TOYOTA AVALON 2001 Service Repair Manual

Disarming condition
Any of the following conditions is met

When all doors and engine hood are closed, lock all the doors using a key.

When all doors and engine hood are closed, lock all the doors using wireless remote function.

When all doors and engine hood are closed, open and close either of doors and engine hood
then close and lock all doors and engine hood.
Disarming preparation condition
Any of the following conditions is met

30 seconds elapse when the engine hood
is closed and all doors are locked.
Any of the following conditions is met

Close and open either of all doors and
engine hood.

Lock and unlock either of doors.

Insert a key into the ignition key cylinder.

Reconnect the battery.
Arming condition
Any of the following conditions is met

Unlock the locked doors using the wireless
remote function.

Unlock the locked doors using the key.

Insert the key into the ignition key cylinder
and turn the ignition key ON.
Any of the following conditions is met

Either of closed doors opens.

Either of locked doors is unlocked by any
operation other than key or wireless remote
function.

The closed engine hood is opened.

The battery is reconnected.

Ignition switch turned to ON.
Alarming condition
Any of the following conditions is met

Unlock the locked doors using the wireless
remote function.

Unlock the locked doors using the key.

Insert the key into the ignition key cylinder
and turn the ignition key ON.
In this mode, once theft is detected, it is
informed using light and sound to people
around the vehicle.
The alarming time described above passes.
(Key not inserted in ignition cylinder.)
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-521
677 Author
: Date
:
2001 AVALON (RM808U)
2. ACTIVE ARMING MODE

DI-522
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
678 Author
: Date
:
2001 AVALON (RM808U)
Indicator light output:
ConditionIndicator light
Disarming conditionOFF
Arming preparation conditionON
Arming conditionOFF
Alarming conditionON
HINT:
Even in disarming condition, the indicator light flash. (Due to the
signal output form immobilizer system). The indicator always
flashes receiving the signal from the immobilizer system at any
time in the arming condition.
Flashing frequency:
0.2 seconds (ON)
1.8 seconds (OFF)
3. PASSIVE ARMING MODE
This mode can be switched according to the specified op-
eration.
All initially set modes (when shipped from factory) are ac-
tive mode. (No passive mode)

Perform any of the following and the system will go to Disarmed state (B):

Remove the key from the ignition, close the driver's door, then the ignition OFF.
Disarmed state (A)
Perform any of the following and the system
will return to Disarmed state (A):

Push the unlock switch on the wireless
remote.

Put the key in the lock on the driver's or the
passenger door and turn it towards unlock.

Put the key in the ignition.

Reconnect the battery.

Turn the ignition from OFF to ON.
Disarmed state (B)
Perform any of the following and the system
will go to Arming preparation:

Close all the doors, hood and
luggage compartment door.
Perform any of the following
and the system
will return to Disarmed state
(B):

Open any of the doors, the
hood or the
luggage compartment door.
Arming preparation
Perform any of the following
and the system
will go to Armed state:

Allow 30 seconds to elapse
with all the doors,
hood and luggage compart-
ment door closed.
Perform any of the following
and the system will return to
Disarmed state (A):

Push the unlock switch on
the wireless remote.

Put the key in the lock on
the driver's or the
passenger door and turn
it towards unlock.

Put the key in the
ignition and turn it ON.

Run the engine at 550 rpm
or faster for more than 10
seconds.
Armed state
Perform any of the following
and the system will go on to
Alarm sounding:

Open any of the doors and
allow the entry delay time
to pass.

Open the hood.

Open the luggage
compartment door with
something other than the
key or wireless remote.

Reconnect the battery.Perform any of the following
and the system will return to
Disarmed state (B):

Open the luggage
compartment door with the
wireless remote.

Open the luggage
compartment door with the
Key.
Perform any of the following and
the system
will return to Disarmed state (A):

Push the unlock switch on the
wireless
remote.

Put the key in the lock on the
driver's or the
passenger door and turn it to-
wards unlock.

Put the key in the ignition.

Reconnect the battery.

Turn the ignition from OFF to
ON.
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-523
679 Author
: Date
:
2001 AVALON (RM808U)

Perform any of the following
and the system will return to
Armed state:

The alarm sounding
period passes.
Alarm sounding
Perform any of the following
and the system will return to
Disarmed state (A):

Push the unlock switch on
the wireless remote.

Put the key in the lock on
the driver's or the passenger
door and turn it towards
unlock.

Put the key in the ignition
and turn it ON.

Run the engine at 550 rpm
or faster for more than
10 seconds.Perform any of the following
and the system will return to
Disarmed state (B):

Open the luggage
compartment door with the
wireless remote.

