2001 TOYOTA SEQUOIA ECO mode

DI±1978
± DIAGNOSTICSAUDIO SYSTEM
2172 Author: Date:
2005 SEQUOIA (RM1146U)
(3) Displayed Items in Detailed Information Mode
Division Code for
DTC displayMeaning
The order of detailed information displayed when the ºTUNE
UPº switch is pressed. (The order is reversed when the
ºTUNE DOWNº switch is pressed.)
SYSSystem check result is displayed.Logical address "
DTC
CODEDiagnostic memory check result is displayed.
Logical address"
DTC"
Sub code"
Connection confirmation number"
The number of times of occurrence
(4) Check the trouble area referring to the DTC list.
(5) To return to the service check mode, press the preset switch º3º.
2. DTC CLEAR
(a) Clearing Individual DTC Memory (when clearing the memory of the DTC detected in the past individual-
ly)
Press the preset switch º5º for 2 seconds or more while the ºECHNº is displayed in the service check
mode or during the detailed information mode.
HINT:
Beep sound is emitted once when the DTC memory is completely cleared.
When the DTC memory is cleared, only the component code (physical address) is displayed for the
target component.
To check DTCs, press the preset switch º1º and perform the service check again.
(b) Clearance of all the DTC memory (when clearing all the memory of the DTCs detected in the past)
(1) Start the diagnostic mode after repairing the trouble area.
(2) Press the preset switch º5º for 2 seconds or more (ºCLRº is displayed at this time).
HINT:
Beep sound is emitted once when the DTC memory is completely cleared.
When the DTC memory for all the component is cleared, only the component codes (physical address)
are displayed.
(3) Press the preset switch º1º to perform the service check again, and check that no DTCs are dis-
played for all the component codes (physical address).
(c) Finishing Diagnostic Mode.
Press the ºDISCº for 2 seconds or more, or turn the ignition switch off.

DI±1988
± DIAGNOSTICSAUDIO SYSTEM
2182 Author: Date:
2005 SEQUOIA (RM1146U)E0
*1
Registration Completion
Instruction ErrorºRegistration Completion Instructionº command
from master cannot be received.Since this DTC is provided for engi-
neering, it may be detected when no
actual failure exists.
±
E3
*1Registration Request Transmis-
sion

Registration Request command is output from
slave component.

Registration Request command is output from
sub±master component.Since this DTC is provided for engi-
neering, it may be detected when no
actual failure exists.
±
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 (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
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.
±
D8
*2No Response To Connection
CheckComponent shown by sub±code is or had been
disconnected from system after engine start.
1. Power source circuit (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
D9
*1Last Mode Error
Component operated (sound and/or image was
provided) before engine stop is or was discon-
nected with ignition switch in ACC or ON.
1. Power source circuit (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
DANo Response to ON/OFF
Instruction
No response is identified when changing mode
(audio and visual mode change).
Detected when sound and picture does not
change by button operation
1. Power source circuit (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
DB
*1Mode Status ErrorDual alarm is detected.
1. Power source circuit (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
DC
*4Transmission Error
Transmission to component shown by sub±code
has been 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 (Radio re-
ceiver assy).
2. AVC±LAN (Radio receiver assy
± Rear seat audio controller).
3. Replace Rear seat audio control-
ler.DI±1990
DI±2061
±
HINT:

