Warning TOYOTA CAMRY 2000 Service Repair Manual

DI05O±03
I00217
I00216
I00215
I00241
Ignition Switch
Key Unlock Warning Switch
Wireless Door Lock ECU
Transmitter
Instrument Panel Junction Block
Integration Relay
Engine Room Junction Block

Door Lock Motor

Door Unlock Detection
Switch
Door Courtesy Switch
DOME FuseDoor Key Lock and Unlock Switch

Door Lock Motor

Door Unlock
Detection Switch
Door Lock Motor

Door Unlock
Detection Switch
Door Courtesy Switch
Door Courtesy Switch
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±807
1042 Author: Date:
PARTS LOCATION

DI1KR±03
I00227
1 2
63 74
8 5
9 10 11 12 13 14 15
DI±808
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1043 Author: Date:
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Voltage (V)
1 ± Ground (GND ± Ground )W ± BAlways.Below 1 V
4 G d(TAIL G d)GRTAIL lamps ºONºBelow 1 V4 ± Ground ( TAIL ± Ground )G ± RTAIL lamps ºOFFº10 ± 14 V
5 G d ( PINI G d )LGAlways.4 ± 6 V5 ± Ground ( PINI ± Ground )LGPush the PANIC switch.Below 1.5 V
7 G d(UL3 G d)RG
Door key lock and unlock switch ºUNLOCKº.
(Driver's Door)Below 1.5 V
7 ± Ground ( UL3 ± Ground )R ± GDoor key lock and unlock switch ºOFFº or ºLOCKº.
(Driver's Door)8 ± 10 V
8 ± 1 (+B ± E )RAlways.10 ± 14 V
9 ± Ground (PRG ± Ground )VIgnition switch ºONº10 ± 14 V
10 ± Ground (KSW ± Ground )L ± B
Key unlock warning switch ºONº.
(Key is inserted into key cylinder)Below 1 V10 Ground (KSW Ground )L B
Key unlock warning switch ºOFFº.10 ± 14 V
11 G d (LSWD G d)LR
Door unlock detection switch ºONº.
(Driver's Door)Below 1 V
11 ± Ground (LSWD ± Ground)L ± RDoor unlock detection switch ºOFFº.
(Driver's Door)10 ± 14 V
12 G d (LSWP G d)Y
Door unlock detection switch ºONº.
(Passenger's Door)Below 1 V
12 ± Ground (LSWP ± Ground)YDoor unlock detection switch ºOFFº.
(Passenger's Door)10 ± 14 V
13 G d(LSWR G d)LY
Door unlock detection switch ºONº.
(Either Rear Door)Below 1 V
13 ± Ground(LSWR ± Ground)L ± YDoor unlock detection switch ºOFFº.
(All Rear Doors)10 ± 14 V
14 G d (CTY G d )RWDoor courtesy switch ºONºBelow 1 V14 ± Ground (CTY ± Ground )R ± WDoor courtesy switch ºOFFº10 ± 14 V
15 G d (L G d )LWDoor key lock and unlock switch ºLOCKºBelow 1 V15 ± Ground (L ± Ground )L ± WDoor key lock and unlock switch ºOFFº or ºUNLOCKº8 ± 10 V

DI05Q±03
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±809
1044 Author: Date:
PROBLEM SYMPTOMS TABLE
Perform troubleshooting of the circuit for the applicable problem symptom in the order given in the chart be-
low. Proceed to the page located for each circuit.
HINT:

Troubleshooting of the wireless door lock control system is based on the premise that the door lock
control system and theft deterrent system are operating normally. Accordingly, before troubleshooting
the wireless door lock control system, first make certain that the door lock control system and theft de-
terrent system are operating normally.

If the instruction ºProceed to next circuit inspection shown on matrix chartº is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to continue the check.

If the trouble still reappears even through there are no abnormalities in any of the other circuits, check
and replace the Wireless Door Lock ECU as the last step.
SymptomSuspect AreaSee page
All functions of wireless door lock control system do no operate.
3. ECU Power Source Circuit.
4. Door Courtesy Switch Circuit.
5. Door Key Lock and Unlock Switch Circuit.
(Unlock Side)
6. Door Key Lock and Unlock Switch Circuit.
(Lock Side)
7. Key Unlock Warning Switch Circuit.
8. Wireless Door Lock ECU.DI±810
DI±821
DI±815
DI±817

DI±819
IN±31
Only door unlock operation is not possible (Lock operation is pos-
sible).
1. Door Key Lock and Unlock Switch Circuit
(Unlock Side)
2. Door Unlock Detection Switch Circuit
3. Wireless Door Lock ECU.DI±815
DI±819
IN±31
Only door lock operation is not possible (Unlock operation is pos-
sible).1. Door Key Lock and Unlock Switch Circuit
(Lock Side)
2. Wireless Door Lock ECUDI±817
IN±31
Only key confinement prevention function is not possible.1. Key Unlock Warning Switch Circuit
2. Wireless Door Lock ECUDI±819
IN±31

Wireless door lock function operates even when each door is
opened.

