Nissan Leaf. Manual - part 461

P3381-P338C CELL OVER DISCHARGE

EVB-127

< DTC/CIRCUIT DIAGNOSIS >

D

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1. Perform “All DTC Reading” with CONSULT.

2. Check systems other than “HV BAT” if any DTC is detected. 
Is any DTC detected?

YES

>> After performing trouble diagnosis of detected DTC, GO TO 2.

NO

>> GO TO 2.

2.

PRECONDITIONING

WARNING:

Disconnect 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

Installation"

, 

>> GO TO 3.

3.

CHECK HARNESS BETWEEN MODULE AND LI-ION BATTERY CONTROLLER

1. Disconnect voltage detection terminal of bus bar and Li-ion battery controller harness connector.
2. Refer to below table and check the continuity between Li-ion battery controller   and corresponding bus

bar .

JSCIA0812GB

EVB-128

< DTC/CIRCUIT DIAGNOSIS >

P3381-P338C CELL OVER DISCHARGE

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-129, "Component Inspection"

.

Is the inspection result normal?

DTC

Module 

No.

Bus bar

Li-ion battery controller

Continuity

Connector

Terminal

P3381

13

LB13

46

Existed

62

47

P3382

14

LB13

47

Existed

63

48

P3383

15

LB13

48

Existed

LB14

77

65

P3384

16

LB14

65

Existed

78

66

P3385

17

LB14

66

Existed

80

69

P3386

18

LB14

69

Existed

81

70

P3387

19

LB14

70

Existed

82

71

P3388

20

LB14

71

Existed

83

72

P3389

21

LB14

72

Existed

84

73

P338A

22

LB14

73

Existed

85

74

P338B

23

LB14

74

Existed

86

75

P338C

24

LB14

75

Existed

87

76

P3381-P338C CELL OVER DISCHARGE

EVB-129

< DTC/CIRCUIT DIAGNOSIS >

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YES

>> Replace Li-ion battery controller. Refer to 

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

and Installation"

.

NO

>> Replace corresponding module. Refer to 

EVB-248, "REAR MODULE STACK : Disassembly and

Assembly"

.

Component Inspection

INFOID:0000000010121126

1.

CHECK MODULE VOLTAGE

Check voltage of module.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace module. Refer to 

EVB-248, "REAR MODULE

STACK : Disassembly and Assembly"

.

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

Terminals

Voltage

(Approx.)

(+)

(-)

Module

Positive terminal (Red)

Negative terminal (Black)

5.0 - 8.5 V

JSCIA0338ZZ

EVB-130

< DTC/CIRCUIT DIAGNOSIS >

P338D-P3398 CELL OVER DISCHARGE

P338D-P3398 CELL OVER DISCHARGE

DTC Logic

INFOID:0000000010121127

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 any DTC detected?

YES

>> Refer to 

EVB-133, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121128

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

With CONSULT

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P338D CELL OVER DISCHARGE MODULE25

When cell voltage lowers below the allowable 
working voltage range.

• Overcharge caused by trac-

tion motor inverter/VCM mal-
function

• Module
• Li-ion battery controller
• Bus bar
• Harness or connector

P338E CELL OVER DISCHARGE MODULE26

P338F

CELL OVER DISCHARGE MODULE27

P3390

CELL OVER DISCHARGE MODULE28

P3391

CELL OVER DISCHARGE MODULE29

P3392

CELL OVER DISCHARGE MODULE30

P3393

CELL OVER DISCHARGE MODULE31

P3394

CELL OVER DISCHARGE MODULE32

P3395

CELL OVER DISCHARGE MODULE33

P3396

CELL OVER DISCHARGE MODULE34

P3397

CELL OVER DISCHARGE MODULE35

P3398

CELL OVER DISCHARGE MODULE36