code TOYOTA AVENSIS 2005 Service Repair Manual

I34699
*2
*4*3
*5 *6
*7
*1*1
05±1442
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(a) Service Check Mode
(1) Start the diagnosis system.
Display ItemFunction
Check/*2Check results are displayed.
Memory CLR/*3
Pressing this switch for 3 sec. deletes all
the information about master component
registration.
Code CLR/*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 ºDiag-
nosis Menuº.
LAN Mon/*7Pressing this switch activates the ºLAN
Monitorº.
Components:/*1
DisplayName
EMVMulti±display (CRT display) display
NAVINavigation ECU
BODYBody ECU (Combination Meter Assy)
AUDIO H/URadio receiver assy
HINT:
Service check displays the check results based on the informa-
tion obtained from each component's response to ºService
Check Executionº and ºDiagnosis Memory Requestº, and the
information of ºCurrent DTC Notificationº (the Unit Check Mode
and the LAN Monitor information that will be displayed on the
next screens.).
(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.
No ErrNo DTC is identified.
HINT:

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

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

I32709
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*2
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*1
I34700
*2
*1
*3
± DIAGNOSTICSNAVIGATION SYSTEM
05±1443
AVENSIS REPAIR MANUAL (RM1018E)
(3) ºEXCHº, ºCHEKº and ºOldº can be used as switches
to activate ºUnit Check Modeº for detailed informa-
tion. Check troubled parts of the components in this
mode by referring to the DTC code list.
Display ItemDescription
Component name/*1Name of component to be checked is
displayed.
Code CLR/*2
Pressing this switch for 3 sec. deletes
DTC memory of the selected diagnosis
component.
Service/*3Pressing this switch returns to the ºSer-
vice Check Modeº.
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 identified as ºEXCHº in the
Service Check is displayed as classified into Current DTC
and Past DTC.
(b) LAN Monitor
(1) Start the Diagnosis System.
(2) Select ºLAN Monº
Display ItemFunction
CHEK/*1Check results are displayed.
MENU/*2Pressing this switch returns to the ºSer-
vice Check Modeº.
BACK/*3Pressing this switch returns to the ºSer-
vice Check Modeº.
HINT:
System Check displays the check results based on the informa-
tion obtained from each component's response to ºService
Check Executionº and ºDiagnosis Memory Requestº, and the
information of ºCurrent DTC Notificationº (the LAN Monitor that
will be displayed on the next screens).
(3) Read Check Result
Check ResultMeaning
OKNo DTC is identified.
EXCHOne or more DTC requesting for exchange are detected.

I34701
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05±1444
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)CHEK
One or more DTC requesting for check are detected.
NCON
No connection response to Diagnosis System start±up,
where as 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,
where as it responds to the Diagnosis System start±up.
No ErrNo DTC is identified.
HINT:

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

After deleting the diagnosis memory, press ºRecheckº
and make sure ºOKº is displayed on the screen.
(4) ºCHEKº can be used as switches to activate ºLAN
Monitorº 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.
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.
Service/*7Pressing this switch returns to the ºLAN
Monitorº.
HINT:
Detecting no LAN DTC activates the LAN Monitor on the
screen.

Room Lamp Output
Normal wave of UNLOCK switchUnmatching recognition code
No diagnosis outputs ON
OFF
T1: 0.25 sec. Wave is being received ON
OFF
OFF T1 T1 T1 T2 Normal wave of LOCK switch
ON
OFF
T1 T2
Normal wave of luggage door (back door)
unlock switch
ON
OFF
T2
T2
T2: 0.5 sec. Room Lamp Output
Room Lamp OutputRoom Lamp Output
Room Lamp Output
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
05±1579
AVENSIS REPAIR MANUAL (RM1018E)
6 CHECK BY SELF±DIAGNOSTIC MODE
(a) Inspect the diagnosis outputs when the door control transmitter switch is held down (The diagnosis
outputs can be checked with the outputs of the room lamp).
HINT:

In the case of a reception of the normal wave of the door LOCK, UNLOCK switch or luggage door (back
door) unlock switch (room lamp blinking), go to step A.

In the case of an unmatching recognition code (room lamp ON), go to step B.

