TOYOTA CAMRY 1999 Service Repair Manual

I00228
0.25 ± 0.05 sec.
0.25 ± 0.05 sec.
ON
OFF
Horns Sounding and Lights Flashing
Pattern
0.2 ± 0.05 sec.
0.55 ± 0.05 sec. ON
OFF
Output of Key Lock Pattern
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±829
1064 Author: Date:
(3) About 30 seconds after the process±(2), on the pre-
vious page the Theft Deterrent mode will automati-
cally start.
HINT:
If, while following above steps, you use the key or the remote
control to lock the door, the system will be set to ACTIVE ARM-
ING MODE.
3. THEFT DETERRENT OPERATION
When the system is set to the theft deterrent mode and any of
the following conditions are met, the system sounds the horns
and flashes the headlights and the taillights for about 1 minute.
At the same time locks all doors (If all doors are not locked at
once, the system repeats door locking operation every 0.55 se-
conds during the one±minute alarm time).
Condition
(1) Any of the doors (Including the engine hood and
luggage compartment door) is unlocked or opened
without the key. *1
(2) The battery terminal is disconnected and recon-
nected. *2
(3) The system receives panic signal from remote key-
less entry. *3
*1: Only active arming mode.
*2: When the ignition key is not inserted in the key
cylinder.

I00229
0.75 ± 0.1 sec.
1.25 ± 0.1 sec.
ON
OFF
Blinking Pattern Security only: DI±830
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1065 Author: Date:
4. CANCELLATION OF THEFT DETERRENT OPERA-
TION OR MODE
The theft deterrent operation of mode can be cancelled when
any of the following conditions is met.
No.ConditionCancel of OperationCancel of Mode
1Unlock front doors with the keyEffectiveEffective
2Unlock doors with remote keyless entryEffectiveEffective
3Insert key into ignition key cylinder and turn
it to ACC or ON positionEffectiveEffective
4About 1 minute passes after theft deterrent
operation beginsAutomatic stop *1±
5Unlock the luggage compartment door with
the key or keyless entry.UneffectiveEffective
6Unlock the luggage compartment door with
the keyless entry.UneffectiveEffective
7
If the system receives panic signal again or
unlock signal when the system is activated
by panic signal
Effective *2Uneffective
6If the system receives unlock signal when
the system is activated by panic signalEffectiveEffective
*1: The system is set to the theft deterrent mode again in
about 2 seconds after the operation stops, if all doors are
closed.
*2: The alarm caused by the panic signal malces the sys-
tem in the previous condition.
5. INDICATOR LIGHT (LED)
The indicator light functions as shown below according to the
system condition in the theft deterrent mode. It remains OFF in
the initial state.
System ConditionIndicator Light
During set preparation timeON
When the mode is set*OFF
When alarm is activatedON
When the system is temporally cancelled*OFF
*: The indicator flashes with the output from the immobiliser.
6. KEEPING POWER SUPPLY FUNCTION IN CASE OF
DOME FUSE OPEN
Even if the dome fuse blows open on the theft deterrent mode,
the system will keep working on the theft deterrent mode.

Remove the ignition key from key cylinder.
All the doors, engine hood and luggage
compartment door are closed and unlocked.
Any of doors is locked and unlocked by turns
3 times by the key or remote control.
Driver 's side knob for doorlock is locked and
unlocked 3 times.
Driver's side doors is opened.
The system starts force lock at once after 2
sec.
Driver's side knob for door lock is unlocked.
Driver's side door is closed and opened 2
times
Driver's side knob for door lock is locked and
unlocked.
The system starts force lock at once after 2
sec.
PASSIVE MODE OFF
Driver's side door is closed and opened 4
times
Driver's side knob for door lock is locked and
unlocked.
The system starts force lock at once after 2
sec.
PASSIVE MODE ON
Within
30 sec.
Within
20 sec.
HINT:

Initial mode is PASSIVE MODE OFF.

