Get DIYMaintenance-Electrical Guide for Toyota 4 Runner SUV Third Generation (1996-2002)

’01 4Runner_U (L/O 0008)

SECTION 7− 3

DO−IT−YOURSELF MAINTENANCE

Electrical components

Checking battery condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258

Battery recharging precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259

Checking and replacing fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260

Adding washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

Replacing light bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262

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Checking battery condition—

—Precautions

—Checking battery exterior

Ground

cable

Terminals

D If electrolyte gets on your skin,

thoroughly wash the contact area. If

you feel pain or burning, get medi-

cal attention immediately.

CAUTION

BATTERY PRECAUTIONS

The battery produces flammable and

explosive hydrogen gas.

D If electrolyte gets on your clothes,

there is a possibility of its soaking

through to your skin, so immediate-

ly take off the exposed clothing and

follow the procedure above, if nec-

essary.

D Do not cause a spark from the bat-

tery with tools.

D Do not smoke or light a match near

the battery.

Hold−down

clamp

The electrolyte contains poisonous

and corrosive sulfuric acid.

D If you accidentally swallow electro-

lyte, drink a large quantity of water

or milk. Follow with milk of magne-

sia, beaten raw egg or vegetable

oil. Then go immediately for emer-

gency help.

D Avoid contact with eyes, skin or

clothes.

Check the battery for corroded or loose

terminal connections, cracks, or loose

hold−down clamp.

D Never ingest electrolyte.

D Wear protective safety glasses when

working near the battery.

a. If the battery is corroded, wash it off

with a solution of warm water and bak-

ing soda. Coat the outside of the termi-

nals with grease to prevent further cor-

rosion.

D Keep children away from the bat-

tery.

EMERGENCY MEASURES

b. If the terminal connections are loose,

tighten their clamp nuts—but do not

overtighten.

D If electrolyte gets in your eyes,

flush your eyes with clean water

immediately and get immediate

medical attention. If possible, con-

tinue to apply water with a sponge

or cloth while en route to the medi-

cal office.

c. Tighten the hold−down clamp only

enough to keep the battery firmly in

place. Overtightening may damage the

battery case.

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’01 4Runner_U (L/O 0008)

—Checking battery fluid

Battery recharging precautions

During recharging, the battery is pro-

ducing hydrogen gas.

NOTICE

Type A

Clear or

light yellow

z Be sure the engine and all accesso-

ries are off before performing main-

tenance.

Therefore, before recharging:

Green

Dark

1. If recharging with the battery installed

on the vehicle, be sure to disconnect

the ground cable.

z When checking the battery, remove

the ground cable from the negative

terminal (“−” mark) first and rein-

stall it last.

Type B

Blue

2. Be sure the power switch on the re-

charger is off when connecting the

charger cables to the battery and when

disconnecting them.

White

Red

z Be careful not to cause a short cir-

cuit with tools.

CAUTION

z Take care no solution gets into the

battery when washing it.

CHECKING BY HYDROMETER

D Always charge the battery in an un-

confined area. Do not charge the

battery in a garage or closed room

where there is not sufficient ventila-

tion.

Check the battery condition by the

hydrometer color.

Hydrometer color

Condition

D Only do

a

slow charge (5

A

or

Type A

Type B

less). Charging at a quicker rate is

dangerous. The battery may ex-

plode, causing personal injuries.

Green

Blue

Good

Charging necessary.

Have battery

Dark

White

Red

checked by your

Toyota dealer.

Clear or

light

yellow

Have battery

checked by your

Toyota dealer.

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’01 4Runner_U (L/O 0008)

Checking and replacing fuses

NOTICE

Type A

Never recharge the battery while the

engine is running. Also, be sure all

accessories are turned off.

Good

Type B

Blown

If the headlights or other electrical

components do not work, check the

fuses. If any of the fuses are blown,

they must be replaced.

Good

Type C

Blown

See “Fuse locations” in Section 7−1 for

locations of the fuses.

Turn the ignition switch and inoperative

component off. Pull a suspected fuse

straight out and check it.

Determine which fuse may be causing the

problem. The lid of the fuse box shows

the name of the circuit for each fuse. See

Section 8 of this manual for the functions

controlled by each circuit.

Good

Blown

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’01 4Runner_U (L/O 0008)

Adding washer fluid

Type A fuses can be pulled out by using

the pull−out tool. The location of the pull−

out tool is shown in the illustration.

If the new fuse immediately blows out,

there is a problem with the electrical sys-

tem. Have your Toyota dealer correct it as

soon as possible.

If any washer does not work, the wash-

er tank may be empty. Add washer

fluid.

