2001 TOYOTA SEQUOIA bulb

± BODY ELECTRICALTROUBLESHOOTING
BE±3
3407 Author: Date:
2005 SEQUOIA (RM1146U) ºHI±Beamº does not light (All).
1. HEAD Relay
2. Headlight Dimmer Switch
3. Wire Harness
4. Body ECUBE±27
BE±27
±
±
ºHI±Beamº does not light (One side).
1. Bulb
2. H±LP LH Fuse
3. H±LP RH Fuse
4. Wire Harness±
BE±14
BE±14
±
ºFlashº does not light.
1. H±LP LH Fuse
2. H±LP RH Fuse
3. Bulb
4. Headlight Dimmer Switch
5. Wire Harness
6. Body ECUBE±14
BE±14
±
BE±27
±
±
Headlight does not come on.
1. Bulb
2. HEAD Relay
3. Light Control Switch
4. Wire Harness
5. Body ECU±
BE±27
DI±1750
±
±
Headlight flickers.
1. Bulb
2. Wire Harness
3. Body ECU±
±
±
Headlight is dark.
1. Bulb
2. Body ECU
3. Wire Harness±
±
±
Only one taillight comes on.1. Bulb
2. Wire Harness±
±
Taillight does not come on.
(Headlight is normal)
1. TAIL Fuse
2. TAILLIGHT Relay
3. Light Control Switch
4. Wire Harness
5. Body ECUBE±14
BE±27
BE±27
±
±
Taillight does not come on.
(Headlight does not come on)
1. TAIL Fuse
2. TAILLIGHT Relay
3. Light Control Switch
4. Wire Harness
5. Body ECUBE±14
BE±27
BE±27
±
±
Rear combination light does not come on.
1. Bulb
2. TAIL Fuse
3. TAILLIGHT Relay
4. Wire Harness
5. Body ECU±
BE±14
BE±27
±
±
w/ Daytime Running Light:
HEADLIGHT AND TAILLIGHT 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
Only one headlight comes on.1. Bulb
2. Wire Harness±
±

BE±4
± BODY ELECTRICALTROUBLESHOOTING
3408 Author: Date:
2005 SEQUOIA (RM1146U) ºLO±Beamº does not light (All).
1. HEAD Relay
2. DRL Fuse
3. DIMMER Relay
4. DRL No. 4 Relay
5. Wire Harness
6. Body ECUBE±27
BE±14
BE±27
BE±27
±
±
ºLO±Beamº does not light (One side).
1. Bulb
2. H±LP LL Fuse
3. H±LP LP Fuse
4. Wire Harness±
BE±14
BE±14
±
ºHI±Beamº does not light (All).
1. HEAD Relay
2. Headlight Dimmer Switch
3. DRL Fuse
4. DIMMER Relay
5. DRL No. 4 Relay
6. Wire Harness
7. Body ECUBE±27
BE±27
BE±14
BE±27
BE±27
±
±
ºHI±Beamº does not light (One side).
1. Bulb
2. H±LP LL Fuse
3. H±LP LP Fuse
4. Wire Harness±
BE±14
BE±14
±
ºFlashº does not light.
1. Headlight Dimmer Switch
2. Wire Harness
3. Body ECUBE±27
±
±
Headlight does not come on.
1. Bulb
2. HEAD Relay
3. DIMMER Relay
4. DRL No. 4 Relay
5. Headlight Dimmer Switch
6. Light Control Switch
7. Wire Harness
8. Body ECU±
BE±27
BE±27
BE±27
BE±27
BE±27
±
±
Headlight does not go off when light control switch is in OFF posi-
tion.
1. Power Source Circuit (Body ECU)
2. HEAD Relay
3. DIMMER Relay
4. Light Control Switch
5. Wire Harness
6. Body ECUDI±1700
BE±27
BE±27
BE±27
±
±
Headlight flickers.
1. Bulb
2. Wire Harness
3. Body ECU±
±
±
Headlight is dark.
1. Bulb
2. Wire Harness
3. Body ECU±
±
±
Taillight does not come on when light control switch is in TAIL
position.
1. TAIL Fuse
2. TAILLIGHT Relay
3. Light Control Switch
4. Wire Harness
5. Body ECUBE±14
BE±27
BE±27
±
±

