2001 TOYOTA SEQUOIA immobilizer

BE±12
± BODY ELECTRICALTROUBLESHOOTING
3416 Author: Date:
2005 SEQUOIA (RM1146U)
NAVIGATION SYSTEM
SymptomSuspect AreaSee page
Navigation system abnormal operation.See DIAGNOSIS SYSTEMDI±2172
REAR SEAT ENTERTAINMENT SYSTEM
SymptomSuspect AreaSee page
Rear seat entertainment system abnormal operation.See DIAGNOSIS SYSTEMDI±2083
REAR SEAT AUDIO SYSTEM
SymptomSuspect AreaSee page
Rear seat audio system abnormal operation.See DIAGNOSIS SYSTEMDI±2048
CLOCK SYSTEM
SymptomSuspect AreaSee page
Clock does not operate.TROUBLESHOOTING NO.1BE±127
Clock loses or gains time.TROUBLESHOOTING NO.2BE±127
GARAGE DOOR OPENER SYSTEM
SymptomSuspect AreaSee page
The equipment of which code has been registered does not oper-
ate.1. Garage Door Opener Switch
2. Wire Harness
3. *BE±134
±
±
LED does not come on. (Even though either switch is pressed.)1. Garage Door Opener Switch
2. Wire HarnessBE±134
±
LED does not come on. (Only one switch is pressed.)Garage Door Opener SwitchBE±134
* As the GARAGE DOOR OPENER on the vehicle side seems to be normal, check the OPENER on the
equipment side, of which code has been registered.
ENGINE IMMOBILISER SYSTEM
SymptomSuspect AreaSee page
Engine immobilizer system does not operate.See DIAGNOSIS SYSTEMBE±143
HORN SYSTEM
This system uses the multiplex communication system, so check diagnosis system of the multiplex commu-
nication system before you proceed with troubleshooting.
SymptomSuspect AreaSee page
Horn system does not operate.
1. HORN Fuse
2. HORN Relay Circuit
3. Horn Switch Circuit
4. Horn
5. Body ECUBE±14
BE±145
BE±145
BE±145
±
Horn blow all the time.
1. HORN Relay Circuit
2. Horn Switch Circuit
3. Body ECUBE±145
BE±145
±
One horn operates but the other horn does not operate.1. Horn
2. Wire HarnessBE±145
±

BE±84
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3488 Author: Date:
2005 SEQUOIA (RM1146U)
Indicator light output:
ConditionIndicator light
Disarmed stateOFF
Arming preparationON
Armed stateOFF
Alarm soundingON
HINT:
Even in the disarmed state, the indicator light blinks. (Due to the
signal output from the immobilizer system.) The indicator al-
ways blinks receiving the signal from the immobilizer system
any time in the armed state.
Blinking frequency:
0.2 seconds (ON)
1.8 seconds (OFF)

BE±88
± BODY ELECTRICALTHEFT DETERRENT SYSTEM
3492 Author: Date:
2005 SEQUOIA (RM1146U)
Indicator light output:
ConditionIndicator light
Disarmed stateOFF
Arming preparationON
Armed state
(Entry delay time)OFF
(ON)
Alarm soundingON
HINT:
Even in the disarmed state, the indicator light blinks. (Due to the
signal output from the immobilizer system). The indicator al-
ways blinks receiving the signal from the immobilizer system
any time in the arming condition.
Blinking frequency:
0.2 seconds (ON)
1.8 seconds (OFF)
(a) Transfer to active mode:
In each passive mode, when ºdisarmed state of active
mode " arming preparation transfer conditionº is met, the
active mode transfers to each condition. In this case, ac-
tive mode continues till it becomes disarmed state.
Passive mode when transfer condition is
met.Active mode transfer condition
Disarmed stateArming preparation condition
Arming preparation conditionArming preparation condition
Armed state
(During entry delay time)Arming condition
(After alarming time has elapsed, arming
condition)
Alarm soundingAfter alarming time has elapsed, arming
condition
(b) Answer back:
The buzzer and taillights respond as answer back under
the following conditions.
(1) When the system is set:
Arming preparation is set from disarmed state using
the wireless door lock, the buzzer and taillights.
(2) When the system is released:
Disarmed state is set from either arming prepara-
tion, armed state or alarm sounding using the wire-
less door lock, the buzzer and taillights.
4. PANIC ALARM CONTROL
(a) The panic alarm control makes it possible for you to volun-
tarily set off the panic alarm by pressing the PANIC switch
on the wireless transmitter. However, this control oper-
ates independently from the alarm control by the theft de-
terrent system (switched to the alarm sounding state from
the armed state).

