TOYOTA SEQUOIA 2001 Service Repair Manual

DIDB2±01
I28276
ºDiagnosis MENUº
to section
Recheck
History clearance
DTC memory clearance
DTC clear
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2099
2293 Author: Date:
2005 SEQUOIA (RM1146U)
CHECK MODE PROCEDURE
SERVICE CHECK MODE
HINT:
Service Check Mode is operated as follows.

I28277
*1
*2
*4*3*6
*5 *7
*8 *8
*8
DI±2100
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2294 Author: Date:
2005 SEQUOIA (RM1146U)
Service Check Mode
(1) Start the Diagnosis System (see page DI±2097).
Display ItemFunction
Components Name/*1
List of component names including op-
tional components (15 components
max.) are displayed. When the names
are not identified, their physical address-
es are displayed.
Check Result/*2Check results are displayed.
Memory Clear switch/*3
Pressing this switch for 3 sec. deletes all
the information about master component
registration.
DTC Clear switch/*4
Pressing this switch for 3 sec. deletes
diagnosis memory of all the components.
It deletes Service Check results and the
screen displaying the check results.
Recheck/*5Pressing this switch performs Service
Check again.
MENU/*6Pressing this switch activates the Diag-
nosis Menu screen.
LAN Monitor screen switch/*7
Pressing this switch activates the LAN
Monitor screen, which displays the log-
ical address 01 with DTC D0 ± FE.
Components:/*8
DisplayName
Rr±TVTelevision Display Assy
DVD±PDisc Player Controller
HINT:
Service Check displays the check results based on the informa-
tion obtained from each component's response to ºSystem
Check Executionº and ºDiagnosis Memory Requestº, and the
information of ºCurrent DTC Notificationº (the Unit Check that
will be displayed on the next screens.).

I28278
*1
*4*3
*2
*5*6
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2101
2295 Author: Date:
2005 SEQUOIA (RM1146U)
(2) Read Check Result
Check ResultMeaning
OKNo DTC is identified.
EXCHOne or more DTC requesting for exchange are detected.
CHEKOne or more DTC requesting for check are detected.
NCON
No connection response to Diagnosis System start±up,
whereas it has the connection response to the AVC±LAN
system when the power switch is turned on (when IG is
turned to ACC).
OldOne or more DTC are detected because of old version.
NRESNo response to the information about the Diagnosis System,
whereas it responds to the Diagnosis System start±up.
HINT:

After repair and check, press ºCode CLRº for more than
3 sec. to delete diagnosis memory.

After deleting diagnosis memory, press ºRecheckº and
make sure ºOKº is displayed on the screen.
(3) ºEXCHº, ºCHEKº and ºOldº can be used as switches
to activate Unit Check Modeº for detail information.
Check troubled parts of the components in these
modes by referring to the DTC code list.
Display ItemDescription
Components name/*1Names of components to be checked
are displayed.
DTC clear switch/*2
Pressing this switch for 3 sec. deletes
DTC memory of the selected diagnosis
component.
Service check mode screen switch/*3Pressing this returns to the Service
Check Mode screen.
Date/Time/*4
The date and time stamped at the time of
DTC occurrence are displayed in the or-
der of year±month±day±hour±minute±
second. (If the date and time data is in-
valid, it is displayed as a blank.)
Current/*5Up to 6 DTC codes detected during the
System Check are displayed.
Memory/*6DTC memories stored and current DTC
Notification are displayed.
HINT:

Detecting Unit DTC activates the Unit Check Mode on the
screen.

In the Unit Check Mode, DTC which is identified as
ºEHCKº in the Service Check is displayed as classified
into Current DTC and Past DTC.

I28279
I28280
*1
*4
*3
*2
*5*6
DI±2102
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2296 Author: Date:
2005 SEQUOIA (RM1146U)
(4) ºLAN Monitorº can be used as a switch to activate
ºLAN Monitorº for detail information. Check faulty
parts of the components in these modes by refer-
ring to the DTC code list.
Display ItemDescription
Components name/*1Names of components to be checked
are displayed.
Segment/*2Logical address codes corresponding to
DTC are displayed.
DTC/*3DTC is displayed.
Sub±Code (address numbers of related
components)/*4Physical address codes memorized to-
gether with DTC are displayed.
Sub±code (Connection confirmation
number) /*5Connection confirmation numbers mem-
orized together with DTC are displayed.
Sub±code (Number of occurrence) /*6The number of occurrence of the same
DTC is displayed.
HINT:

Detecting no LAN DTC activates the LAN Monitor on the
screen.

