Nissan Leaf. Manual - part 447

DIAGNOSIS AND REPAIR WORK FLOW

EVB-71

< BASIC INSPECTION >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

Question Sheet

Customer name
MR/MS

Incident Date

VIN

Model & Year

In Service Date

Trans.

Mileage

km/mile

Symptoms

†

 Does not to READY

†

 EV system warning lamp is on

†

 Power limitation indicator 

lamp is on

†

 Water leak*

†

 Noise*

†

 Vibration*

†

 Shock*

†

 Gear noise*

†

 Non driving*

†

 Poor acceleration*

†

 Poor torque*

†

 Radio noise*

†

 Does not charge

†

 Other*

*: If applied, enter in detail

Detailed symptom

Onomatopoeia

Frequency

†

 All the time

†

 Once

†

 Sometimes (

times a day)

†

 Other

Charging condition

†

 Full

†

 Medium

†

 Low

Weather 
conditions

†

 Not affected

Weather

†

 Fine

†

 Clouding

†

 Raining

†

 Snowing

†

 Other (

)

Temp.

†

 Hot

†

 Warm

†

 Cool

†

 Cold

†

 Temp. [Approx.

°C 

(

°F)]

Humidity

†

 High

†

 Middle

†

 Low

†

 Humidity (Approx.

%)

Road conditions

†

 Not affected

†

 In town

†

 Freeway

†

 Off road (Up / Down)

†

 Deplorable 

road

†

 Flat road

†

 While turning (Right / Left)

†

 Bump

†

 Other

Shift position

†

 Not affected

†

 P position

†

 R position

†

 N position

†

 D position

†

 ECO mode

Driving conditions

†

 Not affected

†

 Power switch ON 

→ OFF

†

 Power switch OFF 

→ ON

†

 READY (stop the vehicle)

†

 While cruis-

ing

†

 While decel-

erating

†

 Just before 

stopping

†

 Just after stop-

ping

†

 D position (stop the vehicle)

†

 While recharging

†

 Other

†

 Vehicle speed [

km/h (

MPH)]

†

 Accelerator pedal (

/ 8)

†

 Battery level (Low / Middle / High)

Moments when mal-
function disappears

†

 Disappears while driving

†

 Disappears when stopped

†

 Disappears with select oper-

ation

†

 Disappears when power switch 

is pushed OFF

†

 Disappears when battery charge is 

stopped

†

 Does not disappear

†

 Other

Other

EVB-72

< BASIC INSPECTION >

ADDITIONAL SERVICE WHEN REPLACING LI-ION BATTERY CONTROLLER

ADDITIONAL SERVICE WHEN REPLACING LI-ION BATTERY CONTROL-
LER

Description

INFOID:0000000010121050

When a Li-ion Battery Controller (LBC) or Li-ion battery (battery pack) is replaced, it is necessary to save the

battery information stored in LBC to the new LBC.

Whenever any of the following work is performed, make sure to perform the above operation.

• Replace LBC

Work Procedure

INFOID:0000000010121051

1.

SAVE THE LI-ION BATTERY CONTROLLER (LBC) INTERNAL INFORMATION

With CONSULT

1. Select “SAVE BATTERY INFORMATION DATA” in “WORK SUPPOTRT” mode.

2. Save the LBC internal information.

>> GO TO 2.

2.

REPLACE LI-ION BATTERY OR LBC

Replace Li-ion battery or LBC. Refer to 

EVB-181, "Removal and Installation"

 (Li-ion battery) or 

EVB-201, "LI-

ION BATTERY CONTROLLER : Removal and Installation"

 (LBC).

>> GO TO 3.

3.

WRITE THE LBC INTERNAL INFORMATION

With CONSULT

1. Select “WRITE BATTERY INFORMATION DATA” in “WORK SUPPOTRT” mode.

2. Write the information that has been read out before LBC replacement.

>> GO TO 4.

4.

WRITE THE LBC INTERNAL INFORMATION TO VCM

Refer to “Li-ion Battery Registration Operation Manual.

>> END

MODULE CHARGE BALANCE

EVB-73

< BASIC INSPECTION >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

MODULE CHARGE BALANCE

Description

INFOID:0000000010121052

If a malfunction (e.g. abnormal voltage) occurs in a Li-ion battery cell, the module which includes the malfunc-

tioning cell must be replaced. When replacing a module with a new one, its voltage is required to be adjusted

to the adjusting voltage calculated from the maximum cell voltage of normal cells.

Work Procedure

INFOID:0000000010121053

NOTE:

Voltage adjustment under low temperature conditions may require a long time. To prevent this from occurring,

it is advisable to adjust voltage under room temperature conditions [20

°C ± 10°C (68°F ±18°F)].

1.

CHECK ADJUSTMENT VOLTAGE VALUE

With CONSULT

1. Power switch ON.

2. Select “DATA MONITOR”of “HV BAT”.

3. Check “MAXIMUM CELL VOLTAGE”.

4. Double the “MAXIMUM CELL VOLTAGE” and use that value as the module adjustment value.

Example: 3.925 V (MAXIMUM CELL VOLTAGE) 

× 2 = 7.850 V (Adjustment voltage value)

>> GO TO 2.

2.

CHECK MODULE VOLTAGE

CAUTION:

For details on the module charge balancer operation, refer to the adjuster operation manual.

1. Set the new module to the module charge balancer.

2. Measure module voltage and compare it with “adjustment voltage value” confirmed in Step1.

Module voltage is lower than adjustment voltage value>>GO TO 4.

Module voltage is higher than adjustment voltage value>>GO TO 3.

3.

DISCAHRGE OF MODULE VOLTAGE

CAUTION:

For details on the module charge balancer operation, refer to the adjuster operation manual.

Discharge the module to 5.0 V using module charge balancer.

>> GO TO 4.

4.

ADJUST VOLTAGE WITH A MODULE CHARGE BALANCER

CAUTION:

For details on the module charge balancer operation, refer to the adjuster operation manual.

1. Enter “adjustment voltage value” into module charge balancer.

2. Start the voltage adjustment.

>> After module voltage adjustment, GO TO 5.

5.

CHECK MODULE VOLTAGE

1. Remove the module from the module charge balancer.

2. Using a circuit tester, check that the module voltage is within the specified range.

Adjustment voltage value : MAXIMUM CELL VOLTAGE

× 2

Discharge voltage

: 5.0 V

Adjustment voltage value : MAXIMUM CELL VOLTAGE

× 2

EVB-74

< BASIC INSPECTION >

MODULE CHARGE BALANCE

>> GO TO 6.

6.

CHECK CELL VOLTAGE

With CONSULT

1. After adjusting the voltage, install the module to the vehicle.

2. Select “DATA MONITOR” of “HV BAT”.

3. Check “CELL VOLTAGE” of install module.

4. Check that the difference from the “MAXIMUM CELL VOLTAGE” confirmed in Step1 is within the specified

range.

>> WORK END

Standard

: Adjustment voltage value 

± 10 mV

Standard

: MAXIMUM CELL VOLTAGE 

± 33 mV