hazard TOYOTA SEQUOIA 2001 Service Repair Manual

DID9M±01
I28302
Example :
HeadCapstan
Pinch Roller
I28257
± DIAGNOSTICSAUDIO SYSTEM
DI±1959
2153 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. COMPACT DISC PLAYER
Compact Disc (hereafter called ºCDº) Players use a laser beam pick±up to read the digital signals recorded
on the CD and reproduce analog signals of the music, etc. 4.7 in. (12 cm) and 3.2 in. (8 cm) discs are available
for the CD player.
HINT:
Never disassemble or apply oil to any part of the player unit. Do not insert any object other than a disc, into
the CD player.
NOTICE:
CD players use an invisible laser beam which could cause hazardous radiation exposure. Be sure
to operate the player correctly as instructed.
2. MAINTENANCE
Tape Player / Head Cleaning:
(a) Raise the cassette door with your finger.
Using a pencil or similar object, push in the guide.
(b) Using a cleaning pen or cotton applicator soaked in clean-
er, clean the head surface, pinch rollers and capstans.
3. MAINTENANCE
CD Player / Disc Cleaning:
If the disc gets dirty, clean the disc by wiping the surface from
the center to outside in a radial directions with a soft cloth.
NOTICE:
Do not use a conventional record cleaner or anti±static pre-
servative.

BR0A9±04
± BRAKEBRAKE SYSTEM
BR±1
3168 Author: Date:
2005 SEQUOIA (RM1146U)
BRAKE SYSTEM
PRECAUTION

Care must be taken to replace each part properly as it could affect the performance of the brake
system and result in a driving hazard. Replace the parts with parts having the same part number
or equivalent.

It is very important to keep parts and the area clean when repairing the brake system.

If the vehicle is equipped with a mobile communication system, refer to the precautions in the
IN section.

SR01S±06
± STEERINGSTEERING SYSTEM
SR±1
3228 Author: Date:
2005 SEQUOIA (RM1146U)
STEERING SYSTEM
PRECAUTION

Care must be taken to replace parts properly because they could affect the performance of the
steering system and result in a driving hazard.

The SEQUOIA is equipped with an SRS (Supplemental Restraint System) such as the driver air-
bag and front passenger airbag. Failure to carry out service operation in the correct sequence
could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious
accident. Before servicing (including removal or installation of parts, inspection or replace-
ment), be sure to read the notices precautionary in the RS section.

When disconnecting the battery terminal, initialize the following system after the terminal is re-
connected.
System NameSee Page
Back Door Power Window Control SystemBE±77

When replacing the steering angle sensor, drive the vehicle straight ahead at a speed of 6.5 mph
(10.5 km/h) or more. Accordingly, zero point calibration of the steering angle sensor is per-
formed.

After performing ºFront wheel alignment adjustmentº, clearing and reading the yaw rate & de-
celeration sensor zero point calibration data is necessary (See page DI±897).

± 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
±

BE033±09
I28404
Turn Signal LightHazard Warning Switch Combination Switch

Turn Signal Switch
Ignition Switch Instrument Panel J/B

FLASHER Relay
Turn Signal Light
Turn Signal Light
Engine Room J/B

TURN HAZ Fuse
± BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE±35
3439 Author: Date:
2005 SEQUOIA (RM1146U)
TURN SIGNAL AND HAZARD WARNING SYSTEM
LOCATION