The LAN Monitor chooses and displays the LAN DTC out
of DTC of components identified as ºCHEKº in the LAN
Monitor.
(5) Read Check Result
Check ResultMeaning
OKNo DTC is identified.
CHEKOne or more DTC requesting for check are detected.
NCON
No connection response to Diagnosis System start±up,
whereas it has the connection response to the AVC±LAN
system when the power switch is turned on (when IG is
turned to ACC).
NRESNo response to the information about the Diagnosis System,
whereas it responds to the Diagnosis System start±up.
OldOne or more DTC are detected because of old version.
HINT:

After repairing and checking, press ºCode CLRº for more
than 3 sec. to delete diagnosis memory.

After deleting diagnosis memory, press ºRecheckº and
make sure ºOKº is displayed on the screen.

DIDB3±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2103
2297 Author: Date:
2005 SEQUOIA (RM1146U)
DIAGNOSTIC TROUBLE CODE CHART
TermsMeaning
Physical addressThree±digit code (shown in hexadecimal) which is given to each component com-
prising the AVC±LAN.
Corresponding to the function, individual symbols are specified.
Logical addressTwo±digit code (shown in hexadecimal) which is given to each function comprising
the inner system of the AVC±LAN.
HINT:
DTC of the device which is directly connected via AVC±LAN, is displayed on the ºaudio system or navigation
systemº and the ºtelevision display assyº respectively.
Titles for each unit are stated in the following order: parts name (physical address) [Name indicated by DTC]
1. MULTI±DISPLAY CONTROLLER SUB±ASSY (Physical address: 16C, 16D) [RSE±ECU]
HINT:

*1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.

*2: This code is stored 180 seconds after the power supply connector is disconnected after engine
start.

*3: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position after engine start.

*4: This code may be stored when the engine key is turned back to the ON position and then turned
again to the START position in 1 minute after engine start.
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
D8
*2No Response To Connection
CheckComponent shown by sub±code is or had been
disconnected from system after engine start.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
D9
*1Last Mode Error
Component operated (sound and/or image was
provided) before engine stop is or was discon-
nected with ignition switch in the ACC or ON posi-
tion.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
DANo Response to ON/OFF
Instruction
No response is identified when changing mode
(audio and visual mode change).
Detected when sound and picture do not change
by button operation.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
DB
*1Mode Status ErrorDual alarm is detected.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±

DI±2104
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2298 Author: Date:
2005 SEQUOIA (RM1146U)DC
*4
Transmission Error
Transmission to component shown by sub±code
failed.
(This code does not necessarily mean actual fail-
ure.)If same sub±code is recorded in
other component(s), check harness
for power supply and communica-
tion system of all components
shown by code.
±
DE
*3Slave Reset (Momentary Inter-
ruption)After engine start, slave component has been dis-
connected.
1. Power source circuit (Television
display assy).
2. Power source circuit (Disc play-
er controller).
3. AVC±LAN circuit
4. Replace television display assy.
5. Replace disc player controller.DI±2107
DI±2112
DI±2139
±
±
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.
Since this DTC is provided for engi-
neering purpose, it may be detected
when no actual failure exists.
±
2. Television display assy (Physical address: 1B0) [Rr±TV]
HINT:

*1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting the engine.

*2: This code may be stored when the engine key is turned again in 1 minute after the engine start.

*3: This code may be stored when the engine key is turned again after the engine start.

*4: The code is stored 210 seconds after the power supply connector of the master component is dis-
connected with the ignition switch in the ACC or ON position.
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
22RAM ErrorAbnormal condition of RAM is detected.Replace television display assy±
D6
*1Absence of Master
Component in which this code is recorded was
disconnected from system with the ignition switch
in the ACC or ON position. Or, when this code
was recorded, multi±display controller sub±assy
was disconnected.
1. Power source circuit (Television
display assy).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace Multi±display controller
sub±assy.DI±2107
DI±2110
DI±2139
±
±
D7
*4Communication Check Error
Component in which this code is recorded is or
was disconnected from system after engine start.
Or, when recording this code, multi±display con-
troller sub±assy was disconnected.
1. Power source circuit (Television
display assy).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace Multi±display controller
sub±assy.DI±2107
DI±2110
DI±2139
±
±
DC
*2Transmission Error
Transmission to component shown by sub±code
failed.
(Detecting this DTC does not necessarily mean
actual failure.)If the same sub±code is recorded in
other components, check harness
for power supply and communica-
tion system of all components
shown by code.
±

± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2105
2299 Author: Date:
2005 SEQUOIA (RM1146U)DD
*3
Master Reset (Momentary Inter-
ruption)After engine start, multi±display controller sub±
assy was disconnected from system.
1. Power source circuit (Television
display assy).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace Multi±display controller
sub±assy.DI±2107
DI±2110
DI±2139
±
±
DF
*4Master Error
Due to defective condition of component with a
display, master function is switched to audio
equipment.
Error occurs in communication between sub±
master (audio) and master component.
1. Power source circuit (Television
display assy).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace television display assy.
5. Replace Multi±display controller
sub±assy.DI±2107
DI±2110
DI±2139
±
±
E0
*1Registration Completion
Instruction ErrorºRegistration Completion Instructionº command
from master cannot be received.Since this DTC is provided for engi-
neering purposes, it may be de-
tected when no actual failure exists.
±
E2ON/OFF Instruction Parameter
ErrorError occurs in ON/OFF controlling command
from multi±display controller sub±assy.Replace multi±display controller
sub±assy.±
E3
*1Registration Request Transmis-
sion

Registration Request command is output from
slave component.

