2001 TOYOTA AVALON reset

I19691
ºTUNE DOWNº Switch
º1chº Switch º2chº Switch º3chº Switchº4chº Switch º5chº Switchº6chº Switch
ºDISCº Switch
ºTUNE UPº Switch
- BODY ELECTRICALAUDIO SYSTEM
BE-133
1737 Author
: Date
:
2001 AVALON (RM808U)
2. Except Europe models:
DIAGNOSIS FUNCTION
Error codes over tuner and connected equipment are displayed on the screen of tuner.
(a) Diagnosis start-up
For shifting to diagnosis mode, push ºDISCº switch 3 times with pressing º1º and º6º of PRESET switch
at the same time while the audio power is OFF and ACC is ON.
To exit from diagnosis mode, press ºDISCº switch for 2 seconds or turn the ignition key OFF.
(When º1-190º is displayed, the mode is transferred to LAN check mode.)
(b) LAN check
When starting up the diagnosis mode, the mode turns to LAN check mode, the screen displays the
code numbers (physical address) of tuner and connected equipment. Smaller codes are displayed in
order, displayed code numbers are switched by operating TUNE ºUPº or ºDOWNº switch. In LAN check
mode, by pressing º5º of PRESET switch for more than 2 secs., diagnosis memory of each equipment
can be deleted, when deletion is completed, the mode returns to LAN check mode.
Code No. (physical address) List
Code No. (physical address)Equipment name
190Radio receiver assembly (Audio head unit)
240CD changer (in Luggage room)
360CD changer (in center console and glove compartment box)
440Power amplifier
(c) System check
When pressing º1º of PRESET switch in LAN check mode, the mode turns to the system check
mode, the system performs self diagnosis of connected equipment and displays the re-
sults.(ºSYSº (showing the system is under detection) is displayed.)
Perform the operation shown in the following illustration, then read the result of the inspection.

H: This shows the equipment has a diagnosis code.
190: Physical address
1: This is the number allotted to the diagnosis code
that occurred.
21: DTC No.
Last Code No.: NO DTC No.
Pressing TURN ºDOWNº
Pressing TURN ºUPº
.
.
..
.
.1: This is the number allotted to the diagnosis code
that occurred. BE-134
- BODY ELECTRICALAUDIO SYSTEM
1738 Author
: Date
:
2001 AVALON (RM808U)
HINT:
It sometimes takes approx. 40 secs. till the system inspection is completed.
The chart below is an example of when diagnosis code º21º appears on the physical address (190)
equipment. (ROM error occurs on the radio receiver.)
The smaller code numbers (physical address) are displayed in order (code No., diagnosis code, sup-
port code of diagnosis code (object equipment)).
When no error is detected in the system, º00º is displayed.
When an error code is detected, up to 6 codes per one system are displayed. Pressing TUNE ºUPº
or ºDOWNº switches the display.
In the system check mode, when pressing º6º of PRESET switch the mode returns to LAN check mode.
(d) Diagnosis memory
(1) In LAN check mode, when pressing º2º of PRESET switch the mode turns to the diagnosis
memory mode. (ºCODEº is displayed.)
The results of self diagnosis performed over tuner and connected equipment are memorized and
displayed.
(2) Perform the operation shown in the following illustration, then read the result of the inspection.
HINT:
The smaller code numbers (physical address) are displayed in order (code No. , periodic communica-
tion number when error occurs, diagnosis code, and support code of diagnosis code (object equip-
ment)).
When no error is detected in the system, º00º is displayed. When an error code is detected, up to 6
codes per one system are displayed. Pressing TUNE ºUPº or ºDOWNº switches the display. Each diag-
nosis code is same as code in the system check mode.
When pressing º6º of PRESET switch, the mode returns to LAN check mode.
The following illustration below is an example of when diagnosis code ºD1º appears on the code (190)
and (240 or 360) equipment. (Communication error occurs between the radio receiver and CD chang-
er.)

