TOYOTA AVENSIS 2005 Service Repair Manual

05AF1±02
B68141
Vehicle Rear Side
Vehicle Front Side
Integration Relay
DN
DA
DN
DB
DA
DB
± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
05±1591
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. INSPECT INSTRUMENT PANEL J/B ASSY (INTEGRATION RELAY)

05±1592
± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(a) Disconnect the DA, DB and DN J/B connectors.
(b) Check the voltage or resistance of each terminal of the wire harness side connectors.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
B (DB±16) ±
Body groundW±R ± Body ground
Constant10 to 14 V
B (DN±1) ± *1
B±G ± Body groundConstant10 to 14 V
B (DN 1)
Body ground
*2
B±L ± Body ground10 to 14 V
E (DA±9) ±
Body groundW±B ± Body groundConstantBelow 1
KSW (DA±8) ±
Body groundY ± Body groundNo key is inserted in ignition key cylinder
Key inserted10 kor higher

Below 1
HINT:
*
1: Except 1CD±FTV
*
2: 1CD±FTV
If the result is not as specified, there may be a malfunction on the wire harness side.
(c) Reconnect the DA, DB and DN J/B connectors.
(d) Check the voltage of each terminal of the connectors.
Standard:
Symbols (Terminal No.)Wiring ColorConditionSpecified Condition
DCTY (DB±13) ±
Body groundR ± Body groundDrive side door CLOSED
OPEN10 to 14 V 
Below 1 V
If the result is not as specified, the J/B may have a malfunction.

05AF5±02
B67412
Unlock Warning Switch Assy
Front Door Courtesy Lamp Switch Assy
Integration Relay
Combination Meter Assy
Instrument Panel J/B AssyWarning Buzzer
Instrument panel J/B Assy
Unlock Warning Switch Assy
Front Door Courtesy Lamp Switch AssyCombination Meter Assy
Warning Buzzer
RHD ModelsLHD Models
Integration Relay
Center J/B
05±1590
± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

05AF0±02
± DIAGNOSTICSKEY REMINDER WARNING SYSTEM
05±1589
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1. USING HAND±HELD TESTER
(a) Connect the hand±held tester to the DLC3.
(b) Monitor the ECU data by following the prompts on the tester screen.
HINT:
The hand±held tester has a ºSnapshotº function which records the monitored data.
Refer to the hand±held tester operator's manual for further details.
2. DATA LIST
HINT:
Using the DATA LIST displayed by the hand±held tester, you can read the value of the switch, sensor, actua-
tor etc. without parts removal. Reading the DATA LIST as the first step of troubleshooting is one way to short-
en the labor time.
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON.
(c) Read the DATA LIST according to the display on tester.
Standard (Integuration relay):
ItemMeasurement Item/Display
(Range)Normal ConditionDiagnostic Note
KEY UNLK WRN SWUnlock warning switch signal/ ON
or OFFON: Key is in ignition key cylinder
OFF: No key is in ignition key cyl-
inder
±
D DOOR CTY SWDriver side door courtesy switch
signal/ ON or OFFON: Driver side door is open
OFF: Driver side door is closed±

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

B66772
Instrument Panel J/B Assy
Integration
Relay
FRLY 6
I14 LG
J11D15 T10
Turn Signal Flasher Relay
EHW8
To
Hazard Warning
Signal SwitchIC2
J25
*
1*2
J10 J24
*1*2
J10 J24
*
1*2
LG
LG
LGDDF
FB
*
1: LHD Models
*
2: RHD Models J/C 05±1584
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
NO ANSWER±BACK (HAZARD WARNING LAMP)
CIRCUIT DESCRIPTION
If there is no answer±back of the hazard warning lamps although the wireless door lock/unlock function is
operating normally, there might be a malfunction in the hazard warning lamp signal that is output from the
integration relay.
WIRING DIAGRAM
05BNC±01

B66768
I14
Instrument Panel J/B Assy
T10
Turn Signal Flasher Relay
Wire Harness Side
EHW
FRLY
±
DIAGNOSTICS WIRELESS DOOR LOCK CONTROL SYSTEM
05±1585
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 CHECK WIRELESS DOOR LOCK FUNCTIONS
(a) Check whether the wireless door lock functions by operating the transmitter s\
witch.
HINT:
When the wireless door LOCK/UNLOCK operation can be performed, it means that\
the wireless signal from
the transmitter is properly input to the integration relay.
NGGo to FLOW CHART (See page 05±1575)
OK
2 CHECK OUTPUTS OF HAZARD WARNING LAMPS
(a) Check that the hazard warning lamps blink when the hazard warning signal\
switch is pressed. NGGo to LIGHTING SYSTEM (See page 65±2)
OK
3 CHECK WIRE HARNESS (FLASHER RELAY ± INSTRUMENT PANEL J/B ASSY)
(a) Disconnect the T10 relay connector.
(b) Disconnect the I14 J/B connector.
(c) Check the resistance between the wire harness side con- nectors.
Standard:
Tester ConnectionSpecified Condition
T10±8 (EHW) ± I14±15 (FRLY)Below 1

NG REPAIR OR REPLACE HARNESS AND
CONNECTOR
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY

B67694
IG
10 CK CA
Instrument Panel J/B AssyR±W
1 21
3
IG1 AM1
Battery B*
2
G±R
DH1
AM1T6
Theft Warning ECU Assy
Center J/B Assy
7
R±W
I13
Ignition Switch
Assy1G±Y
Main 3 3
4D 4BB±G*
1B±G*1
W*2
1 DA9
1 5 3 GAUGE1
IG1
Relay
ED1 DN DH 5 1DB
7
ALT
ALT Engine Room R/B No. 3
*
1: Gasoline
*2: 1CD±FTV1 B±L*
2
IJ W±B
21
21 Engine Room J/B No. 4
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
05±1639
AVENSIS REPAIR MANUAL (RM1018E)
IGNITION SWITCH CIRCUIT
CIRCUIT DESCRIPTION
When the ignition switch is turned to the ON position, battery positive voltage is applied to terminal IG of the
theft warning ECU.
WIRING DIAGRAM
05BAD±01