TOYOTA AVENSIS 2005 Service Repair Manual

05BA8±01






B68543
Rear Window Defogger
Switch AssyEngine Room R/B

DCC Fuse

HORN Fuse
Fuse Block

DOME Fuse

ECU±B2 Fuse
Center J/B
Security Indicator
Engine Room J/B No. 4*1
Engine Room R/B No. 4*1

ALT H±fuse
Engine Room R/B No. 3*2

ALT H±fuse
Engine Room R/B No. 2

HORN Relay
High Pitched Horn AssyLow Pitched Horn AssyHazard Warning Light
Hazard Warning Light
Instrument Panel J/B Assy

IG1 Relay

GAUGE1 Fuse

AM1 FuseHood Lock Assy

Engine Hood Courtesy Switch
Theft Warning ECU Assy
Unlock Warning Switch
Ignition Switch Assy*
1: Gasoline
*2: 1CD±FTV
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
05±1629
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

B67698
Front Map Lamp

Theft Warning Radar Sensor
Hazard Warning LightHazard Warning Light
Hazard Warning Light
Hazard Warning LightHazard Warning Light
Hazard Warning Light
LiftbackSedanFront Courtesy
Lamp Switch Front Door w/ Motor
Lock Assy RH
Front Door w/ Motor
Lock Assy LH
Front Courtesy
Lamp Switch
w/ Motor Back Door Lock Assy
(Back Door Lock Assy)Theft Warning
Siren Assy
w/ Motor Luggage Compartment Door
Lock Assy (Back Door Lock Assy)
Rear Courtesy
Lamp Switch Rear Door w/ Motor
Lock Assy LHRear Theft Warning Radar
Sensor (Wagon only)
Rear Theft Warning Radar
Sensor (Wagon only)
Rear Door w/ Motor
Lock Assy RH
Rear Courtesy
Lamp Switch
w/ Motor Back Door Lock Assy
(Back Door Lock Assy) 05±1630
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)

05BA7±01
THEFT DETERRENT SYSTEM Check SheetInspector 's name:
Customer 's Name
Date VehicleVIN
Production Date
Licence No.
Odometer Reading / /km
miles
Weather Conditions
When Problem
Occurred Frequency Problem OccursWeather
Outdoor
Temperature
/ /

Constant
Sometimes ( Times per day, month)

Once only Brought in


Security indicator light does not flash when theft deterrent system is set.
(It stays ON or does not light up at all)
Theft deterrent system
does not operate.When door is opened.
Theft deterrent system
cannot be canceled once
set.

Theft deterrent system
cannot be canceled during
warning operation.When key is inserted into ignition key cylinder and ignition switch is turned
ON±OFF 10 times within 15 seconds.
Warning operation does not start when theft deterrent system is set and door is opened with key.


Date Problem First Occurred

Fine
Cloudy
Rainy
Snowy

Various/Others

Hot
Warm
Cool

Cold (Approx.
C (
F))
Problem Symptom










Malfunction

Horns only

Door lock operation only

Hazard warning light only

Room lamp only

Theft warning siren only

Intrusion sensor only


When door is unlocked using wireless door lock control system. When engine hood is
opened.
When door is unlocked using wireless door lock control system.
Others
Theft deterrent system cannot be set. 05±1628
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05BA6±01
±
DIAGNOSTICS THEFT DETERRENT SYSTEM
05±1627
AVENSIS REPAIR MANUAL (RM1018E)
THEFT DETERRENT SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:

Use this procedure to troubleshoot the theft deterrent system.

