Toyota Previa 1992 Manuel utilisateur

BE-1

BODY

ELECTRICAL

SYSTEM

Page

GENERAL

INFORMATION

...............ccesseseceseseeesseaesvonees

BE-2

POWER:

SOURCE

vivsscissciccessarcvunsaceconedstancvassenensennataresteene

BE-6

IGNITION

SWITCH

.........c.ccccereese

ease

une

eine

san

soe

BE-9

LIGHTING

SYSTEM

vissiisicsiscccescasscscciersseccascsvsvecsasoucsvaces

BE-11

WIPER

AND

WASHER

SYSTEM..........ccccccceseeeeeeeeeenunee

BE-29

COMBINATION.

METER...........cccccccsccscccssescccesseaseeeeeenes

BE-36

DEFOGGER

SYSTEM

iisccvssscsiscccssccsncecscscccccnreceaeeronennsees

BE-49

POWER

WINDOW

CONTROL

SYSTEM................::00008

BE-52

POWER

DOOR

LOCK

CONTROL

SYSTEM...................

BE-57

SLIDING

ROOF

SYSTEM

................ccsccsseeseseeareseesseceoeus

BE-63

POWER

MIRROR

CONTROL

SYSTEM..............:::00ees00

BE-66

CRUISE

CONTROL

SYSTEM............cc0ccscssssssecseeeesseensees

BE-69

THEFT

DETERRENT

SYSTEM............::ccccceceeeeeeeeaeeeeenens

BE-92

AUDIO)

SVS

vssissscissacernescectsvarsesinavecsr

ever

eesemerne

BE-112

BE-2

BODY

ELECTRICAL

SYSTEM

—

General

Information

Example:

Red

861389

Green

Example:

acoon

Female

rit2ys

stair]

ais

Male

GENERAL

INFORMATION

Wiring

color

code

Wire

colors

are

indicated

alphabetical

code.

Black

Blue

Red

Brown

Light

Green

Violet

=Green

Orange

White

Gray

Pink

Yellow

The

first

letter

indicates

the

basic

wire

color

and

the.

second

letter

indicates

the

color

the

stripe.

Connector

NUMBER

FEMALE

CONNECTOR

Numbered

order

from

upper

left

lower

right.

NUMBER

MALE

CONNECTOR

Numbered

order

from

upper

right

lower-left.

HINT:

When

connectors

with

different

the

same

number

terminals

are

used

with

the

same

parts,

each

connector

name

(letter

the

alphabet)

and

number

specified.

Equal

Amperage

Rating

10 10

(A)

x30

BODY

ELECTRICAL

SYSTEM

—

General

Information

BE-3

e167

High

Current

Fuse

and

Medium

Current

Fuse

EE)

Equal

Amps

Rating

Connector

“A”

e.g.

No.

connector

Connector

"A*

Connector

*B*

Connector

*B*

Connector

“A*

{weres

Puller

DISTINCTION

MALE

AND

FEMALE

CONNECTORS

Male

and

female

connectors

are

distinguished

shape

their

internal

pins.

(a)

All

connectors

are

shown

from

the

open

end,

and

the

lock

top.

(b)

pull

apart

the

connectors,

pull

the

connector

itself,

not

the

wires.

HINT:

Check

see

what

kind

connector

you

are

disconnecting

before

pulling

apart.

eeu

Pull

Press

Down

Replacement

High

Current

Fuse,

Medium

Current

Fuse

and

Fuse

HINT:

replacing

the

fuse

besure

replace

with

fuse

fusible

link

with

and

equal

amperage

rating.

NOTICE:

Turn

off

all

electrical

components

and

the

ignition

switch

before

replacing

fuse

fusible

link.

not

exceed

the

fuse

fusible

link

amperage

rating.

Always

use

fuse

puller

for

removing

and

insert-

ing

fuse.

Remove

and

insert

straight

and

out

without

twisting.

Twisting

could

force

open

the

terminals

too

much,

resulting

bed

connection.

fuse

fusible

link

continues

blow,

short

circuit

indicated.

The

system

must

checked

qualified

technician.