Automatic lock function operates even if any door is opened
within 30 seconds after all doors are unlocked by wireless door
lock control system.
1. Door Courtesy Switch Circuit
2. Wireless Door Lock ECUDI±821
IN±31
Wireless door lock functions incorrectly.
(Although one door is unlocked, when the transmitter switch is
pressed, all doors are unlocked.)1. Door Unlock Detection Switch Circuit
2. Wireless Door Lock ECUDI±813
IN±31
Warning operation will not be performed even if the panic button is
pressed.1. Panic Circuit
2. Wireless Door Lock ECUDI±823
IN±31

I00224
Wireless Door Lock ECU
Key Unlock
Warning
SwitchKSW L±B
W±B
1M1J7 5 5
1
2
3 7
IG10
1D
J/C L±B
W±B1M
Integration Relay
Instrument Panel J/BW6 J10 Instrument Panel J/B
L±B B
J9B
J11
A
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±819
1054 Author: Date:
Key Unlock Warning Switch Circuit
CIRCUIT DESCRIPTION
When the key is inserted in the ignition key cylinder, the key unlock warning switch comes ON, and when
the key is not inserted the switch is OFF.
When the key unlock warning switch is ON, the ECU operates the key confinement prevention function.
WIRING DIAGRAM
DI05V±03

N14695
CTY(+)
DI±822
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
1057 Author: Date:
INSPECTION PROCEDURE
1 Check operation of open door warning light.
CHECK:
Check that open door warning light comes ON when each door is opened, and goes OFF when all doors
are closed.
NG Check open door warning light circuit
OK
2 Check voltage between terminal CTY of wireless door lock ECU connector and
body ground.
PREPARATION:
Remove the wireless door lock ECU from No.1 instrument pan-
el brace.
CHECK:
Measure voltage between terminal CTY of wireless door lock
ECU connector and body ground, when all doors are closed.
OK:
Voltage: 10 ± 14 V
OK Proceed to next circuit inspection shown on
problem symptoms table (See page DI±809).
NG
Check and repair harness and connector between wireless door lock ECU and door courtesy
switch.

I00301
Wireless Door Lock ECUTheft Deterrent ECU
518
LG
PANI
PANIW6T4
± DIAGNOSTICSWIRELESS DOOR LOCK CONTROL SYSTEM
DI±823
1058 Author: Date:
Panic Circuit
CIRCUIT DESCRIPTION
This circuit will transmit a panic signal from a wireless door lock ECU to a theft deterrent ECU.
When the key is not inserted in the ignition key cylinder and the theft deterrent ECU receives the panic signal
from the wireless door lock ECU, warning operation will be performed.
WIRING DIAGRAM
DI05X±04

DI06N±05
THEFT DETERRENT SYSTEM Check Sheet
Inspector 's name:
Customer 's Name
Date of VehicleRegistration No.
Registration Year
Frame No.
Odometer Reading / /km
Mile
Weather Conditions
When Problem
Occurred Frequency Problem OccursWeather
Outdoor temperature
/ /

Constant
Sometimes ( Times per day, month)

Once only Brought in

Theft deterrent system cannot be set.

Indicator light does not flash when the theft deterrent system is set.
(It stays on or does not light at all.)

Theft deterrent system
does not operate.
When unlocked using the
door lock knob.

When the engine hood is
opened.

System cannot be
canceled once set.
When door is unlocked using key or wireless door lock control system.

When the key is inserted in the ignition key cylinder and turned to ACC or ON
position.
(However, only when the system has never operated)

When the luggage compartment door is opened with the key.

System cannot be
canceled during warning
operation.
When door is unlocked using key or wireless door lock control system.

When the key is inserted in the ignition key cylinder and turned to ACC or ON
position.

Warning operation starts when the system is set and the door or luggage compartment door is opened with
the key.

Others.
Date Problem First Occurred

Fine
Cloudy
Rainy
Snowy

Various/Others

Hot
Warm
Cool

Cold (Approx. 5F ( 5C))
Problem Symptom
Malfunction

Horns only

Theft deterrent horn only

Headlights only

Taillights only

Starter cut only

Door lock operation only
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±827
1062 Author: Date:
CUSTOMER PROBLEM ANALYSIS CHECK

DI06P±05
I00233
I00234
I00236
Theft Deterrent Horn
Horn
Engine Hood Courtesy SwitchE/G Room J/B No.2

DOME Fuse

HORN Fuse

ECU±IG Fuse

CIG Fuse

ST Relay

HORN Relay

Headlight Control
Relay
Theft Deterrent ECU
Ignition Switch Key Unlock Warning Switch
Instrument Panel J/B

DOOR Fuse

ST Fuse

Taillight Control
Relay
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±833
1068 Author: Date:
PARTS LOCATION