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

DI±2054
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
2248 Author: Date:
2005 SEQUOIA (RM1146U)
(e) Service Check Mode Result Display (for checking the cur-
rent and the past system conditions)
(1) Press the ºTUNE/TRACK UPº switch to see the
check result of each device.
(2) Check result display.
DisplayOriginal LanguageMeaningAction to be taken
goodGood (normal)No DTC is detected in both ºSystem Check Modeº and
ºDiagnosis Memory Modeº.±
NCONNo connection
The system recognized the component when it was regis-
tered, but the component gives no response to the ºDiagno-
sis Mode ON Requestº.
Check the power source cir-
cuit and the communication
circuit of the device indi-
cated by the device code
(physical address).
ECHNExchangeOne or more DTC for ºExchangeº is detected in either ºSys-
tem Check Modeº or ºDiagnosis Memory Modeº.
Go to the detailed informa-
tion mode to check the
trouble area by referring to
the DTC list.
CHECCheck
When no DTC is detected for ºExchangeº, one or more DTC
for ºCheckº is detected in either ºSystem Check Modeº or
ºDiagnosis Memory Modeº.Go to the detailed informa-
tion mode to check the
trouble area referring to the
DTC list.
I28309
The illustration shows the case that the system has 2 devices with codes 190 and 360, and the device (code
360) has a trouble.
The check result is displayed in ascending order of device code. The device code is displayed first, and then
the check result.P±±±indicates physical address
190±±±physical address
good±±±ºThe component is normalº.
P±±±indicates physical address
360±±±physical address
CHEC±±±ºCheck neededº.
: TUNE/TRACK UP
: TUNE/TRACK DOWN

I28310
Service Check Mode
Detailed Information ModeDISC/CH/PROG DOWN
Detailed information
of the first code
is displayed
Detailed information
of the second code
is displayed
Continue to display detailed information
when more than one DTC is detected.
The illustration shows the case that the component with code 190 has DTC º47º and ºdCº as a result of the
system check and the diagnosis memory response.
The detailed information mode shows the system check result first, then the diagnosis memory response result.
(*1): As for DTC that does not have any sub code, sub code is not displayed.P±±±indicates physical address
190±±±physical address
SYS±±±system check result
P±±±indicates physical address
360±±±sub code
6F±±±connection
check number 1±±±the first code
62±±±logical address
DC±±±DTC CODE±±±diagnosis memory
response result
2±±±the second code
01±±±logical address
05±±±the number of times of
occurrence
(in decimal) 47±±±DTC
Continue to display detailed information
when more than one DTC is detected.
To(*1)
: TUNE/TRACK UP
: TUNE/TRACK DOWN
DISC/CH/PROG UP
 From DI±2056
± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
2250 Author: Date:
2005 SEQUOIA (RM1146U)

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.

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
±
±

DIDBX±01
I28218
I28223
*1
*2 *3
I28224
DI±2178
± DIAGNOSTICSNAVIGATION SYSTEM
2372 Author: Date:
2005 SEQUOIA (RM1146U)
DISPLAY CHECK MODE (Panel Switch Check)
HINT:

This mode checks the panel switch operation response on the radio and navigation assy.

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.
1. Enter diagnostic mode (See page DI±2191).
2. Select ºDisplay Checkº from the ºDiagnosis MENUº
screen.
3. Select ºPanel Switch Checkº from the ºDisplay
Checkº screen.
4. Operate each switch and check that the switch name
and condition are correctly displayed.
HINT:

Pressing the ºDISPLAYº switch for 3 seconds will exit the
diagnostic mode.

ºOPENº and ºTILTº switches are not displayed. To test
these switches, they must be operated.
DisplayContents
Push switch name/*1
Name of the pressed switch is displayed.

If more than one switch is pressed, ºMULTIPLEº is displayed.
Rotary switch name/*2Name of the rotary switch is displayed.
Rotary switch direction/*3Direction of the rotary switch is rotated.

DIDBY±01
I28218
I28225
I28226 PKB OFF
REV OFFSPEED 49km/h
TAIL OFF
± DIAGNOSTICSNAVIGATION SYSTEM
DI±2179
2373 Author: Date:
2005 SEQUOIA (RM1146U)
DISPLAY CHECK MODE (Vehicle Signal Check)
HINT:

This mode checks the vehicle signal status input to the radio and navigation assy.

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.
1. Enter diagnostic mode (See page DI±2191).
2. Select ºDisplay Checkº from the ºDiagnosis MENUº
screen.
3. Select ºVehicle Signal Checkº from the ºDisplay
Checkº screen.
4. When the ºVehicle Signal Check Modeº screen is dis-
played, check all the vehicle signal conditions.
HINT:

Only conditions having inputs are displayed.

This screen is updated once per second when input sig-
nals to the vehicle are changed.