The hand±held tester should be used at step 3.
1VEHICLE BROUGHT TO WORKSHOP
2CUSTOMER PROBLEM ANALYSIS CHECK AND SYMPTOM CHECK
(See page 05±1628)
3INSPECT COMMUNICATION FUNCTION OF LARGE±SCALE MULTIPLEX COMMU- NICATION SYSTEM (BEAN)
(a)Use the hand±held tester to check for normal function of the multiple\
x communication system.
(1)(ECU unconnected, communication line malfunctioning) Without code outp\
uts, proceed to A.
(2)(ECU unconnected, communication line malfunctioning) With code outputs\
, proceed to B.
BGo to MULTIPLEX COMMUNICATION SECTION(See page 05±1654)
A
4PROBLEM SYMPTOMS TABLE (See page 05±1634)
(a)When problem is not listed on the problem symptoms table, proceed to A.
(b)When problem is listed on the problem symptoms table, proceed to B. BGo to step 6
A
5PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
(a)Terminals of ECU (See page 05±1631)
(b)On±vehicle inspection (See page 73±31)
6 ADJUST, REPAIR OR REPLACE
7 CONFIRMATION TEST
END

B66227
E10
ECMT8
Transponder Key ECU Assy
IMI
IMO30*
1
27*2
29*1
26*2W GR
6
7EFIO
EFII
*1: 1CD±FTV
*2: Gasoline
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
05±1625
AVENSIS REPAIR MANUAL (RM1018E)
DTC B2799 ENGINE IMMOBILISER SYSTEM
MALFUNCTION
CIRCUIT DESCRIPTION
This DTC is output when the ECM detects errors in communication between the transponder key ECU assy
and the ECM or in the communication lines.
This DTC is also output when an engine start is attempted while the ECU communication ID between the
transponder key ECU and the ECM are different.
Before troubleshooting for this DTC, make sure that there is no DTC detected in the transponder key ECU.
If there is a key code±related DTC detected in the transponder key ECU, repair it first.
DTC No.DTC Detection ConditionTrouble Area
B2799

Error in communication between ECM and transponder
key ECU, and in communication line

Communication ID is different during communication with
transponder key ECU
Wire harness

Transponder key ECU assy

Transponder key amplifier

ECM
WIRING DIAGRAM
05B0J±03


B66229
T8
Transponder Key ECU Assy
E10
ECM Wire Harness Side
05±1626
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 CHECK WIRE HARNESS (TRANSPONDER KEY ECU ASSY ± ECM)
(TRANSPONDER KEY ECU ASSY OR ECM ± BODY GROUND)
(a) Disconnect the T8 ECU and E10 ECM connectors.
(b) Check the resistance of the wire harness side connectors.
Standard:
1CD±FTV
Terminal No.Specified Condition
T8±6 (EFIO) ± E10±30 (IMI)Below 1
T8±7 (EFII) ± E10±29 (IMO)Below 1

T8±6 (EFIO) or E10±30 (IMI) ±
Body ground
10 k
or higherT8±7 (EFII) or E10±29 (IMO) ±
Body ground10 k
or higher
Gasoline
Terminal No.Specified Condition
T8±6 (EFIO) ± E10±27 (IMI)Below 1
T8±7 (EFII) ± E10±26 (IMO)Below 1

EFIO (T8±6) or IMI (E10±27) ±
Body ground
10 k
or higherEFII (T8±7) or IMO (E10±26) ±
Body ground10 k
or higher
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
2 CHECK OPERATION OF TRANSPONDER KEY AMPLIFIER
(a) After replacing the transponder key amplifier, check that the engine starts.
NG NORMAL
(TRANSPONDER KEY AMPLIFIER DEFECTIVE)
OK
REPLACE TRANSPONDER KEY ECU ASSY

B52550
I12
Transponder Key AmplifierT8
Transponder Key ECU Assy
Y±G
CODE
411CODE
05±1624
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC B2797 COMMUNICATION MALFUNCTION NO.1
CIRCUIT DESCRIPTION
This DTC is output when an error occurs in normal communication.
HINT:
Some noise is found in the communication line.
DTC No.DTC Detection ConditionTrouble Area
B2797Keys are positioned too close to each other or noise oc-
curred in communication line

Key

Wire harness

Transponder key amplifier

Transponder key ECU assy
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK OPERATION OF TRANSPONDER KEY AMPLIFIER
(a) After replacing the transponder key amplifier, check that the engine starts.
OK NORMAL
(TRANSPONDER KEY AMPLIFIER DEFECTIVE)
NG
REPLACE TRANSPONDER KEY ECU ASSY
05B0I±03