DI1KV±03
I01920
T4
T3
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±835
1070 Author: Date:
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Value
CTY e ERWWB
Door courtesy switch ºONº
(Rear door opened)Below 1 WCTY e E
(T4±1 e T3±7)R±W e W±BDoor courtesy switch ºOFFº
(Rear door closed)1 MW or higher
DSWL e ERYWB
Luggage compartment door courtesy switch ºONº
(Luggage compartment door opened)Below 1 WDSWL e E
(T4±2 e T3±7)R±Y e W±BLuggage compartment door courtesy switch ºOFFº
(Luggage compartment door closed)1 MW or higher
DSWH e EBWB
Engine hood courtesy switch ºONº
(Engine hood opened)Below 1 WDSWH e E
(T4±3 e T3±7)B e W±BEngine hood courtesy switch ºOFFº
(Engine hood closed)1 MW or higher
DSWD e ERGWB
Door courtesy switch ºONº
(Driver's door opened)Below 1 WDSWD e E
(T4±4 e T3±7)R±G e W±BDoor courtesy switch ºOFFº
(Driver's door Closed)1 MW or higher
DSWP e ERGWB
Door courtesy switch ºONº
(Passenger's door opened)Below 1 WDSWP e E
(T4±5 e T3±7)R±G e W±BDoor courtesy switch ºOFFº
(Passenger's door closed)1 MW or higher
KSW e ELBWB
Key unlock warning switch ºONº
(Key inserted)Below 1 WKSW e E
(T4±6 e T3±7)L±B e W±BKey unlock warning switch ºOFFº
(Key removed)1 MW or higher
LUG e E GWWBLuggage compartment door key lock and unlock switch ºONºBelow 1 WLUG e E
(T4±7 e T3±7)G±W eW±BLuggage compartment door key lock and unlock switch ºOFFº1 MW or higher
L2 e E LWWB
Door key lock and unlock switch ºLOCKº
(Driver's and passenger's doors)Below 1 WL2 e E
(T4±8 e T3±7)L±W e W±BDoor key lock and unlock switch ºUNLOCKº
(Driver's and passenger's doors)1 MW or higher
UL3 e E RGWB
Door key lock and unlock switch ºUNLOCKº
(Driver's door)Below 1 WUL3 e E
(T4±9 e T3±7)R±G e W±BDoor key lock and unlock switch ºLOCKº
(Driver's door)1 MW or higher
UL2 e E LWB
Door key lock and unlock switch ºUNLOCKº
(passenger's door)Below 1 WUL2 e E
(T4±10 e T3±7)L e W±BDoor key lock and unlock switch ºLOCKº
(passenger's door)1 MW or higher

DI06R±06
Details of Problem
The theft deterrent system cannot be set
Inspecting Circuit*1See page
DI±838 1. Indicator light circuit
2. ECU power source circuit
3. Key unlock warning switch circuit
7. Door courtesy switch circuit
8. Door unlock detection switch circuit
9. Engine hood courtesy switch circuit
The indicator light does not blink when system is setIndicator light circuit
When the
system is
set
When the rear doors are unlocked
When the luggage compartment door is opened
by a method other than the key4. Luggage compartment door key
lock and unlock switch circuit
5. Luggage compartment door
courtesy switch circuit
When the engine hood is opened
The system
does not
operateDoor unlock detection switch circuit
Luggage compartment door
courtesy switch circuit
Engine hood courtesy switch circuit
While the system is
in warning operation
Horns do not sound
Theft deterrent horn does not sound
Headlights do not flash
Taillights do not flash
The door lock is not locked in unlock conditionHorn relay circuit
Theft deterrent horn circuit
Headlight control relay circuit
Taillight control relay circuit
Door unlock detection switch circuit
6. Door key lock and unlock switch
circuit
It is not canceled when the ignition key is turned to
ACC or ON position
It still operates when the luggage compartment door is
opened with the key When the
system is
set
Ignition switch circuit
Luggage compartment door key
lock and unlock switch circuit
System is still set even when a rear door is open
Door courtesy switch circuit
Even when the
system is not
setHorns sound
Theft deterrent horn sounds
Headlights stay on
Taillights stay onHorn relay circuit
Theft deterrent horn circuit
Headlight control relay circuit
Taillight control relay circuit
DI±840
DI±853
DI±855
DI±858
DI±855
DI±864
DI±862
DI±866
DI±838
DI±862
DI±858
DI±866
DI±845
DI±843
DI±847
DI±849
DI±862
DI±851
DI±855
DI±864
DI±845
DI±843
DI±847
DI±849
*1: If numbers are given to the circuit proceed with troubleshooting in the order indicated by those numbers.
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±837
1072 Author: Date:
PROBLEM SYMPTOMS TABLE
Proceed to the reference page shown in the matrix chart below for each malfunction symptom and trouble-
shoot for each circuit.
HINT:
Troubleshooting of the theft deterrent system is based on the premise that the door lock control system is
operating normally. Accordingly, before troubleshooting the theft deterrent system, first make certain that
the door lock control system is operating normally.