Lexus CT - 2014 Fuse Box Diagram

Lexus CT - 2014 Fuse Box Diagram

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7-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct proce-
dure as given in these sections.
Items
Parts and tools
12-volt battery con-
dition (
P. 524)
Grease
Conventional wrench (for terminal clamp bolts)
Brake fluid level
(
P. 522)
FMVSS No.116 DOT 3 or SAE J1703 brake fluid
Rag or paper towel
Funnel (used only for adding brake fluid)
Engine/power
con-
trol unit coolant level
(
P. 519)
“Toyota Super Long Life Coolant” or a similar high quality
ethylene glycol-based non-silicate, non-amine, non-nitrite
and non-borate coolant with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant” is pre-mixed with 50%
coolant and 50% deionized water.
For Canada:
“Toyota Super Long Life Coolant” is pre-mixed with 55%
coolant and 45% deionized water.
Funnel (used only for adding coolant)
Engine oil level
(
P. 515)
“Toyota Genuine Motor Oil” or equivalent
Rag or paper towel
Funnel (used only for adding engine oil)
Fuses (
P. 547)
Fuse with same amperage rating as original
Light bulbs
(
P. 550)
Bulb with same number and wattage rating as original
Phillips-head screwdriver
Flathead screwdriver
Wrench
Radiator
and
con-
denser (
P. 521)
Tire
inflation
pres-
sure (
P. 538)
Tire pressure gauge
Compressed air source
Washer fluid
(
P. 523)
Water or washer fluid containing antifreeze (for winter use)
Funnel (used only for adding water or washer fluid)
513
7-3. Do-it-yourself maintenance
7
Maintenance and care
Engine compartment
12-volt battery
P. 524
Engine coolant reservoir
(
P. 519)
Engine oil level dipstick
(
P. 515)
Engine oil filler cap
(
P. 515)
Power control unit coolant reservoir
(
P. 519)
Brake fluid reservoir
(
P. 522)
Fuse box
(
P. 547)
Radiator
(
P. 521)
Condenser
(
P. 521)
Electric cooling fans
Washer fluid tank
(
P. 523)
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547
7-3. Do-it-yourself maintenance
7
Maintenance and care
Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Remove the fuse.
Only type A fuse can be removed using
the pullout tool.
If any of the electrical components do not operate, a fuse may have blown. If
this happens, check and replace the fuses as necessary.
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2
X
Engine compartment
X
Left side instrument panel
Push the tab in and lift the lid off.
Remove the lid.
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548
7-3. Do-it-yourself maintenance
Check if the fuse is blown.
Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
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1
2
X
Type A
X
Type B
X
Type C
X
Type D
549
7-3. Do-it-yourself maintenance
7
Maintenance and care
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. 550)
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, 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, nongenu-
ine parts or parts not designed for this vehicle may be unusable.
WARNING
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 your Lexus dealer as
soon as possible.
606
8-2. Steps to take in an emergency
If the hybrid system will not start
One of the following may be the cause of the problem:
The electronic key may not be functioning properly.
*
(
P. 608)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. (
P. 78)
There may be a malfunction in the immobilizer system.
*
(
P. 81)
There may be a malfunction in the P position control system.
*
(
P. 173, 585)
The hybrid system may be malfunctioning due to an electrical problem such
as electronic key battery depletion or a blown fuse. However, depending on
the type of malfunction, an interim measure is available to start the hybrid sys-
tem. (
P. 607)
*
:
It may not be possible to shift the shift position other than P.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (
P. 610)
The 12-volt battery terminal connections may be loose or corroded.
(
P. 524)
Reasons for the hybrid system not starting vary depending on the situation.
Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct starting proce-
dure is being followed. (
P. 170)
The interior lights and headlights are dim, or the horn does not sound or
sounds at a low volume.
610
8-2. Steps to take in an emergency
If the 12-volt battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle with a 12-volt
battery, you can jump start your vehicle by following the steps below.
Open the hood (
P. 510) and fuse
box cover.
Open the exclusive jump starting
terminal cover.
The following procedures may be used to start the hybrid system if the vehi-
cle’s 12-volt battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
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2
612
8-2. Steps to take in an emergency
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximately 5 minutes to recharge the 12-volt bat-
tery of your vehicle.
Open and close any of the doors of your vehicle with the power switch off.
Maintain the engine speed of the second vehicle and start the hybrid system
of your vehicle by turning the power switch to ON mode.
Make sure the “READY” indicator comes on. If the indicator light does not
come on, contact your Lexus dealer.
Once the hybrid system has started, remove the jumper cables in the exact
reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the fuse box
cover to its original position.
Once the hybrid system starts, have the vehicle inspected at your Lexus dealer
as soon as possible.
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is off.
Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
When the 12-volt battery is removed or discharged
The hybrid system may not start. (
P. 526)
If the 12-volt battery discharges while the shift position is in P, it may not be possible to
shift the shift position to other positions. In this case, the vehicle cannot be towed with-
out lifting both front wheels because the front wheels will be locked. (
P. 570)
When the 12-volt battery is reconnected, start the hybrid system and confirm that the
shift position can be changed to each position using the shift position indicator.
Make sure that the key is not inside the vehicle when recharging or replacing the 12-
volt battery. The key may be locked in the vehicle if the alarm is activated. (
P. 83)
Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical appli-
ances. If the vehicle is left for a long time, the 12-volt battery may discharge, and the
hybrid system may be unable to start. (The 12-volt battery recharges automatically while
the hybrid system is operating.)
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