How

Inspect

for

System

Inspection

This

inspection

procedure

simple

troubleshooting

which

should

carried

out

the

vehicle

during

system

operation

and

was

prepared

the

assumption

system

component

troubles

(except

for

the

wires

and

connectors,

etc.).

toh

Always

inspect

the

trouble

taking

the

following

items

into

consideration.

Ground

point

fault

Open

short

circuit

the

wire

harness

Connector

terminal

connection

fault

Fuse

fusible

link

fault

NOTICE:

This

operations.

Therehor:

due

regard

for

security.

Incase

connecting

the

battery

directly,

care-

ful

not

short

circuit,

and

select

the

applicable

voltage.

on-vehicle

inspection

during

system

inspect

the

trouble

with

BE-4

ignition

Terminal

Fuse

swt

Voltmeter

Realy

Swa

Solenoid

e089

Ohmmeter|

LED

ee2427

BODY

ELECTRICAL

SYSTEM

—

General

Information

Check

for

Voltage

(a)

Establish

conditions

which

voltage

present

the

check

point.

Example:

Ignition

switch

and

switch

(SW1)

on.

©-

Ignition

switch,

switch

(SW1)

and

relay

(switch

(SW2)

off).

{b)

Using

voltmeter,

connect

the

negative

(-)

lead

good

ground

point

negative

(-)

battery

tei

nal

and

the

positive

(+)

lead

the

connector

component

terminal.

This

check

can

done

with

test

bulb

instead

voltmeter.

Check

for

Continuity

and

Resistance

(a)

Disconnect

the

battery

terminal

wire

there

voltage

between

the

check

points.

{b)

Contact

the

two

leads

ohmmeter

each

the

check

points.

the

circuit

has

diodes,

reverse

the

two

leads

and

check

again.

’

When

contacting

the

negative

(~)

lead

the

diode

pos-

itive

(+)

side

and

the

positive

(+)

lead

the

negative

(-)

side,

there

should

continuity.

When

contacting

the

two

leads

reverse,

there

should

continuity.

HINT:

Specifications

may

vary

depending

the

type

tester,

refer

the

tester's

instruction

manual

before

performing

the

inspection.

Digital

Type

BODY

ELECTRICAL

SYSTEM

—

General

Information

Analog

Type

Light

beo8e2

Check

LED

(Light

Emitting

Diode)

the

same

manner

that

for

diodes.

Use

tester

with

power

source

greater

‘overcome

the

circuit

resistance.

suitable

tester

not

available,

apply

battery

positive

voltage

and

check

that

the

LED

that

the

LED

lights

up.

Disconnect,

Test

Light

sw2

Ignition

Terminal

Fuse

Case

Short

®)

Disconnect

Relay

shor

Disconnect

Solenoid

BE-5

(c)

Use

volt/ohmmeter

with

high

impedance

(10k/V

minimum)

for

troubleshooting

the

electrical

circuit.

Check

for

Short

Circuit

(a)

Remove

the

blown

fuse

and

eliminate

all

loads

from

the

fuse.

(b)

Connect

test

bulb

place

the

fuse.

(c)

Establish

conditions

which

the

test

bulb

comes

on.

Example:

Ignition

switch

on.

Ignition

switch

and

switch

(SW1)

on.

©-

Ignition

switch,

switch

(SW1)

and

relay

(connect

the

relay)

and

switch

(SW2)

off

(or

disconnect

switch

(SW2)).

(d)

Disconnect

and

reconnect

the

connectors

while

watching

the

test

bulb.

The

short

lies

between

the

connector

where

the

test

bulb

stays

lit

and

the

connector

where

the

bulb

goes

out.

(e)

Find

the

exact

location

the

short

lightly

shaking

the

problem

wire

along

the

body.

BE-6

BODY

ELECTRICAL

SYSTEM

—

Power

Source

BODY

ELECTRICAL

SYSTEM

—

Power

Source

BE-7

POWER

SOURCE

Parts

Location

(Cont'd)

Parts

Location

soieekas

MHBGe@OES

wo]

[Oooo

}

BSE

GSS

TE)

Fusible

Link

Block

Fuses

Relays

and

Circuit

Breaker

Fusible

Link

Block

7.5A

15,

DOME

158

Front

Heater

Relay

IGN

75A

16.