BE2DD±03
I12796
Right Turn
2 4 5 7 8
9 631
10 11 12 13 14 15 16 17
Left Turn
I04046
Wire Harness Side: BE±36
± BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
3440 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT TURN SIGNAL SWITCH CONTINUITY
Switch positionTester connectionSpecified condition
Left turn1 ± 2Continuity
Neutral±No continuity
Right turn2 ± 3Continuity
If continuity is not as specified, replace the switch.
2. Connector disconnected:
INSPECT TURN SIGNAL FLASHER CIRCUIT
Disconnect the connector from the turn signal flasher and in-
spect the connector on the wire harness side as shown in the
table below.
Tester connectionConditionSpecified condition
1 ± GroundIgnition switch LOCK or ACCNo voltage
1 ± GroundIgnition switch ONBattery positive voltage
2 ± GroundAlwaysContinuity
3 ± GroundAlwaysContinuity
4 ± GroundAlwaysBattery positive voltage
5 ± GroundTurn signal switch RIGHT or OFFNo Continuity
5 ± GroundTurn signal switch LEFTContinuity
6 ± GroundTurn signal switch LEFT or OFFNo Continuity
6 ± GroundTurn signal switch RIGHTContinuity
7 ± GroundAlwaysContinuity
8 ± GroundHazard warning switch OFFNo Continuity
8 ± GroundHazard warning switch ONContinuity
If the circuit is as specified, perform the inspection on the next
step.
If the circuit is not as specified, inspect the circuit connected to
other parts.

I24334
Turn Signal Flasher Relay
Connector Front View:
I28728
10
19
± BODY ELECTRICALTURN SIGNAL AND HAZARD WARNING SYSTEM
BE±37
3441 Author: Date:
2005 SEQUOIA (RM1146U)
3. Connector connected:
INSPECT TURN SIGNAL FLASHER RELAY OPERA-
TION
Connect the wire harness side connector to the turn signal
flasher and inspect the connector from the back side, as shown.
Tester connectionConditionSpecified condition
2 ± GroundTurn signal switch RIGHTBattery positive voltage e 0 V
3 ± GroundTurn signal switch LEFTBattery positive voltage e 0 V
If operation is not as specified, replace the relay.
4. INSPECT HAZARD WARNING SWITCH CONTINUITY
(a) Remove the center cluster finish panel.
(b) Disconnect the connector from the integrated center clus-
ter.
(c) Check that continuity exists between terminals 19 and 10
with the switch ON.
(d) Check that no continuity exists between terminals 19 and
10 with the switch OFF.
If continuity is not as specified, replace the switch.

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

BE2D5±02
I24381
Wire Harness Side: BE±148
± BODY ELECTRICALTRAILER TOWING
3552 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION
1. INSPECT TOWING CONVERTER CIRCUIT
Remove the towing converter with the connector still connected
and inspect the wire harness side connector from the back side,
as shown in the table below.
Tester connectionConditionSpecified condition
4 ± 6Turn signal switch LEFT or hazard warning switch ON10 ± 14 V e 0 V
4 ± 6Turn signal switch LEFT and stop light switch ON (Brake pedal depressed)10 ± 14 V e 0 V
4 ± 6Turn signal switch OFF, hazard warning switch OFF and stop light switch OFF
(Brake pedal released)0 V
4 ± 6Stop light switch ON (Brake pedal depressed)10 ± 14 V
6 ± 9Turn signal switch LEFT or hazard warning switch ON10 ± 14 V e 0 V
6 ± 9Turn signal switch OFF or RIGHT and hazard warning switch OFF0 V
6 ± Body groundAlwaysContinuity
2 ± 6Turn signal switch RIGHT or hazard warning switch ON10 ± 14 V e 0 V
2 ± 6Turn signal switch RIGHT and stop light switch ON (Brake pedal depressed)10 ± 14 V e 0 V
26Turn signal switch OFF, and hazard warning switch OFF and stop light switch OFF0V2 ± 6Turn signal switch OFF, and hazard warning switch OFF and sto light switch OFF
(Brake pedal released)0 V
2 ± 6Stop light switch ON (Brake pedal depressed)10 ± 14 V e 0 V
1 ± 6Always10 ± 14 V
6 ± 8Stop light switch ON (Brake pedal depressed)10 ± 14 V
6 ± 8Stop light switch OFF (Brake pedal released)0 V
3 ± 6Turn signal switch RIGHT or hazard warning switch ON10 ± 14 V e 0 V
3 ± 6Turn signal switch OFF or LEFT and hazard warning switch OFF0 V
If the circuit is not as specified, inspect the circuit connected to
other parts.