If there is a different signal in the middle of changing, it is invalied.
Input to the vehicle
Output from the vehicle
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI±831
1066 Author: Date:
7. CHANGING METHOD OF PASSIVE MODE
(ON or OFF)

N09348
ECUTOYOTA hand±held tester
TOYOTA Break±out±box
DI±832
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1067 Author: Date:
8. ECU TERMINAL VALUES MEASUREMENT BY USING
TOYOTA BREAK±OUT±BOX AND TOYOTA HAND±
HELD TESTER
(a) Hook up the TOYOTA break±out±box and TOYOTA
hand±held tester to the vehicle.
(b) Read the ECU input/ output values by following the
prompts on the tester screen.
HINT:
TOYOTA hand±held tester has a ºSnapshotº function.
This records the measured values and is effective in the diagno-
sis of intermittent problems.
Please refer to the TOYOTA hand±held tester / TOYOTA
break±out±box operator's manual for further details.

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

I00235
Door Key Lock and
Unlock SwitchDoor Lock Assembly

Door Unlock Detection
Switch Door Lock Assembly

Door Unlock Detection
Switch
Door Lock Assembly

Door Unlock Detection
Switch
Door Lock Assembly

Door Unlock Detection
SwitchLuggage Compartment
Door Key Lock and
Unlock Switch
Luggage Compartment
Door Courtesy Switch Door Courtesy Switch Door Courtesy
Switch
DI±834
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1069 Author: Date:

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

DI±836
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1071 Author: Date:
+B1 e Body ground
(T4±12 eBody ground)R eW±BAlways10 ± 14 V
IG e E
(T4±13 e T3±7)B±R e W±BIgnition switch is turned to ºONº position10 ± 14 V
LSWD e ELRWB
Door unlock detection switch ºONº
(Driver's door)Below 1 WLSWD e E
(T4±14 e T3±7)L±R e W±BDoor unlock detection switch ºOFFº
(Driver's door)1 MW or higher
LSWP e EYWB
Door unlock detection switch ºONº
(Passenger's door)Below 1 WLSWP e E
(T4±15 e T3±7)Y e W±BDoor unlock detection switch ºOFFº
(Passenger's door)1 MW or higher
LSWR e ELYWB
Door unlock detection switch ºONº
(Rear door)Below 1 WLSWR e E
(T4±16 e T3±7)L±Y e W±BDoor unlock detection switch ºOFFº
(Rear door)1 MW or higher
PANI e ELGWBIt is receiving panic signal from remote keyless entryBelow 1 WPANI e E
(T4±18 e T3±7)LG e W±BExcept above mention1 MW or hegher
+B2 e Body ground
(T3±1 e Body ground)L±W e Body
groundAlways10 ± 14 V
IND e E
(T3±6 e T3±7)R±Y eW±BDuring set preparation3 ± 5 V
E e Body ground
(T3±7 e Body ground)W±B e Body
groundAlways10 ± 14 V
SH e E
(T3±9 e T3±7)W±L e W±BAlways10 ± 14 V
HEAD e E
(T3±10 e T3±7)R±B e W±BLight control switch ºHEADº10 ± 14 V
TA I L e E
(T3±11 e T3±7)G±R e W±BLight control switch ºTAILº or ºHEADº10 ± 14 V
HORN e E
(T3±12 e T3±7)G±B e W±BHorn switch ºOFFº10 ± 14 V

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.

DI06S±04
I04447
Theft Deterrent ECU
9 Theft Deterrent
Indicator Light
5IND 6
BR
IH
R±Y
T3 R±YE
D
J9J10
Junction Connector
DI±838
± DIAGNOSTICSTHEFT DETERRENT SYSTEM
1073 Author: Date:
CIRCUIT INSPECTION
Indicator Light Circuit
CIRCUIT DESCRIPTION
When the theft deterrent system is preparing to set, this circuit lights up the indicator light. When the system
has been set, it continuously turns the indicator light on for 1 second and turns it off for 1 second, thus blinking
the indicator light.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 Check indicator light.
PREPARATION:
Remove combination meter.
CHECK:
Connect the positive (+) lead from the battery to terminal C9 and the negative (±) lead to terminal B16 of
combination meter connector then check indicator light comes ON.
(See combination meter on page BE±46)
NG Replace combination meter.
OK