Page 2281 of 4323
DIDAT±01
I27728
Radio and Navigation Assy (*1)
Radio Receiver Assy (*2)
Rear Door
SpeakerSteering Pad Switch
Instrument Panel J/B
RAD NO. 2 Fuse
ECU±B Fuse
AM1 FuseEngine Room J/B
RAD NO. 1 Fuse
RAD NO. 3 Fuse
Ignition Switch
Headphone
Terminal
Front Door
Speaker and
Woofer
Stereo Component Amplifier
Multi±display
Controller
Sub±assy
*1: w/ Navigation System
*2: w/o Navigation SystemVTR TerminalDisc Player
Controller
Rear Door
Speaker
Front Door
Speaker and
Woofer
Tweeter
Television Display Assy
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2079
2273 Author: Date:
2005 SEQUOIA (RM1146U)
LOCATION
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DIDAU±01
I28762
Radio and Navigation Assy
(*1)
or
Radio Receiver Assy (*2)
VTR
TerminalSpeakers Stereo Component
Amplifier Assy
Multi±display Controller
Wireless
HeadphoneDisplay Signal
Sound Signal
AVC±LAN
Headphone
Terminal
Switch AssyDisc
Player
ControllerTelevision
Display
Assy
*1: w/ Navigation System
*2: w/o Navigation System DI±2080
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2274 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM
Page 2283 of 4323

DIDAV±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2081
2275 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. Outline
As a unique feature of Rear Seat Entertainment (RSE) system, the front and rear seat occupants can
enjoy different audio±visual modes at the same time. Thus, this system offers enhanced entertainment
to the rear seat occupants.
The rear seat occupants can control the audio±visual modes with the remote controller (switch assy),
and listen to audio by using wired or wireless headphones.
The RSE system is controlled by the multi±display controller, and the communication among the audio
head unit, rear display assembly, and DVD player is established via an AVC±LAN (Audio Visual Com-
munication±Local Area Network).
2. Function of Main Component
Television Display Assy
Displays DVD and video images in accordance with video signals from the RSE ECU.
Receives signals from the remote controller and outputs them to the RSE ECU.
Outputs audio signals to the wireless headphones in the form of infrared signals.
Displays the audio±visual control screen.
Displays the adjustment screen.
Displays the diagnosis screen.
The diagnosis screen appears when the diagnosis mode is started on the audio head unit.
Audio Head Unit
w/ Navigation system:
Radio and navigation assy
w/o Navigation system:
Radio receiver assy
Outputs audio signals to the RSE ECU and the stereo component amplifier.
Outputs a request to the RSE ECU to start the diagnosis mode.
RSE ECU (Multi±display Controller)
Processes video and audio signals from the DVD player and video player and audio signals from the
audio head unit, and outputs them to the television display assembly and headphone terminals.
Controls the distribution of the audio±visual mode to the front (audio head unit) and the rear (RSE).
Remote Controller (Switch Assy)Outputs various control signals of the RSE system to the television display assembly in the form of in-
frared signals.
Wireless Headphone
Receives the audio signals from the television display assembly in the form of infrared signals.
Volume adjustment of the wireless headphone can be done by using the volume equipped on the wire-
less headphone.
Headphone TerminalOutputs audio signals to the wired headphones that are connected.
Adjusts the volume of the wired headphones in accordance with volume control.
VTR TerminalThis terminal is for connecting the video player's video and audio output terminals.
Page 2284 of 4323
I28687
Main AVC±LAN:
Sub AVC±LAN: Radio Receiver Assy (w/o Navigation System)
Radio and Navigation Assy (w/ Navigation System)
Disc
Player
Controller
(*2) (*1)(*2, 3)
Television
Display Assy (*2)
(*2)
(*2) Stereo
Component
AmplifierMulti±display
Controller (*2)
Rear Seat Audio
Controller (*3)
*1: Separate Type Amplifier
*2: w/ RSE System
*3: w/ RSA System
: AVC±LAN DI±2082
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2276 Author: Date:
2005 SEQUOIA (RM1146U)
3. COMMUNICATION SYSTEM
(a) This system has 2 kinds of AVC±LAN, Main AVC±LAN and Sub AVC±LAN.
(b) Multi±display controller sub±assy works as a master unit in the Sub AVC±LAN, but not in the Main
AVC±LAN.
Page 2285 of 4323
DIDAW±01
Vehicle brought into a workshop
4. Check the diagnostic trouble codes
DTC is not output (Go to step 6)
5. Diagnostic trouble code chart.
Go to step 7
7. Circuit inspection and part inspection
10. Perform confirmation test
ENDItems inside
are titles of pages in this manual,
with the page number in the bottom portion. See
the pages for detailed explanations.
P. DI±2097
P. DI±2107 ± DI±2157 P. DI±2103 1. Customer problem analysis
P. DI±2084
2. Problem Symptom Confirmation
Symptom does
not occur
Malfunction
code
6. Problem symptoms table
P. DI±2087
8. Identification of problem
Symptom occursGo to step 4
3. Symptom Simulation
P. IN±24
9. Repair or replace
Normal system
code
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2083
2277 Author: Date:
2005 SEQUOIA (RM1146U)
HOW TO PROCEED WITH TROUBLESHOOTING
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DIDAX±01
I28289
RSE SYSTEM Check Sheet
Inspector 's name:
Customer 's NameVIN
Production Date
Licence Plate No.
Odometer Reading / /km
mile
Frequency of Problem Occurrence / /
Constant Intermittent ( Times a day) Brought±in Date
Date of First Occurrence
Problem
Symptom
Headphone
DTC
Check
Parts name
DTC (1st time).DTC (2nd time). Switch Assy
Disc Player Controller Multi±display Controller Sub±assy
Television Display Assy
Disc Player Controller
Television Display Assy DI±2084
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2278 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMER PROBLEM ANALYSIS CHECK
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DIDAY±01
I28281
ºDiagnosis MENUº
to section
Press ENTER on
remote control
The entire screen is changed
to the color which is selected
in the color bar check mode. Select color by
remote control
operation
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2085
2279 Author: Date:
2005 SEQUOIA (RM1146U)
DISPLAY CHECK MODE
DISPLAY CHECK MODE
HINT:
Illustrations may differ from the actual vehicle depending on the device settings and options. There-
fore, some detailed areas may not be shown exactly the same as on the actual vehicle.
Display check mode is operated as follows.
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I28282
*2 *1
I28283
The entire screen is
changed to the color
which is selected in
the color bar check
mode.
Press ENTER
on remote
control Select color by
remote control
operation
I28284
DI±2086
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2280 Author: Date:
2005 SEQUOIA (RM1146U)
(a) Display Check Mode
DisplayContents
Color Bar Check/*1Color display is checked.
Remote Commander/*2Operating condition of remote command-
er display is checked.
HINT:
In Display Check Mode, above checks can be performed.
(b) Display Color Bar Check
(1) Start the Diagnosis System (See page DI±2097).
(2) Select ºMENUº.
(3) Select ºDisplay Checkº.
(4) Select ºColor Bar Checkº.
(5) Make sure that each color name is corresponding
to each color on the bar.
HINT:
Select Black, Red, Green, Blue, White and Stripe to display se-
lected colors and stripe on the entire screen.
(6) Compare the color with the Color Bar Check, and
make sure that the color is the same.
(c) Display Remote Commander Check
(1) Start the Diagnosis system (See page DI±2097).
(2) Select ºMENUº.
(3) Select ºDisplay Checkº.
(4) Select ºRemote Commanderº.
(5) Press each switch and make sure that it corre-
sponds to the display on the screen.