2005 TOYOTA AVENSIS diagnostic



B68490
Wire Harness Side
T6
Theft Warning ECU Assy
F19
Rear Window Defogger Switch Assy
B67863
Wire Harness Side
F19
Rear Window Defogger Switch Assy
05±1636
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
NG REPLACE REAR WINDOW DEFOGGER
SWITCH ASSY
OK
2 CHECK WIRE HARNESS (THEFT WARNING ECU ASSY ± REAR WINDOW DEFOG-
GER SWITCH ASSY (SECURITY INDICATOR))
(a) Disconnect the T6 ECU and F19 switch connectors.
(b) Check the resistance between the wire harness side con-
nectors.
Standard:
Tester ConnectionSpecified Condition
T6±25 (IND) ± F19±7Below 1

NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
3 CHECK WIRE HARNESS (REAR WINDOW DEFOGGER SWITCH ASSY (SECURITY
INDICATOR) ± BODY GROUND)
(a) Disconnect the F19 switch connector.
(b) Check the resistance between the wire harness side con-
nector and the body ground.
Standard:
Tester ConnectionSpecified Condition
F19±1 ± Body groundBelow 1

NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
REPLACE THEFT WARNING ECU ASSY

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

05BA9±01
B50657
T6
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
05±1631
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. CHECK THEFT WARNING ECU ASSY
(a) Disconnect the T6 ECU connector.
(b) Check the voltage or resistance of each terminal of the wire harness side connector.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
+B1 (T6±2) ± E (T6±29)W±R ± W±BConstant10 to 14 V
E (T6±29) ± Body groundW±B ± Body groundConstantBelow 1

IG (T6±10) ±
Body groundR±W ± Body groundIgnition switch OFF
ON0 V
10 to 14 V
DSWH (T6±34) ±
Body groundL±R ± Body groundEngine hood CLOSED
OPEN10 k
or higher

Below 1

If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the T6 ECU connector.
(d) Check the voltage between each terminal of the connector and the body ground.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
IND (T6±25) ±
Body groundV ± Body ground
Security indicator light lights up
(It lights up only for 30 sec. in alarm sounding state
It flashes when imobiliser system is operating)
3 to 6 V
HORN (T6±5) ±
Body groundG ± Body groundArmed state
Alarm sounding state0 V
10 to 14 V
CTLS (T6±27) ±
Body groundL±R ± Body groundSelf±power siren is souding
(Theft deterrent system is in alarm sounding state)5 V
S+B (T6±24) ± L W Body groundArming preparation state or armed state10 to 14 VS+B (T6 24)
Body groundL±W ± Body groundDisarmed stateBelow 1 V
IOUT (T6 26)No moving object detected by sensor10 to 14 VIOUT (T6±26) ±
Body groundL±B ± Body groundMoving object detected by sensor during arming preparation
state or armed statePulse generation
If the result is not as specified, the ECU may have a malfunction.

B67293
DADBDM
Vehicle Front Side Vehicle Rear Side
DB
DA
DHDC
I14
DN
DC
DH
I14
DM
DN
Integration Relay
05±1632
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2. CHECK INSTRUMENT PANEL J/B ASSY (INTEGRATION RELAY)

± 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.

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