2001 TOYOTA SEQUOIA ECU

BE2ML±01
BE±82
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3486 Author: Date:
2005 SEQUOIA (RM1146U)
THEFT DETERRENT SYSTEM
ON±VEHICLE INSPECTION
1. OUTLINE OF THEFT DETERRENT SYSTEM
When the theft deterrent system detects any theft, it informs
people around by flashing lights and sound.
All initial settings are performed in active mode. It can be
switched to passive mode by using the hand±held tester. (See
step 3. CHANGING METHOD OF PASSIVE MODE.)
HINT:
There are 4 conditions in this system: disarmed state, arming
preparation, armed state and alarm sounding.
(1) Disarmed state
Alarm function does not operate.
Theft deterrent function is not performed.
(2) Arming preparation
Time until transferring to armed state.
Theft deterrent function is not performed.
(3) Armed state
Theft deterrent function is ready.
(4) Alarm sounding:
When the system detects a theft, it informs people
around the vehicle using light and sound.
Refer to the table below for alarming method or
time.
Horn
Security horn
Alarm methodHeadlightAlarm method
Taillight
Interior light
Alarm time60 seconds
Alarm outputContinuous 0.4 secs. (ON)
0.4 secs. (OFF)
HINT:
Alarm output for the hazard is the same as the one for the haz-
ard on the vehicle.
If any of the doors is unlocked not by the key or wireless remote
control in the armed state, a force lock signal will be output.

Disarmed state
Perform any of the following and the system will go on to ºArming preparationº:

With all the doors, the engine hood and the back door closed, lock all doors with the key.

With all the doors, the engine hood and the back door closed, lock all doors by the
wireless remote control.

With all the doors, engine hood and back door locked, open and close any of the doors, the
engine hood or the back door, then close and lock all doors, the engine hood and the back door.
Arming preparation
Perform the following and the system will
go on to ºArmed stateº:

Let 30 seconds elapse with all the doors,
engine hood and the back door closed and
locked.
Perform any of the following and the system
will return to ºDisarmed stateº:

Open any of the doors, the engine hood or
the back door .

Unlock any of the doors or the back door.

Put the key in the key cylinder.

Reconnect the battery.
Armed state
Perform any of the following and the system
will return to ºDisarmed stateº:

Unlock any of the doors or the back door by
the wireless remote control.

Unlock any of the doors or the back door with
the key.

Put the key in the key cylinder and turn it ON.
Perform any of the following and the system
will go on to ºAlarm soundingº:

Open any of the doors or the back door.

Unlock any of the doors or the back door in
any way other than with a key or by the wireless
remote control.

Open the engine hood.

Reconnect the battery.

When input from the optional glass break sensor
is detected (Dealer option).(Key not inserted in key cylinder.)
Alarm sounding
The vehicle's horn and security horn will sound,
and the hazard, interior, tail and head lights come
on for 60 seconds.
After the alarm has stopped, the system will
return to ºArmed stateº. Perform any of the following and the system
will return to ºDisarmed stateº:

Unlock any of the doors and the back door by
the wireless remote control.

Unlock any of the doors or the back door with
the key.

Put the key in the key cylinder and turn it ON.
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
BE±83
3487 Author: Date:
2005 SEQUOIA (RM1146U)
2. ACTIVE ARMING MODE

BE0CE±10
I28416
Theft Deterrent Horn
Engine Hood Courtesy Switch Engine Room J/B
Door Lock Assembly

Door Lock Motor

Door Unlock Detection Switch
Ignition Switch

Key Unlock Warning Switch
Instrument Panel J/B
Door Courtesy Light Switch
Horn
Back Door Lock Motor
Door Key Lock
and Unlock
Switch
Door Key Lock and
Unlock Switch Headlight
Doom Light
Taillight
Body ECU
(Located behind the Instrument Panel)
Engine Room R/B No. 2
Glass Breakage Sensor ECU
Glass Breakage
Sensor Microphone
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
BE±91
3495 Author: Date:
2005 SEQUOIA (RM1146U)
LOCATION

BE2MK±01
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±93
3497 Author: Date:
2005 SEQUOIA (RM1146U)
WIRELESS DOOR LOCK CONTROL SYSTEM
ON±VEHICLE INSPECTION
Make the vehicle in the initialized condition:
The initialized condition is the condition when the following conditions are satisfied.
(1) Key plate has not been inserted in the ignition key cylinder.
(2) All the doors are closed. (Door warning light is OFF.)
(3) All the doors are locked.
Under the standard operation, when repeating UNLOCK and LOCK switch 3 times or more alternately, check the
UNLOCK±LOCK operation from 3rd time onward.

Following procedures are standard operation.
(1) Keep about 1 M away to the right direction from the outside handle of a driver's seat.
(2) Face the transmitter toward the vehicle and press one of transmitter switches for about 1 sec.


As of the security function, even the wireless function is normal, there may be the case that only UNLOCK opera-
tion will not work.

As of the body customize function, if ºoperation twiceº has been set using hand±held tester, only driver's seat
is unlocked by unlock operation performed once.
Normal


Operative distance may differ according to
an operator, the way of holding the transmitter
or position.

