3. Electrical System Information
Emergency Responder’s Guide
6
7 (AC Compressor), 6(PTC Heater) 10 (Main Service Disconnect)
Figure 6 Figure 7
Table 1: Electrical System Components
Component
Location
Description
1
On-Board
Chargers and
DC/DC
Converter
Rear compartment, floor pan
area
Two independent on-board chargers convert standard
110/220 volt AC wall plug power into DC power to charge
the high voltage battery. The DC/DC converter reduces
the voltage of the high voltage battery to provide power to
the 12-Volt accessory components (i.e. headlights, radio,
windows).
2
J1772 Charge
Port
Rear panel driver side
This is the interface that connects the SAE J1772
standard charging connector to the vehicle.
3
Rear Service
Disconnect
(RSD)
Inside vehicle, under rear seat
cushion, under access panel
The RSD will disconnect all systems from the Lithium ion
battery pack.
4
High Voltage
Cables (2)
Run length of battery pack
under floor pan.
All high voltage harnesses are identified in orange.
Cables carry high voltage (33 volts DC) from battery to
high voltage components (i.e. chargers, inverter, DC/DC
converter, AC compressor and PTC heater.)
5
Propulsion
Inverter
Motor compartment in holding
fixture above Propulsion Motor
The inverter generates a power signal to control speed
and torque of the electric drive motor.
6
Positive
Temperature
Coefficient (PTC)
Heater
Under hood above AC
Compressor
This is a high voltage electric heat source in the system. It
uses DC voltage to warm a high-current grid in the
coolant stream.
7
High Voltage AC
Compressor
Under engine hood below
Power train Control Module
High voltage AC compressor for separate battery and
cabin air conditioning
8
12-Volt Battery
Rear of trunk on right side
This is a 12-Volt battery (AGM-type) to provide power for
accessories
9
Li-ion Battery
Pack
Under floor pan attached
between front and rear
suspension
The Lithium ion battery has capacity of 31 kWh and
nominal voltage of 333 Volts. This battery supplies power
to the propulsion motor and high voltage components.
