TOYOTA AVALON 2001 Service Repair Manual

I06939
(-) terminal
I02935(+) terminal
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-93
1697 Author
: Date
:
2001 AVALON (RM808U)
(e) Install the battery (lithium battery).
3. CHECK BATTERY CAPACITY
HINT:

Make sure to use the TOYOTA electrical tester.

With the battery unloaded, judge can not be made wheth-
er the battery is available or not on the test.

When the transmitter is faulty, the energy amount left in
the battery might not be checked correctly.

On the lithium battery used for the transmitter, the voltage
more than 2.5 V with the battery unloaded is shown on the
tester until the energy is completely consumed.
Accordingly when inspecting the energy amount left in the
battery, it is necessary to measure the voltage when the
battery is loaded. (1.2 kW).
(a) Remove the cover using a (-) driver.
(b) Remove the battery (lithium battery) from the transmitter.
(c) Connect the lead to the (-) terminal of the transmitter and
install the battery.
(d) Connect the (+) tester to the (+) battery (lithium battery),
and (-) tester to the lead respectively.
(e) Press one of the transmitting switches on the transmitter
for approx. 1 second.
(f) Press the transmitting switch on the transmitter again to
check the voltage.
Standard: 2.1 V or more

N13470
I11597
1 2
BE-94
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1698 Author
: Date
:
2001 AVALON (RM808U)
HINT:

When the temperature of the battery is low, the judge can
not be made correctly.
When the outcome of the test is less than 2.1 V, conduct
the test again after leaving the battery in the place at 18
°C for more than 30 minutes.

By auto power off function, the voltage becomes no load
voltage (more than 2.5 V) condition 0.8 seconds after the
switch was pressed.
Make sure to read the voltage before of it.

High voltage might be shown 1 to 2 times after leaving the
battery, judge should be made with the voltage shown at
the 3rd time or later.
(g) Disconnect the lead.
(h) Set the battery (lithium battery) in the transmitter.
4. INSPECT WIRELESS DOOR LOCK CONTROL CAN-
CEL SWITCH
Switch positionTester connectionSpecified condition
OFF-No continuity
ON1 - 2Continuity
If continuity is not as specified, replace the switch.
If continuity is as specified, inspect the switch circuit.
5. INSPECT WIRELESS DOOR LOCK CONTROL CAN-
CEL SWITCH CIRCUIT (See page DI-653)
6. INSPECT WIRELESS DOOR LOCK BUZZER OPERA-
TION
Connect the positive (+) lead from the ohmmeter to terminal 1
and the negative (-) lead to terminal 2, and buzzer sounds.
If operation is not as specified, replace the buzzer.
7. INSPECT WIRELESS DOOR LOCK BUZZER CIRCUIT
(See page DI-653)

I04152
Wire Harness Side
I04153
From Back Side
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-95
1699 Author
: Date
:
2001 AVALON (RM808U)
8. Connector disconnected:
INSPECT WIRELESS DOOR LOCK CONTROL RE-
CEIVER CIRCUIT
Disconnect the connector from the receiver and inspect the
connector on the wire harness side, as shown.
Tester connectionConditionSpecified condition
1 - GroundConstantContinuity
7 - GroundConstantBattery positive voltage
If the circuit is not as specified, inspect the circuit connected to
other parts.
9. Connector connected:
INSPECT WIRELESS DOOR LOCK CONTROL RE-
CEIVER CIRCUIT
Connect the wire harness side connector to the receiver and in-
spect the wire harness side connector from the back side, as
shown.
Tester connectionConditionSpecified condition
3 - Ground
Ignition switch position OFF
Key removed
Transmitter OFF " ON
4.5 - 5.5 V " below 1 V
4 - Ground
Ignition switch position OFF
Key removed
Transmitter OFF
10 - 14 V
If circuit is as specified, replace the receiver.
If the circuit is not as specified, inspect the circuit connected to
other parts.

BE1DZ-02
I20800
Driver Side Junction Block

Door No.1 Fuse

Body ECU Engine Room Junction Block

Door No.2 Fuse
Front Door Lock Assembly
Rear Door Lock Assembly
Transmitter
Wireless Door Lock Control Receiver
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-89
1693 Author
: Date
:
2001 AVALON (RM808U)
WIRELESS DOOR LOCK CONTROL SYSTEM
LOCATION

BE217-01
BE-90
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1694 Author
: Date
:
2001 AVALON (RM808U)
PRE-CHECK
1. CHARACTERS OF WIRELESS DOOR LOCK
(a) The operation distance changes according to how cus-
tomers hold the transmitter or where it is used.
(b) Because of using the very weak radio wave, if there is a
strong wave or noise on the frequency being used, the op-
eration distance may become shorter.
2. WIRELESS DOOR LOCK BASIC FUNCTION
(a) Stand on the driver's side. Stay 1 m away from the ve-
hicle.
(b) Turn the transmitter toward the vehicle and press any one
of the transmission switched for 1 sec.

BE2M9-01
I06940
I06941
BE-96
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1700 Author
: Date
:
2001 AVALON (RM808U)
REPLACEMENT
1. REPLACE TRANSMITTER (LITHIUM) BATTERY
NOTICE:
Special caution should be taken for handling each compo-
nent as they are precision electronic components.
(a) Using a screwdriver, remove the cover.
NOTICE:
Do not pry out the cover forcibly.
HINT:
Push the cover with a finger as shown in the illustration, so that
there becomes clearance, then pry out the cover from that
clearance.
(b) Remove the transmitter.
(c) Remove the battery (lithium battery).
NOTICE:
Do not push the terminals with a finger.
If prying up the battery (lithium battery) forcibly to re-
move, the terminals are deformed.
(d) Install a battery (lithium battery) as shown in the illustra-
tion.
NOTICE:
Face the battery upward. Take care not to deform the termi-
nals.
(e) Assemble the transmitter to the key plate and the cover.

- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-97
1701 Author
: Date
:
2001 AVALON (RM808U)
2. REPLACE DOOR CONTROL RECEIVER AND TRANS-
MITTER
NOTICE:
When replacing the door control receiver and transmitter,
registration of recognition code is necessary because they
are provided as a single components.
(a) Select the operation mode to perform from the following
operation modes.
Add mode
Rewrite mode
Prohibition mode
Confirmation mode
HINT:
The add mode is used to retain codes already registered
while you register new recognition codes. This mode is
used when adding a transmitter. However, if the number
of registered codes exceeds 4 codes, previously regis-
tered codes are correspondingly erased in order, starting
from the first registered code.
The rewrite mode is used to erase all previously regis-
tered codes and register only new recognition codes.
The prohibition mode is used to erase all registered codes
and cancels the wireless door lock function. Use this
mode when the transmitter is lost.
The confirmation mode is for confirming few many recog-
nition codes ar already registered before you register
additional recognition codes.
(b) Follow the chart on the following page to register the
transmitter recognition code at the wireless door lock con-
trol receiver.
HINT:
When procedure is out of the specified, the operation re-
turns to normal operation.
Maximum 4 recognition codes can be registered.

BE-98
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1702 Author
: Date
:
2001 AVALON (RM808U)
Start registration of recognition code
The vehicle should be in the following conditions.

The key is not inserted in the ignition key cylinder.

Driver's door is OPEN. (Other doors are CLOSED)

Driver's door is UNLOCKED. (Other doors are CLOSED)
Insert the key into the ignition key cylinder, then pull it out.
Press the door lock control switch (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Close the driver's door, then open it.
Again press the door lock control switch (for manual operation) 5 times to
LOCK/UNLOCK at approx. 1 sec. interval.
1st time 2nd time 3rd time 4th time 5th time
LOCK
OFF
UNLOCK
Approx.
1 sec.Approx.
1 sec.
Insert the key into the ignition key cylinder.
Within
40 secs.
Within
40 secs.

- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE-99
1703 Author
: Date
:
2001 AVALON (RM808U)
Within
3 secs.
Turn the ignition switch from ON to LOCK at approx. 1 sec. interval 1 to 5 times to select the mode.
Pull out the key plate from the ignition key cylinder.
When add mode or rewrite mode
is selected.When confirmation
mode is selected.
ON
ONON
LOCK
LOCKLOCK
Approx.
1 sec.Approx.
1 sec. Approx. 1 sec.Approx.
1 sec.Approx.
1 sec.
Add mode
Rewrite modeConfirmation mode
ON - LOCK change occurs 1 time
ON - LOCK change occurs 2 timesON - LOCK change occurs 3 times
MPX body ECU automatically performs
the LOCK-UNLOCK operation once
or twice at 1 sec, interval to inform the
operator that either the add mode or
rewrite mode has been selected.
LOCK-UNLOCK occurs once
LOCK-UNLOCK occurs twice
Indicates that add mode has been selected.
Indicates that rewrite mode has been
selected.
1 sec.
LOCK
1 sec.1 sec.
LOCK
UNLOCK
UNLOCK
LOCK
2 secs.2 secs.
UNLOCK MPX body ECU automatically performs the
LOCK-UNLOCK operation 1 to 4 times at
2 sec. interval to inform the operator of
the number of the registered codes.
HINT:
When the number of the registered code
is 0, the operation is automatically
performed 5 times.
Example:
When the operation is performed twice, it
directs that 2 type of recognition code
have been registered.
1st time 2nd time
Registration of recognition code (Confirmation
mode and probation mode) is completed.
ON
LOCK
Approx.
1 sec.Approx.
1 sec.
Prohibition mode
ON - LOCK change occurs 5 times
When prohibition
mode is selected.

BE-100
- BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
1704 Author
: Date
:
2001 AVALON (RM808U)
MPX body performs operates LOCK-UNLOCK operation 5 times at a 1 sec.
interval to inform the operator that prohibition mode has been selected.
Press again either of switches on the transmitter.
MPX body ECU automatically performs LOCK-UNLOCK operation once or
twice at a 1 sec. interval to inform the operator that it has received the signal
from the transmitter.
LOCK-UNLOCK occurs once
LOCK-UNLOCK occurs twice Registration of recognition code is completed
Registration of recognition code has not been completed.

Recognition code received first time and second time did not match.
Proceed to continue registration
If even one of the following conditions is satisfied, registration of recognition
codes in completed.

40 secs. elapses since the MPX body ECU response.

The driver's door is closed.

The key plate is inserted in the ignition key cylinder.

4 types recognition codes are registration at one time.
Registration of recognition codes (add mode or rewrite mode) is completed.
Within
3 secs. Within
40 secs.
ON
LOCK
Approx.
1 sec.Approx.
1 sec.
When prohibition
mode is selected.
Press the lock and unlock switches on the transmitter simultaneously within 1.5 sec.
If they are not performed, the mode returns to the normal mode, then start with
ºStart registration of recognition codeº.
Proceed to finish registration
Within 40 secs.
Within 3 secs.