2014 TOYOTA CAMRY HYBRID cooling

435
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Coolant selection
Only use “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.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deionized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55% coolant and 45% deionized water. (Minimum temperature: -44 F [-42 C])
For more details about coolant, contact your Toyota dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiators, hoses, engine/power control unit coolant reser-
voir caps, drain cock and water pump.
If you cannot find a leak, have your Toyota dealer test the cap and check for
leaks in the cooling systems.
CAUTION
■When the hybrid system is hot
Do not remove the engine/power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the
cap is removed, causing serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor stra ight antifreeze. The correct mixture of
water and antifreeze must be used to provide proper lubrication, corrosion
protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.

463
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse block on the back of the cover
FuseAmpereCircuit
1 METER-IG2 5 A Gauge and meters
2 FAN 50 A Electric cooling fans
3 H-LP CLN 30 A No circuit
4 ENG W/PMP 30 A Multiport fuel injection system/
sequential multiport fuel injection
system
5 PTC HTR NO.2 50 A PTC heater
6 PTC HTR NO.1 50 A PTC heater
7 HTR 50 A Air conditioning system
8 DC/DC 120 A Hybrid system
9 ABS NO.1 30 A Electronically controlled brake sys-
tem
10 H-LP-MAIN 30 A H-LP LH-LO, H-LP RH-LO, MNL H-
LP LVL, headlight (low beam)
11 ABS MTR NO.2 50 A Electronically controlled brake sys-
tem
12 ABS MTR NO.1 50 A Electronically controlled brake sys-
tem

466 4-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box)
FuseAmpereCircuit
1 PM IGCT 7.5 A Hybrid system, electronic con-
trolled transmission
2 BATT VL SSR 10 A Hybrid system
3 INV 7.5 A Hybrid system
4 DC/DC IGCT 10 A Hybrid system
5 INV W/PMP
RLY 7.5 A Hybrid system
6 BATT FAN 7.5 A Battery cooling fan
7 INV W/PMP 15 A Hybrid system
8 IGCT-MAIN 25 A DC/DC IGCT, INV, BATT VL SSR,
PM IGCT, INV W/PMP RLY, BATT
FA N

467
4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the instrument panel
FuseAmpereCircuit
1 ECU-IG1 NO.2 10 A Shift lock control system, seat
heaters, smart key system, tire
pressure warning system, multiplex
communication system, audio sys-
tem, navigation system, moon roof,
auto anti-glare inside rear view mir-
ror, air conditioning system
2 ECU-IG1 NO.1 10 A Electronically controlled brake sys-
tem, electric cooling fans, stop
lights, steering sensor, Vehicle
Proximity Notification System, rear
window defogger, outside rear view
mirror defogger, back-up lights,
audio system, navigation system
3 PANEL 10 A Switch illumination, air condition-
ing system, shift lever light, glove
box light, audio system, navigation
system, personal lights, interior
lights
4 TAIL 15 A Parking lights, side marker lights,
tail lights, license plate lights, fog
lights

542
5-2. Steps to take in an emergency
If your vehicle overheats
Correction procedures■ If the rightmost segment of th e engine coolant temperature
display are flashing
Stop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the hybrid system.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The following may indicate that your vehicle is overheating.
●The rightmost segment of the engine coolant temperature dis-
play ( P. 174) is flashing or a lo ss of hybrid system power is
experienced. (For example, the vehicle speed does not
increase.)
● “HYBRID SYSTEM OVERHEAT” ( P. 503) is shown on the
multi-informat ion display.
● Steam comes out from under the hood.
STEP1
STEP2
STEP3

5
When trouble arises
543
5-2. Steps to take in an emergency
The coolant level is satisfactory if
it is between the “F” and “L” lines
on the reservoir.
Reservoir
“F” (Full)
“L” (Low)
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the hybrid system and turn the air conditioning system
on to check that the radiator cooling fans operate and to
check for coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Conf irm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
STEP4
STEP5
STEP6

544 5-2. Steps to take in an emergency
If the fans are not operating:Stop the hybrid system im mediately and contact your
Toyota dealer.
If the fans are operating: Have the vehicle inspected at the nearest Toyota dealer.
■ If “HYBRID SYSTEM OVERHEAT” is shown on the multi-infor-
mation display
Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
STEP7
STEP1
STEP2
STEP3

546 5-2. Steps to take in an emergency
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
● After the hybrid system has been turned off, check that on the
multi-information display and the “READY” indicator are off. When the
hybrid system is operating, the gasoline engine may automatically start, or
the cooling fans may suddenly operate even if the gasoline engine stops.
Do not touch or approach rotating parts such as the fans, which may lead
to fingers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
● Do not loosen the coolant reservoir cap while the hybrid system and radia-
tor are hot.
Serious injuries, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
■When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
■ To prevent damage to the cooling system
Observe the following precautions:
●Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.)
● Do not use any coolant additive.