Nissan Leaf. Manual - part 456

 

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Nissan Leaf. Manual - part 456

 

 

P31A7 CAN ERROR INV/MC

EVB-107

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

P31A7 CAN ERROR INV/MC

DTC Logic

INFOID:0000000010121107

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 P31A7 detected?

YES

>> Refer to 

EVB-107, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121108

When this DTC is detected, replace traction motor inverter. Refer to 

TMS-103, "Exploded View"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P31A7

CAN ERROR INV/MC

If the CAN data from traction motor inverter has not 
change from the value which was previously received.

Traction motor inverter

EVB-108

< DTC/CIRCUIT DIAGNOSIS >

P3302-P330D CELL OVER VOLTAGE

P3302-P330D CELL OVER VOLTAGE

DTC Logic

INFOID:0000000010121109

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-108, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121110

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

P3302

CELL OVER VOLTAGE MODULE1

When cell voltage exceeds the allowable 
working voltage range.

• Overcharge caused by traction 

motor inverter/VCM malfunc-
tion

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

P3303

CELL OVER VOLTAGE MODULE2

P3304

CELL OVER VOLTAGE MODULE3

P3305

CELL OVER VOLTAGE MODULE4

P3306

CELL OVER VOLTAGE MODULE5

P3307

CELL OVER VOLTAGE MODULE6

P3308

CELL OVER VOLTAGE MODULE7

P3309

CELL OVER VOLTAGE MODULE8

P330A

CELL OVER VOLTAGE MODULE9

P330B

CELL OVER VOLTAGE MODULE10

P330C

CELL OVER VOLTAGE MODULE11

P330D

CELL OVER VOLTAGE MODULE12

P3302-P330D CELL OVER VOLTAGE

EVB-109

< DTC/CIRCUIT DIAGNOSIS >

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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. 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-110

< DTC/CIRCUIT DIAGNOSIS >

P3302-P330D CELL OVER VOLTAGE

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-111, "Component Inspection"

.

Is the inspection result normal?

DTC

Module 

No.

Bus bar

Li-ion battery controller

Continuity

Connector

Terminal

P3302

1

LB13

33

Existed

50

34

P3303

2

LB13

34

Existed

51

35

P3304

3

LB13

35

Existed

52

36

P3305

4

LB13

36

Existed

53

37

P3306

5

LB13

37

Existed

54

38

P3307

6

LB13

38

Existed

55

39

P3308

7

LB13

39

Existed

56

40

P3309

8

LB13

40

Existed

57

42

P330A

9

LB13

42

Existed

58

43

P330B

10

LB13

43

Existed

59

44

P330C

11

LB13

44

Existed

60

45

P330D

12

LB13

45

Existed

61

46

 

 

 

 

 

 

 

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