(Continued)
1 High Voltage Battery —
Approximately up to 450 Volts
DC
Located under the vehicle, on the
right hand side, forward of the
rear wheel. Liquid cooled lithium
ion.
Provides High Voltage storage
for the vehicle electric motor.
2 High Voltage Wiring Runs underneath the vehicle
from the high voltage battery to
the engine compartment. All High
Voltage wiring has orange-
colored insulation.
Provides the physical connection
between the High Voltage
system and High Voltage
components.
3 High Voltage Electric Motor Mounted between the engine and
transmission.
To provide traction to the vehicle.
4 High Voltage Battery Charging
Port
Located in the left hand front
fender.
Allows High Voltage battery
charging using suitable charging
stations.
5 Charge Unit Located in the engine
compartment on the left hand
side.
To charge HV battery.
6 Electric Heater Located in the engine
compartment on the left hand
side, below the headlamp.
Heats the coolant to provide the
passenger compartment with
consistent heat.
7 Electric A/C Compressor Located in front of the engine. It
has an orange high-voltage wire
attached to it using an interlock
connector.
Provides electric A/C operation.
Replaces the belt driven A/C
compressor.
8 Inverter System Controller (ISC) Located under the hood on the
passenger side, next to the
washer fluid reservoir. Has
orange High Voltage wires and
Motor Electronics Cooling
System (MESC) hoses attached.
To convert DC power to AC and
provide to electric motor and DC
to AC to charge the HV battery.
9 DC/DC Converter Located under the hood on the
passenger side, next to the
washer fluid reservoir. Mounted
with the Inverter System
Controller (ISC).
Provides 12 volts to charge the
12-volt battery and run vehicle
accessories.
10 Gasoline Engine Mounted in the engine
compartment similar to non-
hybrid vehicles.
This engine operates similar to
non-hybrid vehicles.
11 Electronically Controlled
Transmission
Mounted behind the engine
similar to non-hybrid vehicles.
This transmission includes a
hybrid drive unit with a High
Voltage electric motor and a
integral disconnect clutch.
High Voltage Electrical System Information 1-7
Section 1: High Voltage Electrical System Information
2020 Explorer / Aviator Hybrid Vehicle Emergency Response Guide - 04/2019
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