Toyota Mirai - 2016 Fuse Box Diagram

Toyota Mirai - 2016 Fuse Box Diagram

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7-3. Do-it-yourself maintenance
7
Maintenance and care
MIRAI_OM_Europe_OM62005E
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the
correct procedure as given in these sections.
Items
Parts and tools
12-volt
battery
condition

P. 337)
• Grease
Conventional wrench (for terminal clamp bolts)
Inverter
coolant
level (
P. 334)
• “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.
“Toyota Super Long Life Coolant” is pre-mixed with
50% coolant and 50% deionized water.
Funnel (used only for adding coolant)
Fuses (
P. 371)
Fuse with same amperage rating as original
Light bulbs
(
P. 375)
Bulb with same number and wattage rating as origi-
nal
Phillips-head screwdriver
Flathead screwdriver
• Wrench
Radiator and con-
denser (
P. 335)
Tire inflation pres-
sure (
P. 361)
Tire pressure gauge
Compressed air source
Washer fluid
(
P. 336)
Water or washer fluid containing antifreeze (for win-
ter use)
Funnel (used only for adding water or washer fluid)
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7-3. Do-it-yourself maintenance
7
Maintenance and care
MIRAI_OM_Europe_OM62005E
Motor compartment
Washer fluid tank
(
P. 336)
Inverter coolant reservoir
(
P. 334)
Fuse box
(
P. 371)
Fuel cell stack coolant radiator
(
P. 335)
Inverter coolant radiator
(
P. 335)
Condenser
(
P. 335)
Electric cooling fans
Fuel cell stack coolant reser-
voir
(
P. 334)
Fuel cell stack coolant sub
radiator
(
P. 335)
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4
5
6
7
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7-3. Do-it-yourself maintenance
7
Maintenance and care
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Checking and replacing fuses
Turn the power switch off.
Open the fuse box cover.
Motor compartment
Push the tab in and lift the lid
off.
Driver’s side instrument panel (left-hand drive vehicles)
Remove the lid.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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2
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7-3. Do-it-yourself maintenance
MIRAI_OM_Europe_OM62005E
Passenger’s side instrument panel (right-hand drive vehicles)
Remove the cover.
Remove the lid.
Remove the fuse with the pull-
out tool.
Only type A fuses can be removed
using the pullout tool.
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7-3. Do-it-yourself maintenance
7
Maintenance and care
MIRAI_OM_Europe_OM62005E
Check if the fuse is blown.
Normal fuse
Blown fuse
Replace the blown fuse with a new fuse of an appropriate amperage rat-
ing. The amperage rating can be found on the fuse box lid.
4
1
2
Type A
Type B
Type C
Type D
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7-3. Do-it-yourself maintenance
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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. 375)
If the replaced fuse blows again, have the vehicle inspected by any autho-
rized Toyota dealer or repairer, or another duly qualified and equipped pro-
fessional.
If there is an overload in a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
When replacing light bulbs
Toyota recommends that you use genuine Toyota products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine 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 Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
Do not modify the fuses or fuse boxes.
NOTICE
Before replacing fuses
Have the cause of electrical overload determined and repaired by any
authorized Toyota dealer or repairer, or another duly qualified and equipped
professional as soon as possible.
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8-2. Steps to take in an emergency
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If the fuel cell system will not start
One of the following may be the cause of the problem:
The electronic key may not be functioning properly. (
P. 420)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
The fuel fill door may be open. (
P. 218)
There may be a malfunction in the immobilizer system. (
P. 78)
There may be malfunction in the shift control system.
*
(
P. 193, 399)
The fuel cell 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 mea-
sure is available to start the fuel cell system. (
P. 419)
The electronic key may be in battery-saving mode. (
P. 145)
*
: It may not be possible to shift the shift position from P to another position.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (
P. 423)
The 12-volt battery terminal connections may be loose or corroded.
(
P. 337)
Reasons for the fuel cell system not starting vary depending on
the situation. Check the following and perform the appropriate
procedure:
The fuel cell system will not start even though the correct start-
ing procedure is being followed. (
P. 188)
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
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8-2. Steps to take in an emergency
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When trouble arises
MIRAI_OM_Europe_OM62005E
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. 330) and
fuse box cover.
Open the exclusive jump start-
ing terminal cover.
Remove the motor cover.
The following procedures may be used to start the fuel cell sys-
tem if the 12-volt battery is discharged.
You can also call any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional.
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8-2. Steps to take in an emergency
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When trouble arises
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Once the fuel cell system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, reinstall the motor
cover and the fuse box cover to its original position.
Once the fuel cell system starts, have the vehicle inspected at any
authorized Toyota dealer or repairer, or another duly qualified and
equipped professional as soon as possible.
Starting the fuel cell system when the 12-volt battery is discharged
The fuel cell system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the fuel cell 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.
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 appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the fuel cell system may be unable to start. (The
12-volt battery recharges automatically while the fuel cell system is operat-
ing.)
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