Nissan Leaf. Manual - part 449

P3031-P303C CELL CONTROLLER ASIC

EVB-79

< DTC/CIRCUIT DIAGNOSIS >

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P3031-P303C CELL CONTROLLER ASIC

DTC Logic

INFOID:0000000010121063

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-79, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121064

1.

PERFORM THE SELF-DIAGNOSIS OF LI-ION BATTERY CONTROLLER

With CONSULT

1. Select “Self Diagnostic Result” of “HV BAT”.

2. Check to see if “P3030” is detected simultaneously with “P3031 -P303C”.
Is P3030 detected?

YES

>> Perform diagnosis on the detected P3030. Refer to 

EVB-78, "Diagnosis Procedure"

.

NO

>> Replace Li-ion battery controller. Refer to 

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

and Installation"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P3031

CELL CONT ASIC1

A malfunction occurs with the communication function 
in Li-ion battery controller.

Li-ion battery controller

P3032

CELL CONT ASIC2

P3033

CELL CONT ASIC3

P3034

CELL CONT ASIC4

P3035

CELL CONT ASIC5

P3036

CELL CONT ASIC6

P3037

CELL CONT ASIC7

P3038

CELL CONT ASIC8

P3039

CELL CONT ASIC9

P303A

CELL CONT ASIC10

P303B

CELL CONT ASIC11

P303C

CELL CONT ASIC12

EVB-80

< DTC/CIRCUIT DIAGNOSIS >

P303D-P3048 CELL CONTROLLER ASIC

P303D-P3048 CELL CONTROLLER ASIC

DTC Logic

INFOID:0000000010121065

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-80, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121066

1.

PERFORM THE SELF-DIAGNOSIS OF LI-ION BATTERY CONTROLLER

With CONSULT

1. Select “Self Diagnostic Result” of “HV BAT”.

2. Check to see if “P3030” is detected simultaneously with “P303D” -“P3048”.
Is P3030 detected?

YES

>> Perform diagnosis on the detected P3030. Refer to 

EVB-78, "Diagnosis Procedure"

.

NO

>> Replace Li-ion battery controller. Refer to 

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

and Installation"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P303D

CELL CONT ASIC13

A malfunction occurs with the communication function 
in Li-ion battery controller.

Li-ion battery controller

P303E

CELL CONT ASIC14

P303F

CELL CONT ASIC15

P3040

CELL CONT ASIC16

P3041

CELL CONT ASIC17

P3042

CELL CONT ASIC18

P3043

CELL CONT ASIC19

P3044

CELL CONT ASIC20

P3045

CELL CONT ASIC21

P3046

CELL CONT ASIC22

P3047

CELL CONT ASIC23

P3048

CELL CONT ASIC24

P3049-P3054 CELL CONTROLLER ASIC VOLTAGE

EVB-81

< DTC/CIRCUIT DIAGNOSIS >

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P3049-P3054 CELL CONTROLLER ASIC VOLTAGE

DTC Logic

INFOID:0000000010121067

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-81, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121068

1.

PERFORM THE SELF-DIAGNOSIS OF LI-ION BATTERY CONTROLLER

With CONSULT

1. Select “Self Diagnostic Result” of “HV BAT”.

2. Check DTC.
Is any DTC detected?

YES-1 >> “P3302” - “P3331” are detected simultaneously.

• When “P3302” - “P330D” are detected simultaneously, perform the diagnosis procedure of

“P3302” - “P330D”. Refer to 

EVB-108, "Diagnosis Procedure"

.

• When “P330E” - “P3319” are detected simultaneously, perform the diagnosis procedure of

“P330E” - “P3319”. Refer to 

EVB-112, "Diagnosis Procedure"

.

• When “P331A” - “P3325” are detected simultaneously, perform the diagnosis procedure of

“P331A” - “P3325”. Refer to 

EVB-116, "Diagnosis Procedure"

.

• When “P3326” - “P3331” are detected simultaneously, perform the diagnosis procedure of

“P3326” - “P3331”. Refer to 

EVB-119, "Diagnosis Procedure"

.

YES-2 >> “P3375” - “P33A4” are detected simultaneously.

• When “P3375” - “P3380” are detected simultaneously, perform the diagnosis procedure of

“P3375” - “P3380”. Refer to 

EVB-122, "Diagnosis Procedure"

.

• When “P3381” - “P338C” are detected simultaneously, perform the diagnosis procedure of

“P3381” - “P338C”. Refer to 

EVB-126, "Diagnosis Procedure"

.

• When “P338D” - “P3398” are detected simultaneously, perform the diagnosis procedure of

“P338D” - “P3398”. Refer to 

EVB-130, "Diagnosis Procedure"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P3049

CELL CONT ASIC1 VOLT

The A/D converter in Li-ion battery controller is malfunc-
tioning.

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

P304A

CELL CONT ASIC2 VOLT

P304B

CELL CONT ASIC3 VOLT

P304C

CELL CONT ASIC4 VOLT

P304D

CELL CONT ASIC5 VOLT

P304E

CELL CONT ASIC6 VOLT

P304F

CELL CONT ASIC7 VOLT

P3050

CELL CONT ASIC8 VOLT

P3051

CELL CONT ASIC9 VOLT

P3052

CELL CONT ASIC10 VOLT

P3053

CELL CONT ASIC11 VOLT

P3054

CELL CONT ASIC12 VOLT

EVB-82

< DTC/CIRCUIT DIAGNOSIS >

P3049-P3054 CELL CONTROLLER ASIC VOLTAGE

• When “P3399” - “P33A4” are detected simultaneously, perform the diagnosis procedure of

“P3399” - “P33A4”. Refer to 

EVB-133, "Diagnosis Procedure"

.

NO

>> When only “P3049” - “P3054” are detected, replace Li-ion battery controller. Refer to 

EVB-201,

"LI-ION BATTERY CONTROLLER : Removal and Installation"

.