2001 TOYOTA SEQUOIA wiring diagram

I28435
Back Door ECU
P 1
2L±R R16
Rear Wiper Motor
L±B3
3
L±WW
SGND 12
18
B10 B10 B10
P
E W
± DIAGNOSTICSBACK DOOR CONTROL SYSTEM
DI±1885
2079 Author: Date:
2005 SEQUOIA (RM1146U)
Rear wiper limit switch circuit
CIRCUIT DESCRIPTION
The rear wiper limit switch is built in to the rear wiper motor. The W built in switch of the rear wiper motor is
ON when the rear wiper arm is in the position between stop and reverse and OFF when the rear wiper arm
is in any other position. The P built in switch of the rear wiper motor is OFF when the rear wiper arm is in
any position except stored and ON when the rear wiper arm is in the stored position.
WIRING DIAGRAM
DI94J±04

I28467
F18
Front Passenger Door ECUD22
Driver Door ECU
Body ECU
J/C
I18
Ignition Switch
Instrument Panel J/B
Sub J/B No. 3
F10
FL Block
Sub J/B No. 3Instrument Panel J/B
Engine Room R/B J8
J/C
Battery
IEECU±B
Short Pin
ECU±IG
AM1
PWR No. 1 J/CB7 IB1
II2
J6 J7
J37 J38IB1
IB1
IB1
3C 3A 1F 1C
1L
1E 1J
2D 2C1C
1F
3C 3A ALTIG1 AM1IB1MPX1
MPX2
GND
SIGCPUB
BDR MPX2
MPX1W±L
W±R
L±W G±B
W±B
B±RW±L
G±B
G±B
W±B
B±RW±R
W±L
B±Y
B±RB±R
W±L
L±W
W±RW
W±R
W±R BBD
AF
AA48
9 1122
23
251 3
13 20
13 8
21
88 4 4
1
1 6
12
48 5
11 23
1821
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1909
2103 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

I28468
MPX2MPX1 D22
Driver Door ECU
Back Door ECU
IB1F18
Passenger
Door ECU
J/CII2
BF1 BD2 B11
J37 J38J/CJ34 J33 II2
II2MPX2
MPX1
SIG
BDR
GND F18 F18
F18 F18
F18 F18
F18 F18
F18 F18
F18 F18 G±B
B
B±R G±B G±B
BB B B
B±R
B±R
B±R B±Y
W±L
L±Y
L±Y
B
W±R
W±R
W±R
W±R
W±B A J12
J/C
Battery
IFII2
II2 Sub J/B No. 3
3D 3A11
611
13 8(*1) (*2) 23 12(*1) (*2) 2520
(*1)(*2) 21 19(*1) (*2) 20 10(*1) (*2) 811(*1) (*2)
Engine Room J/B
ECU±B
Short Pin
2D 2C18Instrument Panel J/B
1E 1J2 3II2 F10
Fusible Link Block
ALT
48 5Instrument Panel J/B
ECU±IG
AM1
PWR No. 2 1F 1C
1L 1C
1F 44
1
176
12 Sub J/B No. 3
3C 3A88I18
Ignition SW
IG1 AM14 8
8 2 1
14AG
2 7
(*1): w/ Driving Position Memory
(*2): w/o Driving Position Memory20
AA
3
B1
W±BCPUB W DI±1912
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2106 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

I28465
D22
Driver Door ECU
S19
Sliding Roof
Control ECU
Combination MeterI19
A/C ECU
(Integration Control and Panel)
Memory Seat ECU
& SwitchBody ECU
J/C
Back Door ECU
F18
Passenger
Door ECUInstrument Panel J/B
J/CIB1
1M 1GB7
B7
B5
M6 C5
II2J33 J34 BI2
BD2 BF1
B11 C5
C5
B11 J33 J34
BD2 BF1 II2 J33 J34 IB1MPX1
MPX2 MPX3 MPX1MPX2
MPX1
MPX1
MPX2 MPX1
MPX2
MPX1MPX±MPX+ W±L
G±B
G±O
LG±B L±Y
LG±RWW±L
G±O
W
LG±RLG±R
BLG±R
BBB B B
A G H A
G W
(*2)
10
8 11 (*2)
21
14762 4
G±B171 3 1324 31
32
30 8(*3)
(*1)
(*1) (*1)(*3) 3
9
1220 22
8
20
2
G±B
(*1): w/ Driving Position Memory
(*2): w/o Driving Position Memory
(*3): w/ Sliding Roof 8 (*1)(*1)
20
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1915
2109 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM

I15555
Body ECU W2
Wireless Door Lock
Control Receiver
2PRG
RDA 4 5
V
R±G 3
B5 PRG
RDAB5
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1933
2127 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1242 Wireless door lock tuner circuit mal-
function
CIRCUIT DESCRIPTION
This DTC is indicated when ground short of the RDA terminal is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1242Ground short of RDA circuit

Wireless door lock control receiver

Wire harness

Body ECU
WIRING DIAGRAM
DI638±10

I26946
Airbag Sensor Assembly Body ECU
A2018
GSW16
B6GSW Instrument Panel J/B
1A7
1B3
GR±R
B
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1935
2129 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1243 GSW terminal circuit malfunction
CIRCUIT DESCRIPTION
This DTC is indicated when open or ground short of the GSW terminal is detected.
DTC No.DTC Detection ConditionTrouble Area
B1243Open or ground short of GSW circuit

Airbag sensor assembly

Wire harness

Body ECU
WIRING DIAGRAM
DI1T3±09

I24369
A27
Automatic Light Control
Sensor
B6 12
CLTB CLTS
CLTEBody ECU
R±GY
1 4
34
3
BRB6
B6 CLTB CLTS
CLTE
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1937
2131 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1244 Light sensor circuit malfunction
CIRCUIT DESCRIPTION
This DTC is indicated when failure of the light sensor circuit is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1244
Malfunction of automatic light control sensor

Open or short in automatic light control sensor circuit
Automatic light control sensor

Wire harness

Body ECU
WIRING DIAGRAM
DI639±08

I28469
I19
Integration Control
and Panel
Body ECU
I18
Ignition SW Combination Meter
F10
FL Block
To Ignition
Switch J43
J/C
IG BatteryDOME ALTAM1CIG
ACC
AM1
Short Pin
J/CMPX±
ACC
+B MPX+ MPX2
IG+
GND C5
B5
J15
1E
1L
1JJ15
1E1C
1C
2D 2C3A 3E
3A 3E
O BR WW±L
O BRPP
P
R
R±L
R±L L±Y LG±B
DD 32
2413
3
11
31 1
1
8 6 20
1
52 8 5
4
13
6 6 16
151
2
10 Instrument Panel J/B
Engine Room J/BSub J/B No.3
AA
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1941
2135 Author: Date:
2005 SEQUOIA (RM1146U)
WIRING DIAGRAM