1.8 Sec.
0.2 Sec.
0.25 Sec. 0.5 Sec.0.25 Sec.
1 Sec. Blinks
Code 2±1 Code 2±2
0.25 Sec.
0.25 Sec.0.5 Sec. 1 Sec. BE±138
± BODY ELECTRICALENGINE IMMOBILISER SYSTEM
3542 Author: Date:
2005 SEQUOIA (RM1146U)
HINT:

When a key cannot be inserted in the key cylinder in automatic registration mode, the security indicator
always comes on.

When the immobilizer system operates normally and the key is pull out, the security indicator blinks.

When key code registration could not be performed in automatic registration mode, code 2±1 is output
from the security indicator and when the registered key in inserted, code 2±2 is output.
(b) Automatic registration mode completion
If completing the mode forcibly when more than 1 key codes are registered in automatic registration
mode, perform the following procedures.
After 1 more key codes are registered with the master key, turn the ignition switch LOCK "ON 5 times
within 10 secs. by inserting the registered key or without pulling the key out.

05_SEQUOIA_U (L/O 0408)
11
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Automatic transmission indicator lights
Traction control system off indicator light
(two±wheel drive models)
Vehicle stability control system off indicator light
(four±wheel drive models) Slip indicator light
Headlight high beam indicator lightOverdrive±off indicator light
Turn signal indicator lights
Engine immobilizer/theft deterrent system
indicator light
Front passenger occupant classification
indicator light
Roll sensing of curtain shield airbags off
indicator light
Headlight low beam indicator light
Tail light indicator lightLow speed four±wheel drive indicator light*
2
High speed four±wheel drive indicator light*
2
Center differential lock indicator light*
2
(four±wheel drive models)

05_SEQUOIA_U (L/O 0408)
13
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Keys and Doors
Keys14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine immobilizer system16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless remote control18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side doors24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power windows28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power back window31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Back door34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hood36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft deterrent system36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel tank cap38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electric moon roof40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1± 2

05_SEQUOIA_U (L/O 0408)
14
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Your vehicle is supplied with the two
kinds of keys.
1. Master keys (black)ÐThese keys work
in every lock. Your Toyota dealer will
need one of them to make a new key
with a built±in transponder chip.
2. Sub key (gray)ÐThis key will not work
in the glove box.
A transponder chip for engine immobilizer
system has been placed in the head of
the master and sub keys. These chips are
needed to enable the system to function
correctly, so be careful not to lose these
keys. If you make your own duplicate key,
you will not be able to cancel the system
or start the engine.To protect items locked in the glove box
when using valet parking, leave the sub
key with the attendant.
Since the side doors can be locked with-
out a key, you should always carry a
spare key in case you accidentally lock
your keys inside the vehicle.NOTICE
When using a key containing a trans-
ponder chip, observe the following
precautions:

When starting the engine, do not
use the key with a key ring resting
on the key grip and do not press
the key ring against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts.
Keys

05_SEQUOIA_U (L/O 0408)
16
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend writing down the key num-
ber and storing it in a safe place.The engine immobilizer system is a
theft prevention system. When you in-
sert the key in the ignition switch, the
transponder chip in the key's head
transmits an electronic code to the ve-
hicle. The engine will start only when
the electronic code in the chip corre-
sponds to the registered ID code for
the vehicle.The system is automatically set when the
key is removed from the ignition switch.
The indicator light will start flashing to
show the system is set.
If any of the following indicator conditions
occurs, contact your Toyota dealer.

The indicator light stays on except
when the theft deterrent system is set-
ting or activating. (See ªTheft deterrent
systemº on page 36 in this Section.)

The indicator light does not start flash-
ing when the key is removed from the
ignition switch.

The indicator light flashes inconsistent-
ly.
Engine immobilizer system