In the case of no diagnosis outputs (room lamp OFF), go to step C.
A REPLACE INSTRUMENT PANEL JUNCTION
BLOCK ASSY
C Go to step 8
B

05±1580
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
7 REGISTER RECOGNITION CODE
(a) Check that the system can switch to rewrite mode or add mode and whether a recognition code can
be registered.
NG Go to step 16
OK
NORMAL (CARRY OUT INSPECTION OF FUNCTIONS)
8 SIMPLY CHECK TRANSMITTER BATTERY
(a) After replacing the transmitter battery with a new or normal one, check that the doors can lock and
unlock using the transmitter LOCK/UNLOCK switch.
NG REPLACE TRANSMITTER SUB±ASSY MODULE
SET DOOR CONTROL
OK
REPLACE TRANSMITTER BATTERY
9 CHECK RESPONSE OF DOOR CONTROL RECEIVER
(a) When a new or normal door control transmitter switch for the same type vehicle is held down, check
that a diagnosis of unmatching recognition code is output.
NG Go to step 13
OK
REPLACE TRANSMITTER SUB±ASSY MODULE SET DOOR CONTROL
10 CONFIRM INPUT METHOD OF SELF±DIAGNOSTIC MODE
(a) When the method for switching the system to self±diagnostic mode works, proceed to A.
(b) When the method for switching the system to self±diagnostic mode does not work, proceed to B.
B Go to step 6
A

05B0B±02
B65593
I12
B55023
GND
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
05±1607
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. CHECK TRANSPONDER KEY AMPLIFIER (COIL)
(a) Disconnect the I12 amplifier connector and check the resistance between the terminal of the wire har-
ness side connector and body ground.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
GND (I12±7) ±
Body groundGR±R ± Body groundConstantBelow 1

If the result is not as specified, there may be a malfunction on the wire harness side.
(b) Reconnect the I12 amplifier connector and check the resistance or voltage of each terminal of the con-
nector.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
VC5 (I12±1) ±
GND (I12±7)Y±B ± GR±RNo key in ignition key cylinder  With key0 V 10 to 14 V
CODE(I12±4) ±
GND (I12±7)Y±G ± GR±RNo key in ignition key cylinder  With keyWaveform 1
TXCT (I12±5) ±
GND (I12±7)L±R ± GR±RNo key in ignition key cylinder  With keyWaveform 2
GND (I12±7) ±
Body groundGR±R ± Body groundConstantBelow 1

If the result is not as specified, the amplifier may have a malfunction.
(c) Inspect using an oscilloscope.
Waveform 1 (Reference):
TerminalCODE ± GND
Tool Setting10 V/DIV., 10 ms/DIV.
ConditionIgnition switch ON

B55024
GND
B50659
T8 05±1608
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
Waveform 2 (Reference):
TerminalTXCT ± GND
Tool Setting10 V/DIV., 10 ms/DIV.
ConditionIgnition switch ON
2. CHECK TRANSPONDER KEY ECU ASSY
(a) Disconnect the T8 ECU connector and check the voltage and resistance between each terminal of the
wire harness side connector.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
AGND (T8±13) ±
Body groundGR±R ± Body groundConstantBelow 1

+B (T8±1) ±
GND (T8±14)W±R ± W±BConstant10 to 14 V
IG (T8±2) ±
AGND (T8±13)B±W ± GR±RIgnition switch OFF ON0 V 10 to 14 V
KSW (T8±10) ±
AGND (T8±13)Y ± GR±RNo key in ignition key cylinder  With key10 k
or higher
Below 1

If the result is not as specified, there may be a malfunction on the wire harness side.
(b) Reconnect the T8 ECU connector and check the voltage between each terminal of the connector.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
KSW (T8±10) ±
AGND (T8±13)Y ± GR±RNo key in ignition key cylinder  With key10 to 14 V 0 V
VC5 (T8±8) ±
AGND (T8±13)Y±B ± GR±RIgnition switch OFF ON0 V 4.6 to 5.4 V
TXCT (T8±12) ±
AGND (T8±13)L±R ± GR±RIgnition switch OFF ONWaveform 1
CODE (T8±11) ±
AGND (T8±13)Y±G ± GR±RIgnition switch OFF ONWaveform 2
EFIO (T8±6) ±
AGND (T8±13)GR ± GR±RIgnition switch OFF ONWaveform 3
EFII (T8±7) ±
AGND (T8±13)W ± GR±RIgnition switch OFF ONWaveform 4
If the result is not as specified, the ECU may have a malfunction.

