±
DIAGNOSTICS AIR CONDITIONING SYSTEM
05±1101
AVENSIS REPAIR MANUAL (RM1018E)
Engine idle up does not occur, or is continuous
1. Air conditioner magnetic valve circut
2. A/C amplifier assy
3. Engine ECU 1AZ±FSE:
1AZ±FE:
1ZZ±FE/3ZZ±FE:
1CD±FTV:05±1151
05±1098 05±294
05±149 05±5
05±528
Set temperature value displayed does not much up with operation
of temperature control switch.1. Air conditioner magnetic valve circut
2. A/C amplifier assy05±1151
05±1098
Brightness does not change when light control switch it turned.1. Illumination light system
2. A/C amplifier assy±
05±1098
Unable to access the diagnosis mode.1. A/C amplifier assy05±1098
DTC is not recorded. Set mode is cleared when IG switch is
turned off.1. Back±up power source circuit
2. A/C amplifier assy05±1142
05±1098
Hot gas heater:
SymptomSuspect AreaSee page
Warm wind does not blow out even if the gas heater switch is
turned on before the water temperature rises under the condition
where the ordinal A/C correctly operates.1. Hot gas heater magnetic valve circuit
2. Hot gas heater switch circuit
3. A/C amplifier assy05±1157
05±1159
05±1098
0549J±12
± DIAGNOSTICSAUDIO SYSTEM
05±1405
AVENSIS REPAIR MANUAL (RM1018E)
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.
1. RADIO RECEIVER ASSY (Physical address: 190)
HINT:
*1: Even if no failure is detected, trouble code may be stored depending on the battery condition or
voltage for starting the engine.
*2: It is stored when 180 seconds have passed after the power supply connector is pulled out after the
engine starts.
*3: It may be stored when the engine key is turned 1 minuite after the engine starts.
*4: It may be stored when the engine key is turned again after the engine starts.
*5: When 210 seconds have passed after pulling out the power supply connector of the master compo-
nent with the ignition switch in ACC or ON, this code is stored.
(a) Logical address: 01 (Communication control)
DTCDiagnosis itemDescriptionAction to be taken
22RAM ErrorAbnormal condition of RAM is detected.Replace radio receiver assy.
D6
*1Absence of MasterComponent in which this code is recorded
was disconnected from system or master
component with ignition in ACC or ON.Check harness for power supply system of
radio receiver assy.
Check harness for communication system
of radio receiver assy.
D7
*5Connection check ErrorComponent in which this code is recorded
was disconnected from system or master
component ignition with in ACC or ON.Check harness for power supply of radio
receiver assy.
Check harness for communication system
of radio receiver assy.
D8
*2No Response to Connection CheckComponent shown by sub code is or was
disconnected from system after engine
start.Check harness for power supply system of
component shown by sub code.
Check harness for communication system
of component shown by sub code.
D9
*1Last Mode ErrorAudio or visual component operated before
engine stop is or was disconnected with
ignition switch in ACC or ON.Check harness for power supply system of
component shown by sub code.
Check harness for communication system
of component shown by sub code.
DANo Response to ON/OFF InstructionNo response is identified when changing
mode (audio and visual mode change).
Sound and picture does not change by but-
ton operation.Check harness for power supply system of
component shown by sub code.
Check harness for communication system
of component shown by sub code.
If error occurs again, replace component
shown by sub code.
DB
*1Mode Status ErrorDual alarm is detected.Check harness for power supply of compo-
nent shown by sub code.
Check harness for communication system
of component shown by sub code.
DC
*3Transmission ErrorTransmission to component shown by auxil-
iary code failed.
(Detecting this DTC does not necessarily
mean actual failure.)If same sub code is recorded in other com-
ponent, check harness for power supply and
communication system of all components
shown by code.
(If not, delete DTC and recheck.)
0549I±12
I35610
1
6
DISC
SEEK UPSEEK DOWN
± DIAGNOSTICSAUDIO SYSTEM
05±1399
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1. DIAGNOSIS CHECK
(a) Starting Diagnosis Mode (All elements are lighting in the
SW check mode).
(1) Turn off the audio system and turn the IG switch to
ACC. While pressing the preset switches º1º and º6º
at the same time, press ºDISCº 3 times.
(2) Reference:
When the system enters the Diagnosis Mode,
a ºbeepº tone is emitted 3 times and all the
elements are lighting in 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, comfirm a beep
tone is emitted.
Press ºSEEK TRACK UPº button switches to
enter the ºService Check Screenº.
(b) Service Check Screen.
(1) Reference
In the service check mode, the system check
and the diagnosis memory check are per-
formed, and the check results are displayed
in ascending order of the device codes
(physical address.)
TermsMeaning
Component code
(Physical address)Three±digit code (In hexadecimal) given to each device
comprising AVC±LAN. Corresponding to its function, individ-
ual 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)
(c) Finishing Diagnosis Mode.
(1) Press ºDISCº for 2 seconds or more, or turn the IG
switch OFF.
05±1400
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(d) Service Check Mode Result Display (for checking the cur-
rent and the past system conditions).
(1) Press the ºSEEK TRACKº switch to see the check
result of each device.
(2) Check Result Display.
DisplayOriginal LanguageMeaningAction to be taken
goodGood (normal)No DTCs are 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 detail information
mode to check the trouble
area referring to the DTC
list.
CHECCheck
When no DTCs are detected for ºExchangeº, one or more
DTC for ºCheck is detected in either ºSystem Check Modeº
or ºDiagnosis Memory Modeº.Go to the detail information
mode to check the trouble
area referring to the DTC
list.
