Nissan Leaf. Instruction — part 447
DIAGNOSIS AND REPAIR WORK FLOW
EVB-71
< BASIC INSPECTION >
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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
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 Instruction.
>> END
MODULE CHARGE BALANCE
EVB-73
< BASIC INSPECTION >
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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 instruction.
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 instruction.
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 instruction.
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
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