Nissan Leaf. Manual - part 463

P3399-P33A4 CELL OVER DISCHARGE

EVB-135

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair Harness or connector.

4.

CHECK MODULE VOLTAGE

Check voltage of corresponding module. Refer to 

EVB-135, "Component Inspection"

.

Is the inspection result normal?

YES

>> Replace Li-ion battery controller. Refer to 

EVB-201, "LI-ION BATTERY CONTROLLER : Removal

and Installation"

.

NO

>> Replace corresponding module. Refer to 

EVB-233, "FRONT MODULE STACK : Disassembly and

Assembly"

.

Component Inspection

INFOID:0000000010121132

1.

CHECK MODULE VOLTAGE

Check voltage of module.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace module. Refer to 

EVB-233, "FRONT MODULE

STACK : Disassembly and Assembly"

.

P33A1

45

LB7

36

LB16

131

Existed

35

140

47

132

P33A2

46

LB7

47

LB16

132

Existed

33

141

45

133

P33A3

47

LB7

45

LB16

133

Existed

46

142

34

134

P33A4

48

LB7

34

LB16

134

Existed

48

143

49

135

DTC

Module 

No.

Module

Li-ion battery controller

Continuity

Connector

Terminal

Connector

Terminal

: Positive terminal (Red)
: Negative terminal (Black)

Terminals

Voltage

(Approx.)

(+)

(-)

Module

Positive terminal (Red)

Negative terminal (Black)

5.0 - 8.5 V

JSCIA0338ZZ

EVB-136

< DTC/CIRCUIT DIAGNOSIS >

P33D4 BATTERY DETERIORATION DIAGNOSIS

P33D4 BATTERY DETERIORATION DIAGNOSIS

DTC Logic

INFOID:0000000010121133

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 P33D4 detected?

YES

>> Refer to 

EVB-136, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121134

When this DTC is detected, replace Li-ion battery. Refer to 

EVB-181, "Removal and Installation"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P33D4

BATTERY INTERNAL RESIS-
TANCE DIAG

When the battery charge lowers.
(The internal resistance of the battery increases.)

Li-ion battery

P33D5 CURRENT SENSOR

EVB-137

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

P33D5 CURRENT SENSOR

DTC Logic

INFOID:0000000010121135

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 P33D5 detected?

YES

>> Refer to 

EVB-137, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121136

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.

CHECK SELF-DIAGNOSIS RESULTS OF VCM

With CONSULT

1. Select “Self Diagnostic Result” mode of “EV/HEV” using CONSULT.

2. Check to see if “P0AA0”, “P0AA1” or “P0AA4” is detected.
Is any DTC detected?

YES

>> Perform diagnosis on the detected DTC. Refer to 

EVB-45, "DTC Index"

.

NO

>> GO TO 2.

2.

PRECONDITIONING

WARNING:

Disconnect high voltage. Refer to 

GI-33, "How to Disconnect High Voltage"

.

1. Remove Li-ion battery. Refer to 

EVB-181, "Removal and Installation"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P33D5

CURRENT SENSOR

Deviation in characteristics of battery current sensor sig-
nal voltage.
(Battery current sensor signal voltage is too high or too 
low.)

• Li-ion battery controller
• Current sensor
• System main relay
• Harness or connector

EVB-138

< DTC/CIRCUIT DIAGNOSIS >

P33D5 CURRENT SENSOR

2. Remove battery pack upper case. Refer to 

EVB-191, "BATTERY PACK UPPER CASE : Removal and

Installation"

.

>> GO TO 3.

3.

CHECK CONNECTION STATUS

Check connection status of Li-ion battery controller harness connector and current sensor harness connector.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Recover the connection status.

4.

CHECK HARNESS BETWEEN CURRENT SENSOR AND LI-ION BATTERY CONTROLLER

Check continuity between current sensor harness connector and Li-ion battery controller harness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair Harness or connector.

5.

CHECK CURRENT SENSOR

Check resistance of current sensor.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace current sensor.

6.

CHECK LI-ION BATTERY CONTROLLER

Check resistance of Li-ion battery controller.

Is the inspection result normal?

YES

>> Replace current sensor. Refer to 

EVB-206, "BATTERY JUNCTION BOX AND BATTERY HAR-

NESS : Disassembly and Assembly"

.

NO

>> Replace Li-ion battery controller. Refer to 

EVB-201, "LI-ION BATTERY CONTROLLER : Removal

and Installation"

.

Current sensor

Li-ion battery controller

Continuity

Connector

Terminal

Connector

Terminal

LB5

S

LB11

10

Exited

V

9

G

15

Current sensor

Resistance val-

ue

Connector

Terminal

Terminal

LB5

S

G

1 k

Ω–10 MΩ

V

G

Li-ion battery controller

Resistance val-

ue

Connector

Terminal

Terminal

LB11

10

15

Approx. 4.7 k

Ω