2001 TOYOTA SEQUOIA wiring diagram

I28377
w/o Navigation System:
R19
Radio Receiver AssyRear Seat Audio Controller
RMUT
ID2 19
R2411
RMU11
LG R±W
I28377
w/ Navigation System:
R27
Radio and Navigation AssyRear Seat Audio Controller
RMUT
ID2 19
R2411
RMUT11
LG R±W DI±2066
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
2260 Author: Date:
2005 SEQUOIA (RM1146U)
Mute signal circuit (to rear seat audio controller)
CIRCUIT DESCRIPTION
This circuit sends the signal to the rear seat audio controller to mute the noise. Because of that, the noise
produced by changing the sound source ceases.
If there is an open in the circuit, noise can be heard from the speaker when changing the sound source.
If there is a short in the circuit, even though the rear seat audio controller is normal, no sound or only extreme-
ly small sound can be produced.
WIRING DIAGRAM
DIDAO±01

I28600
w/ Navigation System:
Radio and Navigation AssyRear Seat Audio Controller
R±R+
ID2 15
9
W W R27
R±R± 16
R248
W G
R±L+ 17
R247
W B
R±L± 18
R24
W
R
SG1 14
R24106 9
8
7
106 R±R+
R±R±
R±L+
R±L±
RSLD
(Shielded)
(Shielded) ID2
ID2
ID2
ID2R24
R27
R27
R27
R27 DI±2070
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
2264 Author: Date:
2005 SEQUOIA (RM1146U)
Sound signal circuit (Radio receiver assy / radio and navigation
assy ± rear seat audio controller)
CIRCUIT DESCRIPTION
The radio receiver assy (radio and navigation assy) sends a sound signal to the rear seat audio controller
through this circuit.
The sound signal that has been sent is amplified by the stereo component amplifier assy, and then sent to
the speaker.
If there is an open or short in the circuit, sound can not be heard from the speaker even if there is no malfunc-
tion in the rear seat audio controller or speaker.
WIRING DIAGRAM
DIDAP±01

I28601
H10
Headphone Terminal LHRear Seat Audio Controller
HP1R
ID2R243
BR W
HP1L ID2
R242
BR B
SGN1
ID2R241 3
2
1
(Shielded) (Shielded) BR
BR HPR
HPL
SGND
(Shielded)IF38
7
6
H11
Headphone Terminal RH
HP2R
ID2R2415
BR W
HP2L
ID2
R2414
BR B
SGN2
ID2R2413 19
18
17
(Shielded) (Shielded) BR
BR HPR
HPL
SGND
(Shielded)20
19
18 1
2
3
1
2
3IF3
IF3
IF3
IF3
IF3
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
DI±2073
2267 Author: Date:
2005 SEQUOIA (RM1146U)
Sound signal circuit (Rear seat audio controller ± headphone ter-
minal)
CIRCUIT DESCRIPTION
Music sound which is heard via the headphone terminal of the rear seat audio system is directly sent to the
headphones without being sent through the stereo component amplifier.
WIRING DIAGRAM
DIDAQ±01

DIDB4±01
I28485
Multi±display
Controller Sub±assy R25
Television Display Assy
IF4
ACC
GND8
7
IF4
IF41Y
LG
Y1
2
6+B2
ACC2
GND1 BU+B
ID28
7
ID2
ID21R21
R21
R21 Y
LG
Y Y
LG
Y 8
7
1
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2107
2301 Author: Date:
2005 SEQUOIA (RM1146U)
CIRCUIT INSPECTION
Power source circuit (Television display assy)
CIRCUIT DESCRIPTION
This circuit provides power to the television display assy. The power is sent from the battery to the television
display assy through the multi±display controller sub±assy.
WIRING DIAGRAM

I28486
J/C Sub J/B No.3
R2332 Multi±display Controller Sub±assy
ACC
R2316
+B1
R2329
GND IF3
1
IFC
4 3A36
ACC
Cut Relay
B 1
I18
Ignition SW12
12 3A W±R
W±R
1To ECM
IA126
L±R L±R
2D1
2C8Engine Room J/B
RAD No. 1
ECU±BShort Pin 3
W±L2
W±R 1C
3
1E 1J
W
IL1
IC6AM1
8
F10
FL Block
ALT
54
B
Battery
IM13
LG GR GR
L±Y GR
2 2 Engine Room R/B No. 2
Y
IF33
W±B 3AW±R
1
IF3
22B
P
3
ACCAM1
BB 1 2 W±LB±O
J37 J38
L±YY
RAD No. 2 1Instrument Panel J/B
2
1RSE
2C P DI±2110
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2304 Author: Date:
2005 SEQUOIA (RM1146U)
Power source circuit (Multi±display controller sub±assy)
CIRCUIT DESCRIPTION
This circuit provides power to the multi±display controller sub±assy.
WIRING DIAGRAM
DIDB5±01

I28487
Multi±display
Controller Sub±assy D23
Disc Player Controller
ACC
GND12
11
15+BACC3
GND4 +BR22
R22
R22 LGLG
LG 19
20
16 DI±2112
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2306 Author: Date:
2005 SEQUOIA (RM1146U)
Power source circuit (Disc player controller)
CIRCUIT DESCRIPTION
This circuit provides power to the disc player controller. The power is sent from the battery to the disc player
controller through the multi±display controller sub±assy.
WIRING DIAGRAM
DIDB6±01

I28665
(Shielded)R2
G2
B2
VR2
VG2
(Shielded)R21 16
15
14
12
1124 1613
14
15
17
18 R21 R21 R21 IF4 ID2
R21 R
G
B
VR
VGB
B
B
B B
B
B
B15
IF4
14
IF4
12
IF4
11
IF4 23
ID2
22
ID2
20
ID2
19
ID2
(Shielded)B
B
B
B R25
Television Display AssyMulti±display Controller Sub±assy
1321 1316
IF4 ID2
R21 SYNC
B B BSYN2
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2115
2309 Author: Date:
2005 SEQUOIA (RM1146U)
Display signal circuit (Multi±display controller sub±assy ± Televi-
sion display assy)
CIRCUIT DESCRIPTION
This is the display signal circuit from the multi±display controller sub±assy to the television display assy.
WIRING DIAGRAM
DIDB7±01

I28666
Multi±display
Controller Sub±assy
NTS2
SGN2
SG9 R228
R229
R2210 BR
BR NTSC
S.GND
SLD3
2
1
(Shielded) D23
Disc Player Controller
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2117
2311 Author: Date:
2005 SEQUOIA (RM1146U)
Display signal circuit (Multi±display controller sub±assy ± Disc
player controller)
CIRCUIT DESCRIPTION
This is the display signal circuit from the disc player controller to the multi±display controller sub±assy.
WIRING DIAGRAM
DIDB8±01