B62676
I12
Transponder Key AmplifierT8
Transponder Key ECU Assy
VC5
CODE
TXCT
AGND Y±B
Y±G
L±R
GR±R8
11
12
13 1
4
5
7 TXCT
GND
ANT2 ANT1 VC5
CODE
CoilAmplifier
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
05±1621
AVENSIS REPAIR MANUAL (RM1018E)
DTC B2796 NO COMMUNICATION IN IMMOBILISER
SYSTEM
DTC B2798 COMMUNICATION MALFUNCTION NO.2
CIRCUIT DESCRIPTION
This code is stored in the memory when a key that does not have a transponder chip is inserted or if commu-
nication between the key and transponder key ECU is impossible.
DTC No.DTC Detection ConditionTrouble Area
B2796No communication

Key

Wire harness

Transponder key amplifier (Transponder key coil)

Transponder key ECU assy
B2798Communication error
Key
WIRING DIAGRAM
05B0H±03

05±1622
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 when using the hand±held tester and start from step 2 when not using the
hand±held tester.
1 READ VALUE OF HAND±HELD TESTER
(IMMOBILISER ECU (TRANSPONDER KEY ECU ASSY) (SWITCH CONDITION))
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON with the key that will not start the engine.
(c) Select IMMOBILISER on the hand±held tester.
OK:
SET
Ignition switch ON
UNSET
Without key
OK NORMAL
NG
2 CHECK WHETHER ENGINE STARTS WITH OTHER KEYS
(a) Check whether the engine starts with the other keys for the vehicle.
OK RE±REGISTER OR REPLACE KEY THAT WILL
NOT START ENGINE
NG
HINT:
Start the inspection from step 3 when using the hand±held tester and start from step 4 when not using the
hand±held tester.
3 READ VALUE OF HAND±HELD TESTER
(IMMOBILISER ECU (TRANSPONDER KEY ECU ASSY) (SWITCH CONDITION))
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON with the key that will does not start the engine.
(c) Select the item ANTENNA COIL on the hand±held tester.
OK: NORMAL
NG: FAIL
NG CHECK AND REPLACE TRANSPONDER KEY
ECU ASSY
OK




 

B64974
I12
Transponder Key Amplifier Wire Harness Side
T8
Transponder Key ECU Assy
± DIAGNOSTICSENGINE IMMOBILISER SYSTEM
05±1623
AVENSIS REPAIR MANUAL (RM1018E)
4 CHECK WIRE HARNESS (TRANSPONDER KEY ECU ASSY ± TRANSPONDER KEY
AMPLIFIER) (TRANSPONDER KEY ECU ASSY OR TRANSPONDER KEY AMPLIFI-
ER ± BODY GROUND)
(a) Disconnect the T8 ECU and I12 amplifier connectors.
(b) Check the resistance of the wire harness side connectors.
Standard:
Tester ConnectionSpecified Condition
T8±8 (VC5) ± I12±1 (VC5)
T8±11 (CODE) ± I12±4 (CODE)Below 1
T8±12 (TXCT) ± I12±5 (TXCT)Below 1

T8±13 (AGND) ± I12±7 (GND)
T8±8 (VC5) or I12±1 (VC5) ±
Body ground
T8±11 (CODE) or I12±4 (CODE) ±
Body ground
10 k
or higherT8±12 (TXCT) or I12±5 (TXCT) ±
Body ground10 k
or higher
T8±13 (AGND) or I12±7 (GND) ±
Body ground
NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
5 CHECK OPERATION OF TRANSPONDER KEY AMPLIFIER
(a) After replacing the transponder key amplifier, check that the engine starts.
NG NORMAL
(TRANSPONDER KEY AMPLIFIER DEFECTIVE)
OK
REPLACE TRANSPONDER KEY ECU ASSY