition switch ON and front passenger's window switch
OFFBelow 1 V
PDN e PU
(9 e 1)G e RPower window
motor (DOWN)Ignition switch ON and front passenger's window switch
DOWN10 to 14 V
MPX1 e ±
(10 e ±)B e ±Multiplex com-
munication lineMultiplex communication circuit±
MPX2 e ±
(11 e ±)G±B e ±Multiplex com-
munication lineMultiplex communication circuit±

I18633
F18PASSENGER DOOR ECU
(w/ Driving Position Memory): DI±1820
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2014 Author: Date:
2005 SEQUOIA (RM1146U) PKL e LSWE
(3 e 13)
LG±B e W±B
Door key lock
and unlock
switch (LOCK)
Door key lock and unlock switch LOCKBelow 1 V
PKL e LSWE
(3 e 13)LG±B e W±B
Door key lock
and unlock
switch (LOCK)
Door key lock and unlock switch OFF or UNLOCK10 to 14 V
PKUL e LSWE
(2 e 13)LG±R e W±B
Door key lock
and unlock
switch (UN-
LOCK)
Door key lock and unlock switch UNLOCKBelow 1 V
PKUL e LSWE
(2 e 13)LG±R e W±B
Door key lock
and unlock
switch (UN-
LOCK)
Door key lock and unlock switch OFF or LOCK10 to 14 V
LSWP e LSWE
(4 e 13)R±Y e W±BDoor unlock
detection switchFront passenger's door is locked10 to 14 V
LSWP e LSWE
(4 e 13)R±Y e W±BDoor unlock
detection switchFront passenger's door is unlockedBelow 1 V
LSW e GND
(7 e 8)R±L e W±BWindow lock
switchWindow lock switch position UNLOCKBelow 1 V
LSW e GND
(7 e 8)R±L e W±BWindow lock
switchWindow lock switch position LOCK10 to 14 V
CTYB e PCYL
(6 e 5)R e R±WDoor courtesy
light (Front RH)Front passenger's door closed10 to 14 V
CTYB e PCYL
(6 e 5)R e R±WDoor courtesy
light (Front RH)Front passenger's door openBelow 1 V
LSWE e Body ground
(13 e Body ground)W±B e Body
groundGroundAlwaysBelow 1 V
SGND e Body ground
(18 e Body ground)W±B e Body
groundGroundAlwaysBelow 1 V
Symbols (Terminal No.)Wiring ColorTerminal De-
scriptionConditionSpecified Condition
MPX1 e ±
(20 e ±)B e ±Multiplex com-
munication lineMultiplex communication circuitPulse generation
SIG e GND
(21 e 13)B±R e W±BIgnition switchIgnition switch ON10 to 14 V

± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
DI±1827
2021 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Check ECU±IG, AM1, PWR No. 5 and ECU±B fuse.
CHECK:
Check continuity of the ECU±IG, AM1, PWR No. 5 and ECU±B fuse.
OK:
Continuity
NG Replace the faulty fuse.
OK
2 Check voltage between terminals BDR, CPUB, SIG and GND of passenger door
ECU connector.
PREPARATION:
Turn the ignition switch ON.
CHECK:
Measure the voltage between terminals SIG and GND of the passenger door ECU of the wire harness side
connector.
OK:
Voltage: 10 to 14 V
PREPARATION:
(a) Turn the ignition switch OFF.
(b) Disconnect the passenger door ECU connector.
CHECK:
Measure the voltage between terminals BDR, CPUB and GND of the passenger door ECU of the wire har-
ness side connector.
OK:
Voltage: 10 to 14 V
OK Proceed to next circuit inspection shown in
problem symptoms table (See page DI±1818).
NG

I28438
D21
Door Key Lock and
Unlock SW Front RH
LSWE
PKUL
PKL 13
2
3 W±B
LG±R
LG±B 4
1
2Front Passenger
Door ECU
F18 F18
*1: w/ Driving Position Memory
*2: w/o Driving Position Memory(*1) (*2)
F18 F18
F18 F189
10
22 (*1) (*2)
(*1) (*2) DI±1832
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2026 Author: Date:
2005 SEQUOIA (RM1146U)
Door key lock and unlock switch circuit
CIRCUIT DESCRIPTION
The door key lock and unlock switch is built in the door lock motor. When the key is turned to the lock side,
terminal 2 of the switch is grounded and when the key is turned to the unlock side, terminal 1 of the switch
is grounded.
The door key lock and unlock switch can be checked using the DTC check (refer to DI±1904).
WIRING DIAGRAM
DI1Q9±09

I28440
G
R 1
2PDN
PU 9
1Front Passenger
Door ECU P7
Power Window Motor
Front RH
*1: w/ Driving Position Memory
*2: w/o Driving Position MemoryF18
F18
(*1) (*2)
1 14
F18
F18
(*1) (*2) DI±1836
± DIAGNOSTICSPASSENGER DOOR CONTROL SYSTEM
2030 Author: Date:
2005 SEQUOIA (RM1146U)
Power window motor circuit
CIRCUIT DESCRIPTION
The power window goes down when voltage is applied to terminal 1 of the power window motor, and the
window goes up when voltage is applied to terminal 2.
WIRING DIAGRAM
DI1QB±10