H24658
Ignition SwitchON
OFF
RSCA OFF SwitchOFF
ON
RSCA OFF IndicatorON
OFFApprox.
3 secondsApprox.
2 secondsApprox.
2 seconds
Bulb Check
(SW input signal prohibited)
Approx.
0.2 secondsApprox.
0.2 seconds
H23823
DI±1142
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1336 Author: Date:
2005 SEQUOIA (RM1146U)
5. FUNCTION RSCA OFF INDICATOR
(a) The RSCA OFF indicator comes on for approximately 3 seconds after the ignition switch is turned ON,
then goes off.
(b) Approximately 3 seconds after the turning the ignition switch ON, the RSCA OFF indicator comes on
or goes off every time it detects OFF (press the switch for approximately 0.2 seconds) or ON (press
the switch for approximately 2 seconds).
HINT:
The RSCA OFF switch is reset by turning the ignition switch to the LOCK position.
As a result, the RSCA OFF switch and RSCA OFF indicator are off when the ignition switch is turned to the
ON position.
6. CHECK SRS WARNING LIGHT
(a) Turn the ignition switch to the ON position, and check that
the SRS warning light comes on for approximately 6 se-
conds (primary check).
(b) Check that the SRS warning light goes off approximately
6 seconds after the ignition switch is turned to the ON
position (constant check).
HINT:
When any of the following symptoms occur, refer to the ºProb-
lem Symptoms Tableº (see page DI±1132).
The ignition switch is turned from the LOCK to ON posi-
tion, but the SRS warning light does not come on.
The SRS warning light comes on occasionally after the
primary check period has elapsed.
The SRS warning light comes on, but DTC is not output.
DID8Q±01
DI±1608
± DIAGNOSTICSCOMBINATION METER SYSTEM
1802 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. METER GAUGE AND WARNING/INDICATOR
GAUGE:
ItemDetail
SpeedometerVehicle speed sensor (Direct line).
TachometerECM transmits engine speed to the meter to display.
ODO/TRIP MeterCombination meter assy.
FuelDisplays a fuel level according to a signal from the fuel sender gauge (Direct line).
Water TemperatureDisplays engine coolant temperature according to a signal from the ECM (BEAN).
Oil PressureReceives a signal from the oil pressure sender (Direct line).
Volt MeterDisplays vehicle voltage according to a voltage from the IG terminal (Direct line).
WARNING/INDICATOR:
HINT:
Combination meter bulb check is performed for 3 seconds after the ignition switch is turned ON.
ItemDetailList of indicators available for
bulb check
O/D OFFReceives a signal from the ECM (Direct line)±
TURNTurns signal switch ON (Direct line)±
BEAMReceives a signal from the body ECU (*1), Displays a signal received from the
dimmer switch (*2) (Direct line)±
SECURITYReceives a set signal from the transponder key ECU and body ECU (Direct line)±
CHARGEReceives a malfunction signal from the alternator (Direct line)
AIR BAGReceives a malfunction signal from the airbag sensor center (Direct line)
D SEAT BELTReceives the driver seat belt signal (Unfastened) from the seat belt inner front LH
(Direct line)±
DOOROpen door indicator comes on when a signal is received from the ECU (BEAN)
from each door±
A/T OIL TEMP.Warning is displayed when the oil temperature is high (Direct line)
BRAKEComes on when the parking brake switch is on or the brake fluid level warning
switch is on (Direct line)
MIL (CHECK ENGINE)Receives a malfunction signal from the ECM (Direct line)
FUEL WARNINGReceives the fuel empty signal from the fuel sender gauge (Direct line)±
ABSReceives a malfunction signal from the skid control ECU (Direct line)
WASHERWarning is displayed when the washer level is low (Direct line)±
CRUISEReceives a CRUISE on signal or malfunction signal from the ECM (Direct line)±
VSC TRACReceives a malfunction signal from the skid control ECU (Direct line)
VSC (TRAC) OFFReceives a malfunction signal from the translate ECU (Direct line)
SLIPReceives a malfunction signal from the translate ECU (Direct line)
4HIReceives a 4HI signal from the 4WD control ECU (Direct line)±
CTR DIF LOCKReceives a DIF LOCK signal from the 4WD control ECU (Direct line)±
A/T PReceives a P signal from the park/neutral position switch (Direct line)±
A/T NReceives an N signal from the park/neutral position switch (Direct line)±
A/T DReceives a D signal from the park/neutral position switch (Direct line)±
A/T 3Receives a 3 signal from the park/neutral position switch (Direct line)±
A/T 2Receives a 2 signal from the park/neutral position switch (Direct line)±
A/T LReceives an L signal from the park/neutral position switch (Direct line)±
± 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
±
05_SEQUOIA_U (L/O 0408)
146
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
TURN SIGNALS
To signal a turn, push the headlight/
turn signal lever up or down to position
1.