H: This shows the equipment has a diagnosis code.
190: Physical address
1: This is the number allotted to the diagnosis code
that occurred.
Last Code No.
.
.
..
.
.
06: Periodic communication number of when
occurring in the diagnosis memory code.
Pressing TURN ºDOWNºPressing TURN ºUPº
21: Periodic communication number of when
occurring in the diagnosis memory code.
1: This is the number allotted to the diagnosis code
that occurred.
d1: DTC No.
1: This is the number allotted to the diagnosis code
that occurred.
360: Physical address
(Equipment that is communicating code)
- BODY ELECTRICALAUDIO SYSTEM
BE-135
1739 Author
: Date
:
2001 AVALON (RM808U)
(e) Diagnosis memory clear
(1) After error is fixed, start up the diagnosis mode.
(2) Continue pressing preset switch º5º for 2 secs. (CLr is displayed.)
(3) Press the preset switch º2º and transfer to the diagnosis memory mode and check that the normal
code (00) is output.

- BODY ELECTRICALAUDIO SYSTEM
BE-137
1741 Author
: Date
:
2001 AVALON (RM808U) DD
*4
Master Reset (Momentary Interruption)After engine is started, multi-display assem-
bly was disconnected from system.Check harness for power supply system of
multi-display.
Check harness for communication system
of multi-display.
Check harness for power supply system of
radio and player.
Check harness for communication system
of radio and player.
If this error occurs frequently, replace mul-
ti-display assembly.
DE
*4Slave Reset (Momentary Interruption)After engine is started, slave component
was disconnected from system.Check harness for power supply of compo-
nent shown by auxiliary code.
Check harness for communication system
of component shown by auxiliary code.
DF
*5Master ErrorDue 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.Check harness for power supply of multi-
display assembly.
Check harness for communication system
of multi-display assembly.
Check harness for communication system
between multi-display assembly and sub-
master component.
E0
*1Registration Completion Instruction ErrorºRegistration Completion Instructionº com-
mand from master cannot be received.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
E1
*1Audio processor ON errorWhile source equipment is operating, AMP
output is stopped.Check harness for power supply of multi-
display assembly.
Check harness for communication system
of multi-display assembly.
E2ON/OFF Instruction Parameter ErrorError occurs in ON/OFF controlling com-
mand from multi-display assembly.Replace multi-display assembly.
E3
*1Registration Request TransmissionRegistration Request command is output
from slave component.
Receiving Connection Check Instruction,
Registration Request command is output
from sub-master component.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
(2) Logical address: 61 (Cassette switch)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
40Mechanical of Media ErrorMalfunction due to mechanical failure is
identified.
Or cassette tape is cut or entangled.Inspect cassette tape.
Replace radio and player.
(b) Physical address: 440 Stereo component amplifier
HINT:
*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for
starting an engine.
*2: It may be stored when the engine key is turned 1 min. again after engine start.
*3: It may be stored when the engine key is turned again after engine start.
*4: When 210 sec. has passed after pulling out the power supply connector of the master component
with the ignition switch in ACC or ON, this code is stored.

- BODY ELECTRICALAUDIO SYSTEM
BE-141
1745 Author
: Date
:
2001 AVALON (RM808U)
5. PROBLEM SYSMPTOMS TABLE
NOTICE:
When replacing the internal mechanism (computer part) of the audio system, be careful that no part
of your body or clothing comes in contact with the terminals of the leads from the IC, etc. of the re-
placement part (spare part).
HINT:
This inspection procedure is a simple troubleshooting which should be carried out on the vehicle during sys-
tem operation and was prepared on the assumption of system component troubles (except for the wires and
connectors, etc.).
Always inspect the trouble taking the following items into consideration.
Open or short circuit of the wire harness
Connector or terminal connection fault
ProblemFlow chart No.
RadioRadio not operating when power switch turned to 'ON'.1
Display indicates when power switch turned to 'ON', but no sound (including
'noise') is produced.2
Noise present, but AM - FM not operating.3
Any speaker does not work.4
Any AM or FM does not work.5
Few preset turning bands.5
Reception poor.6
Sound quality poor.7
Preset memory disappears.8
Tape PlayerCassette tape cannot be inserted.9
Cassette tape inserted, but no power.10
Power coming in, but tape player not operating.11
Any speaker does not work.12
Sound quality poor.13
Tape jammed, malfunction with tape speed or auto-reverse.14
Cassette tape will not eject.15
CD Auto ChengerCD magazine cannot be inserted.16
CD magazine inserted, but no power.17
Power coming in, but CD player not operating.18
Sound jumps.19
Sound quality poor (Volume faint).20
Any speaker does not work.21
CD magazine will not be ejected.22
Power AmplifierNo power coming in.23
Power coming in, but power amplifier not operating.24
Any speaker does not work.25
NoiseNoise occurs26
Noise produced by vibration or shock while driving.27
Noise produced when engine starts.28
The term ºAMº includes LW,MW and SW, and the term ºFWº includes UKW.