If you are not sure whether the fuse has

blown, try replacing the suspected fuse

with one that you know is good.

You may use plain water as washer fluid.

However, in cold areas where tempera-

tures range below freezing point, use

washer fluid containing antifreeze. This

product is available at your Toyota dealer

and most auto parts stores. Follow the

manufacturer’s directions for how much to

mix with water.

CAUTION

If the fuse has blown, push a new fuse

into the clip.

Never use a fuse with a higher am-

perage rating, or any other object, in

place of a fuse. This may cause ex-

tensive damage and possibly a fire.

Only install a fuse with the amperage rat-

ing designated on the fuse box lid.

If you do not have a spare fuse, in an

emergency you can pull out the “PWR

OUTLET” or “A.C” fuse, which may be

dispensable for normal driving, and use it

if its amperage rating is the same.

NOTICE

Do not use engine antifreeze or any

other substitute because it may dam-

age your vehicle’s paint.

If you cannot use one of the same amper-

age, use one that is lower, but as close

as possible to the rating. If the amperage

is lower than that specified, the fuse

might blow out again but this does not

indicate anything wrong. Be sure to get

the correct fuse as soon as possible and

return the substitute to its original clip.

It is a good idea to purchase a set of

spare fuses and keep them in your ve-

hicle for emergencies.

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Replacing light bulbs—

The following illustrations show how to

gain access to the bulbs. When replacing

a bulb, make sure the ignition switch and

light switch are off. Use bulbs with the

wattage ratings given in the table.

The inside of the lens of exterior lights

such as headlights may temporarily fog up

when the lens becomes wet in the rain or

Bulb

No.

Light bulbs

Headlights

W

Type

—

60/55

55

A

B

in a car wash. This is not

a

problem

because the fogging is caused by the

temperature difference between the outside

and inside of the lens, just like the

windshield fogged up in the rain. However,

if there is a large drop of water on the

inside of the lens, or if there is water

pooled inside the light, contact your

Toyota dealer.

Front fog lights

Parking and front

side marker lights

—

5

C

D

CAUTION

Front turn signal

lights

Halogen bulbs have pressurized gas

inside and require special handling.

They can burst or shatter if scratched

or dropped. Hold a bulb only by its

plastic or metal case. Do not touch

the glass part of a bulb with bare

hands.

21

Rear turn signal

lights

Stop/tail lights

—

21/5

18

5

C

Back−up lights

License plate light

High mounted

stoplight

NOTICE

921

18

C

Only use a bulb of the listed type.

Interior light

—

8

E

C

Personal lights

Glove box light

1.4

Luggage

compartment light

—

8

E

A: HB2 halogen bulbs

B: H3 halogen bulbs

C: Wedge base bulbs (clear)

D: Wedge base bulbs (amber)

E: Double end bulbs

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’01 4Runner_U (L/O 0008)

—Headlights

1. Open the hood. Unplug the connec-

tor. Remove the rubber cover.

2. Release the bulb retaining spring

and remove the bulb. Install a new

bulb and the bulb retaining spring.

3. Install the rubber cover with the

“TOP” mark upward, and snuggle on

the boss. Insert the connector.

If the connector is tight, wiggle it.

To install a bulb, align the tabs of the

bulb with the cutouts of the mounting

hole.

Make sure the rubber cover fits snugly on

the connector and the headlight body.

Aiming is not necessary after replacing

the bulb. When aiming adjustment is nec-

essary, contact your Toyota dealer.

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—Front fog lights

1. Loosen the cover retaining screws

and remove the cover.

2. Lift up the soft casing and discon-

nect the cords.

3. Release the bulb retaining spring

and remove the bulb. Install a new

bulb and the bulb retaining spring.

To install the bulb, align the cutouts of the

bulb with the protrusions of the mounting

hole.

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’01 4Runner_U (L/O 0008)

—Parking and front side

marker lights

Use a Phillips−head screwdriver.

4. Connect the cord and put the soft

casing into the cover.

5. Install the cover with the retaining

screws.

Aiming is not necessary after replacing

the bulb. When aiming adjustment is nec-

essary, contact your Toyota dealer.

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—Rear turn signal, stop/tail,

and back−up lights

—Front turn signal lights

Use a Phillips−head screwdriver.

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’01 4Runner_U (L/O 0008)

—License plate lights

—High mounted stoplight

a: Back−up light

b: Rear turn signal lights

c: Stop/tail light

Use a Phillips−head screwdriver.

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DIYMaintenance-Electrical for Your Toyota 4 Runner SUV Third Generation (1996-2002)

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