2010 Lexus GX460 Owner's Manual

656
4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)
30IGN10 A
EFI ECU, C/OPN RLY, VSC ECU, air
bag ECU, smart entry & start system,
steering lock ECU, CAN gateway
ECU
31GAUGE7. 5 AMeter
32PA N E L7. 5 A
Switch illumination, glove box light,
navigation system, audio system, air
conditioning system, outside rear view
mirror switch, folding seat switch,
multi-information display, P/SEAT
IND, SHIFT, COOL BOX
33TA I L10 A
Front position lights, tail lights, license
plate lights, EFI ECU, rear fog lights,
towing, front fog lights
FuseAmpereCircuit
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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_CANADA (OM60F29U)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→P. 660)
●If the replaced fuse blows again, have the vehicle inspected by your Lexus
dealer.
■If there is an overload in a circuit
The fuses are designed to blow before the entire wiring harness is damaged.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify fuses or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Lexus
dealer as soon as possible.
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4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)
Headlight aim (vehicles with low beam halogen bulbs)∗
∗: If equipped
■ Vertical movement adjustment bolts
Adjustment bolt A
Adjustment bolt B
■ Before checking the headlight aim
Make sure the vehicle has a full tank of gas and the area around
the headlight is not deformed.
Park the vehicle on level ground.
Sit in the driver’s seat.
Bounce the vehicle several times.
STEP1
STEP2
STEP3
STEP4
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4-3. Do-it-yourself maintenance
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Maintenance and care
GX460_CANADA (OM60F29U)
■Adjusting the headlight aim
Turn bolt A in either direction
using a Phillips-head screw-
driver.
Remember the turning direction
and the number of turns.
Turn bolt B the same number of
turns and in the same direction
as in step 1 using a Phillips-head
screwdriver.
If the headlight cannot be
adjusted using this procedure,
take the vehicle to your Lexus
dealer to adjust the headlight
aim.
STEP1
STEP2
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4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)
Light bulbs
You may replace the following bulbs by yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb replacement
seems difficult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
■ Prepare a replacement light bulb
Check the wattage and color of the light bulb being replaced.
(→ P. 763)
■ Remove the engine compartment cover
→ P. 6 0 9
■ Front bulb locations
Headlight low beam
(halogen bulb)
Headlight high beam
and daytime running lights
Parking/front side marker light
Front turn signal light
Fog light
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Maintenance and care
GX460_CANADA (OM60F29U)
Replacing light bulbs■ Headlight low beams (vehicles with halogen bulbs)
Turn the cover counterclockwise
and remove it.
■Rear bulb locations
Rear turn signal light
Back-up light
Rear side marker light
STEP1
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662
4-3. Do-it-yourself maintenance
GX460_CANADA (OM60F29U)Turn the bulb base counterclock-
wise.
Unplug the connector while pull-
ing the lock release.
STEP2
STEP3
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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_CANADA (OM60F29U)■
Headlight high beams and daytime running lights
Turn the bulb base counterclock-
wise.
Unplug the connector while push-
ing the lock release.
STEP1
STEP2
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