Classification:

Reference:

EL22-015A

Date:

NTB23-024A

May 10, 2024

VEHICLE WILL NOT START AND DTCS P31E7 AND P0AA6
STORED IN EV/HEV CONTROL MODULE
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLES:
APPLIED SYSTEMS:

2019-2025 LEAF (ZE1)
62 kWh Battery Pack (4th Character of the VIN is B or C)

IF YOU CONFIRM
The vehicle does not start,
AND
DTCs P31E7 for “RESTART INHIBITION” and P0AA6 for “HV BATTERY VOLTAGE
SYSTEM ISOLATION” are stored in the EV/HEV Control Module.

ACTION
Follow the SERVICE PROCEDURE in this bulletin to:
1.

Perform ESM diagnosis for DTCs P31E7 or P0AA6 to determine if a Li-Ion battery
module triggered the DTCs.


If a Li-Ion battery module did not trigger the DTCs, this bulletin does not apply.
Refer to ASIST for further diagnosis.

2.

Inspect the Li-Ion battery module for a bent retention plate.

3.

Replace the Li-Ion battery module, if applicable.

IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you
will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it
contains information that is essential to successfully completing this repair.
Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
1/5

SERVICE PROCEDURE

Electric vehicles contain a high voltage battery. There is 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. Touching high voltage components without wearing appropriate Personal
Protective Equipment (PPE) will cause electrocution.

To avoid the risk of death or severe personal injury, the technician:













Must follow the assembly procedure as outlined in the ESM.
Must use the tools specified in the ESM.
Must not use battery-powered or pneumatic tools for HV procedures.
Must ensure the correct fasteners are properly applied in the correct locations.
Must ensure all fasteners are properly tightened to the specific torque provided in
the ESM.
Must conduct work in the proper environment.
Must wear the appropriate Personal Protective Equipment (PPE) consisting of
gloves, shoes, face shield and glasses before beginning work on the high voltage
system.
Must have EV Specialist Training certification.
Must not allow workers other than the responsible person to touch the vehicle
containing high voltage parts.
Must keep others from touching the high voltage parts; these parts must be
covered with an insulating sheet except when using them.
Must remove the service plug in order to disconnect the high voltage circuits
before performing inspection or maintenance of high voltage system harnesses
and parts.
Must always carry the service plug in a pocket of the responsible worker or place
in the tool box during the procedure to prevent the plug from being connected by
mistake.

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NTB23-024A

These procedures are to be performed ONLY by a technician with current LEAF
certification.

Follow all Warning, Caution, and Danger instructions in the ESM.

1.

Perform ESM diagnosis for DTCs to determine which Li-Ion battery module has
caused the DTC.


The affected module will only be in module row A or B (Figure 1).

Module row A

Module row B

Figure 1

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NTB23-024A

Do not bring the vehicle into the READY status with the service plug removed unless
otherwise instructed in the Electronic Service Manual (ESM). A malfunction may occur if
this is not observed.

2.

Remove and inspect the affected Li-Ion battery module for a bent retention plate.


If a Li-Ion battery module has a bent retention plate (Error! Reference source
not found.), replace the Li-Ion battery module.
o Refer to the ESM: ELECTRIC POWER TRAIN > EV BATTERY SYSTEM >
62kWh LI-ION BATTERY > DISASSEMBLY AND ASSEMBLY > MODULE >
MODULE : Disassembly & Assembly
IMPORTANT: Make sure to follow all Dangers, Warnings, Cautions, and
additional work procedures outlined in the ESM.



If the Li-Ion battery module does not have a bent retention plate (Figure 3), this
bulletin does not apply. Refer to ASIST for further diagnosis.
Normal retention plate

Bent retention plate
Figure 3

Figure 2

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NTB23-024A

PARTS INFORMATION
DESCRIPTION

PART NUMBER

SEAL – BATTERY

295G3-3NF0A

QUANTITY
1
If Needed
1
If Needed
1

WASHER – DRAIN PLUG

11026-01M02

1

295B9-5SF9D
BATTERY MODULE – LITHIUM ION
295B9-5SF9E

HINT:


If the removed Li-Ion battery module’s part number is 295B9-5SF9A, replace with
new Li-Ion battery module part number 295B9-5SF9D.



If the removed Li-Ion battery module’s part number is 295B9-5SF9B, replace with
new Li-Ion battery module part number 295B9-5SF9E.

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
Reference the current Nissan Warranty Flat Rate Manual and use the JR section indicated
Flat Rate Time (FRT) for module replacement.

AMENDMENT HISTORY
PUBLISHED DATE REFERENCE
March 14, 2023

NTB23-024

May 10, 2024

NTB23-024A

DESCRIPTION
Original bulletin published
APPLIED VEHICLES updated, page 2 revised,
NOTE reference changed to HINT

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NTB23-024A