2014 Lexus IS300h Wire harness

4777-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
■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. 4 7 8 )
●If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
■If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
■When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this vehicle.
Because certain bulbs are connected to circuits designed to prevent overload, non-gen-
uine parts or parts not designed for this vehicle may be unusable.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failure to do so may cause damage to the vehicle, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than that 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.
●Do not modify the fuses or fuse boxes.
■Fuse box near the power control unit
Never check or replace the fuses as there are high voltage parts and wiring near the
fuse box.
Doing so may cause electric shock, resulting in death or serious injury.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as soon
as possible.
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4857-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
■Back-up light
Open the trunk, remove the 3
clips on the side which the bulb is
to be replaced and pull back the
trunk lid cover.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Pull out the connector carefully,
ensuring that excessive pulling load is
not applied to the wire harness.
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the back-up light to visually check
that there is no light leaking from the
bulb base.
Reinstall the trunk lid cover with the 3 clips.
To install the clips, simply push them in.
1
2
3
4
5
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4897-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
Install the outer cover of the mir-
ror by installing the lower side
first, then installing the upper side.
When installing the lower side of the
cover, insert the side turn signal light
pin into the hole in the cover.
Secure the cover with screws and
reconnect the connectors back
together.
Secure the wire harness by reinstall-
ing it to the hooks on the back side of
the mirror surface as it was.
Align the tabs, and secure the
mirror by pushing in each diago-
nally-opposite pair of tabs in
order.
Make sure to insert the tabs in order
as shown in the illustration, and push
them in until a click is heard.
If you do not hear the click, do not
force the tabs in. Instead, remove the
mirror and check that the tabs are
aligned.
After securing the mirror, remove the
protective tape applied to the lower
part of the mirror cover.
10
11
12
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