2000 TOYOTA TUNDRA Owners Manual

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Part 7
DO- IT- YOURSELF
MAINTENANCEÐ
Chapter 7- 3
Electrical components

Checking battery condition

Battery recharging precautions

Checking and replacing fuses

Adding washer fluid

Replacing light bulbs
CAUTION
BATTERY PRECAUTIONS
The battery produces flammable and
explosive hydrogen gas.

Do not cause a spark from the bat-
tery with tools.

Do not smoke or light a match near
the battery.
The electrolyte contains poisonous
and corrosive sulfuric acid.

Avoid contact with eyes, skin or
clothes.

Never ingest electrolyte.

Wear protective safety glasses when
working near the battery.

Keep children away from the bat-
tery.
EMERGENCY MEASURES

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.

If electrolyte gets on your skin,
thoroughly wash the contact area. If
you feel pain or burning, get medi-
cal attention immediately.

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.

If you happen to 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.
Checking battery c onditionÐ
ÐPrecautions
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ÐChecking battery exterior
TerminalsGround cable
Hold- down clamp
Check the battery for corroded or loose
terminal connections, cracks, or loose
hold- down clamp. 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.
b. If the terminal connections are loose, tighten their clamp nutsÐbut do not
overtighten.
c. Tighten the hold- down clamp only enough to keep the battery firmly in
place. Overtightening may damage the
battery case.
NOTICE

Be sure the engine and all accesso-ries are off before performing main-tenance.

When checking the battery, remove
the ground cable from the negativeterminal (- º mark) first and rein-stall it last.

Be careful not to cause a short cir-cuit with tools.

Take care no solution gets into thebattery when washing it.
ÐChecking battery fluid
Ty p e A
Green Dark Clear or light yellow
Ty p e B Red
White
Blue
CHECKING BY THE HYDROMETER
Check the battery condition by the
hydrometer color.
Hydrometer color
ConditionTy p e ATy p e BCondition
GREENBLUEGood
DARKWHITE
Charging necessary.
Have battery
checked by your
Toyota dealer.
CLEAR or
LIGHT
YELLOW
RED
Have battery
checked by your
Toyota dealer.
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Battery recharging precautions
During recharging, the battery is pro-
ducing hydrogen gas.
Therefore, before recharging:1. If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
2. Be sure the power switch on the re- charger is off when connecting the
charger cables to the battery and when
disconnecting them.
CAUTION

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.

Only do a slow charge (5 A or
less). Charging at a quicker rate is
dangerous. The battery may ex-
plode, causing personal injuries.
NOTICE
Never recharge the battery while the
engine is running. Also, be sure allaccessories are turned off.
Checking and replacing fuses
Ty p e A
Good Blown
Ty p e B
Ty p e C Good Blown
Good 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.
See Fuse locationsº in Chapter 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
Part 8 of this manual for the functions
controlled by each circuit.
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Type A fuses can be pulled out by the
pull- out tool. The location of the pull- out
tool is shown in the illustration.
If you are not sure whether the fuse has
blown, try replacing the suspected fuse
with one that you know is good.
If the fuse has blown, push a new fuse
into the clip.
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 DOMEº,
A/Cº or HTRº fuse, which may be dis-
pensable for normal driving, and use it if
its amperage rating is the same.
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.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.
CAUTION
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.
Adding washer fluid
If any washer does not work or low
windshield washer fluid level warning
light comes on, the washer tank may be
empty. Add washer fluid.
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.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-age your vehicle's paint.
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Replacing light bulbsÐ
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.
CAUTION
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.
NOTICE
Only use a bulb of the listed type.
Light bulbsBulbNo.WTy p e
HeadlightsÐ60/55A
Front fog lights900655B
Parking, front
turn signal and
front side
marker lights
3157NA27/8C
Rear turn signal
lights315627D
Stop and tail
and rear side
marker lights
315727/8D
Back- up lights92118D
License plate
lights
Ty p e A
Ty p e B
168
1945
3.8D
D
High mounted
stoplight and
cargo lamps
92118D
Interior lightÐ8E
Personal lightsÐ8E
Vanity lightÐ1.5E
Light bulbsBulb No.WTy p e
Door courtesy
lights1943.8D
Glove box lightÐ1.2D
Step lightÐ1.4D
A: HB2 halogen bulbs
B: HB4 halogen bulbs
C: Wedge base bulbs (amber)
D: Wedge base bulbs
E: Double end bulbs
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ÐHeadlights
1. Open the hood. Unplug the connec-tor. Remove the rubber cover.
If the connector is tight, wiggle it.2. Release the bulb retaining spring and remove the bulb. Install a new
bulb and the bulb retaining spring.
To install a bulb, align the tabs of the
bulb with the cutouts of the mounting
hole.
TOP PULLº mark
3. Install the rubber cover with the TOP PULLº mark upward and
snuggle on the boss. Then insert the
connector.
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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ÐFront fog lights
1. Turn the bulb base counterclockwiseto the front of the vehicle as shown.2. Pull the bulb out of the bulb base.
If the connector is tight, wiggle it.3. Install a new bulb base by turning it clockwise to the front of the vehicle.
Aiming is not necessary after replacing
the bulb. When aiming adjustment is nec-
essary, contact your Toyota dealer.
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Use a Phillips- head screwdriver. Remove
and install the clip as shown in the fol-
lowing illustrations.Removing clip
Installing clip
ÐParking, front turn signal
and front side marker lights
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