brake 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

3. Preparation for Dismantling
• Failure to properly shut down the high-voltage electrical system before the
Dismantling Procedures are performed will result in serious injury or death from
electrical shock. To prevent serious injury or death, NEVER touch high-voltage
harnesses or components without always wearing appropriate Personal Protective
Equipment (PPE) .
• If it is necessary to touch any of the high-voltage harnesses or components you
must
always wear appropriate PPE to avoid electrical shock. Shut down the high-
voltage system by following the steps outlined in 3-4 High-voltage System Shut-Down
Procedures

(DG–16) . Wait at least ten (10) minutes for complete discharge of the high-
voltage

capacitor after the high-voltage system has been shut down. • NEVER assume the LEAF is shut OFF simply because it is quiet.
• If it becomes necessary for the dismantler to leave the vehicle, place a “DANGER” sign
(for
example, refer to 4-3 Storing the Vehicle (DG–38)) on the vehicle to alert other
people

that the vehicle contains a high-voltage battery.
• If the READY indicator or charging indicator are ON, the high-voltage system
is

active.
• If possible, be sure to verify that the READY indicator on the instrument cluster
is

OFF and the high-voltage system is stopped.
3-1 Discharging Procedures Do not perform this procedure if the high-voltage battery is damaged. If you are unsure of
battery

damage, use extreme caution and always wear appropriate Personal Protective
Equipment (PPE) when working on high-voltage components.
High-voltage battery discharging must take place before dismantling. Sufficient discharging can be
achieved by following these steps. 1. Place the selector lever into the Park (P) position
2. Apply the parking brake.
3. Set wheel chocks to ensure the vehicle is completely immobilized.
DG–13

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
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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

10. After starting the EV system, carefully disconnect the negative cable and then the positive cable
() . Keep the EV system on for over twenty (20) minutes to charge the 12-volt
battery.
11. If necessary, connect the vehicle to a charging station or EVSE (Electric Vehicle Supply Equipment) to charge the high-voltage battery. The vehicle cannot be driven unless the
high-voltage battery is charged.
NOTE:
If it is not possible to turn the LEAF system ON by following this procedure, it is
recommended you contact a NISSAN certified LEAF dealer immediately.
4-2 P (Park) Position Release Procedure
If you need to release the vehicle from the P (Park) position, proceed as follows. When power switch is
turned OFF or 12-volt battery is low, LEAF automatically shifts to P position.
NOTE: This procedure requires two (2) people.
1. To start the EV system with a booster battery, refer to 4. Jump Starting (DG–33).
2.

Turn power switch ON by pushing the power switch 2 times without pressing brake pedal.
3. Confirm parking brake is applied.
4. Close all doors and press and hold the brake pedal.
5. Place the selector lever in the N (Neutral) position.
6. Remove the following 2 fuses:
• F/L 40A PBW MTR (under hood fuse and relay box)
• METER 1 10A (in the cabin fuse box)
DG–35

Cabin Fuse Box Location
NO
TE:
Insert a screwdriver wrapped with a protective cloth (A) into the slit (1) . Pull to remove the fuse
box cover (2) . Remove the fuse with the fuse puller (3) .
7. Release the parking brake.
8. Turn the power switch OFF.
9. Release brake pedal. To avoid possible personal injury or vehicle damage, use wheel chocks or take appropriate
steps

to prevent the vehicle from rolling freely.
Be sure to firmly position wheel chocks when P (Park) position is manually released.
4-2.1 Reset Procedure 1. Install the 2 fuses removed previously.
2. Turn the power switch ON and wait 5 seconds without pressing the brake pedal. Ensure selectorlever is in the N (neutral) position.
3. If 12-volt battery is low voltage, please charge with battery charger.
4. Turn the power switch OFF and wait 5 seconds. UP
METER 1
10A
11 3
2
A
AAYIA0151ZZ
DG–37