± 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
±

BE±6
± BODY ELECTRICALTROUBLESHOOTING
3410 Author: Date:
2005 SEQUOIA (RM1146U) The interior light does not come on when the driver's door is
opened.
1. Driver's Door Courtesy Light Switch
2. Wire Harness
3. Body ECUBE±40
±
±
The light does not come on when the passenger's door is opened.
1. Passenger's Door Courtesy Light Switch
2. Wire Harness
3. Body ECUBE±40
±
±
The light does not come on when the rear±right door is opened.
1. Rear±Right Door Courtesy Light Switch
2. Wire Harness
3. Body ECUBE±40
±
±
The light does not come on when the rear±left door is opened.
1. Rear±Left Door Courtesy Light Switch
2. Wire Harness
3. Body ECUBE±40
±
±
Only one of the bulbs comes on.Bulb±
The illumination does not fade out when all the doors are closed.1. Courtesy Light Switch
2. Body ECUBE±40
±
The illumination does not fade out immediately when all the doors
are locked within 15 seconds after they are closed.1. Door Unlock Detection Switch
2. Body ECUBE±79
±
Front personal light does not come on.
1. Bulb
2. Front Personal Light
3. Wire Harness±
BE±40
±
Room light does not come on.
1. Bulb
2. Room Light
3. Wire Harness±
BE±40
±
Vanity light does not come on.
1. Bulb
2. Vanity Light
3. Wire Harness±
BE±40
±
Luggage Room light does not come on.
1. Bulb
2. Back Door Courtesy Light Switch
3. Body ECU±
BE±40
±
Courtesy light does not come on.
1. Bulb
2. Door Courtesy Light Switch
3. Body ECU±
BE±40
±
Does not operate the illuminated entry1. Illumination Circuit
2. Body ECUDI±1759
±
All functions of the body control system do not operate.1. Power Source Circuit
2. Body ECUDI±1700
±
BACK±UP LIGHT SYSTEM
SymptomSuspect AreaSee page
Back±Up Light does not come on.
1. Bulb
2. GAUGE Fuse
3. BACK±UP LIGHT Relay
4. Instrument Panel J/B (IPO) Circuit
5. Ignition Switch
6. Wire Harness±
BE±14
BE±45
BE±20
BE±24
±
Back±Up Light always remains on.
1. Park/Neutral Position Switch
2. BACK±UP LIGHT Relay
3. Wire HarnessDI±576
BE±45
±
Only one light does not come on.1. Bulb
2. Wire Harness±
±

± BODY ELECTRICALTROUBLESHOOTING
BE±7
3411 Author: Date:
2005 SEQUOIA (RM1146U)
STOP LIGHT SYSTEM
SymptomSuspect AreaSee page
Stop light does not come on.
1. STOP Fuse
2. Stop Light Switch
3. Wire HarnessBE±14
BE±47
±
Stop light always come on.1. Stop Light Switch
2. Wire HarnessBE±47
±
Only one light does not come on.1. Bulb
2. Wire Harness±
±
WIPER AND WASHER SYSTEM
SymptomSuspect AreaSee page
Wipers and washer do not operate.
1. AM1 Fuse
2. Wiper Switch
3. Wire HarnessBE±14
BE±49
±
Wipers do not operate.
1. WIP Fuse
2. Wiper Switch
3. Wiper Motor
4. Wire HarnessBE±14
BE±49
BE±49
±
Washer motor does not operate.
1. WSH Fuse
2. Washer Switch
3. Washer Motor
4. Wire HarnessBE±14
BE±49
BE±49
±
Wipers do not operate when washer switch ON.
1. WSH Fuse
2. Washer Switch
3. Wiper Motor
4. Wire HarnessBE±14
BE±49
BE±49
±
Washer fluid is not injected.Washer Hose and Nozzle±

When wiper switch is in HI position, the wiper blade is in contact
with the body.

When the wiper switch is OFF, the wiper blade does not retract
or the retract position is wrong.
1. Wiper Motor *1
2. Wire harness *1BE±49
±
*1: Inspect wiper arm and blade set positions.
REAR WIPER AND WASHER 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
Rear Wiper does not operate.
1. Rear Wiper and Washer Switch
2. Rear Wiper Motor
3. Back Door ECU
4. Body ECUBE±49
BE±49
±
±
Rear Washer does not operate.
1. Rear Wiper and Washer Switch
2. Rear Washer Motor
3. Back Door ECU
4. Body ECUBE±49
BE±49
±
±
COMBINATION METER
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
Combination meter system abnormal operation.See DIAGNOSIS SYSTEMDI±1610