I34696
The illustration shows the case that the system has 2 devices with codes 190 and 360, and the device (code
360) requires a check.
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.
: SEEK TRACK UP
: SEEK TRACK DOWN
I34695
Service Check Mode
Detail Information ModePRESET SWITCH º3º
PRESET SWITCH º2º
Detail information
of the first code
is displayed
Detail 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.
(*2): As for the DTCs that do 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.*1
From *1
To * 1(*2)
: SEEK TRACK UP
: SEEK TRACK DOWN
05±1402
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
± DIAGNOSTICSAUDIO SYSTEM
05±1403
AVENSIS REPAIR MANUAL (RM1018E)
(3) Displayed Items in Detailed Information Mode
Division Code for
DTC displayMeaning
The order of detailed information displayed when the ºSEEK
TRACK UPº switch is pressed. (The order is reversed when
the ºSEEK TRACK DOWNº switch is pressed.)
SYSSystem check result is displayed.Logical address
DTC
CODEDiagnosis 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 pre-
set switch º3º.
(f) Clearing Individual DTC Memory (when clearing the
memory of the DTC detected in the past individually)
(1) Press the preset switch º5º for 2 seconds or more
while the ºECHNº is displayed in the service check
mode or during the detail 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 compo-
nent.
To check the DTC, press the preset switch º1º and perform
the service check again.
(g) Clearance of all the DTC memory (when clearing all the
memory of the DTC detected in the past)
(1) Start the diagnosis 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 given once when the DTC memory is com-
pletely cleared.
When the DTCs memory for all the device 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 displayed
for all the component codes (physical address).
E50013
05±1426
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CD SOUND SKIPS
INSPECTION PROCEDURE
1 DISC CLEANING
(a) Disk cleaning
(1) If the disk gets dirty, clean the disk by wiping the sur-
face from the center to outside in the radial direc-
tions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti±static pre-
servative.
Standard: Malfunction disappears.
OK DISC DIRTY
NG
2 REPLACE CD WITH ANOTHER AND RECHECK
(a) Replace the CD with another and recheck.
(1) Replace the CD with onother normal one to see if the same trouble occurs again.
Standard: Malfunction disappears.
OK CD FAULTY
NG
3 CHECK WHEN THIS HAPPENS
(a) Check when this happens.
(1) Check that in what condition (place) noise occurs.
Standard: Driving on the bumpy road.
OK Go to step 5
NG
4 COMPARE IT WITH ANOTHER CAR OF SAME MODEL
(a) Compare it with another vehicle of the same model.
(1) Compare with the vehicle of the same type which does not have a trouble to see if there is any
difference in the condition of trouble occurrence.
Standard: No difference found.
OK SETTING
NG
054A0±09
05C3E±01
± DIAGNOSTICSNAVIGATION SYSTEM
05±1453
AVENSIS REPAIR MANUAL (RM1018E)
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.
1. RADIO RECEIVER ASSY (Physical address: 190)
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 is stored in 180 sec. after the power supply connector is pulled out after engine start.
*3: This code may be stored when the ignition switch is turned again after engine start.
*4: This code may be stored when the ignition switch is turned again in 1 min. after engine start.
(a) Logical address: 01 (Communication control)
DTCDiagnosis itemConditionCountermeasure and inspected parts
D5
*1Registered component disconnectedComponent shown by sub±code is or was
disconnected from system with ignition
switch ACC or ON.
Communication with component shown by
sub±code is not ensured when engine is
started.Check harness for power supply of compo-
nent shown by sub±code.
Check harness for communication system
of component shown by sub±code.
D6
*1Absence of MasterComponent in which this code is recorded
has been disconnected from system with
ignition switch ACC or ON. Or, when this
code was recorded, multi±display (CRT dis-
play) display was disconnected.Check harness for power supply system of
multi±display (CRT display) display.
Check harness for communication system
of multi±display (CRT display) display.
D8
*2No response to connection checkComponent shown by sub±code is or was
disconnected from system after engine is
started.Check harness for power supply of compo-
nent shown by sub±code.
Check harness for communication system
of component shown by sub±code.
D9
*1Last Mode ErrorComponent operated (sound and/or image
was provided) before engine stop is or was
disconnected with ignition switch ACC or
ON.Check harness for power supply of compo-
nent shown by sub±code.
Check harness for communication system
of component shown by sub±code.
DANo Response to ON/OFF InstructionNo response is identified when changing
mode (audio and visual mode change).
Detected when sound and picture does not
change by button operationCheck harness for power supply system of
component shown by sub±code.
Check harness for communication system
of component shown by sub±code.
If error occurs again, replace component
shown by auxiliary code
DB
*1Mode Status ErrorDual alarm is detected.Check harness for power supply system of
component shown by sub±code.
Check harness for communication system
of component shown by sub±code.
DC
*4Transmission ErrorTransmission to component shown by sub±
code has been failed.
(This code does not necessarily mean actu-
al failure.)If same sub±code is recorded in other com-
ponent(s), check harness for power supply
and communication system of all compo-
nents shown by code.
DD
*4Master Reset (Momentary Interruption)After engine is started, multi±display (CRT
display) display was disconnected from sys-
tem.Check harness for power supply system of
multi±display (CRT display) display.
Check harness for communication system
of multi±display (CRT display) display.
If this error occurs frequently, replace mul-
ti±display (CRT display) display.