2017 TOYOTA SEQUOIA air conditioning

Maintenance and care4
381
4-1. Maintenance and careCleaning and protecting the vehicle exterior ......... 382
Cleaning and protecting the vehicle interior .......... 385
4-2. Maintenance Maintenance requirements .................. 388
General maintenance....... 391
Emission inspection and maintenance (I/M)
programs
.......................... 394
4-3. Do-it-yourself maintenance Do-it-yourself service precautions .................... 395
Hood ................................ 399
Engine compartment ........ 400
Tires ................................. 415
Tire inflation pressure ...... 423
Wheels ............................. 427
Air conditioning filter......... 430
Wireless remote control battery ............................ 433
Checking and replacing fuses .............................. 435
Light bulbs........................ 447

397
4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may
move suddenly, become hot, or become electrically energized. To avoid death
or serious injury observe the following precautions.
■
When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine
drive belt.
● Be careful not to touch the engine, radiator, exhaust manifold, etc. right
after driving as they may be hot. Oil and other fluids may also be hot.
● Do not leave anything that may burn easily, such as paper or rags, in the
engine compartment.
● Do not smoke, cause sparks or expose an open flame to fuel or the bat-
tery. Fuel and battery fumes are flammable.
● Be extremely cautious when working on the battery. It contains poisonous
and corrosive sulfuric acid.
● Take care because brake fluid can harm your hands or 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.
■ When working near the cooling fans or radiator grille
Be sure the engine switch is in the LOCK position.
With the engine switch on, the cooling fans may automatically start to run if
the air conditioning is on and/or the coolant temperature is high.
■ Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from
getting in the eyes.

430
4-3. Do-it-yourself maintenance
Air conditioning filter
The air conditioning filter must be changed regularly to maintain air
conditioning efficiency.
■ Replacement method
Turn the engine switch off.
Open the glove box.
Remove the internal tray.
Remove the inside cover by
sliding up while pulling toward
you.

431
4-3. Do-it-yourself maintenance
4
Maintenance and care
Remove the filter cover.
Pull the filter out of the filter
outlet.
Remove the air conditioning
filter and replace it with a new
one.
The
“ ↑ UP” marks shown on the
filter should be pointing up.

432 4-3. Do-it-yourself maintenance
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas wit h heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to
the “Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■ If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.

441
4-3. Do-it-yourself maintenance
4
Maintenance and care
39 AIR SUS NO.2 7.5 A
Electronically modulated air sus-
pension system
40 SPARE 5 A Spare fuse
41 SPARE 15 A Spare fuse
42 SPARE 30 A Spare fuse
43 AIR SUS 50 A Electronically modulated air sus-
pension system
44 PBD 30 A Power back door
45 RR HTR 40 A Air conditioning system
46 H-LP CLN 30 A Headlight cleaner
47 DEFOG 40 A Rear window defogger
48 SUB BATT 40 A Trailer towing
49 ABS1 50 A Anti-lock brake system, vehicle sta-
bility control system
50 ABS2 40 A Anti-lock brake system, vehicle sta-
bility control system
51 ST 30 A Starting system
52 HTR 50 A Air conditioning system
53 LH-J/B 150 A AM1, TAIL, PANEL, ACC, CIG, LH-
IG, 4WD, ECU-IG NO.1, BK/UP LP,
SEAT-HTR, A/C IG, ECU-IG NO.2,
WSH, WIPER, OBD, A/C, TI&TE,
FR P/SEAT RH, MIR, DR/LCK, FR
P/SEAT LH, CARGO LP, PWR
OUTLET, POWER NO.1 fuses
54 ALT 180 A
*LH-J/B, HTR, SUB BATT, TOW
BRK, STOP, FOG, TOW TAIL,
DEICER fuses
140 A
*
55 A/PUMP NO.1 50 A Multiport fuel injection system/
sequential multiport fuel injection
system
FuseAmpereCircuit

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 INVERTER 15 A Power outlet (120 V)
2 FR P/SEAT LH 30 A Power front driver’s seat
3 DR/LCK 25 A Multiplex communication system
4 POWER No.5 30 A Power back door
5 OBD 7.5 A On-board diagnosis system
6 PWR OUTLET 15 A Power outlets
7 AM1 7.5 A Shift lock system, starting system,
seat heaters
8 A/C 7.5 A Air conditioning system
9 MIR 15 A Outside rear view mirror control,
outside rear view mirror heaters
10 POWER No.3 20 A Power windows 11 FR P/SEAT RH 30 A Power front passenger seat
12 TI&TE 15 A Power tilt and power telescopic
13 S/ROOF 25 A Electric moon roof
14 RR SEAT-HTR
RH 10 A Seat heaters

444 4-3. Do-it-yourself maintenance
15 ECU-IG No.1 7.5 AAnti-lock brake system, vehicle sta-
bility control system, multiplex com-
munication system, intuitive
parking assist system, power front
driver’s seat, power tilt and power
telescopic, shift lock, tire pressure
warning system, accessory meter,
trailer towing, power outlet, electric
moon roof, power back door, head
light cleaner, Blind Spot Monitor
system, BSM main switch
16 AIR SUS IG 20 A Electronically modulated air sus-
pension system
17 LH-IG 7.5 A Back-up lights, charging system,
gauge and meters, turn signal
lights, air conditioning system, seat
heaters, rear window defogger
18 4WD 20 A Four-wheel drive control system
19 RR SEAT-HTR
LH 10 A Seat heaters
20 WSH 20 A Window washer
21 WIPER 30 A Wiper and washer
22 ECU-IG No.2 7.5 A Multiplex communication system,
power steering, gateway ECU
23 TAIL 15 A Tail lights, trailer lights (tail lights),
parking lights
24 A/C IG 10 A Air conditioning system
25 SEAT-HTR 20 A Seat heater or Heated and venti-
lated seats
FuseAmpereCircuit