The key must be in the ªONº position.
The lever automatically returns after you
make a turn, but you may have to return
it by hand after you change lanes.
To signal a lane change, move the lever
up or down to the pressure point (position
2) and hold it.
If the turn signal indicator lights (green
lights) on the instrument panel flash faster
than normal, a front or rear turn signal
bulb is burned out.HEADLIGHTS
To turn on the following lights: Twist
the headlight/turn signal lever knob.
Position 1ÐParking, tail, license plate,
side marker and instrument panel lights
Position 2ÐHeadlights and all of the
aboveThe lights automatically turn off after 30
seconds when all the side doors and back
door are closed with the ignition key in
the ªACCº or ªLOCKº position and the le-
ver at position 2.
The lights also automatically turn off when
the driver 's door is opened with the lever
at position 1.
If the doors are locked by the wireless
remote control transmitter, the lights auto-
matically turn off immediately.
To turn them on again, turn the key to the
ªONº position or actuate the headlight
switch.
If you are going to park for over one
week, make sure the headlight switch is
off.
The timing for the headlights turning off
can be changed. For details, contact your
Toyota dealer.
NOTICE
To prevent the battery from being dis-
charged, do not leave the lights on
for a long period when the engine is
not running.
Headlights and turn signals
(without automatic light
control system)
05_SEQUOIA_U (L/O 0408)
147
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Daytime running light system (all mod-
els sold in Canada and some models
sold in the U.S.A.)
The headlights turn on at reduced intensi-
ty when the parking brake is released with
the engine started, even with the light
switch in the ªOFFº position. They will not
go off until the ignition switch is turned
off.
To turn on the other exterior lights and
instrument panel lights, twist the knob to
position 1.
Twist the knob to position 2 to turn to full
intensity for driving at night.
High±Low beamsÐFor high beams, turn
the headlights on and push the lever away
from you (position 1). Pull the lever to-
ward you (position 2) for low beams.
The headlight high beam indicator light
(blue light) on the instrument panel will
tell you that the high beams are on.
Flashing the high beam headlights
(position 3)ÐPull the lever all the way
back. The high beam headlights turn off
when you release the lever.
You can flash the high beam headlights
with the knob turned to ªOFFº.TURN SIGNALS
To signal a turn, push the headlight/
turn signal lever up or down to position
1.
The key must be in the ªONº position.
The lever automatically returns after you
make a turn, but you may have to return
it by hand after you change lanes.
To signal a lane change, move the lever
up or down to the pressure point (position
2) and hold it.
If the turn signal indicator lights (green
lights) on the instrument panel flash faster
than normal, a front or rear turn signal
bulb is burned out.
05_SEQUOIA_U (L/O 0408)
374
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
4±pin connector
7±pin connector
TRAILER LIGHTS
Your vehicle is equipped with a wire
harness stored in the rear end under
body. Some models are fitted with a
socket for trailer lights under the rear
bumper. Use either of them to connect
and operate the trailer lights. However,
the trailer lights must comply with fed-
eral, state/provincial and local regula-
tions. See your local recreational ve-
hicle dealer or rental agency for the
correct type of wiring and relays for
your trailer. Check for correct operation
of the turn signals and stop lights each
time you hitch up. Direct splicing may
damage your vehicle's electrical system
and cause a malfunction of your lights.
7±pin connector (with towing pack-
age)ÐThis can be also connected to
the trailer brake and trailer sub battery.NOTICE
Do not tow a trailer with (1) total tail
light electric power consumption of
over 93 W or (2) total turn and stop
light electric power consumption of
over 54 W.
Ex. (1) Tail lights
" under 9.3 W
(SAE J573 No.69)
10
bulbs
(2) Turn/stop lights
" under 27
W (SAE J573 No.1157)
4
bulbs (left 2, right 2)
BREAK±IN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearing, etc.) for the first
3200 km (2000 miles) of driving.
05_SEQUOIA_U (L/O 0408)
445
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Light bulbsBulb
No.WTy p e
HeadlightsÐ60/55A
Front fog lights900651B
Parking lights1685C
Front side marker
and front turn
signal lights3157
A27/8D
Rear turn signal
lights744021D
Stop/tail and rear
side marker lights744321/5C
Back±up lights92118C
Tail lights1943.8C
License plate lights1685C
High mounted
stoplight1758C
Interior lightsÐ8E
Personal lightsÐ3.8C
Glove box lightÐ1.2C
Luggage
compartment lightÐ8E
Vanity lightsÐ3C
Door courtesy
lights1943.8C
A: HB2 halogen bulbs
B: HB4 halogen bulbs
C: Wedge base bulbs (clear)
D: Wedge base bulbs (amber)
E: Double end bulbs
1. Open the hood. Unplug the connec-
tor. Remove the rubber cover.
If the connector is tight, wiggle it.
ÐHeadlights