Nissan Leaf. Instruction — part 498
EVC-16
< SYSTEM DESCRIPTION >
COMPONENT PARTS
BODY COMPARTMENT
Charge port lid opener actuator relay
EVC-18, "Charge Port Lid Opener Actuator Relay"
A/C relay
Cooling fan relay
The cooling fan relay supplies power to the cooling fan con-
trol module.
F/S CHG relay
Parking actuator relay A
TM-34, "Parking Actuator Relay A"
Refrigerant pressure sensor (without heat pump)
EVC-19, "Refrigerant Pressure Sensor"
Battery current sensor (with battery temperature sensor)
EVC-20, "Battery Current Sensor (With Battery Tempera-
ture Sensor)"
Charge connector lock relay (IPDM E/R)
EVC-18, "Charge Connector Lock Relay"
PDM (Power Delivery Module)
VC-12, "PDM (Power Delivery Module)"
Traction motor inverter
TMS-13, "Traction Motor Inverter"
Traction motor
Parking actuator
Coolant temperature sensor
EVC-21, "Coolant Temperature Sensor"
Cooling fan control module
EVC-22, "Cooling Fan Control Module"
Electric water pump
Charge connector lock actuator
VC-14, "Charge Connector Lock Actuator"
Charge port light
Quick charge port
Charge port lid opener actuator
DLK-21, "Charge Port Lid Opener Actuator"
Normal charge port
No.
Component parts
Function
COMPONENT PARTS
EVC-17
< SYSTEM DESCRIPTION >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
Component Parts Description
Li-ion battery junction box
Accelerator pedal and brake pedal
upper part
ALCIA0127ZZ
No.
Component parts
Function
Li-ion battery controller
EVB-16, "Li-ion Battery Controller"
TCU (telematics communication unit)
•
(Navigation without BOSE)
•
(Navigation with BOSE)
•
(Telematics system)
VSP control unit
VSP-10, "Approaching Vehicle Sound For Pedestrians
(VSP) Control Unit"
BCM (Body Control Module)
BCS-6, "BODY CONTROL SYSTEM : System Description"
Charge status indicator
VC-15, "Charging Status Indicator"
ASCD steering switch
EVC-20, "ASCD Steering Switch"
Combination meter
Charge port lid opener switch
DLK-21, "Charge Port Lid Opener Switch"
Charge connector lock switch
VC-14, "Charge Connector Lock Switch"
Immediate charging switch
VC-14, "Immediate Charging Switch"
P position switch
Selector indicator
Electric shift selector
EVC-18
< SYSTEM DESCRIPTION >
COMPONENT PARTS
VCM
INFOID:0000000010120517
VCM (Vehicle control module) judges the vehicle status according to
signals from various sensors and ECUs, and VCM controls EV sys-
tem in a comprehensive manner. VCM also has a gateway function
for EV system CAN communication and CAN communication, which
enables communication between an ECU performing EV system
CAN communication and an ECU performing CAN communication.
In addition, VCM contains an electric shift control module and per-
forms shift control.
For electric shift control module. Refer to
M/C Relay
INFOID:0000000010120518
The M/C (motor control) relay supplies the main power to the EV system. VCM activates the M/C relay and
supplies power to the EV system when the EV system needs to be started.
F/S Relay
INFOID:0000000010120519
The F/S (fail-safe) relay supplies the driving power for the system main relay inside the Li-ion battery. VCM
activates the F/S relay to make the system main relay controllable when the system is set to READY or when
the battery is charged.
When VCM detects a malfunction in the EV system and judges that the system main relay must be deacti-
vated, VCM deactivates the F/S relay to shut off the system main relay driving power.
F/S CHG Relay
INFOID:0000000010120520
The F/S CHG (fail-safe charge) relay supplies the driving power for the quick charge relay inside the PDM
(Power Delivery Module). When VCM recognizes a quick charge start, VCM activates the F/S CHG relay to
make the quick charge relay operable. During driving, F/S CHG relay remains OFF so that the quick charge
relay is not activated.
Charge Port Lid Opener Actuator Relay
INFOID:0000000010120521
The charge port lid opener actuator relay is controlled by VCM and supplies power to the charge port lid
opener actuator.
Charge Connector Lock Relay
INFOID:0000000010120522
The charge connector lock relay is controlled by VCM and supplies power to the charge connector lock actua-
tor.
A/C auto amp.
•
[Auto A/C (with heat pump)]
•
[Auto A/C (without heat
pump)]
VCM (vehicle control module)
System main relay 2
Pre-charge relay
System main relay 1
Stop lamp switch
Brake pedal position switch
EVC-20, "Brake Pedal Position Switch"
Accelerator pedal position sensor
EVC-19, "Accelerator Pedal Position Sensor"
No.
Component parts
Function
JSCIA0483ZZ
COMPONENT PARTS
EVC-19
< SYSTEM DESCRIPTION >
D
E
F
G
H
I
J
K
L
M
A
B
EVC
N
O
P
A/C Relay
INFOID:0000000010120523
The A/C (air conditioner) relay supplies power to the air conditioner system. VCM activates the A/C relay to
supply power to the air conditioner system when the power is turned on or an air conditioner operation request
signal is received.
System Main Relay 1
INFOID:0000000010120524
The system main relay 1 is integrated in the Li-ion battery and controlled by VCM. The system main relay 1
connects and disconnects the high-voltage circuit (+) side and Li-ion battery.
If the pre-charge to the inverter condenser is complete while high voltage power is supplied, VCM activates
the system main relay 1 to supply power from the Li-ion battery to the EV system. Also when charging, VCM
activates the system main relay 1 to supply power from an external charger to the Li-ion battery.
System Main Relay 2
INFOID:0000000010120525
The system main relay 2 is integrated in the Li-ion battery and controlled by VCM. The system main relay 2
connects and disconnects the high-voltage circuit (
−) side and Li-ion battery. When high voltage power is sup-
plied, VCM activates the system main relay 2 to supply power from the Li-ion battery to the EV system. When
charging, power from an external charger is supplied from the system main relay 2 to the Li-ion battery.
Pre-charge Relay
INFOID:0000000010120526
The pre-charge relay is integrated in the Li-ion battery and controlled by VCM. When high voltage power is
required, VCM activates the pre-charge relay before activating the system main relay to prevent abrupt appli-
cation of high voltage.
Reverse Lamp Relay
INFOID:0000000010120527
When VCM receives a reverse range information from the electric shift selector, VCM activates the reverse
lamp relay to turn ON the reverse lamp.
Accelerator Pedal Position Sensor
INFOID:0000000010120528
The accelerator pedal sensor is integrated with the accelerator
pedal. This sensor is a potentiometer that detects the acceleration
pedal stroke, converts it to a voltage signal, and transmits the signal
to VCM. The sensor transmits its signals through dual lines, provid-
ing a minimum driving function even if either line malfunctions.
Upon a POWER ON cycle, VCM learns the fully closed position of
the acceleration pedal from the accelerator pedal position sensor
signal.
Refrigerant Pressure Sensor
INFOID:0000000010120529
The sensor uses an electrostatic volume pressure transducer to convert refrigerant pressure to voltage. VCM
calculates refrigerant pressure based on the voltage and sends a refrigerant pressure signal to the A/C auto
amp. via EV system CAN communication.
PBIB1741E
JSCIA0484GB
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