± BODY ELECTRICALTROUBLESHOOTING
BE±9
3413 Author: Date:
2005 SEQUOIA (RM1146U)
POWER DOOR LOCK CONTROL 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 doors cannot be locked or unlocked.
(Power window control system is normal.)1. Door Unlock Detection Switch
2. Door Key Lock and Unlock Switch
3. Driver Door ECUBE±79
BE±79
±
Only one back lock control does not operate.
1. Back Door Lock Motor
2. Back Door Unlock Detection Switch
3. Back Door Key Lock and Unlock Switch
4. Back Door ECUBE±79
BE±79
BE±79
±
Driver door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Driver Door ECUBE±79
±
Front passenger door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Passenger Door ECUBE±79
±
Back door key related function does not operate.1. Door Key Lock and Unlock Switch
2. Back Door ECUBE±79
±
THEFT DETERRENT 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
The theft deterrent system cannot be set.
1. Key Unlock Warning Switch Circuit
2. Door Unlock Detection Switch Circuit (Driver Door ECU)
Door Unlock Detection Switch Circuit (Passenger Door
ECU)
Door Unlock Detection Switch Circuit (Back Door ECU)
Door Unlock Detection Switch Circuit (Body ECU)
3. Engine Hood Courtesy Switch Circuit
4. Back Door Courtesy Light Switch
5. Courtesy Light Switch Circuit
6. Glass Breakage Sensor Circuit (*1)
7. Body ECUDI±1715
DI±1791
DI±1829
DI±1869
DI±1723
DI±1725
DI±1864
DI±1728
DI±1774
±
The system cannot be canceled when the ignition switch is turned
ON with a key.
1. AM1 Fuse
2. AM2 Fuse
3. Key Unlock Warning Switch Circuit
4. Ignition Switch
5. Body ECUBE±14
BE±14
DI±1715
BE±24
±
The system cannot be canceled when the back door is unlocked
with a key.
1. Back Door Unlock Detection Switch Circuit
2. Back Door Key Lock and Unlock Switch Circuit
3. Back door ECU
4. Body ECUDI±1869
DI±1882
±
±
The system does not operate when the engine hood is opened.1. Engine Hood Courtesy Switch Circuit
2. Body ECUDI±1725
±
Some of the system does not operate.
(Headlight does not come on.)
1. Bulb
2. HEAD Relay
3. DIMMER Relay
4. DRL No. 4 Relay
5. Headlight Dimmer Switch
6. Light Control Switch
7. Wire Harness
8. Body ECU±
BE±27
BE±27
BE±27
BE±27
BE±27
±
±

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.

BE2MS±01
I18639
39
13
Front Personal Light Switch
I18755
1 3
Front Personal
Light Switch
I18563
31
Rear Interior Light Switch
I18564
2
3
I28729
31
BE±40
± BODY ELECTRICALINTERIOR LIGHT SYSTEM
3444 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. w/o Sliding Roof:
INSPECT FRONT PERSONAL LIGHT SWITCH CONTI-
NUITY
(a) Disconnect the connector from the personal light.
(b) Push the personal light switch ON, check that continuity
exists between terminal 9 and terminal 13.
If continuity is not as specified, replace the light assembly or
bulb.
2. w/ Sliding Roof:
INSPECT FRONT PERSONAL LIGHT SWITCH CONTI-
NUITY
(a) Disconnect the connector from the personal light.
(b) Push the personal light switch ON, check that continuity
exists between terminal 1 and terminal 3.
If continuity is not as specified, replace the light assembly or
bulb.
3. w/o RSE or RSA:
INSPECT REAR INTERIOR LIGHT SWITCH CONTINU-
ITY
(a) Disconnect the connector from the doom light.
(b) Push the rear interior light switch ON, check that continu-
ity exists between terminal 1 and terminal 3.
If continuity is not as specified, replace the light assembly or
bulb.
(c) Turn the light switch to DOOR, check that continuity exists
between terminals 2 and 3.
If continuity is not as specified, replace the light assembly or
bulb.
4. w/ RSE or RSA:
INSPECT REAR INTERIOR LIGHT SWITCH CONTINU-
ITY
(a) Disconnect the connector from the rear interior light.
(b) Push the rear interior light switch ON, check that continu-
ity exists between terminal 1 and terminal 3.
If continuity is not as specified, replace the light assembly or
bulb.