1WW COOLING SERVICE DATA

Thermostat
Condition Specified Condition
Standard valve opening temperature 100 °C (212 °F)
Cooling Fan Motor
Item Condition Specified Condition
Cooling fan motor Battery voltage applied at 20°C (68°F) 12.2 to 15.7 A
No. 2 cooling fan motor Battery voltage applied at 20°C (68°F) 11.7 to 15.2 A
Radiator
Item Condition Specified Condition
Reserve tank cap

Standard pressure

(for brand-new reserve tank cap)

93 to 123 kPa (0.9 to 1.3 kgf/cm2, 13.5 to 18.0 psi)

Minimum pressure

(for used reserve tank cap)

79 kPa (0.8 kgf/cm2, 11.5 psi)

Relay
Item Tester Connection Condition Specified Condition
FAN NO. 1 relay 3 - 5 Battery voltage not applied between terminals 1 and 2 10 kΩ or higher
Battery voltage applied between terminals 1 and 2 Below 1 Ω
FAN NO. 2 relay 3 - 4 Battery voltage not applied between terminals 1 and 2 Below 1 Ω
Battery voltage applied between terminals 1 and 2 10 kΩ or higher
3 - 5 Battery voltage not applied between terminals 1 and 2 10 kΩ or higher
Battery voltage applied between terminals 1 and 2 Below 1 Ω
FAN NO. 3 relay 3 - 5 Battery voltage not applied between terminals 1 and 2 10 kΩ or higher
Battery voltage applied between terminals 1 and 2 Below 1 Ω
Coolant
Capacity Classification
w/o Combustion Type Power Heater: 7.0 liters (7.4 US qts, 6.2 Imp. qts) Toyota recommends the use of approved "Toyota Premium Long Life Coolant for 1WW engines" or equivalent.
w/ Combustion Type Power Heater: 7.3 liters (7.7 US qts, 6.4 Imp. qts)