Nissan Leaf. Manual - part 448

P0A0D HV SYSTEM INTERLOCK ERROR

EVB-75

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

DTC/CIRCUIT DIAGNOSIS

P0A0D HV SYSTEM INTERLOCK ERROR

DTC Logic

INFOID:0000000010121056

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 P0A1F detected?

YES

>> Refer to 

EVB-75, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121057

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

Installation"

.

>> GO TO 2.

2.

CHECK LI-ION BATTERY INTERLOCK DETECTIONG CIRCUIT FOR SHORT-1

1. Disconnect Li-ion battery controller (LBC) harness connector.

2. Disconnect interlock detecting switch (high voltage harness connector) harness connector.

3. Check the continuity between Li-ion battery controller harness connector and ground.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P0A0D

HV SYSTEM INTERLOCK 
ERROR

Self diagnosis program of Li-ion battery controller de-
tects a malfunction in the CPU.

Li-ion battery controller

EVB-76

< DTC/CIRCUIT DIAGNOSIS >

P0A0D HV SYSTEM INTERLOCK ERROR

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace Li-ion battery vehicle communication harness.

3.

CHECK LI-ION BATTERY INTERLOCK DETECTIONG CIRCUIT FOR SHORT-2

1. Disconnect interlock detecting switch (service plug) harness connector.

2. Check the continuity between Li-ion battery controller harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace Li-ion battery vehicle communication harness.

4.

CHECK INTERLOCK DETECTIONG SWITCH (SERVICE PLUG)

Refer to 

EVB-76, "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 service plug.

Component Inspection

INFOID:0000000010121058

1.

CHECK INTERLOCK DETECTIONG SWITCH (SERVICE PLUG)

Check the continuity between terminals in the figure.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace service plug.

LBC

—

Continuity

Connector

Terminal

LB11

8

Ground

Not existed

LBC

—

Continuity

Connector

Terminal

LB11

6

Ground

Not existed

Value:

Approx. 0 

Ω

JPCIA0347ZZ

P0A1F BATTERY ENERGY CONTROL MODULE

EVB-77

< DTC/CIRCUIT DIAGNOSIS >

D

E

F

G

H

I

J

K

L

M

A

B

EVB

N

O

P

P0A1F BATTERY ENERGY CONTROL MODULE

DTC Logic

INFOID:0000000010121059

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 P0A1F detected?

YES

>> Refer to 

EVB-77, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121060

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

EVB-201, "LI-ION BATTERY CONTROL-

LER : Removal and Installation"

.

DTC

Trouble diagnosis name

DTC detecting condition

Possible causes

P0A1F

BATTERY ENERGY CON-
TROL MODULE

Self diagnosis program of Li-ion battery controller de-
tects a malfunction in the CPU.

Li-ion battery controller

EVB-78

< DTC/CIRCUIT DIAGNOSIS >

P3030 CELL CONTROLLER LIN

P3030 CELL CONTROLLER LIN

DTC Logic

INFOID:0000000010121061

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 P3030 detected?

YES

>> Refer to 

EVB-78, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010121062

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 “P3375 - P33A4” is detected simultaneously with “P3030”.
Is P30F3 detected?

YES

>> • 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"

.

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

“P3399” - “P33A4”. Refer to 

EVB-133, "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

P3030

CELL CONT LIN

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

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