1999 Lexus LS400 check engine

ELECTRICAL COMPONENTS
446

1Terminals 2Hold±down clamp
Check the battery for corroded or loose
connections, cracks, or loose hold±down clamps.
1. If the battery is corroded, wash it off with a solution of
warm water and baking soda. Coat the terminals with
grease to prevent further corrosion.
2. If the connections are loose, tighten the clamp bolts
± but do not overtighten.
3. Tighten the hold±down clamp only enough to keep
the battery firmly in place. Overtightening may damage
the battery case.NOTICE
Make sure the engine and all accessories are
turned off before performing maintenance.
When checking the battery, remove the ground
cable first and reinstall it last.
Be careful not to cause a short circuit with tools.
Take care no solution gets into the batterywhen washing it.

ELECTRICAL COMPONENTS
454

Engine compartment 1Spare fuses
2Pull±out tool
1. Turn the ignition switch off and open the fuse box
lid.
Determine which f
use may be causing the problem. The
lid of the fuse box shows the name of the circuit for each
fuse.
64L013
2. Make sure the inoperative component is turned
off. Pull the suspected fuse straight out with the
pull±out tool and check it. If it has blown, push a new
fuse into the clips.

ELECTRICAL COMPONENTS
459
ADDING WASHER FLUID
64L017
If the washer tank becomes nearly empty, add
washer fluid.
You may use plain water as washer fluid. However, in
cold areas where temperatures range below the
freezing point, use washer fluid containing antifreeze.
This product is available at your Lexus 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 othersubstitute because it may damage your vehicle'spaint.
CHECKING THE HEADLIGHT AIM
(Vehicles with discharge headlight
only)