Registration Connection Check Instruction, Reg-
istration Request command is output from sub±
master component.
Since this DTC is provided for engi-
neering purposes, it may be de-
tected when no actual failure exists.
±
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.
Since this DTC is provided for engi-
neering purposes, it may be de-
tected when no actual failure exists.
±
3. Disc player controller (Physical address: 1A0) [DVD±P]
HINT:

*1: Even if no failure is detected, this code may be stored depending on the battery condition or voltage
for starting an engine.

*2: This code may be stored when the engine key is turned again 1 min. after the engine starts.

*3: This code may be stored when the engine key is turned again after the engine starts.

*4: When 210 sec. have passed after pulling out the power supply connector of the master component
with the ignition switch in ACC or ON, this code is stored.
(a) Logical address: 01 (Communication control)
DTCNameDiagnosisVerificationSee page
22RAM ErrorAbnormal condition of RAM is detected.Replace disc player controller±
D6
*1Absence of Master
Component in which this code is recorded was
disconnected from system with the ignition switch
in the ACC or ON position. Or, when this code
was recorded, multi±display controller sub±assy
was disconnected.
1. Power source circuit (Disc play-
er controller).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace disc player controller.
5. Replace Multi±display controller
sub±assy.DI±2112
DI±2110
DI±2139
±
±

DI±2106
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2300 Author: Date:
2005 SEQUOIA (RM1146U)D7
Communication Check Error
Component in which this code is recorded is or
was disconnected from system after engine start.
Or, when recording this code, multi±display con-
troller sub±assy was disconnected.
1. Power source circuit (Disc play-
er controller).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace disc player controller.
5. Replace Multi±display controller
sub±assy.DI±2112
DI±2110
DI±2139
±
±
DC
*2Transmission Error
Transmission to component shown by sub±code
has been failed.
(Detecting this DTC does not necessarily mean
actual failure.)If same sub±code is recorded in
other components, check harness
for power supply and communica-
tion system of all components
shown by code
±
DD
*3Master Reset (Momentary Inter-
ruption)After engine start, radio and player assembly was
disconnected from system.
1. Power source circuit (Disc play-
er controller).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace disc player controller.
5. Replace Multi±display controller
sub±assy.DI±2112
DI±2110
DI±2139
±
±
DF
*4Master Error
Due to defective condition of component with a
display, master function is switched to audio
equipment.
Error occurs in communication between sub±
master (audio) and master component.
1. Power source circuit (Disc play-
er controller).
2. Power source circuit (Multi±dis-
play controller sub±assy).
3. AVC±LAN circuit.
4. Replace disc player controller.
5. Replace Multi±display controller
sub±assy.DI±2112
DI±2110
DI±2139
±
±
E0
*1Registration Completion
Instruction ErrorºRegistration Completion Instructionº command
from master cannot be received.Since this DTC is provided for engi-
neering purpose, it may be detected
when no actual failure exists
±
E2ON/OFF Instruction Parameter
ErrorError occurs in ON/OFF controlling command
from disc player controller.Replace disc player controller±
E3
*1Registration Request Transmis-
sion

Registration Request command is output from
slave component.

Registration Connection Check Instruction, Reg-
istration Request command is output from sub±
master component.
Since this DTC is provided for engi-
neering purpose, it may be detected
when no actual failure exists
±
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.
Since this DTC is provided for engi-
neering purpose, it may be detected
when no actual failure exists
±
(b) Logical address: 44 (DVD)
DTCNameDiagnosisVerificationSee page
42No Disc ReadoutDisc cannot be read.Inspect disc±
44DVD ErrorError is detected in disc player controller.Replace disc player controller±
45EJECT ErrorDisc cannot be ejected.Replace disc player controller±
46Disc CrackA crack and dirt are in a disc.Replace disc player controller±
52Player ErrorClamp unusually generating.Replace disc player controller±

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

I28613
ACC
BU+BGND
R25
Television Display Assy:
DI±2108
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
2302 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Inspect television display assy (BU+B, ACC, GND).
PREPARATION:
Disconnect the R25 connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Symbol (Tester connection)ConditionSpecified condition
GND (R25±1) ±
Body groundAlwaysBelow 1 W
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Symbol (Tester connection)ConditionSpecified condition
BU+B (R25±8) ±
GND (R25±1)Always10 to 14 V
ACC (R25±7) ±
GND (R25±1)Ignition SW ACC10 to 14 V
OK Go to step 3.
NG