key TOYOTA AVENSIS 2005 Service Service Manual

05AEZ±02
KEY REMINDER WARNING SYSTEM Check Sheet
Inspector 's
name:
Customer 's Name
Date Vehicle
Brought inProduction DateVIN
Licence No.
Odometer Reading/ /
/ /
Date Problem First Occurred
Frequency Problem Occurs/ /
ConstantIntermittent ( times a day)
Problem Symptomskm
miles
Key reminder buzzer does not sound
Weather Conditions
When Problem
OccurredWeather
Outdoor
TemperatureOnly onceFine
Various/Others
CloudyRainySnowy
Hot
Cold (Approx.
C (
F))
WarmCool
05±1588
± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05AEY±02
05±1586
±
DIAGNOSTICS KEY REMINDER WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
KEY REMINDER WARNING SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
HINT:
Use this procedure to troubleshoot the key reminder warning system.
The hand±held tester should be used in step 3 and 4.
1 VEHICLE BROUGHT TO WORKSHOP
2 CUSTOMER PROBLEM ANALYSIS CHECK AND PROBLEM SYMPTOM
3DTC CHECK (MULTIPLEX COMMUNICATION SYSTEM) (See page 05±1656)
(a) Check for DTCs and note any codes that are output.
(b) Delete the DTC.
(c) Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC su\
ggests. (1) If the DTC does not reoccur, proceed to A.
(2) If the DTC reoccurs, proceed to B.
B GO TO MULTIPLEX COMMUNICATION SYSTEM(See page 05±1656)
A
4PROBLEM SYMPTOMS TABLE (See page 05±1593)
(a) If the fault is not listed on the symptoms table, proceed to A.
(b) If the fault is listed on the symptoms table, proceed to B. B Go to step 5
A
5 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM
(a)Pre±check (See page 05±1655). (1) Inspection with the hand±held tester (ECU DATA MONITOR).
(b)Terminals of ECU(See page 05±1659).
(c)On±vehicleinspection (See page 73±26).
6 ADJUST, REPAIR OR REPLACE

± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
05±1587
AVENSIS REPAIR MANUAL (RM1018E)
7 CONFIRMATION TEST
END

05BAA±01
05±1634
±
DIAGNOSTICS THEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
Proceed to the reference page shown in the table below for each malfunction sym\
ptom and troubleshoot
each circuit.
HINT:
Troubleshooting of the theft deterrent system is based on the premise that the door loc\
k control system and
the wireless door lock control system are operating normally. Accordingly, before troubleshooting the theft
deterrent system, first make certain that the door lock control system and the wireless door lock control sys-
tem are operating normally.
SymptomSuspected AreaSee Page
Theft deterrent system cannot be set
1. Security indicator circuit
2. ECU power source circuit
3. Unlock warning switch circuit
4. Door key lock and unlock switch
5. Luggage compartment door key lock and unlock switch (Sedan)
6. Back door key lock and unlock switch (Liftback, Wagon)
7. Door courtesy switch circuit
8. Luggage compartment door courtesy switch circuit (Sedan)
9. Back door courtesy switch circuit (Liftback, Wagon)
10.Engine hood courtesy switch circuit05±1635
05±1637
05±1594 73±3
73±3
73±3
05±1631
05±1631
05±1631
05±1642
Security indicator does not blink when theft deterrent system is
set1. Security indicator circuit05±1635
Alarm sounding state is not canceled when ignition switch is
turned ON±OFF 10 times within 15 seconds1. Ignition switch circuit
2. Unlock warning switch circuit05±1639
05±1594
Theft deterrent system can be set even when any door is open
1. Door courtesy switch circuit
2. Luggage compartment door courtesy switch circuit (Sedan)
3. Back door courtesy switch circuit (Liftback, Wagon)05±1631
05±1631
05±1631
Horns (low pitched, high pitched) do not sound while theft deter-
rent system is in warning operation1. Horn (low pitched, high pitched) circuit05±1644
Hazard warning lamps do not flash while theft deterrent system is
in warning operation1. Hazard warning circuit65±5
Room lamp does not flash while theft deterrent system is in warn-
ing operation1. Room lamp circuit65±5
Theft warning siren sounds even when theft deterrent system is
not set1. Theft warning siren circuit05±1647
Hazard warning lamps flash even when theft deterrent system is
not set1. Hazard warning switch circuit65±5
Room lamp flashes even when theft deterrent system is not set1. Room lamp circuit65±5
Theft warning siren sounds even when theft deterrent system is
not set1. Theft warning siren circuit05±1647
Intrusion (theft warning) sensor does not detect any moving object
while theft deterrent system is set1. Instrution sensor circuit05±1650
Intrusion (theft warning) sensor sets off alarm while theft deterrent
system is not set or there is nothing moving inside vehicle with
theft deterrent system set
1. Intrusion sensor circuit05±1650
Intrusion (theft warning) sensor OFF switch does not operate1. Intrusion sensor circuit05±1650
Intrusion (theft warning) sensor OFF switch continues operating1. Intrusion sensor circuit05±1650

± DIAGNOSTICSTHEFT DETERRENT SYSTEM
05±1633
AVENSIS REPAIR MANUAL (RM1018E)
(a) Disconnect the DA, DB, DC, DM and DN J/B connectors.
(b) Disconnect the I14 integration relay connector.
(c) Check the voltage or continuity between each terminal of the wire harness side connectors and the
body ground.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
KSW (DA±8) ±
Body groundY ± Body groundNo key in ignition key cylinder  Key inserted10 k
or higher 
Below 1

E (DA±9) ± Body groundW±B ± Body groundConstantBelow 1

B (DB±16) ± Body groundW±R ± Body groundConstant10 to 14 V
B (DN±1) ± Body ground*1B±G ± Body ground
*2B±L ± Body groundConstant10 to 14 V
DCTY (DB±13) ±
Body groundR ± Body groundDriver side door CLOSED  OPEN10 k
or higher 
Below 1

PCTY (DC±9) ±
Body groundR ± Body groundPassenger side door CLOSED  OPEN10 k
or higher 
Below 1

RCTY (DM±12) ±
Body groundW±G ± Body groundRear door LH CLOSED  OPEN10 k
or higher 
Below 1

RCTY (DM±13) ±
Body groundW±G ± Body groundRear door RH CLOSED  OPEN10 k
or higher 
Below 1

*3
LGTY (I14±1) ±
Body groundR±Y ± Body groundLuggage compartment door CLOSED  OPEN10 k
or higher 
Below 1

*4
BDCY (I14±12) ±
Body groundR±Y ± Body groundBack door CLOSED  OPEN10 k
or higher 
Below 1

HINT:
*
1: Gasoline
*
2: 1CD±FTV
*
3: Sedan
*
4: Liftback, Wagon
If the result is not as specified, there may be a malfunction on the wire harness side.
(d) Reconnect the DA, DB, DC, DM and DN J/B connectors.
(e) Reconnect the I14 integration relay connector.
(f) Check the voltage between each terminal of the connector and the body ground.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
ACC (DH±3) ±
Body groundG ± Body groundIgnition switch ON10 to 14 V
If the result is not as specified, the J/B (integration relay) may have a malfunction.

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

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