2001 TOYOTA SEQUOIA lights

± BODY ELECTRICALTROUBLESHOOTING
BE±5
3409 Author: Date:
2005 SEQUOIA (RM1146U) Taillight does not go off when light control switch is in OFF posi-
tion.
1. TAILLIGHT Relay
2. Light Control Switch
3. Wire Harness
4. Body ECUBE±27
BE±27
±
±
Headlight does not come on when engine is running and light
control switch is in OFF position .
1. ECU±B Fuse
2. MAIN Fuse
3. HEAD Relay
4. DRL Fuse
5. DRL No. 4 Relay
6. DIMMER Relay
7. Parking Brake Switch
8. Wire Harness
9. Body ECUBE±14
BE±14
BE±27
BE±14
BE±27
BE±55
BE±55
±
±
FOG LIGHT 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
Fog light does not come on with light control switch is in HEAD
position.
(Headlight is normal.)
1. FOG Fuse
2. FOG LIGHT Relay
3. Fog Light Switch
4. Wire Harness
5. Body ECUBE±14
BE±27
BE±34
±
±
Fog light does not come on with light control switch is in HEAD
position.
(Headlight does not light).1.*1 Other Parts
2. Wire Harness±
±
Only one light does not come on.1. Bulb
2. Wire Harness±
±
*1: Inspect Headlight System
TURN SIGNAL AND HAZARD WARNING SYSTEM
SymptomSuspect AreaSee page
ºHazardº and ºTurnº do not light up.
1. GAUGE Fuse
2. TURN±HAZ Fuse
3. Ignition Switch
4. Turn Signal Flasher Relay
5. Wire HarnessBE±14
BE±14
BE±24
BE±24
±
Hazard warning light does not light up.
(Turn is normal)1. Hazard Warning Switch
2. Wire Harness
3. Turn Signal Flasher RelayBE±36
±
BE±36
Turn signal does not light up.
(Hazard is normal)1. Turn Signal Switch
2. Wire Harness
3. Turn Signal Flasher RelayBE±36
±
BE±36
Turn signal does not light up in one direction.1. Bulb
2. Wire Harness±
±
Only one bulb does not light up.1. Bulb
2. Wire Harness±
±
INTERIOR LIGHT 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
All the interior lights do not come on.
1. DOME Fuse
2. Illumination Circuit
3. Body ECUBE±14
DI±1759
±

I18559
1
2 34
5
I19450
I19451
BE±28
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
3432 Author: Date:
2005 SEQUOIA (RM1146U)
6. INSPECT DIMMER RELAY CONTINUITY (w/ Daytime
Running Light)
ConditionTester connectionSpecified condition
Constant1 ± 2, 3 ± 4Continuity
Apply B+ between
terminals 1 and 2.3 ± 5Continuity
If continuity is not as specified, replace the relay.
7. AUTO ON:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Turn the ignition switch ON.
(b) Turn the light control switch to AUTO.
(c) Gradually cover the top of the sensor.
(d) Check that the accessory lights and the headlights should
turn ON.
8. AUTO OFF:
INSPECT AUTOMATIC LIGHT CONTROL
(a) Gradually expose the sensor.
(b) Check that the headlights and the accessory lights should
turn OFF.
9. INSPECT LIGHTS±OFF CONDITION
(a) Turn the ignition switch ON.
(b) Lights auto ON:
Gradually cover the top of the sensor.
(c) Check that the lights go off under the following conditions.
(1) Light control switch is OFF.
(2) The area surrounding the sensor gets bright.
(3) After the ignition switch is turned OFF and after 30
sec. from when open doors are all closed.
10. INSPECT LIGHTS±ON CONDITION
(a) Open the driver's door while the ignition switch is OFF.
(b) Turn the light control switch to AUTO leaving the door
open and cover the top of the sensor. Make sure that the
lights go on when the ignition switch is turned ON.
11. ADJUST AUTOMATIC LIGHT CONTROL SENSOR
(See page DI±1684)

I18654
0.4 °
3 m (9.84 ft) H 20.9 mm
(0.823 in.)
7
V RH Line
90 °
V LH Line4V LH LineV Line V RH Line 65
6
V LH LineV Line
V RH Line 6
5
6
H4
O: step No.H4
20.9 mm
(0.823 in.) 1,348 mm (53.1 in.) Low Beam:
High Beam:29.7 mm
(1.17 in.)
20.9 mm
(0.823 in.)
1,348 mm (53.1 in.)
1,348 mm
(53.1 in.) High Beam
Low BeamH RH and
H LH
7
BE±32
± BODY ELECTRICALHEADLIGHT AND TAILLIGHT SYSTEM
3436 Author: Date:
2005 SEQUOIA (RM1146U)
2. ADJUST HEADLIGHT AIM ONLY
(a) Place the vehicle in the following conditions.

