heater NISSAN LEAF 2017 1.G Dismantling Guide

No. Component
LocationDescription
Charge
port Under hood Connecting port for EVSE (Electric Vehicle
Supply Equipment) . Two ports are available:
Normal charge and quick charge (if so equipped) .
High-voltage cables Under hood and
undercarriage Orange-colored power cables carry high-voltage
current between each of the high-voltage
components.
Traction Motor Under hood Converts three-phase AC power to drive power
(torque) which propels the vehicle.
Inverter Under hood Converts the DC power stored in the high-voltage
battery to three-phase AC power and controls
motor torque (revolution) by regulating the motor
current.
Electric air
conditioner
compressor Under hood
Air conditioner compressor
Power Delivery
Module (PDM)
• On Board Charger
• DC/DC Converter
• High-voltage junction box (J/B) Under hood
The PDM includes an On Board Charger, DC/DC
converter and high-voltage junction box (J/B) .
The On Board Charger converts single-phase AC
power from a home power outlet to DC power
and increases the voltage in order 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 battery in order to operate the vehicle’s
electric components (headlights, audio system,
etc.) .
The J/B provides electric power from the
high-voltage battery to all high-voltage parts of
the vehicle.
12-volt Battery Under hood A lead-acid battery that supplies power to the
low voltage devices.
Cabin heater Interior (This unit is
installed behind the
instrument panel) This is the electric heat source for the cabin
heater. It heats the interior of the vehicle.
High-voltage battery Undercarriage Stores and outputs DC power (Maximum voltage
398.4V) needed to propel the vehicle.
High-voltage battery
service disconnect Rear seat floor Isolates the battery from the rest of the
high-voltage electrical system.
Brake power supply
backup unit Cargo area (This unit
is installed behind a
trim panel to prevent
access) Power supply backup unit for the brake system.
It supplies power to the brake system if a
malfunction occurs in the 12-volt battery.
DG–10

4. Apply foot brake and press the power switch to turn the system ON. Confirm READY
indicator in instrument cluster turns ON.
5. Check high-voltage battery available charge gauge: a. If remaining energy (1) shows higher than half full (7 of 12 gauge lines lit up) , continue to next step.
b. If remaining energy (2) shows lower than half full (6 of 12 gauge lines lit up) , discharging is
not needed.
6. Turn ON electric devices such as headlamps, cabin heater (set to the highest temperature and
maximum fan speed; do not use AUTO A/C setting) , navigation system and rear window defroster
to discharge the high-voltage battery. Allow approximately 30 minutes for each line on the
available charge gauge to drop. Discharge is complete when the available charge gauge drops to
lower than half full (6 of 12 gauge lines lit up) .
7. Press the power switch to turn the system OFF.
Please contact following number if the high-voltage battery cannot be discharged. • Nissan EV Customer Support: 1-877-664-2738 (Hours of operation are Monday - Friday 7am -
7pm, Saturday 8am - 4:30pm Central time zone)
•
Nissan Consumer Affairs: 1-800-647-7261(US) or 1-800-387-0122 (Canada) (Hours of operation
are 8am - 5pm (Monday - Friday) Eastern, Central and Pacific time zones) LOCK Acc
(OFF) ON AAYIA0036GB
0
1 POWER
Brake
P A 120miles
0.0miles MPH
PM
F miles 1 2
AAYIA0148ZZ
DG–14

4-1 Jump Starting Procedures
1. If the booster battery is in another vehicle (B) , position the two vehicles (A and B) to bring their
12-volt batteries into close proximity to each other.
DO NOT allow the two vehicles to touch.
2. Apply the parking brake.
3. Push the P (Park) position switch to place the vehicle in the P (Park) position.
4. Switch off all unnecessary electrical systems (headlights, heater, air conditioner, etc.) .
5. Place the power switch in the OFF position (if possible) .
If the 12-volt battery is discharged, the power switch cannot be moved from the
OFF position. Connect the jumper cables to the booster vehicle (B) before pushing
the power switch.
6. Ensure vent caps are level and tight.
7. Connect jumper cables in the sequence as illustrated () . • Always connect positive (+) to positive (+) and negative (-) to body ground (for example,
as
illustrated) , not to the 12-volt battery
• Make sure the jumper cables do not touch moving parts in the motor compartment and that the cable clamps do not contact any other metal.
8. Start the engine of the booster vehicle (B) .
9. While the booster vehicle (B) engine is running, turn the power switch ON while pressing the brake pedal in order to place the LEAF in READY mode.
If the system does not start right away, push the power switch to the OFF position and wait
at

least 10 seconds before trying again. AAYIA0160ZZ
DG–34

4. Disconnect the cabin heater harness connector (A) from
the high-voltage battery. Touching high-voltage components without wearing
appropriate

Personal Protective Equipment (PPE) will
cause electrocution.
a. Use the following instructions to disconnect thecabin heater harness connector. To prevent electrocution, cover battery side of high-
voltage

connector with insulated tape. : Insulated tape
5.
Disconnect the high-voltage battery vehicle
communications connector (A) while turning it
counterclockwise. Touching high-voltage components without wearing
appropriate

Personal Protective Equipment (PPE) will
cause electrocution.
A
AAYIA0171ZZ 1
3 4
2
Pull back lock tab
Press release and
pull connector

Disconnect connector
AAYIA0050GB AAYIA0172ZZ
A
AAYIA0167ZZ
DG–44