B69239
GND
B69240
GND
B69241
GND
B69242
GND
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
05±1609
AVENSIS REPAIR MANUAL (RM1018E)
(c) Inspect using an oscilloscope.
Waveform 1 (Reference):
TerminalTXCT ± GND
Tool Setting5 V/DIV., 20 ms/DIV.
ConditionIgnition switch ON
Waveform 2 (Reference):
TerminalCODE ± GND
Tool Setting10 V/DIV., 20 ms/DIV.
ConditionIgnition switch ON
Waveform 3 (Reference):
TerminalEFIO ± GND
Tool Setting5 V/DIV., 50 ms/DIV.
ConditionIgnition switch ON
Waveform 4 (Reference):
TerminalEFII ± GND
Tool Setting5 V/DIV., 50 ms/DIV.
ConditionConstant

054CI±07
±
DIAGNOSTICS ENGINE IMMOBILISER SYSTEM
05±1605
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
1. TRANSPONDER KEY ECU DTC CHART
DTC No.
(See Page)Detection ItemTrouble Area
*B2780
(05±1613)Push Switch/Key Unlock Warning Switch Malfunction

Unlock warning switch

Wire harness

Transponder key ECU assy
B2784
(05±1616)Antenna Coil Open/Short

Wire harness

Transponder key amplifier

Transponder key ECU assy
B2793
(05±1618)Transponder Chip Malfunction
Key
B2794
(05±1619)Unmatched Encryption Code
Key
B2795
(05±1620)Unmatched Key Code
Key
B2796
(05±1621)No Communication in Immobiliser System

Key

Transponder key amplifier

Wire harness

Transponder key ECU assy
B2797
(05±1624)Communication Malfunction No. 1

Key

Wire harness

Transponder key amplifier

Transponder key ECU assy
B2798
(05±1621)Communication Malfunction No. 2
Key
HINT:
*: Except for 1AZ±FE engine
2. ECM DTC CHART
NOTICE:
The DTC for the immobiliser system is specified. If the other codes are out\
put, check the DTC chart
of the engine control system.
DTC No.
(See Page)Detection ItemTrouble Area
B2799
(05±1625)Engine Immobiliser System Malfunction

Wire harness

Key

Transponder key ECU assy

Transponder key amplifier

ECM

05B0A±03
B50154
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DLC3 05±1602
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1. DIAGNOSIS SYSTEM
(a) Description
(1) The ECM controls the function of the immobiliser system on the vehicle.
Data of the immobiliser system and the Diagnostic Trouble Code (DTC) can be read in the Data
Link Connector 3 (DLC3) of the vehicle. When trouble occurs in the immobiliser system, even
though the security indicator lamp does not come on, DTCs can be checked.
Therefore, the immobiliser system seems to be malfunctioning, use the hand±held tester to
check for a malfunction and repair it.
(b) Inspect the DLC3.
The vehicle's ECM uses the ISO 9141±2 (Euro±
OBD)/ISO 14230 (M±OBD) communication protocol.
The terminal arrangement of the DLC3 complies with the
ISO 15031±3 and matches the ISO 9141±2/ISO 14230
format.
Standard:
Tester ConnectionConditionSpecified Condition
7 (Bus + line) ± 5 (Signal ground)During communicationPulse generation
4 (Chassis ground) ± Body groundAlwaysBelow 1

5 (Signal ground) ± Body groundAlwaysBelow 1

16 (B+) ± Body groundAlways10 to 14 V
HINT:
If the screen displays UNABLE TO CONNECT TO VEHICLE after you have connected the cable of the
hand±held tester to the DLC3, turned the ignition switch ON and used the hand±held tester, the problem
may be on the vehicle side or the tester side.

If communication is normal when the tester is connected to other vehicle, inspect the DLC3 of the origi-
nal vehicle.

If communication is still impossible when the tester is connected to another vehicle, the problem may
be in the tester itself, so consult the Service Department listed in the tester's instruction manual.
2. Using hand±held tester:
CHECK DTC
(a) Checking DTCs.
(1) Connect the hand±held tester to DLC3.
(2) Turn the ignition switch ON.
(3) Read DTCs by following the prompts on the tester screen.
HINT:
Refer to the hand±held tester operator's manual for further details.
(b) Clear the DTCs from memory.
(1) Connect the hand±held tester to DLC3.
(2) Turn the ignition switch ON.
(3) Erase DTCs by following the prompts on the tester screen.
HINT:
Refer to the hand±held tester operator's manual for further details.