The area around the headlight is not deformed.

The vehicle is parked on a level surface.

Tire inflation pressure is the specified value.

A driver is in the driver's seat and the vehicle is in a state ready for driving (with a tank full).

The vehicle has been bounced several times.
(b) Check the headlight aiming.
(1) Prepare a thick white paper.
(2) Stand the paper perpendicular to the ground at the position 3 m (9.84 ft) away from the headlights
bulb center.
(3) Ensure that the center line of the vehicle and the paper face forms a 90±degree angle as shown
in the illustration.
(4) Draw a horizontal line (H line) on the paper, showing where the headlights should strike.
(5) Draw a vertical line (V line) at the position where the extended center line of the vehicle strikes.
(6) Draw 2 vertical lines (by connecting the low and high beam center marks) to where the both head-
lights should strike (V RH and V LH lines).
(7) Draw a horizontal line (by connecting the both low beam center marks) at the position where the
headlights should strike (H RH and H LH lines).
HINT:
The H RH and H LH line is 0.4° below the horizontal line (H line) of the light axis.
(8) Start the engine.
(9) Turn the headlights ON.
(10) Check that the headlights properly strike the position shown in the illustration.
(11) If not, adjust the lights in the vertical or horizontal direction.
HINT:
As shown in the illustration, adjust each aim of the RH and LH lights.
(c) When adjusting it in the vertical direction:
Using adjusting bolt, adjust the headlight aim to within the specified range.

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

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).

AB0158
SSTBattery
AB0152
SST
AB0158
SSTBattery
H01580
SST
± BODYSEAT BELT PRETENSIONER
BO±167
3720 Author: Date:
2005 SEQUOIA (RM1146U)
1. SEAT BELT PRETENSIONER ACTIVATION WHEN
SCRAPPING VEHICLE
HINT:
Have a battery ready as the power source to activate the seat
belt pretensioner.
(a) Check functioning of SST.
CAUTION:
When activating the seat belt pretensioner, always use the
specified SST: SRS Airbag Deployment Tool.
SST 09082±00700, 09082±00740
(1) Connect the SST to battery.
Connect the red clip of the SST to the battery posi-
tive (+) terminal and the black clip to the battery neg-
ative (±) terminal.
HINT:
Do not connect the yellow connector which will be connected
with the seat belt pretensioner.
(2) Check functioning of SST.
Press the SST activation switch, and check the LED
of the SST activation switch lights up.
CAUTION:
If the LED lights up when the activation switch is not being
pressed, SST malfunction is probable, so definitely do not
use the SST.
(b) Front seat outer belt on left side of 4±door vehicle:
Disconnect the pretensioner connector.
(1) Remove the front door scuff plate.
(2) Remove the back door scuff plate.
(3) Remove the rear quarter trim panel.
(4) Remove the quarter trim panel.

H18975
H18975
H02612
SST SST
R13455
10 m (33 ft) or more BO±168
± BODYSEAT BELT PRETENSIONER
3721 Author: Date:
2005 SEQUOIA (RM1146U)
(5) Disconnect the pretensioner connector as shown in
the illustration.
(6) Buckle the front seat belt and check that there is no
looseness and slack in the front seat inner belt and
front seat outer belt.
(c) Other front seat outer belts:
Disconnect the pretensioner connector.
(1) Remove the front door scuff plate.
(2) Remove the slide door scuff plate.
(3) Remove the center pillar lower garnish.
(4) Disconnect the pretensioner connector as shown in
the illustration.
(5) Buckle the front seat belt and check that there is no
looseness and slack in the front seat inner belt and
front seat outer belt.
(6) Connect the 2 SST each other, then connect them
to the seat belt pretensioner.
SST 09082±00700, 09082±00740
NOTICE:
To avoid damaging the SST connector and wire harness,
do not lock secondary lock of the twin lock.
(7) Move the SST to at least 10mm (33 ft) away from the
front of the vehicle.
(8) Close all the doors and windows of the vehicle.
NOTICE:
Take care not to damage the SST wire harness.
(9) Connect the SST red clip to the battery positive (+)
terminal and the black clip to the negative (±) termi-
nal.
(d) Activate seat belt pretensioner.
(1) Confirm that no one is inside the vehicle or within 10
m (33 ft) area around the vehicle.
(2) Press the SST activation switch and activate the
seat belt pretensioner.
HINT:
The seat belt pretensioner operates simultaneously as the LED
of the SST activation switch lights up.
(e) Dispose of the front seat outer belt (with seat belt preten-
sioner).