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TECHNICAL SERVICE BULLETIN 23-2348
Illuminated MIL And/Or Powertrain Malfunction (Wrench) Indicator With Various DTCs - Built On Or 09 November
Before 17-Mar-2023
This bulletin supersedes 23-2257.
Model:
2021-2023 Mustang Mach-E
Markets: Canada, USA
Summary
This article supersedes TSB 23-2257 to update the Parts List.
Issue: Some 2021-2023 Mustang Mach-E vehicles built on or before 17-Mar-2023 may exhibit an illuminated malfunction indicator lamp (MIL) and/or
powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P0563, POADA, POADE, POAA1, POAA4, POAAS, POAA2, POD10, PODOF,
and/or POC78 stored in battery energy control module (BECM). It may also have a low/discharged 12V battery and/or display a Stop Safely Now message
in the instrument panel cluster (IPC). This may be due to the high voltage battery junction box (HVBJB). To correct the condition, follow the Service
Procedure to replace the HVBJB and reprogram the BECM.
Action: Follow the Service Procedure to correct the condition on vehicles that meet all of the following criteria:

+ 2021-2023 Mustang Mach-E

+ Built on or before 17-Mar-2023

+ Illuminated MIL and/or powertrain malfunction (wrench) indicator with DTCs P0563, POADA, POADE, POAA1, POAA4, POAAS, POAA2,

P0D10, PODOF, and/or POC78 in the BECM
Parts
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Parts
Parts To Inspect And Replace Only If Necessary
Service Part Number | Quantity [Description [Unit of Issue| Piece Quantity
LJ9Z-10A687-A _ | if Needed |High Voltage Battery Cover Seal
Warranty Status: Eligible under provisions of New Vehicle Limited Warranty (NVLW)/Service Part Warranty (SPW)/Special Service Part (SSP)/Extended
Service Plan (ESP) coverage. Limits/policies/prior approvals are not altered by a TSB. NVLW/SPW/SSP/ESP coverage limits are determined by the
identified causal part and verified using the OASIS part coverage tool.
Labor Times
No.
2021-2023 Mustang Mach-E: Retrieve DTCs And Vehicle Build Date, Replace The HVBJB (Do Not Use With Any Operations 232348A | 5.7 Hrs.
Outside Of This Article)
2021-2023 Mustang Mach-E: Reprogram The Appropriate Modules As Required By The Software Update And Service Procedure, | MT232348 | Actual
Includes Time To Download And Run The BECM Reset DTC Occurrence Counter Application If Required (Can Be Claimed With Time
Operation A)
Repair/Claim Coding
Causal Part: 10C666
Condition Code:
Service Procedure
1. Replace the HVBJB. Refer to Workshop Manual (WSM), Section 414-03A, Removal and installation.
2. Reprogram the BECM to latest software available. The BECM is part of the powertrain coordinated flash.
(1). Connect a battery charger to the 12-volt battery. If the 12-volt battery is discharged, recover the battery. Refer to WSM, Section 414-01, Diagnosis
and Testing.
NOTE: To prevent the battery saver mode from activating on the vehicle, make sure the negative cable of the charger is installed on a chassis or
engine ground, and not the 12-volt battery negative terminal. Do not have the vehicle plugged into the high voltage battery charger during
programming. This can cause incorrect module programming. Make sure only the 12-volt battery charger is installed.
3. Reprogram the PCM using the latest software level of the Ford Diagnosis and Repair System (FDRS) scan tool.
4. Check the availability of software updates on the following modules and update as required:
* Secondary on-board diagnostic control module (SOBDM)
+ Battery energy control module (BECM)
* Secondary on-board diagnostic control module B (SOBDMB)
* Secondary on-board diagnostic control module C (SOBDMC)
+ Anti-lock brake system (ABS) module
NOTE: Only one module may be updated at a time.

5. Clear any stored DTCs related to this concern.

6. If DTCs POADA, POADE, POAA1, and/or POAA4 remain present, download and run the BECM - Reset Diagnostic Trouble Code (DTC) Occurrence
Counter application in FDRS.

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NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do the job properly and safely. It informs

these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper vehicle service. The procedures should not be performed by "do-it-

yourselfers", Do not assume that a condition described affects your car or truck. Contact a Ford or Lincoln dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy

and Extended Service Plan documentation determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article. The information in this Technical Service

Bulletin (TSB) was current at the time of printing. Ford Motor Company reserves the right to supersede this information with updates. The most recent information is available through Ford Motor

Company's on-line technical resources.