TOYOTA SEQUOIA 2001 Service Repair Manual

± BODY ELECTRICALTHEFT DETERRENT SYSTEM
BE±89
3493 Author: Date:
2005 SEQUOIA (RM1146U)
(1) Conditions that cause the panic alarm control to set
off the panic alarm:
The panic alarm control sets off the panic alarm by
pressing the PANIC switch on the wireless transmit-
ter under the following conditions.
The ignition switch is OFF.
The theft deterrent system is not in the alarm
sounding state (common to active arming
mode and passive arming mode).
The panic alarm control is not operating (the
alarm is not set off).
(2) Conditions that cause the panic alarm control to
shut off the alarm:
The panic alarm control shuts off the panic alarm
when any of the following conditions is met during
panic alarm operation.
The ignition switch is turned ON.
Any of the switches on the wireless transmit-
ter (PANIC/LOCK/UNLOCK) is pressed.
The panic alarm ends (60 seconds have
passed).
The theft deterrent system switches to the
alarm sounding state (common to active arm-
ing mode and passive arming mode). Condi-
tions for canceling the panic alarm are the
same as for the alarm control.
HINT:
Active arming mode: See step 2
Passive arming mode: See step 3
5. Using hand±held tester:
CHANGING METHOD OF PASSIVE MODE (ON or OFF)
(See page DI±1684)
6. SWITCH TO THE ACTIVE ARMING MODE
HINT:
In each state of the passive arming mode, when the switch
condition transferring to active arming mode (disarmed state of
active arming mode " arming preparation state of active arm-
ing mode) is satisfied, the system will switch to each state of the
active arming mode. In this case, the active arming mode will
continue until the system switches to the disarmed state.
State of Passive Arming Mode Before
SwitchingState of Active Arming Mode After
Switching
Disarmed stateArming preparation state
Arming preparation stateArming preparation state (continues for
30 seconds)
Armed state (except during entry delay
time)Armed state

I28725
Glass Breakage Sensor:
Volume
BE±90
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3494 Author: Date:
2005 SEQUOIA (RM1146U)Armed state (during entry delay time)
After alarming time has elapsed, the sys-
tem will switch to the armed state
Alarm sounding stateAfter alarming time has elapsed, the sys-
tem will switch to the armed state
7. OPERATE GLASS BREAKAGE SENSOR
HINT:
The glass breakage sensor functions only during the active
arming mode.
(a) If the glass breakage sensor detects that the glass is bro-
ken (1st time), the sensor will set off an alarm for 20 se-
conds (pre±alarm). If the glass breakage sensor detects
that the glass is broken furthermore (at 2nd time), the sen-
sor will set off an alarm for 60 seconds.
HINT:
If the 2nd detection is performed during the pre±alarming time
(20 seconds), the sensor will continuously set off the 2nd alarm.
At this time, the total alarming time of the 1st alarm (pre±alarm)
and 2nd alarm is 60 seconds.
(b) The sensitivity of the glass breakage sensor can be ad-
justed by the volume switch in the glass breakage sensor.
HINT:
Because the glass breakage sensor has a high sensitivity, it
might set off a wrong alarm if the volume switch is adjusted too
high.

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

I04146
BE1W8±05
I04148
ON OFF BE±92
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3496 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT THEFT DETERRENT HORN OPERATION
Connect the positive (+) lead from the battery to terminal 1 and
negative (±) lead to the theft deterrent horn body, and check
that the theft deterrent horn blows.
If operation is not as specified, replace the horn.
2. INSPECT ENGINE HOOD COURTESY SWITCH CON-
TINUITY
Switch positionTester connectionSpecified condition
CLOSE (OFF)±No continuity
OPEN (ON)1 ± 2Continuity
If continuity is not as specified, replace the switch.
3. INSPECT ENGINE HOOD COURTESY SWITCH CIR-
CUIT (See page DI±1725)

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.
<Reference>

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
<Reference>

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:

BE±94
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3498 Author: Date:
2005 SEQUOIA (RM1146U)
Replace the transmitter battery with a new or normal
one and check UNLOCK±LOCK function works under
the standard operation.
<Reference>

The battery should be replaced by only the shops with
sufficient skill as new or normal battery is necessary.

Battery quality can be judged by checking the rem-
nant volume of the battery.
Ye s
Battery faulty.
No
Make the vehicle be in the initialized condition.
Enter into the self diagnostic mode.
If operating door control receiver in the order of 1 through 2, the mode turns to diagnostic mode.
(1) Insert the key plate in the ignition key cylinder and pull out, then insert it again and turn ignition switch
OFF " ON " OFF once within 5 seconds after pulling out.
(2) After completing the procedure within 30 seconds, turn the ignition switch OFF " ON " OFF 9 times.
HINT:
In the case that either (1) or (2) condition is not satisfied, transfer to normal mode.
<Reference>
When completing self±diagnostic mode, turn the ignition switch ON.
LOCK and UNLOCK operation and output of luggage door opener signal are not performed under the self
diagnostic mode.
1st time9th times ON
OFF
Transmitter battery check:
Inspection start by using self diagnostic mode:
within.
30 sec.within.
5 sec.
12 910
Key plate
not inserted
Key plate
inserted
Ignition
switch

± 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
<Reference>:
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.
<Reference>
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

± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
BE±97
3501 Author: Date:
2005 SEQUOIA (RM1146U)
Wire harness faulty.
Body ground open and contact error.
Ye s
Body ground check:
Check that continuity exists between the connector
terminal 1 (GND) of the wireless door control receiver
and body ground.
No
Wireless door control receiver faulty.

BE0GM±16
I28417
Transmitter
Door Lock Assembly Ignition Switch
Door Lock Assembly
Wireless Door Lock
Control Receiver
(Located behind the heater control panel)
BE±98
± BODY ELECTRICALWIRELESS DOOR LOCK CONTROL SYSTEM
3502 Author: Date:
2005 SEQUOIA (RM1146U)
LOCATION