DEFOG

158A

Front

Heater

High

Relay

CHARGE

75A

17.

ECUB

15A

Headlight

Control

Relay

FOG

20A

18.

CIG

15A

DB.

ine

Oil

Level

Relay

—

19, EFI

15A

TAIL

15A

20.

TURN

7.5A

HAZ-HORN

156A

21.

GAUGE

10A

Circuit

Breaker

40A

HEAD

(LH)

15A

22.

FRWIPER

Taillight

Control

Relay

HEAD

(LH-UPR)

154

23.

ENGINE

OIL

154,

HORN

Rel

10.

HEAD

(RH-UPR)

15A

24.

RR-WIPER

Fog

Ligh

11.

ENGINE

7.54

25.

154

Power

Main

Relay

12.

RADIO

75A

26.

ECUIG

18A

CBPOWER

—-30A

13.

STA

75A

27.

FR-WASHER

110A

Door

(CB)

308

14.

STOP

208

HEAD

(RH)

ABS}

“

(w/o

ABS)

MAIN

50A

AMI

—

504

AMY

50a

ALT

100A

ALT

100

ABS

60A

Bai

wee

AMZ

208

am2

208

‘e528

0¢5129,

E6130

—

leesi3:

BE-8

BODY

ELECTRICAL

SYSTEM

—

Power

Source

BODY

ELECTRICAL

SYSTEM

—

Ignition

Switch

BE-9

Wiring

Diagram

IGNITION

SWITCH

Parts

Location

Ignition

Switen

ABS

604

RADIO

7.54

CIG 15A

ECU-IG

158

ENGINE

OIL

154

ENGINE

7.54

GAUGE

104

TORN

Ignition

Switch

para

Key

Unlock

Warning

Switch

WIPER

30A

emis

WIPER

154

Wiring

and

Connector

Diagrams

‘AM2

208

IGN

7.58

—

[Stecharge

Wetting

Ugh

‘aaa

Key

Unlock

Warning

Switch

CHG

7.54

DOME

Power

Relay

Ignition

POWER

Switch

ALT

100A

AM1

504,

(Medium

Current)’

Ignition

Switch

DOOR

Key

Unlock

Warning

Switch

HEATER

Heater

Relay

AIC

108,

eesin

er028

ECU-B

154

—¥

Talligtt

Control

Relay

—

TAIL

‘i

Parts

Inspection

TAIL

(LH)

154

[

FOG

20A

Ignition

System

DEFOG

15A

INSPECT

SWITCH

o~-

(ignition

Switch/

Continuity)

STOP

204

MAIN

—ON-

SOA

DOME

15A

sonny

Jafalale|7]

Pores

Switch

position

|||

ahead

“4

Lock

EFL

TSA

o+o

HEAD

(RH)

15a

Sota

obs

Headlight

Control

Relay

o~0

ata

Ris

Battery)

15a

HEAD

(LH)

START

15A

ere28

ONS

continuity

not

specified,

replace

the

switch.

(CANADA)

BODY

ELECTRICAL

SYSTEM

—

Ignition

Switch

Key

Confine

Prevention

System

INSPECT

SWITCH

(Key

Unlock

Warning

Switch/

Continuity)

Terminal

E2193

0-10-28

‘Switch

position

OFF

(Key

removed)

(Key

set)

continuity

not

specified,

replace

the

switch.

BE-11

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

LIGHTING

SYSTEM

Parts

Location

Junction

Block

and

Relay

Block

No.1

Ignition

Switch

Headlights

Junction

Block

and

Relay

Block

No.1

light

Control

Relay

Control

Relay

Hazard

Warning

Switch

Daytime

Resistor

Daytime

Running

Light

Relay

No.

