Page 1649 of 5135
05±1598
±
DIAGNOSTICS KEY REMINDER WARNING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
9 CHECK BUZZER (COMBINATION METER)
(a)Check if the seat belt warning buzzer sounds when the vehicle speed is 15 km/\
h (9 mph) or more (See page 05±1509).
HINT:
When the seat belt warning buzzer sounds, the instrument panel J/B is ab\
normal.
NG REPLACE COMBINATION METER ASSY
OK
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY
Page 1650 of 5135
05AF2±02
±
DIAGNOSTICS KEY REMINDER WARNING SYSTEM
05±1593
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
SymptomSuspected AreaSee Page
Key reminder buzzer does not sound
1. Unlock warning switch assy
2. Front door courtesy lamp switch (Driver side)
3. Instrument panel junction block assy (Integration relay)
4. Combination meter
5. Wire harness05±1594
05±1594
05±1591
±
±
Page 1651 of 5135
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)
Page 1652 of 5135
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.
Page 1653 of 5135
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
Page 1654 of 5135
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±
Page 1655 of 5135
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
Page 1656 of 5135
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