Open the luggage
compartment door with the
Key.
DI-524
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
680 Author
: Date
:
2001 AVALON (RM808U)

Door
Indicator
Alarming output
System condition
Arming condition Alarming
condition Entry delay time Close
Open
ON
OFF
ON
OFF
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-525
681 Author
: Date
:
2001 AVALON (RM808U)
HINT:
In arming condition either closed door is opened, entry delay
occurs. (14 secs.)
During this time, the mode transfers to disarming condition
when the condition described above * is met.
When the condition is not met, the system judges theft occurs,
the mode transfers to alarming condition.
Indicator light output:
ConditionIndicator light
Disarming conditionOFF
Arming preparation conditionON
Arming condition
(Entry delay time)OFF
(ON)
Alarming conditionON
HINT:
Even in disarming condition, the indicator light flash. (Due to the
signal output form immobilizer system). The indicator always
flashes receiving the signal from the immobilizer system at any
time in the arming condition.
Flashing frequency:
0.2 seconds (ON)
1.8 seconds (OFF)

DI-526
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
682 Author
: Date
:
2001 AVALON (RM808U)
Transfer to active mode:
In each passive mode, when ºdisarming condition of ac-
tive mode " arming preparation transfer conditionº is
met, the active mode transfers to each condition. In this
case, active mode continues till disarming condition.
Passive mode when transfer condition is
met.Active mode transfer condition
Disarming conditionArming preparation condition
Arming preparation conditionArming preparation condition
Arming condition
(During entry delay time)Arming condition
(After alarming time has elapsed, arming
condition)
Alarming conditionAfter alarming time has elapsed, arming
condition

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 door lock is locked and
unlocked 3 times.
Driver's side door 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
secs.
PASSIVE MODE OFF
Driver's side door is closed and opened 3
to 5 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 invalid.
*: Entry delay time
Input to the vehicle
Output from the vehicle
* 0 sec.4 times 5 times 3 times* 14 sec.
* 30 sec.
Within
2 sec. Within
2 sec.
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-527
683 Author
: Date
:
2001 AVALON (RM808U)
4. CHANGING METHOD OF PASSIVE MODE
(ON or OFF)

N09348
ECUHand-held tester
Break-out-box
DI-528
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
684 Author
: Date
:
2001 AVALON (RM808U)
5. ECU TERMINAL VALUES MEASUREMENT BY USING
BREAK-OUT-BOX AND HAND-HELD TESTER
(a) Hook up the break-out-box and hand-held tester to the
vehicle.
(b) Read the ECU input/ output values by following the
prompts on the tester screen.
HINT:
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 hand-held tester / break-out-box opera-
tor 's manual for further details.

DI01U-1 1
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-531
687 Author
: Date
:
2001 AVALON (RM808U)
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.
SymptomSuspect AreaSee page
The theft deterrent system cannot be set
1. Indicator light circuit
2. ECU power source circuit
3. Key unlock warning switch circuit
4. Luggage compartment door key lock and unlock switch
circuit
5. Engine hood courtesy switch circuitDI-532
DI-534
DI-542
DI-544
The indicator light does not blink when system is set.Indicator light circuitDI-532
When the system is set
(The system does not operate when the rear door is unlocked).Door unlock detection switch circuit
DI-686
DI-708
DI-643
When the system is set
(The system does not operate when the luggage compartment
door is opened by a method other than the key).
Luggage compartment door courtesy switch circuitDI-647
When the system is set
(The system does not operate when the engine hood is opened).Engine hood courtesy switch circuitDI-547
When the system is set
(It is not canceled when the ignition key is turned to ACC or ON
position (Except Europe Models)).
Ignition switch circuitDI-540
When the system is set
(It still operates when the luggage compartment door is opened
with the key (Except Europe Models)).Luggage compartment door key lock and unlock switch
circuitDI-544
While the system is in warning operation
(Horns do not sound).Horn relay circuitDI-672
While the system is in warning operation
(Headlights do not flash).Headlight control relay circuitDI-635
While the system is in warning operation
(Taillights do not flash).Taillight control relay circuitDI-633
While the system is in warning operation
(The door lock is not locked).Door unlock detection switch circuit
DI-686
DI-708
DI-643
System is still set even when a rear door is openDoor courtesy switch circuitDI-639
Even when the system is not set
(Horns sound).Horn relay circuitDI-672
Even when the system is not set
(Headlights stay on).Headlight control relay circuitDI-635
Even when the system is not set
(Taillights stay on).Taillight control relay circuitDI-633

DI1AH-13
I11580
T4
DI-530
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
686 Author
: Date
:
2001 AVALON (RM808U)
TERMINALS OF ECU
Symbols (Terminals No.)Wiring ColorConditionSTD Value
DSWH e EBWB
Engine hood courtesy switch ºONº
(Engine hood opened)Below 1 WDSWH e E
(T4-6 e T4-12)B e W-BEngine hood courtesy switch ºOFFº
(Engine hood closed)1 MW or higher
KSW e ERYWB
Key unlock warning switch ºONº
(Key inserted)Below 1 WKSW e E
(T4-4 e T4-12)R-Y e W-BKey unlock warning switch ºOFFº
(Key removed)1 MW or higher
LGU e E GWWBLuggage compartment door key lock and unlock switch ºONºBelow 1 WLGU e E
(T4-3 e T4-12)G-W eW-BLuggage compartment door key lock and unlock switch ºOFFº1 MW or higher
+B1 e Body ground
(T4-2 eBody ground)W-G eW-BAlways10 - 14 V
IG e E
(T4-14 e T4-12)Y-R e W-BIgnition switch is turned to ºONº position10 - 14 V
+B2 e Body ground
(T4-1 e Body ground)L-R e Body
groundAlways10 - 14 V
IND e E
(T4-12 e T4-12)V-W eW-BDuring set preparation3 - 5 V
E e Body ground
(T4-12 e Body ground)W-B e Body
groundAlways10 - 14 V
SH e SH-
(T4-24 e T4-25)B-R e WAlways10 - 14 V
MPX1 e Body ground
(T4-10 e Body ground)V e Body groundMultiplex communication circuit-