Nissan Leaf. Manual — part 467
P33E6 CELL CONTROLLER
EVB-151
< DTC/CIRCUIT DIAGNOSIS >
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1. Check the resistance Li-ion battery controller harness connector and bus bar of the determined cell
at step 5.
2. Check the divergence of the resistance and the resistance of other cell harness.
Is the inspection result normal?
YES
>> Replace module within the determined cell at step 5.
NO
>> Repair or replace harness or connectors.
Terminal
Resistance val-
ue
Li-ion battery control-
ler harness connector
Bus bar
Approx. 0
Ω
JSCIA0812GB
EVB-152
< DTC/CIRCUIT DIAGNOSIS >
P33EA BATTERY HEATER RELAY
P33EA BATTERY HEATER RELAY
DTC Logic
INFOID:0000000010121152
DTC DETECTION LOGIC
NOTE:
• The Li-ion battery controller transmits a relay control signal to the heater relay unit and turns ON/OFF the
relay built-in the heater relay unit.
• The heater relay unit turns ON/OFF the built-in relay, according to a relay control signal transmitted from the
Li-ion battery controller, and transmits a relay status signal (the ON/OFF status of the built-in relay) to the Li-
ion battery controller.
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE-1
With CONSULT
1. Select “ACTIVE TEST” of “HV BAT.”
2. Select “HEATER RELAY UNIT.” Touch “START.”
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE-2
With CONSULT
1. Select “Self Diagnostic Result” of “HV BAT”.
2. Check DTC.
Is P33EE detected?
YES
>> Refer to
EVB-152, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010121153
DANGER:
Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of
electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are
handled incorrectly. Be sure to follow the correct work procedures when performing inspection and
maintenance.
WARNING:
• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-
ing inspection or maintenance of high voltage system harnesses and parts.
• The removed service plug must always be carried in a pocket of the responsible worker or placed in
the tool box during the procedure to prevent the plug from being connected by mistake.
• Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses
before beginning work on the high voltage system.
• Never allow workers other than the responsible person to touch the vehicle containing high voltage
parts. To keep others from touching the high voltage parts, these parts must be covered with an insu-
lating sheet except when using them.
• Refer to
EVB-7, "High Voltage Precautions"
.
CAUTION:
Never bring the vehicle into the READY status with the service plug removed unless otherwise
instructed in the Service Manual. A malfunction may occur if this is not observed.
1.
PRECONDITIONING
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
P33EA
BATTERY HEATER RELAY
Li-ion battery controller judges that the status of a relay control
signal transmitted from Li-ion battery controller and that of a
relay status signal transmitted from heater relay unit do not
match.
• Li-ion battery controller
• Heater relay unit
• Harness or connector
P33EA BATTERY HEATER RELAY
EVB-153
< DTC/CIRCUIT DIAGNOSIS >
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WARNING:
Shut off high voltage circuit. Refer to
GI-33, "How to Disconnect High Voltage"
1. Remove Li-ion battery. Refer to
EVB-181, "Removal and Installation"
2. Remove battery pack upper case. Refer to
EVB-191, "BATTERY PACK UPPER CASE : Removal and
.
>> GO TO 2.
2.
CHECK CONTINUITY LI-ION BATTERY CONTROLLER AND HEATER RELAY UNIT
1. Remove service plug switch bracket. Refer to
EVB-204, "BATTERY JUNCTION BOX AND BATTERY
.
2. Disconnect Li-ion battery controller harness connector and heater relay unit harness connector.
3. Check continuity Li-ion battery controller harness connector and heater relay unit harness connector.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair harness or connector.
3.
CHECK CONTINUITY LI-ION BATTERY AND HEATER RELAY UNIT
Check continuity Li-ion battery harness connector and heater relay unit harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair harness or connector.
4.
CHECK CONTINUITY HEATER RELAY UNIT AND LI-ION BATTERY CONTROLLER
Check continuity heater relay unit harness connector and Li-ion battery controller harness connector.
Is the inspection result normal?
YES
>> Replace to shown in the below.
• Li-ion battery controller. Refer to
EVB-201, "LI-ION BATTERY CONTROLLER : Removal and
.
• Heater relay unit. Refer to
EVB-221, "LI-ION BATTERY HEATER RELAY UNIT : Disassembly
.
NO
>> Repair harness or connector.
Lli-ion battery controller
Heater relay unit
Continuity
Connector
Terminal
Connector
Terminal
LB11
20
LB17
3
Existed
18
6
Lli-ion battery
Heater relay unit
Continuity
Connector
Terminal
Connector
Terminal
LB1
31
LB17
1
Existed
Heater relay unit
Li-ion battery controller
Continuity
Connector
Terminal
Connector
Terminal
LB17
4
LB11
8
Existed
8
7
7
5
6
EVB-154
< DTC/CIRCUIT DIAGNOSIS >
P33EB TEMPERATURE SENSOR
P33EB TEMPERATURE SENSOR
DTC Logic
INFOID:0000000010121154
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1. Power switch ON and wait for 10 seconds or more.
2. Select “Self Diagnostic Result” of “HV BAT”.
3. Check DTC.
Is P33EB detected?
YES
>> Refer to
EVB-154, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010121155
DANGER:
Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of
electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are
handled incorrectly. Be sure to follow the correct work procedures when performing inspection and
maintenance.
WARNING:
• Be sure to remove the service plug in order to disconnect the high voltage circuits before perform-
ing inspection or maintenance of high voltage system harnesses and parts.
• The removed service plug must always be carried in a pocket of the responsible worker or placed in
the tool box during the procedure to prevent the plug from being connected by mistake.
• Be sure to wear insulating protective equipment consisting of glove, shoes, face shield and glasses
before beginning work on the high voltage system.
• Never allow workers other than the responsible person to touch the vehicle containing high voltage
parts. To keep others from touching the high voltage parts, these parts must be covered with an insu-
lating sheet except when using them.
• Refer to
EVB-7, "High Voltage Precautions"
.
CAUTION:
Never bring the vehicle into the READY status with the service plug removed unless otherwise
instructed in the Service Manual. A malfunction may occur if this is not observed.
1.
PRECONDITIONING
WARNING:
Disconnect the high voltage. Refer to
GI-33, "How to Disconnect High Voltage"
1. Remove Li-ion battery. Refer to
EVB-181, "Removal and Installation"
2. Remove battery pack upper case. Refer to
EVB-191, "BATTERY PACK UPPER CASE : Removal and
.
>> GO TO 2.
2.
CHECK BATTERY TEMPERATURE SENSOR
EVB-155, "Component Inspection"
.
Is the inspection result normal?
YES
>> Replace all battery temperature sensor.
NO
>> Replace applicable battery temperature sensor.
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
P33EB
TEMPERATURE SENSOR
Deviation in characteristics of battery temperature sensor
1, 2 or 4.
Battery temperature sensor
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