2013 TOYOTA 4RUNNER light

534 4-3. Do-it-yourself maintenance
4RUNNER_U
■Brake fluid can absorb moisture from the air
Excess moisture in the brake fluid can cause a dangerous loss of braking
efficiency. Use only newly opened brake fluid.
CAUTION
■When filling the reservoir
Take care as brake fluid can harm your hands and eyes and damage painted
surfaces.
If fluid gets on your hands or in your eyes, flush the affected area with clean
water immediately.
If you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads
wear out or when the fluid level in the accumulator is high.
If the reservoir needs frequent refilling, there may be a serious proble\
m.

535
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
Power steering fluid
■ Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: Vehicle has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in frigid temperatures. (Fluid tem-
perature, 140°F - 175°F [60°C - 80°C]).
Cold: Engine has not been run for about 5 hours. (Room tempera- ture, 50°F - 85°F [10°C - 30°C]).
CTH43AS016

538 4-3. Do-it-yourself maintenance
4RUNNER_U
■After recharging/reconnecting the battery (vehicles with smart key sys-
tem)
● Unlocking the doors using the smart key system may not be possible
immediately after reconnecting the battery. If this happens, use the wire-
less remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the “ENGINE START STOP” switch in ACCES-
SORY mode. The engine may not start with the “ENGINE START STOP”
switch turned OFF. However, the engine will operate normally from the
second attempt.
● The “ENGINE START STOP” switch mode is recorded by the vehicle. If
the battery is reconnected, the vehicle will return the “ENGINE START
STOP” switch mode to the status it was in before the battery was discon-
nected. Make sure to turn off the engine before disconnect the battery.
Take extra care when connecting the battery if the “ENGINE START
STOP” switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
CAUTION
■ Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.

540 4-3. Do-it-yourself maintenance
4RUNNER_U
Washer fluidTy p e A If any washer does not work or
the low washer fluid warning light
comes on, the washer tank may
be empty. Add washer fluid.
Ty p e B If the washer fluid level is at
“LOW ” , add washer fluid.
CTH43AS119
CTH43AS071
■Using the gauge (Type B only)
The washer fluid level can be checked by
observing the position of the level on the
liquid-covered holes in the gauge.
If the level falls below the second hole
from the bottom (the “LOW” position),
refill the washer fluid.
CTH43AS134
Current
fluid level

544 4-3. Do-it-yourself maintenance
4RUNNER_U
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to
expose the fabric, and bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the
size or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not
registered, the tire pre ssure warning system will not work properly. After
driving for about 20 minutes, the ti re pressure warning light comes on
after blinking for 1 minute to indicate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if they have seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system doe s not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Maximum load of tire
Check that the number given by di viding the maximum load by 1.10 of
the replacement tire is greater than 1/2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the
tire, see the load limit at maximum cold
tire inflation pressure mentioned on the
sidewall of the tire. (P. 652)
CTH43AS081

564 4-3. Do-it-yourself maintenance
4RUNNER_U
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1PTC HTR NO.330 A
PTC heater
2DEF30 ARear window defogger
3DEICER 20 A
Windshield wiper de-icer
4AIR PMP HTR10 AAir pump heater, AI combina-
tion valve
5PTC HTR NO.230 A
PTC heater
6SUB BATT30 ATrailer sub battery
7PTC HTR NO.150 A
PTC heater
8MIR HTR10 AOutside rear view mirror defog-
gers
9TOWING TAIL30 A
Trailer tail light
10A/C COMP10 AAir conditioning system
11STOP10 A
Stop/tail lights
12IG220 AINJ, IGN, GAUGE fuses
13HORN10 AHorn(s)
14EFI 25 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
CTH43AS146

565
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
15A/F20 A
A/F sensor
16H-LP RH-HI10 ARight-hand headlight (high
beam)
17H-LP LH-HI10 ALeft-hand headlight (high
beam)
18HTR50 A
Air conditioning system
19400W INV 80 APower outlets
20ST30 A
Starter system
21H-LP HI20 AH-LP RH-HI, H-LP LH-HI fuses
22ALT-S7.5 A Charging system
23TURN&HAZ15 ATurn signal lights, emergency
flashers
24ETCS10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
25PRB30 A
Automatic running boards sys-
tem
26TOWING30 A
Trailer stop/turn lights
27SHORT PIN 
No circuit
28RAD NO.1 10 A Audio system
29AM27.5 A Starter system
30MAYDAY 7.5 A
MAYDAY
31AMP30 AAudio system
32ABS NO.150 AABS, VSC
33ABS NO.230 A
ABS, VSC
34AIR PMP50 AAIR PMP MTR
35DOME10 AInterior lights, vanity lights
36ECU-B10 AMultiplex communication sys-
tem, meter and gauge
37H-LP RH-LO10 ARight-hand headlight (low
beam)
38H-LP LH-LO10 A
Left-hand headlight (low beam)
39INJ10 AMultiport fuel injection system/
sequential multiport fuel injec-
tion system
FuseAmpereCircuit

567
4-3. Do-it-yourself maintenance
4
Maintenance and care
4RUNNER_U
■
Driver’s side instrument panel
FuseAmpereCircuit
1TA I L10 A Stop/tail lights
2PA N E L7.5 A Instrument panel lights
3GAUGE7.5 A Meter and gauge
4IGN10 A Multiport fuel injection system/
sequential multiport fuel injec-
tion system, air bag system,
smart key system
5WASHER20 A Wiper and washer
6WIP30 A Wiper and washer
7S/ROOF 25 A Electric moon roof
8DOOR RR25 A Power windows
9DOOR D25 A Power windows
10DOOR BACK30 A
Multiplex communication sys-
tem
11DOOR P30 A Power windows
12P/SEAT FR 30 A Front passenger's power seat
13S/HTR FR 20 A Seat heater system
14ECU-IG NO.210 AAir conditioning system, multi-
port fuel injection system/
sequential multiport fuel injec-
tion system
15IG17.5 A
Turn signal lights, emergency
flashers
16ECU-IG NO.110 AVehicle stability control sys-
tem, tire pressure warning sys-
tem, steering sensor
17DOOR7.5 A Power windows