2001 TOYOTA AVALON Service Repair Manual

DI01P-1 1
Customer Problem Analysis
Vehicle Brought to Workshop
Problem Symptom ConfirmationSymptom Simulation Symptom does not occur
Problem Symptom Table
Circuit Inspection
Identification of Problem
Repair
Confirmation Test
EndTitles inside
are titles of pages in this
manual with the page number indicated in the
bottom portion. See the indicated pages
for detailed explanations. 1
23
4
5
7
Step 5, 7 : Diagnostic steps permitting the use
of the hand-held tester and break-
out-box. P. DI-518
P. DI-531
P. IN-20
P. DI-532 ~ DI-544
Symptom occur
6
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-517
673 Author
: Date
:
2001 AVALON (RM808U)
THEFT DETERRENT SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
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.
For troubleshooting use a volt/ohm meter.
Be sure to use troubleshooting procedure appropriate to the diagnostic tool being used.
Perform troubleshooting in accordance with the procedure on the following page.

DI6L0-01
I11668
Door Lock Assembly

Door Lock Motor

Door Unlock Detection
SwitchLuggage Compartment
Door Key Lock and
Unlock Switch

Luggage Compartment Door Lock Motor

Luggage CompartmentDoor Courtesy Switch
Theft Deterrent Horn
Enjine Room Junction Block

HORN Fuse

HORN Relay

Headlight Control Relay
Door Lock Assembly

Door Lock Motor

Door Unlock Detection
Switch
Theft Deterrent ECU
Ignition Switch

Key Unlock Warning Switch
Driver Side Junction Block

DOME Fuse

ECU-IG No.1 Fuse

ECU-IG No.2 Fuse

Taillight Control Relay

Body ECU
Engine Hood Courtesy Switch
Security Indicator
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-529
685 Author
: Date
:
2001 AVALON (RM808U)
PARTS LOCATION

DI4DL-03
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
DI-519
675 Author
: Date
:
2001 AVALON (RM808U)
PRE-CHECK
1. THEFT DETERRENT SYSTEM
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 approx. 1 min-
ute.
At the same time the system locks all doors (If all door are not
locked at once, the system repeats door locking operation ev-
ery 6.38 seconds during the one minute alarm time).
There are 2 modes in this system, which are active mode and
passive mode.
All initial setting are performed in active mode. It can be
switched to passive mode by specified operation. (See step 4.
CHANGING METHOD OF PASSIVE MODE)
Condition:
Any of the doors (Including the engine hood and luggage
compartment door) is unlocked or opened without the
key. *1
The battery terminal is disconnected and reconnected.
The system receives panic signal from remote keyless
entry. *2
*1: Only active arming mode.
*2: When the ignition key is not inserted in the key cylinder.
There are 4 conditions in this system which are disarming
condition, disarming preparation condition, arming condition
and alarming condition.
(a) Disarming condition:
(1) When a user is near the vehicle.
(2) When the alarming function does not operate.
(3) When theft deterrent function is not performed.
(b) Disarming preparation condition:
(1) Time from a user locks a door to be leaves the ve-
hicle.
(2) Time until transferring to disarming condition.
(3) Theft deterrent function is not performed.
(c) Arming condition:
(1) When a user leaves the vehicle completely.
(2) When theft deterrent function is possible.

DI-520
- DIAGNOSTICSTHEFT DETERRENT SYSTEM
676 Author
: Date
:
2001 AVALON (RM808U)
(d) Alarming condition:
Is this condition, once theft is detected, it is informed us-
ing light and sound to people around the vehicle.
Refer to the table for alarming method or time.
Horn
Al i th dSecurity hornAlarming methodHeadlight
Taillight
Alarming time60 seconds
Alarming outputContinuous 0.40 secs. (ON)
0.40 secs. (OFF)
In the arming condition when either of doors is unlocked and
with not key in the key cylinder, force lock signal is output.

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)