Nissan Leaf. Manual - part 437

SYSTEM

EVB-31

< SYSTEM DESCRIPTION >

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: Vehicle front

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EVB-32

< SYSTEM DESCRIPTION >

HANDLING PRECAUTION

HANDLING PRECAUTION

EV Battery System

INFOID:0000000010121042

• To improve the Li-ion battery life, never perform quick charge heavily.

• Use the method of nighttime normal charge or timer-controlled charge.

• Never perform rapid acceleration/deceleration.

• Never place EV battery in an area exposed to direct sunlight or under high temperature conditions.

PRECAUTIONS FOR STORAGE OF THE LI-ION BATTERY

• Apply insulating tape to the service plug and high voltage harness connector, and protect the terminals so

that nothing contacts them.

• Store in a well-ventilated location that is not exposed to direct sunlight.

(Storing outdoors or unprotected is prohibited.)

• Never set directly on the floor.

• Lay an anti-static rubber sheet underneath the battery.

• Never invert the battery.

• Never stack batteries.

• Cover with an anti-static cover sheet.

• Put a caution display stating "CAUTION! HIGH VOLTAGE" on the insulated cover sheet.

• Put identification display showing the name of person in charge on the insulated cover sheet.

• Never allow water to contact the battery.

• Prevent other objects from falling onto the battery.

DIAGNOSIS SYSTEM (LBC)

EVB-33

< SYSTEM DESCRIPTION >

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DIAGNOSIS SYSTEM (LBC)

CONSULT Function

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APPLICATION ITEM

CONSULT performs the following functions via CAN communication with Li-ion battery controller (LBC).

*: The following diagnosis information is cleared when the VCM memory is erased.
• Diagnostic trouble codes
• Freeze frame data

ECU IDENTIFICATION

Part number of LBC can be checked.

SELF-DIAGNOSTIC RESULTS

Self Diagnostic Item

Regarding items of DTC, refer to 

EVB-45, "DTC Index"

.

How to Erase DTC

1. Select “HV BAT”with CONSULT.

2. “SELF-DIAGNOSTIC RESULTS”.

3. Touch “ERASE”. (DTC in LBC will be erased.)

FREEZE FRAME DATA (FFD)

The following vehicle status is recorded when DTC is detected and is displayed on CONSULT.

DATA MONITOR

NOTE:

Item

Function

ECU Identification

LBC parts number can be read.

Self-diagnostic results

Self-diagnostic results and freeze frame data can be read and erased quickly.*

Data Monitor

Input/Output data in LBC can be read.

Active Test

Activates the actuator via LBC.

Work Support

This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on the CONSULT.

CAN Diagnosis

Displays the CAN diagnosis results.

CAN Diagnosis Support Mon-
itor

Displays the CAN communication status.

Monitored item (Unit)

Remarks

DTC

Displays the DTC which caused FFD memory

BATT ELECTRIC CURRENT

A

Displays the Li-ion battery current value

12V BATTERY VOLTAGE

mV

Displays 12V battery power supply voltage

IR SEN SHORT PULSE

mV

Displays the maximum to minimum difference of voltage magnitude of the on-
board isolation resistance monitoring system

SERVICE PLUG INTERLOCK

OPEN /
CLOSE

Displays the OPEN/CLOSE state of the service plug

CELL VOLTAGE 01 - 96

mV

Displays each cell voltage

TOTAL BATTERY VOLTAGE

V

Displays the total voltage of the Li-ion battery

BATTERY TEMPERATURE 1

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 1

BATTERY TEMPERATURE 2

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 2

BATTERY TEMPERATURE 4

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 4

EVB-34

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (LBC)

The following table includes information (items) inapplicable to this vehicle. For information (items) applicable

to this vehicle, refer to CONSULT display items.

ACTIVE TEST

WORK SUPPORT

Monitored item

Unit

Remark

BATT ELECTRIC CURRENT

A

Displays the Li-ion battery current value

12V BATTERY VOLTAGE

mV

Displays 12V battery power supply voltage

IR SEN SHORT PULSE

mV

Displays the maximum to minimum difference of voltage magnitude of the on-
board isolation resistance monitoring system

SERVICE PLUG INTERLOCK

OPEN /
CLOSE

Displays the OPEN/CLOSE state of the service plug

CELL VOLTAGE 01 - 96

mV

Displays each cell voltage

TOTAL BATTERY VOLTAGE

V

Displays the total voltage of the Li-ion battery

MAXIMUM CELL VOLTAGE

mV

Displays the maximum cell voltage value

MINIMUM CELL VOLTAGE

mV

Displays the minimum cell voltage value

BATTERY TEMPERATURE 1

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 1

BATTERY TEMPERATURE 2

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 2

BATTERY TEMPERATURE 4

°C

Displays the temperature calculated with a signal voltage from battery temper-
ature 4

Test item

Operation 

item

Operation status

HEATER RELAY UNIT

On

Turns ON the relay built into the heater relay unit to supply high voltage power to the Li-ion 
battery heater.

Off

Turns OFF the relay built into the heater relay unit to stop high voltage power supply to the 
Li-ion battery heater.

Work item

Description

Usage

SAVE BATTERY INFORMATION 
DATA

Data saved in LBC is stored in CONSULT.

When Li-ion battery and LBC are 
replaced.

WRITE BATTERY INFORMA-
TION DATA

The CONSULT-stored data can be written in LBC.

When Li-ion battery and LBC are 
replaced.

CELL VOLTAGE LOSS INSPEC-
TION

This inspection identifies a cell of which cell voltage is on 
the decrease. If identified, this type of cell may be judged as 
an abnormal cell, unless it is replaced.

When checking voltage of all 
cells.