Light

Control

Switch

Light

Control

Rheostat

Daytime

Running

Light

Relay

Front

Fog

Light

Switch

BE-12

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

Wiring

and

Connector

Diagrams

(Headlight

and

Taillight

System)

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

BE-13

(Illuminated

Entry

System)

Hi-Beam

Indicator

Light

Headlights

[

Headlight

Control

Relay

Headlight

Dimmer

Relay

Front

Fog

Relay

Taillights

eth)

van

--@&

From

Taillight

Control

Relay

(w/

Daytime

Running

Light

Control

Switch

and

Headlight

Dimmer

Switch

Headlight

Dimmer

Relay

Connector

“B”

Taillight

Control

Headlight

Control

Relay

‘No2908,

vse

—

Be1e39

aez7es

BELe3e

[eo2

e21

5.14.8

—_

Open

Door

Warning

Light

Room

Front

Room|

—

Light

DOME

Control

Room

Light

Relay

Switch

[—}

[Battery

Diivera)

Switch

(Passeng:

Room

Light

Control

Relay

Courtesy

Switch

(Front

Door)

(Slide

Door)

Rear

Room

Light

Stide

Door

Courtesy

Switch

Back

Door

Courtesy

Switch

Front

Door

Courtesy

(Back

Door)

ale

(Turn

Signal

and

Hazard

Warning

System)

HAZ-HORN

Ignition

Switch

TURN

Switch

Connector

“A”

—

ial

FAM?

Turn

Signal

Flasher

—To

Horn

Relay

Ignition

Switch

517]

[10

Hai

OFF

ote

lotete)

jets

Switch

aH)

Turn

Signal

Lights

Turn

Signal

Switch

Connector

“B”

er028

Besr3e

|vse2'

eczess

Hazard

Warning

Switch

BE-14

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

(Front

Fog

Light

System)

sesso

E1647

5:82

Fog

Lights

Front

Fog

Light

Relay

FOG

gas

Front

Fog

Light

Switch

Headlight

(HI)

Battery

Front

Fog

Light

Switch

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

BE-15

System

Description

DAYTIME

RUNNING

LIGHT

SYSTEM

From

Fog

Light

Generator

Terminal

illumination

Light

From

Brake

Warning

Light

Brake

Fluid

Level

Warning

Switch

[rawlote

Light

Control

Switch

BE-16

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

Operation

IGNITION

SWITCH

“ON”

AND

LIGHT

CONTROL

SWITCH

“OFF”

HINT:

the

parking

brake

pedal

depressed

when

the

engine

started,

the

Daytime

Runni

Light

(DRL)

will

not

light

after

the

engine

has

started.

Once

the

parking

brake

released,

DRL

with

then

light

and

will

remain

regardless

operation

the

parking

brake

pedal.

DRL

remain

until

the

ignition

switch

turned

off.

‘When

the

switches

are

set,

current

led

from

the

battery

terminal

the

running

light

After

engine

running,

because

continuity

made

between

terminal

and

the

body

ground,

terminal

and

the

body

ground

the

running

light

relay,

the

taillight

contro!

relay

and

head}

control

relay

are

turned

on,

the

running

lights

will

come

on.

still

low-beam

headlights

which

light

up,

but

they

are

grounded

using

special

resistor

they

are

dimmed

approx.

80%

the

normal

intensity.

LIGHT

CONTROL

SWITCH

“HEAD”

When

the

switch

set,

continuity

made

between

terminal

and

the

body

ground,

and

termir

and

the

body

ground

the

running

light

relay.

Also,

because

the

continuity

made

terminal

and

the

body

ground,

and

terminal

and

the

body

ground

the

running

light

relay

times,

the

taillights

and

headlights

light

up.

HINT:

When

the

headlight

dimmer

switch

set

“Hi”,

continuity

made

between

terminal

the

running

light

relay

and

the

body

ground.

Also,

because

continuity

made

between

terminal

the

running

light

relay

and

the

body

ground,

the

headlight

dimmer

relay

turned

on.

Then

headlights

the

high

beam.

HEADLIGHT

DIMMER

SWITCH

“FLASH”

When

the

switch

set,

continuity

made

between

terminal

and

the

body

ground,

and

termi

and

the

body

ground

the

running

light

relay.

Also,

because

the

continuity

made

terminal

and

the

body

ground,

and

terminal

and

the

body

ground

the

running

light

relay,

headlights

flash.

