2001 TOYOTA SEQUOIA service reset

IN0IG±04
BO4111
Negative Cable
± INTRODUCTIONFOR ALL OF VEHICLES
IN±9
9 Author: Date:
2005 SEQUOIA (RM1146U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The SEQUOIA is equipped with an SRS (Supplemental
Restraint System), such as the driver airbag, front pas-
senger airbag, side airbag assembly, curtain shield airbag
assembly and seat belt pretensioner.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE
(1) Malfunction symptoms of the supplemental re-
straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI±1118).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ºLOCKº posi-
tion and the negative (±) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back±up power source because if work is
started within 90 seconds of disconnecting the neg-
ative (±) terminal cable from the battery, the SRS
may deploy.)
When the negative (±) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized in
each memory system. When work is finished, reset
the clock and audio systems as before. To avoid
erasing the memory of each memory system, never
use a back±up power supply from another battery.

DID9S±01
I24383
º1chº Switch
ºSEEK TRACKº
DOWN SwitchºSEEK TRACKº
UP SwitchºDISCº Switch º2chº Switchº3chº Switch
º4chº Switchº5chº Switch
º6chº Switch
DI±1974
± DIAGNOSTICSAUDIO SYSTEM
2168 Author: Date:
2005 SEQUOIA (RM1146U)
DTC CHECK / CLEAR
1. DIAGNOSTIC CHECK
(a) Starting Diagnostic Mode (All elements come on during the SW check mode).
(1) Turn off the audio system and turn the ignition switch to the ACC position. While pressing the
preset switches º1º and º6º at the same time, press the ºDISCº 3 times.
(2) Reference:
When the system enters the Diagnosis Mode, a beep sound is emitted 3 times and all the
elements come on during the SW check mode.
It takes about 40 seconds to complete the check.
Turn all the elements in the LCD on.
When pressing the switch, confirm beep sound is emitted.
(b) Service Check Screen.
(1) Press the ºSEEK TRACKº switch to enter the ºService Check Screenº.
(2) In the service check mode, the system check and the diagnostic memory check are performed,
and the check results are displayed in ascending order of the component codes (physical ad-
dress.)
TermsMeaning
Component code
(Physical address)Three±digit code (In hexadecimal) given to each device comprising AVC±LAN.
Corresponding to its function, individual symbol is provided.
Logical addressTwo±digit code (In hexadecimal) given to each function and device unit in each
device comprising AVC±LAN.
Code No. (physical address) List
Code No.
(physical address)Equipment name
190Radio receiver assy (Audio head unit)
440Stereo component amplifier assy
1F6Multi±display controller (RSE ECU)
1F4Rear seat audio controller
(c) Finishing Diagnostic Mode.
Press the ºDISCº for 2 seconds or more, or turn the ignition switch off.

DI±1976
± DIAGNOSTICSAUDIO SYSTEM
2170 Author: Date:
2005 SEQUOIA (RM1146U)
(2) Check Result Display.
DisplayOriginal LanguageMeaningAction to be taken
goodGood (normal)No DTCs are detected in both ºSystem Check Modeº and
ºDiagnostic Memory Modeº.±
NCONNo connection
The system recognized the component when it was regis-
tered, but the component gives no response to the ºDiagnos-
tic Mode ON Requestº.
Check the power source cir-
cuit and the communication
circuit of the component indi-
cated by the component
code (physical address).
ECHNExchangeOne or more DTCs for ºExchangeº are detected in either
ºSystem Check Modeº or ºDiagnostic Memory Modeº.
Go to the detailed informa-
tion mode to check the
trouble area referring to the
DTC list.
CHECCheck
When no DTCs are detected for ºExchangeº, one or more
DTCs for ºCheckº are detected in either ºSystem Check
Modeº or ºDiagnostic Memory Modeº.Go to the detailed informa-
tion mode to check the
trouble area referring to the
DTC list.
OLDOld versionOld DTC application is identified and DTC is detected in ei-
ther ºSystem Check Modeº or ºDiagnostic Memory Modeº.±
NRESNo response
The device gives no response to any one of ºSystem Check
Mode ON Requestº, ºSystem Check Result Requestº and
ºDiagnostic Memory Requestº.
Check the power source cir-
cuit and the communication
circuit of the component indi-
cated by the component
code (physical address).
(3) To perform the Service Check again, press the preset switch º1º.
(e) Detailed Information Mode (when displaying the DTC for a trouble component)
(1) With ºCHECº or ºECHNº being displayed, press the preset switch º2º to go to the detailed informa-
tion mode.
(2) Press the ºSEEK TRACKº switch to display the ºSystem Check Result (SYS)º and ºDiagnostic
Memory Response (CODE)º.

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.

± DIAGNOSTICSREAR SEAT AUDIO SYSTEM
DI±2055
2249 Author: Date:
2005 SEQUOIA (RM1146U) OLD
Old versionOld DTC application is identified and DTC is detected in ei-
ther ºSystem Check Modeº or ºDiagnosis Memory Modeº.±
NRESNo response
The device gives no response to any one of ºSystem Check
Mode ON Requestº, ºSystem Check Result Requestº and
ºDiagnosis Memory Requestº.
Check the power source cir-
cuit and the communication
circuit of the device indi-
cated by the device code
(physical code).
(3) To perform the Service Check again, press the pre-
set switch º1º.
(f) detailed information Mode (when displaying the troubled
device's DTC)
(1) With ºCHECº or ºECHNº displayed, press the preset
switch º2º to go to the detailed information mode.
(2) Press the ºTUNE/TRACKº switch to display ºSys-
tem Check Result (SYS)º and ºDiagnosis Memory
Response (CODE)º.

BE01E±12
± BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE±1
3405 Author: Date:
2005 SEQUOIA (RM1146U)
BODY ELECTRICAL SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77
Take care to observe the following precautions when performing inspections or removal and replacement
of body electrical related parts.
1. LIGHTING SYSTEM
Halogen bulbs have pressurized gas inside and require special handling.
They may burst or shatter if scratched or the bulb is dropped. Hold a bulb only by its plastic or metal case.
Don't touch the glass part of a bulb with bare hands.
2. SRS (SUPPLEMENTAL RESTRAINT SYSTEM)
The SEQUOIA is equipped with an SRS (Supplemental Restraint System) such as the driver airbag. Failure
to carry out service operations in the correct sequence could cause the SRS to unexpectedly deploy during
servicing, possibly leading to a serious accident. Before servicing (including removal and installation of parts,
inspection or replacement), be sure to read the precautions in the RS section (See page xx±xxx).
3. AUDIO SYSTEM
If the battery negative (±) terminal is disconnected, the preset AM, FM 1 and FM 2 stations stored in the
memory are erased, so be sure to make a memo of the stations and reset them after the battery terminal
is reconnected.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.

05_SEQUOIA_U (L/O 0408)
8
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
1. Service reminder indicators and
indicator lights
2. Oil pressure gauge
3. Tachometer4. Speedometer
5. Fuel gauge
6. Engine coolant temperature gauge7. Trip meter reset knob
8. Odometer and two trip meters
9. Height control indicator lights
10. Volt meter
Instrument cluster overview

Ty p e A

05_SEQUOIA_U (L/O 0408)
9
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
1. Service reminder indicators and
indicator lights
2. Oil pressure gauge
3. Tachometer4. Speedometer
5. Fuel gauge
6. Engine coolant temperature gauge7. Trip meter reset knob
8. Odometer and two trip meters
9. Height control indicator lights
10. Volt meter
Ty p e B