2012 TOYOTA RAV4 EV cooling

358 4-3. Do-it-yourself maintenance
■Coolant selection
Only use “Zerex G 48” or “Glysantin G 48”.
“Zerex G 48” and “Glysantin G 48” are blue in color.
Reference:
The dilution ratio for both “Zerex G 48” and “Glysantin G 48” is 50% cool-
ant and 50% deionized water. (Minimum temperature: approximately -32 F
[-36 C])
For more details about motor/traction battery coolant, contact your Toyota
dealer.
■ If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, motor/traction battery coolant reservoir
cap, 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 system.
CAUTION
■When the EV system is hot
Do not remove the coolant reservoir cap.
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 straight antifreeze. The correct mixture
of water and antifreeze must be used to provide proper lubrication, corro-
sion protection and cooling. Be sure to read the antifreeze or coolant label.
● Do not add heater coolant to the motor or traction battery coolant reser-
voirs. Doing so will negatively affect the coolant’s performance and cause
the cooling system to malfunction.
■ If you spill coolant
Be sure to wash it off with water to prevent damage to parts or paint.

389
4-3. Do-it-yourself maintenance
4
Maintenance and care
Fuse layout and amperage ratings
■ Motor compartment
Type A (driver’s side)
FuseAmpereCircuit
1 INV MTR 10 A Inverter motor
2 IGDI 1 10 ATraction battery, multiplex commu-
nication system, thermal control
system
3 BATT W/P 1 15 A Traction battery
4 BATT W/P 2 15 A Traction battery
5 P/T W/P 15 A Cooling system
6 IGDI MAIN 20 A INV MTR, IGDI 1
7 HAZ 15 A Emergency flashers
8 IGCT 3 20 APM-IGCT, P CNT-IGCT, A/C-IGCT,
FA N -I G C T
9 G/W-B 10 A Multiplex communication system
10 RADIO 30 A Audio system
11 P CNT-B 7.5 A Parking control system

390 4-3. Do-it-yourself maintenance
12 ABS 130 A Anti-lock brake system
13 ECB 1 50 AElectronically controlled brake sys-
tem
14 ECB 2 50 AElectronically controlled brake sys-
tem
15 W/P-IGCT 50 A P/T W/P, BATT W/P 1, BATT W/P 2
16 EPS 60 A Electric power steering
17 P/I 60 AIGCT-D, HORN, parking control
system, IG2
18 MAIN 60 AH-LP MAIN, DRL, ODS, smart key
system, ABS 2, steering lock sys-
tem, PM-B, ECU-B MAIN
19 CONTACTOR 15 A Traction battery, charging system
20 IG2 15 A Starting system
21
HORN 10 A Horn
22 IGCT-D 7.5 A Thermal control system, power
management ECU, parking control
system, multiplex communication
system
23 PM-IGCT 7.5 A Power management system
24 P CNT-IGCT 7.5 A Parking control system
25 A/C-IGCT 10 A Air conditioning system
26 FAN-IGCT 7.5 A Electric cooling fans
FuseAmpereCircuit

392 4-3. Do-it-yourself maintenance
14 SMART7.5 A Smart key system
15 STRG LOCK 20 A Steering lock system
16 AM2 7.5 A Starting system
17 ABS 2 7.5 A Anti-lock brake system
18 PTC HTR 2 50 A Air conditioning system
19 PTC HTR 1 50 A Air conditioning system
20 PTC HTR 3 50 A Air conditioning system
21 CHARGER 5 A Charging system
22 IGCT 2 20 A THRML CTRL, G/W-IGCT
23 HV BATT 10 A Traction battery
24 PM-B 7.5 A Power management system
25 ODS 7.5 A Occupant classification system
26 HTR 50 A Air conditioning system
27 FAN 1 50 A Electric cooling fans
28 FAN 2 50 A Electric cooling fans
29 H-LP MAIN 40 A H-LP LH-LO, H-LP RH-LO, H-LP
LH-HI, H-LP RH-HI, manual head-
light leveling system, daytime run-
ning light system
30 ECU-B MAIN 30 A ECU-B 2, A/C-B
31 SPARE 5 A Spare fuse
32 SPARE 10 A Spare fuse
33 SPARE 20 A Spare fuse
FuseAmpereCircuit

434 5-2. Steps to take in an emergency
Due to the traction
battery's temperature
being high, power out-
put and maximum
speed are limited.Wait for battery cooling
to be completed.
The EV system was
started while the trac-
tion battery's tempera-
ture was very low. Plug in the vehicle to
warm-up the battery.
The EV system was
started while the trac-
tion battery's tempera-
ture is high. Wait for the vehicle to
cool down before driv-
ing.
Warning messageDetailsCorrection procedure

5
When trouble arises
435
5-2. Steps to take in an emergency
Due to the amount of
charge remaining in
the traction battery
and its temperature
being low, power out-
put and maximum
speed are limited.
• Charge the vehicle.
(P. 53)
• Wait for battery warm- up to be completed.
Due to the traction
battery's high temper-
ature and the amount
of charge remaining in
the traction battery
being low, power out-
put and maximum
speed are limited. • Charge the vehicle.
(P. 53)
• Wait for battery cooling to be completed.
The EV system was
started while the trac-
tion battery's tempera-
ture and amount of
charge remaining in
the traction battery are
low. • Charge the vehicle.
(P. 53)
• Wait for battery warm- up to be completed.
Warning messageDetailsCorrection procedure

436 5-2. Steps to take in an emergency
The EV system was
started while the trac-
tion battery's tempera-
ture is high and the
amount of charge
remaining in the trac-
tion battery is low.• Charge the vehicle.
(P. 53)
• Wait for battery cooling to be completed.
Due to the amount of
charge remaining in
the traction battery
being low, power out-
put is limited. Charge the vehicle.
(
P. 53)
The EV system was
started while the
amount of charge
remaining in the trac-
tion battery is low. Charge the vehicle
immediately. (
P. 53)
Warning messageDetailsCorrection procedure

474 5-2. Steps to take in an emergency
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or belt.