ENGINE

STOPS

(IGNITION

SWITCH

“ON”)

When

the

engine

stopped,

because

the

continuity

between

terminal

and

terminal

the

Tunning

light

relay

remains,

the

running

lights

also

remain.

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

BE-17

(Daytime

Running

Light

System)

(Cont'd)

HINT:

ignition

switch

turned

“OFF,

because

the

continuity

between

terminal

the

running

light

relay

cut

off,

running

lights

will

off.

Ignition

Switch

Headlight

Control

Relay

028

vez

‘Seraoe

9€2769

se1829

[o182-8

BEI850

ig22

Light

Control

Switch

and

Headlight

Dimmer

Switch

Connector

“A”

Connector

“B”

Taillight

Control

Daytime

Running

Light

No.

Relay

Headlight

Dimmer

Relay

Daytime

Resistor

BE-18

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

BODY

ELECTRICAL

SYSTEM

—

Lighting

System

itis

= 5

Troubleshooting

(Cont'd)

Problem

Possible

cause

Remedy

Problem

Possible

cause

___-

Remedy

“Page

Oniy

one

light

does

not

Light

bulb

burned

out

Replace

bulb

Daytime

running

light

ECU-B

fuse

blown

Replace

fuse

and

check

for

short

BE-3

Nightup

Socket,

wire

ground

faulty

Repair

necessary

syetern

DORs

nok

GAUGE

fuse

blown

—————

ils

eae

{

operate

ere

IGN

fuse

blown

Headlights

not

light

Fusible

link

blown

Replace

fusible

link

iacen

lown

Headlight

control

relay

faulty

Check

relay

ate

ise

blown

Light

controvdimmer

switch

faulty

Check

switch

BE-24

Wintrig’and:ground

tauk

Gace

aaceaaany’

Headlight

control

relay

faulty

Check

relay

——

Del

—

Taillight

control

relay

faulty

Check

relay

BE-24

High

beam

headlights

Light

control/dimmer

switch

Check

switch

credit

poe

headlight

flashers

faulty

i ;

not

operate

idvierorounat

fouls

‘eye

pacebea

Ignition

switch

faulty

Check

switch

Beg

Light

control/dimmer

switch

faulty

Check

switch

BE-24

Tail,

packing

and

license

TAIL

fuse

blown

Replace

fuse

and

check

for

short

iio

ccna

aie

Gate

botrmiidip

Noe

aheuys

Fusible

link

blown

Replace

fusible

link

Mai

Taillight

control

relay

faulty

Thlac

aay

illuminated

entry

DOME

fuse

blown

Replace

fuse

and

check

for

short

BE-3

Light

control

relay

faulty

Ghaskawticht

system

does

not

Room

light

control

relay

faulty

Check

relay

BE-25

asia

Door

courtesy

switch

faulty

Check

switch

BE-26

‘Stop

lights

not

light

Stop

lights

stay

Instrument

lights

not

light

{taillight

light

up)

“Turn

signal

does

not

flash

one

side

Turn

signal

donot

operate

Hazard

warning

lights

not

operate

Wiring

ground

faulty

STOP fuse

blown

Stop

light

switch

faulty

Wiring

ground

faulty

Stop

light

switch

faulty

Wiring

ground

faulty

Turn

signal

switch

faulty

Wiring

ground

faulty

Repair

necessary

Replace

fuse

and

check

for

short

Wiring

ground

faulty

Repair

necessary

Adjust

replace

switch

Repair

necessary

Adjust

replace

switch

Repair

necessary

Check

switch

Repair

necessary

HAZ-HORN

fuse

blown

Turn

signal

flasher

faulty

Turn

signal/hazard

switch

faulty

Wiring

ground

faulty

)

HAZ-HORN

fuse

blown

Turn

signal

flasher

faulty

Turn

signal/hazard

switch

faulty

Wiring

ground

faulty

Replace

fuse

and

check

for

short

Check

flasher

Check

switch

Repair

necessary

Replace

fuse

and

check

for

short

Check

flasher

Check

switch

Repair

necessary

Ce manuel convient aux modèles suivants

Table des matières

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