Ford Electric Ranger 2001 Manual page 224

303-03-3
DESCRIPTION AND OPERATION (Continued)
The cooling system removes heat from various
electronic components. The coolant pump has a
centrifugal impeller design with a 12-volt permanent
magnet motor. The pump is used to circulate the
coolant through the DC/DC module,
motor/transaxle, and the traction inverter module
(TIM). In an Electric Ranger equipped with air
conditioning, coolant is also circulated through the
A/C inverter motor controller. Because of the
Electric Rangers unique systems, vehicle coolant is
not used in the heating/defrosting system.
Item Part Number Description
1 — Radiator
2 — Coolant Temperature Sensor
3 — Direct Current to Direct
Current (DC/DC) Converter
(Continued)
Engine Cooling
The interface adapter assembly (IAA) controls the
operation of the electric coolant pump and the
electric radiator fan, based upon vehicle coolant
temperature. The IAA receives the temperature
information from the coolant temperature sensor,
which is located near the coolant pump. The pump
circulates coolant through the vehicle using a
combination of rubber hoses and metal tubing. The
IAA energizes the pump whenever the ignition key
is in the ON position and during traction battery
charging if the DC/DC module is charging the
auxiliary 12-volt battery. The electric fan is also
controlled by the IAA. If the coolant temperature
exceeds 40°C (104°F), the cooling fan runs at low
speed. If the coolant temperature rises above 45°C
(113°F), the cooling fan runs at high speed. The
IAA turns the cooling fan off when the coolant
temperature is less than 35°C (95°F). The IAA will
also activate the fan during vehicle charging if the
DC/DC module is charging the auxiliary battery, or
when the air conditioning is operated.
Cooling System —Postal Ranger EV
Item Part Number
4 —
5 —
6 —
303-03-3
Description
Motor/Transaxle
Traction Inverter Module
(TIM)
Coolant Pump
2001 Ranger EV, 01/2001