5 RadioANY AM OR FM DOES NOR WORK
FEW PRESET TUNING BANDS
Problem with radio wave signals or location?
Are both AM and FM defective?Radio assembly faulty.
Go to No.16
Is tape player operating normally? Radio assembly faulty.
Is power for the antenna being output from the radio assembly?
Hiss noise from speaker? Temporarily install another speaker. Functions OK?
Radio assembly faulty. Recheck system after repair.Speaker faulty.
Power amplifier faulty.
Recheck system after repair. Poor signals, poor location.
No
Ye s
Ye s No
No
NoYe s
Ye s
Ye s
Ye s
No
No
- BODY ELECTRICALAUDIO SYSTEM
BE-145
1749 Author
: Date
:
2001 AVALON (RM808U)

7 Radio SOUND QUALITY POOR
Ye sNo
Ye s
NG
OK Is sound quality always bad?
Is tape player operating normally?Poor signals, poor location.
Radio assembly faulty.
Install properly.
Speaker faulty. Is tape player operating normally?
Is speaker properly installed?
Radio assembly or power amplifier faulty.
Recheck system after repair. Temporarily install another speaker. Functions OK?Is sound quality bad in certain
areas only?
Radio assembly or power
amplifier faulty.
Can cassette tape be inserted in tape player?
Check if RADIO No.1 fuse is OK?Radio assembly faulty.
Replace fuse.
+B wire harness faulty.
GND faulty.
Power amplifier faulty. 8 Radio PRESET MEMORY DISAPPEARSNo
Radio assembly faulty.
No
NoNo NoYe s
Ye s
Ye s
Power amplifier faulty.
Radio assembly faulty.Ye s
Ye sYe s
No
No
No NG
NG
OKOKYe s
Check if GND (wire harness side) of power amplifier
grounded normally? Is power supplied to +B terminal of power amplifier?
Check if GND (wire harness side) of radio assembly
grounded normally? Is power supplied to +B terminal of radio assembly?
- BODY ELECTRICALAUDIO SYSTEM
BE-147
1751 Author
: Date
:
2001 AVALON (RM808U)

BE04P-05
- BODY ELECTRICALBODY ELECTRICAL SYSTEM
BE-1
1605 Author
: Date
:
2001 AVALON (RM808U)
BODY ELECTRICAL SYSTEM
PRECAUTION
HINT:
Take care to observe the following precautions when performing inspections or removal and replacement
of body electrical related parts.
1. HEADLIGHT SYSTEM
Halogen bulbs have pressurized gas inside and require special handling. They can burst if scratched or
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 AVALON is equipped with an SRS (Supplemental Restraint System) such as the driver airbag and front
passenger airbag. Failure to carry out service operation in the correct sequence could cause the SRS to
unexpectedly deploy during servicing, possibly leading to a serious accident. Before servicing (including re-
moval or installation of parts, inspection or replacement), be sure to read the precautionary notices in the
RS section.
3. AUDIO SYSTEM

If the negative (-) terminal cable is disconnected from the battery, the preset AM, FM 1 and FM 2 sta-
tions stored in memory are erased, so make sure to note the stations and reset them after the negative
(-) terminal cable is reconnected to the battery.

If the negative (-) terminal cable is disconnected from the battery, the radio, tape player and CD player
will not operate as well as audio anti - theft system. Be sure to input the correct ID number so that the
radio, tape player and CD player can be operated again.
4. MOBILE COMMUNICATION SYSTEM
If the vehicle is equipped with a mobile communication system, refer to precautions in the IN section.