Because weak electric wave is used, when
there is strong wave or noise in the used
frequency, operation distance might be
shortened.
No Yes
Only wireless function (Remote control) will not operate.
(If a new transmitter or a transmitter of the same type that works properly with the vehicle is not available.)
Basic function check:

± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±95
3499 Author: Date:
2005 SEQUOIA (RM1146U)
No
No
(Not entered in self
diagnostic mode)Is the method to enter into the
diagnostic mode correct?
Self diagnostic mode operation check:
Ye s
(Entered in self diagnostic mode)
After the self±diagnostic mode input operation has
been performed, check that the buzzer chirps.
ON
OFF BuzzerIgnition switch OFF
0.13 sec. 0.5 sec.
Is the chirping function of operation
confirmation buzzer normal?
Check door control buzzer.
Check that continuity exists between
connector terminal A3 of MPX body ECU
on the vehicle side and ground by
inserting the key plate into the ignition
key cylinder. Key unlock warning switch inspection:
Ye s Ye s
No
Check key unlock warning switch.
Self diagnostic mode check:
Check that how the buzzer chirps when pressing
each transmitter switch.
ON
OFF Buzzer
0.13 sec.0.5 sec.
(1) Receiver normal wave of LOCK switch.
ON
OFF Buzzer
0.13 sec.
0.25 sec.
(2) Receiver normal wave of UNLOCK switch.
0.5 sec.
ON
OFF Buzzer
(3) Receiver normal wave of luggage door switch.
0.5 sec.0.5 sec.
ON
OFF (4) Incompatibility of the recognition code or out
from synchronization of rolling code.
While receiving
:
While turning the ignition switch ON in the self±
diagnostic mode, the mode returns to normal mode. Buzzer
(1), (2) or (3) are output.(4) is output.
(All buzzer's response
is same.)
Recognition code registration function check:
Check that it is possible to enter into
rewrite mode or add mode.
(Refer to ºWireless door lock receiver and
transmitterº ± ºRecognition code registrationº.)
Wireless door lock operates
normally when recognition code
is registered.
No response from buzzer

BE±96
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3500 Author: Date:
2005 SEQUOIA (RM1146U)
Transmitter faulty or wireless door lock receiver
faulty.

Check the wave reaching range with another
transmitter (normal). When the range is normal,
transmitter defection is detected, the range is
not normal, wireless door lock receiver defection
is detected.
The wave reaching range check:
Is the wave reaching range normal?
(1 M area around vehicle)
(While the transmitting switch is pressed,
(approx. 20 secs.) the buzzer chirps continuously.
After 20 secs., repress the switch again.)
NoOther body control system faulty.
(Transmitter and receiver are normal.)
Ye s
No
Wireless door control receiver check:
Check the diagnosis. (wireless door lock signal error)
(Refer to ºMultiplex communication systemº)
Check that diagnostic code B1242 is output
(see page xx±xxx).Wire harness faulty (short circuit)
Between the receiver terminal 2 (RDA) and
body ECU terminal B5±4 (RDA).
Between the receiver terminal 3 (PRG) and
body ECU terminal B5±5 (PRG).Ye s
No
When pressing each switch of
the new or normal transmitter
used in the same type vehicle,
check that all buzzers chirp
in the same way.
Transmitter faulty.
Ye s
DOME fuse or wire harness faulty.
Ye s
+B power source check:
Check that there is constantly 10 to 14 V voltage at the
connector terminal 5 (+B) of wireless door control
receiver.
No

BE±106
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3510 Author: Date:
2005 SEQUOIA (RM1146U)
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
OFF
OFFOFF
Approx.
1 sec.Approx.
1 sec. Approx. 1 sec.Approx.
1 sec.Approx.
1 sec.
Add mode
Rewrite modeConfirmation mode
ON ± OFF change occurs 1 time
ON ± OFF change occurs 2 timesON ± OFF 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 types of recognition code
have been registered.
1st time 2nd time
Registration of recognition code (Confirmation
mode and prohibition mode) is completed.
ON
OFF
Approx.
1 sec.Approx.
1 sec.
Prohibition mode
ON ± OFF change occurs 5 times
When prohibition
mode is selected.
Within
40secs.

± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±107
3511 Author: Date:
2005 SEQUOIA (RM1146U)
MPX body performs LOCK±UNLOCK operation 5 times at a 1 sec.
interval to inform the operator that prohibition mode has been selected.
Press again any switches on the transmitter for more than 1 sec.
MPX body ECU automatically performs LOCK±UNLOCK operation once or
twice at a 1 sec. interval to inform the operator that the receiver 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 is completed.

40 secs. elapse since the MPX body ECU response.

The driver's door is closed.

The key plate is inserted in the ignition key cylinder.

4 types of recognition codes are registration at one time.
Registration of recognition codes (add mode or rewrite mode) is completed.
Within
3 secs. Within
40 secs.
UNLOCK
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 LOCK±UNLOCK operation can not be performed at all, 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.LOCK