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DTC
Detecting Item
3A407
Discharging
FET
abnormality
(permanent
failure)
3A410
Internal circuit
communication
error
(permanent
failure)
3A411
Battery
thermistor
shorted
(permanent
failure)
3A412
Battery
thermistor
opened
(permanent
failure)
3A413
Battery
temperature
abnormality
(permanent
failure)
Failure Condition/
Possible Cause
Battery cannot be
discharged due to D-FET
damaged
Damaged battery
Communication failure with
MCU due to AFE
damaged, resulting in
battery not being charged
and discharged
Damaged battery
Line short-circuit failure
due to thermistor
damaged, resulting in
battery not being charged
and discharged
Damaged battery
Line open-circuit failure
due to thermistor
damaged, resulting in
battery not being charged
and discharged
Damaged battery
Damaged battery
thermistor or AFE,
resulting in battery not
being charged and
discharged
Damaged battery
Verification Item (Check in numerical order)
Applicable Part
1. Battery connectors (at
battery pack and power
cable)
2. Battery indicator (single
part)
3. PDU (battery pack
installed on power unit)
4. Battery pack
1. Battery connectors (at
battery pack and power
cable)
2. Battery indicator (single
part)
3. PDU (battery pack
installed on power unit)
4. Battery charger (battery
pack installed)
5. Battery pack
1. Battery connectors (at
battery pack and power
cable)
2. Battery cell temperature
(connected with Dr. H)
3. Battery indicator (single
part)
4. PDU (battery pack
installed on power unit)
5. Battery pack
1. Battery connectors (at
battery pack and power
cable)
2. Battery cell temperature
(connected with Dr. H)
3. Battery indicator (single
part)
4. PDU (battery pack
installed on power unit)
5. Battery pack
1. Battery connectors (at
battery pack and power
cable)
2. Battery cell temperature
(connected with Dr. H)
3. Battery indicator (single
part)
4. PDU (battery pack
installed on power unit)
5. Battery pack
TROUBLESHOOTING
Check for
(abnormal symptom)
Any foreign material,
short-circuit failure, or
other problem in
connector
ERROR (Red) indicator
of battery pack flashes,
pressing check button
Motor operation by
performing the starting
procedure
Replace battery pack
Any foreign material,
short-circuit failure, or
other problem in
connector
ERROR (Red) indicator
of battery pack flashes,
pressing check button
Motor operation by
performing the starting
procedure
Charger does not start
charging
Replace battery pack
Any foreign material,
short-circuit failure, or
other problem in
connector
Cell temperature is
130°C (266°F) or more
ERROR (Red) indicator
of battery pack flashes,
pressing check button
Motor operation by
performing the starting
procedure
Replace battery pack
Any foreign material,
short-circuit failure, or
other problem in
connector
Cell temperature is -35°C
(-31°F) or less
ERROR (Red) indicator
of battery pack flashes,
pressing check button
Motor operation by
performing the starting
procedure
Replace battery pack
Any foreign material,
short-circuit failure, or
other problem in
connector
Temperature difference
between respective cells
is 30°C (86°F) or more
ERROR (Red) indicator
of battery pack flashes,
pressing check button
Motor operation by
performing the starting
procedure
Replace battery pack
4-7
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